Thursday, July 17, 2008

100% Carbon Free Electricity by 2018

We need a massive increase in electricity generated from alternative energy.

Here's Al Gore's vision:



Here's one way to achieve 100% Carbon Free Electricity

Thoughts?

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Monday, August 06, 2007

House Passes 15% Renewable Energy by 2020



The United States House of Representatives has passed an Energy Bill requiring utility companies to produce 15 per cent of their electricity from renewable sources such as wind and solar power by 2020.

The Bill passed in the House on a 241-172 vote, despite strong opposition from electric utility companies and the White House, which has threatened to veto the measure. Twenty six Republicans voted in favor and nine Democrats opposed the bill.

A senior analyst for Lazard Capital Markets described the bill as "a significant positive step towards creating a cohesive energy policy."

The renewable electricity standard applies only to investor-owned utilities and exempts rural electric cooperatives, municipal utilities, the Tennessee Valley Authority and the state of Hawaii from the mandate.

The bill also calls for stronger energy efficiency standards for appliances and lighting and incentives for building more energy-efficient buildings. The bill bans the sale of 100-watt incandescent light bulbs by 2012 and requires that all bulbs be 300% more efficient than today’s ordinary bulbs by 2020. The bill also includes a range of loan guarantees, federal grants and tax breaks for alternative energy programs. These include building biomass factories, research into making ethanol from wood chips and switch grass and producing better batteries for hybrid cars.

The bill will repeal a tax break for oil companies from 2004, and another tax break relating to income from foreign oil production. Critics of the two tax breaks called them loopholes that the industry had taken advantage of.

The 786-page House energy bill does not include an increase in fuel-efficiency standards for cars and light trucks. That issue, as well as whether to force major increases in the use of E85 fuel as a substitute for gasoline, were left to be negotiated when the House bill is merged with energy legislation the Senate passed in June.

"There's a war going on against energy from fossil fuels" said Representative Ralph Hall, Republican-Texas. Representative Joe Barton predicted the bill "isn't going to go anywhere" because President Bush would veto it if it reaches his desk.

In a somewhat surprising comment from the White House, they accused the bill of making "no serious attempts to increase our energy security". This defies commonsense as by producing more electricity from domestic renewable sources rather than with imported natural gas by definition increases the United States' diversity and security of energy supply.

As with all legislation the details (such as a subsidy for installing gas pumps for expensive and inefficient E85 fuel) need to be checked carefully. Regardless a 15% renewable energy standard is good news.

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Monday, May 07, 2007

Brief Analysis of Climate Change Report



Here’s my brief analysis of and comments on the recent IPCC working group report on Mitigation of Climate Change released from Bangkok, Thailand as it relates to alternative energy.

Energy Efficient & Net Zero Energy Buildings

Energy efficiency and renewable energy are rightly held to be a key ways to reduce carbon emissions. Buildings, both residential and commercial, are a significant emitter of greenhouse gasses.

Solar hot water heating can be used to provide up to 70% of annual hot water needs for homes, it can also be used in commercial buildings that require significant hot water such as gyms and nursing homes.

Geothermal (ground source heat pumps) is a lesser known source of alternative energy which can be used to both heat and cool buildings in a highly efficient way and is suited both to residential and commercial buildings. It can also be used to provide hot water. As bore holes and/or trenches need to be dug for geothermal to be installed, it is particularly suited to new builds.

Electricity can be provided from renewable sources via the grid (e.g. wind power) or off-grid it can be generated using for example solar photovoltaic panels (PV).

The use of insulation, natural light & shade, low energy lighting, motion detection lighting etc. can further reduce energy usage.

As noted in the report appropriate building codes can minimise carbon emissions from buildings.

Alternative Energy = Energy Security

The report notes that nations seeking energy security (security of supply) can help achieve it using alternative energy. Nations lacking their own fossil fuels resources should be concerned with the negative impact reliance on fossil fuels can have on their economies. By increasing utilisation of alternative energy resources, nations can increase their energy security.

Transport Policy & Fossil Fuels Subsidies

I was disappointed by the report’s lack of vision on transport. It correctly notes that past increases in efficiency in internal combustion engine (ICE) design have been used to increase power rather than fuel efficiency meaning vehicle carbon emissions have continued to climb. This trend has even continued into hybrid vehicles with performance being favoured over fuel economy (e.g. Lexus hybrid cars). Mention was made of making increased use of biofuels, which can actually significantly increase carbon emissions (see this post on Palm Oil Biodiesel). The glaring emission, is the need for a fundamental shift from the internal combustion engine to electric vehicles. I got the impression the report in trying to build consensus was avoiding treading on any toes. Perhaps that’s why it recommended only reducing rather than eliminating the subsidisation of fossil fuels.

Research and Development + Technology Transfer

India and China will soon be at the top of the list of carbon emitting nations. The report wrongly suggests that because many new power stations are being built in developing nations, they will be using new energy efficient designs and technologies. While new power stations may be more efficient than those built decades ago, for cost reasons less efficient technology is usually used (for more details see this post on Clean Coal). The report notes there have been low levels of investment in research and development. Investment is needed now and much more should be done to aid the transfer of the most energy efficient technologies between nations.

IPCC working group report on Mitigation of Climate Change (pdf link)

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Monday, February 05, 2007

Seeing Red: Palm Oil Biodiesel



In the enthusiasm for renewable energy and taking care of our environment, it is easy to assume that making fuel from plants (biofuel) must be by definition "green" and renewable. However when it comes to energy issues, easy assumptions can be dangerous assumptions. In previous years some politicians and advocates in Europe have made these assumptions without sufficient thought and research and secured government subsidies for companies importing palm oil from South East Asia to make biodiesel for transport and for use in electricity generation.

The demand for palm oil in Europe has soared in the last two decades, first for use in food and cosmetics, and more recently for fuel. This cheap oil can be used for a variety of purposes, including as an ingredient about 10 percent of supermarket products, from chocolate to toothpaste.

Promoted by hundreds of millions of dollars in national subsidies, the Netherlands quickly became the leading importer of palm oil in Europe, taking in 1.7 million tons in 2006, nearly double the previous year.



Now it is increasingly difficult to ignore the mounting body of scientific evidence that palm oil plantations in Indonesia and Malaysia, rather than preserving the environment are in fact actively destroying it. By subsidising biofuels, European governments have artificially raised demand for palm oil in Europe, and accelerated the destruction of huge areas of rainforest in South East Asia. Palm oil plantations are often expanded by draining and burning peatland, releasing enormous amounts of carbon dioxide into the atmosphere. As a result Indonesia has become the world's third largest emitter of carbon dioxide, ranked after the United States and China, according to a study released in December by researchers from Wetlands International and Delft Hydraulics, both based in the Netherlands.

The 2003 European Union Biofuels Directive, which required all member states aim to have 5.75 percent of transportation run on biofuel in 2010, is now under review. In the Netherlands, the data from Indonesia has prompted the government to suspend palm oil subsidies.

In Europe a small amount of rapeseed and sunflower oil is used to make diesel fuel, however increasingly plant oils are being imported from the tropics, since there is simply not enough plant matter or land for biofuel production at home. So while the billions of dollars in European subsidies appear to have reduced carbon emissions in European countries by importing biofuels, this has been achieved by exporting them and increasing their impact many times by the permanent destruction of rainforest and peatland in South East Asia.

For anyone familiar with how the ethanol industry works in the United States, they will be unsurprised to learn that the palm oil industry was promoted long before there was adequate research. Biofuel Watch, an environment group in Britain, now says that "biofuels should not automatically be classed as renewable energy." It supports a stop on subsidies until more research can determine if various biofuels in different regions are produced in a nonpolluting manner. The group also suggests that all emissions arising from the production of a biofuel be counted as emissions in the country where the fuel is actually used, providing a clearer accounting of environmental costs.


BEFORE: rainforest on the Indonesian part of the island of Borneo

Friends of the Earth estimates that 87 percent of the deforestation in Malaysia from 1985 to 2000 was caused by new palm oil plantations. In Indonesia, the amount of land devoted to palm oil has increased 118 percent in the last eight years.


AFTER: a palm oil plantation

Peat is an organic sponge composed of 90 percent water that stores huge amounts of carbon, which when it is drained emits huges amounts of carbon into the atmosphere.

Even worse peatland is often burned to clear ground for plantations. The Dutch study estimated that the draining of peatland in Indonesia releases 660 million tons of carbon a year into the atmosphere and that fires contributed 1.5 billion tons annually.


Kuala Lumpur, Malaysia
the haze has covered much of SE Asia for extended periods of time since 1997

The total is equivalent to 8 percent of all global emissions caused annually by burning fossil fuels, the researchers said. "These emissions generated by peat drainage in Indonesia were not counted before," according to a Wetlands spokesperson. "It was a totally ignored problem."

While for the moment the widescale destruction of rainforests in South East Asia continues, hopefully the palm oil story will serve as a cautionary tale which will lead to much better informed policymaking and behaviour. Politicians must resist the urge to rush to legislate and subsidise in order to bask in the glow of being seen to be "doing something" while a number of so-called green companies profit from taxpayer subsidised destruction. Energy policy must make sense from a scientific (i.e. it should be energy positive), economic and environmental viewpoint. However the continued promotion of ethanol and coal-to-liquids calls for continued skepticism.

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Wednesday, July 26, 2006

Is Ethanol / E85 Fuel the Solution?



I've recently received a number of emails calling for me to Kick the Oil Habit by supporting E85 which is a liquid fuel made up of 85% ethanol and 15% regular gasoline. Having previously had my doubts about ethanol I emailed fellow blogger the Engineer Poet seeking his opinion. A large part of this resulting post is based directly on his reply and as such the credit belongs to him.

So is E85 fuel the answer to America's (and the world's) addiction to oil?

E85 fuel is not the solution. It is not even a part of the solution, it is a part of the problem. Here's why, in a nutshell:

All US vehicles can burn 10% ethanol (E10), but the US does not even produce half as much ethanol as universal E10 would require. We make about 5 billion gallons of ethanol, but use 140 billion gallons of gas.

E85 and "flex fuel" is a loophole for the automakers to sell guzzlers without having to pay CAFE penalties. It makes the problem worse. Ending the loophole probably means ending E85, because there is no other reason for it to exist.

Since the best estimate is that every gallon-equivalent of ethanol takes about 4/5 of a gallon-equivalent of other fossil fuel to make it, each gallon of E85 really represents about 0.6 gallons-equivalent of various fossil fuels. Since most flex-fuel vehicles get roughly 2/3 the mileage on E85 as they do on gasoline, they burn about 90% as much fossil energy even at their best.

Even if we can use "cellulosic ethanol" to reduce the inputs of fossil-derived fertilizer and whatnot, we can't make enough no matter what we do. The efficiency of the average gasoline-powered vehicle is about 15%, and we just can't grow enough inputs to make up for throwing 85% of our produced energy away. The most efficient use of biomass is in local combined heat and power plants, not as a feedstock for ethanol.

Low corn prices and high oil prices, and a government subsidy of 51 cents per gallon have fuelled unprecedented growth of the ethanol industry. In the case of the U.S. ethanol industry, fossil fueled trucks ship the fuel halfway across the country from the population sparse corn belt to population and car dense states like California and Texas. Science magazine found only a 13% reduction in CO2 emissions for bioethanol over gasoline (and only 11% for E85 fuel). U.S. government federal records show a single ADM corn processing plant in Clinton, Iowa generated nearly 20,000 tons of pollutants including sulfur dioxide, nitrogen oxides, and volatile organic compounds in 2004. The EPA considers an ethanol plant as a "major source" of pollution if it produces more than 100 tons of any one pollutant per year. From an emissions standpoint it is far preferable to drive a fuel efficient gasoline car than a low efficiency flex fuel vehicle running on E85.

E85 fuel is not a solution. It is a distraction, like hydrogen vehicles. Further, every E85 vehicle is also a gasoline-compatible vehicle. It will maintain demand for petroleum as long as it is on the road. If you want to end oil addiction you have to get rid of the things which use it.

E85 ethanol fuel may make a small contribution now, but it is a dead end. If we want to really be free of fossil fuels (including imported oil), we have to re-think things as completely as changing from riding horses to driving motor cars.

Ethanol has already created an addiction of its own. The farmers and agribusiness interests which got into it found it hugely profitable, and they have big investments in its continuation. Even if you developed a better way of using corn today, you'd still have a lot of money lobbying to use it for ethanol, and even force it to be used for ethanol.



This is already a race between technologies which can make us independent of fossil fuel, and technologies which get subsidy money. In that race, the subsidy seems to win every time. At least 43 percent of Archer Daniels Midland's annual profits are from products heavily subsidized or protected by the American government. For every $1 of profit earned by ADM's ethanol operation (the largest in the U.S.), it costs taxpayers $30. If you subsidize a technology which can only replace half our gasoline (and none of our diesel, jet fuel, or anything else), you're probably going to be stuck with it.

A hobbyist wrote an article about his home-built plug-in hybrid electric vehicle (PHEV). He published this article in Mother Earth News... in 1978.

We don't need any new technology. We could be building these cars today. Heck, we could have been building them in 1995 (when the CARB ZEV mandate came in)... or maybe even 1985. They would have been crude, but they would have gotten the job done. We can do far better today, of course.

People finally got fed up and started building their own PHEV's out of Toyota Priuses. It's time to quit the excuses, both making them and accepting them.

CAFE regulations utterly failed to contain U.S. motor-fuel consumption. This is not opinion, this is historical fact. Now the E85 fuel campagin wants to do the same thing again, but "reduce" consumption with E85 instead of directly cutting gallons-per-mile. You'll get the same result as before - if driving doesn't cost more, people will continue to drive as much or more.

There are roughly 200 million light-duty vehicles in the USA. One recent news item says that there will be all of 6 million flex-fuel vehicles by 2007. That's a whole 3%.

The average flex-fuel vehicle is a guzzling truck (because they get the biggest CAFE preference from it). If those trucks get 13 MPG on E85, and they drive the national average of 13,000 miles/year, those 6 million vehicles would consume 5.1 billion gallons of ethanol. That's roughly the same as the total production capacity of the nation.

The E85 fuel campaign is currently sponsoring a road trip to highlight the usage of E85, but also the difficulty of driving a car solely on E85 due to its lack of availability.


the electric Tesla Roadster - 250 mile range, one cent a mile, 0-60 in 4 seconds, 130 mph top speed - photo from Autoblog Green

However, had this trip been made in a Tesla Roadster or tZero from AC Propulsion, it could have instead highlighted how EASY it is to get electricity wherever you are... even if you never stop at a filling station! Using non-toxic lithium-ion batteries they have a 250 mile range, charging overnight from an electric outlet.

E85 fuel is a distraction, a diversion, a red herring. Just as the switch to "hydrogen economy" (remember that?) was before it. Both require huge investment, new infrastructure and will not lead to a post-oil economy. The hydrogen economy was promoted principally by both automakers and oil companies as a stalling strategy to avoid having to change the way they currently do business. Oil companies were also aware in the unlikely event that the hydrogen economy did take off (with huge taxpayer subsidies) that they would be supplying hydrogen produced from natural gas which they were already profitting from. The automakers sat around lamenting the fact they couldn’t start to build cars as there are hardly any hydrogen filling stations and the energy companies would not open commercial hydrogen filling stations as there is no demand for them. While appearing to want to do something, both the automakers and energy companies continued for a few more years with business as usual.


The Nissan Armada promoted on the E85 fuel site - with no fuel economy figures indicated

The campaign for E85 fuel is somewhat similar. The automakers are eager to produce flex fuel vehicles which require a relatively cheap modification to the highly profitable gas guzzling SUVs they already produce. By backing E85 fuel they can continue to produce the highly inefficient vehicles while appearing to be green (as seen in GM's Live Green Go Yellow campaign). Car and Driver magazine estimates the CAFE loophole could have saved GM more than $200 million in fines in 2005 alone.

As GM admits the consumer can choose “to operate on gasoline or on a blend of 85% ethanol and 15% gasoline. So, you can choose the fuel that's best for you. That's good to know, because E85 fuel is not yet widely available.” In other words in the vast majority of cases your new flex fuel vehicle will still be running on regular gas. Charter members of the National Ethanol Vehicle Coalition (NEVC), which promotes E85 fuel, when it was set up in June 2000 include GM, DaimlerChrsyler, and Ford.

Meanwhile E85 fuel is also been promoted by organisations such as the National Corn Growers Association, as well as regional and state corn growers organisations, associated agribusinesses and biofuel companies. All of which have a commercial interest in promoting E85 fuel. According to the Center for Responsive Politics, a clearinghouse on political donations, the agribusiness sector has funneled more than $190 million into federal election campaigns since the 2000 election cycle. In the NEVC’s bylaws its purpose is described as to "ensure that as decisions regarding the future of America’s use of alternative forms of transportation fuels are being made, ethanol has a role in the nation’s alternative transportation fuel market and support the expanded use of ethanol" and to "advance legislative proposals" to this effect. This seems to be regardless of whether ethanol/ E85 fuel is the best or is even a good solution to our energy challenges.

As the Engineer Poet points out in this post, burning fuel for transportation is very inefficient way of using energy. Whether you are fed up with the current use of petroleum for transportation for environmental, political or financial reasons E85 fuel is simply not the answer. What we need is a step change, as represented by moving from using gas burning vehicles to electric vehicles.

To encourage this, I urge you to sign this online plug in hybrid campaign asking automakers to produce plug-in hybrid electric vehicles (PHEVs).

Autoblog Green's exclusive interview with Tesla Motors' chairman

Tesla Roadster Video

Archer Daniels Midland (ADM) - the Largest U.S. Ethanol Producer

Vinod Khosla Debunked

Car and Driver Magazine on the Promise of Energy Independence through Ethanol

USA Today on the Ethanol Debate

Cutting Down Borneo's Rainforests to Make BioFuels

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Monday, July 17, 2006

Why Alternative Energy?



A poll carried carried out for the BBC World Service of nearly 20,000 people from across 19 countries found wide support for alternative energy strategies.

The poll illustrates a perceived triple threat from the way the world produces and uses energy.

Majorities across all 19 countries indicate that citizens fear:

the climate and environment are being harmed
that the global economy will be destabilised
that competition for energy will lead to greater conflict

Some eight out of 10 of those questioned were worried about the threat to the environment. In Australia, Great Britain, Canada and Italy the level of concern topped 90%.

Doug Miller, president of the poll firm GlobeScan, said: "What's fascinating is that in the midst of historically high energy prices and geopolitical tensions, the number one energy concern in every industrialised country we surveyed is the environmental and climate impacts."

Creating tax incentives to encourage the use of alternative energy sources such as wind and solar power found favour with 80% of respondents.

But there was lukewarm support for more nuclear energy to reduce reliance on fossil fuels. On average, 49% were in favour of building more nuclear plants.

Majorities of 60% or more in 18 of the 19 countries polled said they feared energy shortages and prices would destabilise the world economy.

The least concerned was Russia, a major oil and gas producer, which benefits from higher prices.

Both US and EU leaders have warned Russia not to use energy as a tool of foreign policy. Earlier this year, the nation's monopoly, Gazprom, cut off gas supplies to Europe during a price dispute with Ukraine.

Some 73% of those questioned were worried that energy shortages would lead to greater conflict among nations.

In total, 19,579 citizens were interviewed in Australia, Brazil, Canada, Chile, Egypt, France, Germany, Great Britain, India, Israel, Italy, Kenya, Mexico, Philippines, Poland, Russia, South Korea, Ukraine and the US.

Polling was conducted for the BBC World Service by polling firm GlobeScan and its research partners.

Full Article on BBC News

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Thursday, March 09, 2006

Mixed Signals & Federal Funding for Alternative Energy Research



There have definitely been some mixed signals on alternative energy research recently. At the same time President Bush's State of the Union address called for a 22 percent increase in federal spending to develop alternative energies, dozens of staffers and contractors for the National Renewable Energy Laboratory in Golden, Colorado, were being laid off.

The disconnect was a political embarrassment for the president, so federal officials restored the laboratory's funding, rehiring the workers who had been laid off just in time for President Bush’s scheduled speech at the NREL.

In his speech the President acknowledged the confusion, “I recognize that there has been some interesting mixed signals when it comes to funding," President Bush said.

This comes at a time when a new national public opinion survey demonstrates overwhelming public support in the United States for government policies and investments that will support development of alternative energy sources. The survey of 1,000 registered voters was conducted by Public Opinion Strategies of Alexandria, VA, for the Energy Future Coalition. The survey’s findings included:

According to the survery there is nearly unanimous support for a national goal of having 25% of the United States domestic energy needs met by alternative energy by the year 2025. Ninety-eight percent of voters see this goal as important for the country, and three out of four (74%) feel that it is "very important." Ninety percent of voters believe this goal is achievable.

Similar majorities support government action to encourage greater use of renewable energy. Eighty-eight percent of voters favor financial incentives, and 92% support minimum government standards for the use of renewable energy by the private sector.

Nearly all voters (98%) say the costs, such as the cost of research and development and the cost of building new renewable energy production facilities, would be worth it to get the United States to the 25% by 2025 goal.

Voters consider energy to be an important issue facing the country, rating it similarly with health care, terrorism and national security, and education, and ahead of taxes and the war in Iraq. Half (50%) of voters believe America is headed for an energy crisis in the future, and 35% believe the country already is facing a crisis.

So just how much is the United States government spending on alternative energy research? After the 22% increase the budget will stand at $771 million. This amounts to less than one percent of the $55,000 million the federal government spends annually on research, nearly half of which is devoted to healthcare.

It’s time for action.

Source for figures on federal funding for alternative energy research

President Bush's speech at the National Renewable Energy Laboratory

America's Energy Future

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Tuesday, July 26, 2005

Alternative Fuel: Ethanol Fuel Production Subsidies



I was recently taken to task by a reader for not giving more coverage to ethanol fuel (alcohol). I replied that I am yet to be convinced that ethanol is either energy positive or economically viable. I then forwarded her reply to the Engineer Poet who continued the correspondence resulting in a post entitled "the money-grubbing mendacity of the ethanol lobby" with accompanying calculations. In reply the original emailer sent me a press release from the "grassroots voice of the U.S. ethanol industry".

The Slate recently ran an article entitled "the ethanol subsidy is worse than you can imagine".

In it Robert Bryce reports that for the last generation, ethanol has been America's fuel of the future. But there has never been more hype about it than there is today. Green-energy analysts like Amory Lovins, environmental groups like the Natural Resources Defense Council, neoconservatives like James Woolsey, and farm groups like the American Coalition for Ethanol are all touting the biofuel.

Making ethanol, they claim, will help America achieve the elusive goal of "energy security" while helping farmers, reducing oil imports, and stimulating the American economy. But the ethanol boosters are ignoring some unpleasant facts: Ethanol won't significantly reduce our oil imports; adding more ethanol to our gas tanks adds further complexity to our motor-fuel supply chain, which will lead to further price hikes at the pump; and, most important (and most astonishing), it may take more energy to produce a gallon of ethanol than it actually contains.

The greens, hawks, and farmers helped convince the Senate to add an ethanol provision to the energy bill—now awaiting action by a House-Senate conference committee—that would require refiners to more than double their use of ethanol to 8 billion gallons per year by 2012. The provision is the latest installment of the ethanol subsidy, a handout that has cost American taxpayers billions of dollars during the last three decades, with little to show for it. It also shovels yet more federal cash on the single most subsidized crop in America, corn. Between 1995 and 2003, federal corn subsidies totaled $37.3 billion. That's more than twice the amount spent on wheat subsidies, three times the amount spent on soybeans, and 70 times the amount spent on tobacco.



The stickiest question about ethanol is this: Does making alcohol from grain or plant waste really create any new energy?

The answer, of course, depends upon whom you ask. The ethanol lobby claims there's a 30 percent net gain in BTUs from ethanol made from corn. Other boosters, including Woolsey, claim there are huge energy gains (as much as 700 percent) to be had by making ethanol from grass.

But the ethanol critics have shown that the industry calculations are bogus. David Pimentel, a professor of ecology at Cornell University who has been studying grain alcohol for 20 years, and Tad Patzek, an engineering professor at the University of California, Berkeley, co-wrote a recent report that estimates that making ethanol from corn requires 29 percent more fossil energy than the ethanol fuel itself actually contains.

The two scientists calculated all the fuel inputs for ethanol production—from the diesel fuel for the tractor planting the corn, to the fertilizer put in the field, to the energy needed at the processing plant—and found that ethanol is a net energy-loser. According to their calculations, ethanol contains about 76,000 BTUs per gallon, but producing that ethanol from corn takes about 98,000 BTUs. For comparison, a gallon of gasoline contains about 116,000 BTUs per gallon. But making that gallon of gas—from drilling the well, to transportation, through refining—requires around 22,000 BTUs.

In addition to their findings on corn, they determined that making ethanol from switch grass requires 50 percent more fossil energy than the ethanol yields, wood biomass 57 percent more, and sunflowers 118 percent more. The best yield comes from soybeans, but they, too, are a net loser, requiring 27 percent more fossil energy than the biodiesel fuel produced. In other words, more ethanol production will increase America's total energy consumption, not decrease it. (Pimentel has not taken money from the oil or refining industries. Patzek runs the UC Oil Consortium, which does research on oil and is funded by oil companies. His ethanol research is not funded by the oil or refining industries.)

Ethanol poses other serious difficulties for our energy economy. First, 8 billion gallons of ethanol will do almost nothing to reduce our oil imports. Eight billion gallons may sound like a lot, until you realize that America burned more than 134 billion gallons of gasoline last year. By 2012, those 8 billion gallons might reduce America's overall oil consumption by 0.5 percent. Way back in 1997, the General Accounting Office concluded that "ethanol's potential for substituting for petroleum is so small that it is unlikely to significantly affect overall energy security." That's still true today.

Adding more ethanol will also increase the complexity of America's refining infrastructure, which is already straining to meet demand, thus raising pump prices. Ethanol must be blended with gasoline. But ethanol absorbs water. Gasoline doesn't. Therefore, ethanol cannot be shipped by regular petroleum pipelines. Instead, it must be segregated from other motor fuels and shipped by truck, rail car, or barge. Those shipping methods are far more expensive than pipelines.

There's a final point to be raised about ethanol: It contains only about two-thirds as much energy as gasoline. Thus, when it gets blended with regular gasoline, it lowers the heat content of the fuel. So, while a gallon of ethanol-blended gas may cost the same as regular gasoline, it won't take you as far.

My latest post (July 2006) on ethanol and flex fuel vehicles can be found here:
Ethanol E85 Fuel

To support a real solution to our transportation energy challenges I encourage you to sign this online plug in hybrid campaign urging automakers to produce plug-in hybrid electric vehicles (PHEVs).

If you have comments I suggest the debate continues here.

Full Slate Article

American Coalition for Ethanol Press Release

Star Phoenix article criticising Pimental and Patzek's research

Rocky Moutain News' Coverage of the National Corn Growers Association Opinion

The Ohio Farm Bureau Federation's Coverage

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Thursday, June 23, 2005

World Leaders Needed: The Future of Oil and Everything Else



Today's post is inspired by an engineer, details of which I'll get to later.

Energy is the future. Our future depends on energy. Many people in the developing world spend much of their time thinking about and acquiring it. Firewood and food. Most people in the developed world spend little or no time thinking about or acquiring energy. An apparently endless supply of energy is assumed to be as certain as the sun rising tomorrow. Only a tiny proportion of us even consider this assumption, let alone question it.

And yet oil, gas and coal are finite and will run out (at least in economically significant and useful quantities). The end of cheap oil will arguably occur within a few short decades, if it is not already upon us. When I was at school I remember being told that oil would run out in a few decades. I remember feeling vaguely concerned, until it occurred to me that people much smarter than me must be working on it and would have a solution soon.

A few decades later I am wondering where these people are.

The answer of course is they live amongst us. Engineers, economists, bloggers, scientists, activists, and entrepreneurs. And yet at the moment most are not focused on solutions to our energy challenges, because many are not aware there is a problem.

Much of the mass media promotes materialism with shows such as MTV Cribs showing bigger and bigger houses with garages full of cars. Indeed here in the UK there seems to be one channel whose non-music programming is made up almost entirely of half hour shows titled "the fabulous life of" which seem dedicated to the worship of conspicuous consumption.

Most of our politicians seem dedicated to the "not in my term" mentality.

And yet despite our general lack of awareness, despite the scale of the challenges, the potential payoffs for coming up with solutions are huge.

For the companies and entrepreneurs who bring solutions to market there are bound to be significant financial rewards. Beyond this there is the prospect of a more peaceful world. I'm not proposing a utopian vision of a world where everyone lives in perfect harmony. However it is pretty easy to predict that having people compete over scarce resources is likely to result in conflict. Clean renewable energy offers the prospect of countries spending more time cooperating to harness the power of the sun, wind and ocean and less time competing over finite resources.

If the developed world stands to benefit from this, the developing world has even more to gain. Rather than experiencing the dirt and pain of industrialisation, renewable energy may allow them to leapfrog ahead.

As individuals it is time to become aware of our energy usage and its implications. Make our homes more energy efficient, switch to a renewable electricity supplier, generate some or all of our own power using means such as solar panels or mini wind turbines.

However it is not enough to act just as individuals. For humanity to move forward it is not about being more virtuous than everyone else. It is not about pointing fingers and assigning blame to drivers of certain types of car, people of a particular political affiliation or even to whole nations and continents. It is about building on what we can agree on and seeking consensus. We may not agree on the right solution but that's okay because there won't be one single solution - it will be a combination of many - it's more important to agree on a direction. A clean renewable, post fossil fuel future.

It is about informing, persuading, inspiring and influencing those around us. Our friends, neighbours, colleagues, society and the world at large.

Which brings me to the inspiration for this piece - a post by the Engineer Poet looking at the future of aviation once the cheap oil has run out and the discussion continuing in the comments section. It's just one example of people coming together to focus not on the problem, but on possible solutions.

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Monday, June 13, 2005

Energy Independence vs. Energy Illiteracy



Americans overwhelmingly want a new direction for U.S. energy policy in the United States and believe dependence on imported oil is a very serious problem.

These and other findings were part of a survey of attitudes on the environment conducted last month for the Yale School of Forestry and Environmental Studies by Global Strategy Group.

Dan Esty, director of the Yale Center of Environmental Law and Policy, was delighted by the large consensus across all regions.

"In a country where everything is so deeply divided, we have a staggeringly high percentage of people aligning for change," Esty said.

More than two-thirds say the federal government isn't doing enough, while 63 percent want President Bush to do more.

Just over half of those polled in the nationwide survey believe the environment in the United States is getting worse. Among Democrats, 70 percent take this pessimistic stance, as do a majority of independents and 33 percent of Republicans.

Party distinctions disappear on the seriousness of America's dependence on imported oil, with 94 percent of Republicans, 91 percent of independents and 93 percent of Democrats expressing concern.

Asked the best way to address this problem, 93 percent want the government to require the auto industry to improve gas mileage, an opinion that showed no gender or political gap.

This puts the electorate squarely at odds with Congress, which recently rejected a proposal to make SUVs and minivans more fuel efficient.

"This is a wake-up call to Washington. The political class appears to be out of touch with their constituents," Esty said.

Across the board, people favored more solar power facilities, wind-turbine farms and increased funding for renewable energy research.

To quote the conclusion of the excellent "End of Oil" by Paul Roberts which I just finished reading:

"Each year that we fail to commit to serious energy research and development or fail to begin slowing the growth of energy demand through fuel efficiency, each year that we allow the markets to continue treating carbon as cost-free, is another year in which our already unstable energy economy moves so much closer to the point of no return."

It's time to stop dropping the ball.

It's time to go gas optional.


Yale Center for Environmental Law and Policy Environmental Poll

The nationwide sample of 1,000 Americans over the age of 18 was randomly selected and the telephone poll was conducted from May 15-22. The survey has an overall margin of error of plus or minus 3.1 percentage points.

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Thursday, June 09, 2005

University of Illinois at Chicago Study Provides Boost for Wind Power



Mike Ramsey reports in the PJStar that Gov. Rod Blagojevich's proposed renewable energy standards for electric utilities would generate an estimated $7 billion in economic benefits and 7,800 new jobs through 2012, according to a University of Illinois at Chicago study commissioned by his administration.

The Illinois Commerce Commission is considering a Blagojevich-sponsored plan that would obligate power companies to generate 2 percent of the state's electricity from renewable sources beginning next year. The requirement would rise 1 percentage point annually to 8 percent by 2012, with wind power turbines providing most of the renewable power.

The 146-page report slated to be released today estimated the economic benefit to Illinois at about $1 billion annually, or $7 billion over seven years. The amount reflects private investment to build wind power turbines, the growth of maintenance and supply businesses and other economic trickle-down.

During the same time frame, nearly 8,000 new jobs would be created, the study said.

"We think this really creates a very strong case for what the governor has proposed," Steve Frankl, Blagojevich's environmental and energy policy adviser, said Wednesday. "It's clear that there are significant benefits for the state on the environmental front and the economic front."

William Worek, who oversaw the study at UIC's Energy Resources Center, said the goals explored in the document are "conservatively realistic."

"When other people talk about renewables, the tendency is to be overly optimistic," he said. "This report really looks at realistic scenarios that can be met versus something that may sound good but doesn't track in the sense of numbers."

Authors of the study crunched numbers beyond 2012, envisioning a scenario where power companies had to reach a 16 percent "renewable portfolio standard" by 2020 in Illinois. That would add another $14 billion in economic growth and an additional 4,500 jobs, Worek said.

Wind power farms already exist in Illinois. Developers have built farms in Lee and Bureau counties, and an energy cooperative in Pike County installed a single wind turbine. A nearly 300-turbine project is in the works in McLean County. Several other central Illinois counties have begun adopting wind farm ordinances in preparation for future developments.

The ICC originally was expected to consider a alternative energy plan last month. The process has taken longer than expected as interested parties, including utilities and consumer advocates, have met to hammer out details, using the Blagojevich proposal as a model. The commission may take action later this month, a spokeswoman said.

Currently, less then 1 percent of power sold to Illinois consumers comes from renewable sources. Most power is from nuclear and coal-burning power plants. Illinois annually consumes about 140 million megawatt hours, Frankl said.

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Monday, May 23, 2005

Wind Energy: Nasa Funded Study Identifies 72 Terawatts of Global Wind Power Potential



Stanford researchers have produced a new map that pinpoints where the world's winds are fast enough to produce wind power. The map may help planners place wind turbines in locations that maximize power harnessed from winds and provide widely available low-cost energy. After analyzing more than 8,000 wind-speed measurements to identify the world's wind-power potential for the first time, Cristina Archer, a former postdoctoral fellow, and Mark Z. Jacobson, an associate professor of civil and environmental engineering, suggest that wind captured at specific locations, if even partially harnessed, can generate more than enough power to satisfy the world's energy demands. Their report appears in the May Journal of Geophysical Research-Atmospheres, a publication of the American Geophysical Union.

"The main implication of this study is that wind, for low-cost wind energy, is more widely available than was previously recognized," said Archer.

The researchers collected wind-speed measurements from approximately 7,500 surface stations and 500 balloon-launch stations to determine global wind speeds at 80 meters (300 feet) above the ground surface, which is the hub height of modern wind turbines. Using a new interpolation technique to estimate the wind speed at hub height, the authors reported that nearly 13 percent of the stations had average annual speeds strong enough for windpower generation.

Wind speeds of 6.9 meters per second (15 miles per hour) at hub height, referred to as wind power Class 3, were found in every region of the world. Some of the strongest winds were observed in Northern Europe, along the North Sea, while the southern tip of South America and the Australian island of Tasmania also featured sustained strong winds. North America had the greatest wind-power potential, however, with the most consistent winds found in the Great Lakes region and from ocean breezes along coasts. Overall, the researchers calculated hub-height winds traveled over the ocean at approximately 8.6 meters per second and at nearly 4.5 meters per second over land (20 and 10 miles per hour, respectively).

The authors found that the locations with sustainable Class 3 winds could produce approximately 72 terawatts, that's 72,000 Gigawatts or 72 million Megawatts. A terawatt is one trillion watts, the power generated by more than 500 nuclear reactors or thousands of coal-burning plants. Capturing even a fraction of those 72 terawatts could provide the 1.6 to 1.8 terawatts that made up the world's electricity usage in 2000. Converting as little as 20 percent of potential wind energy to electricity could satisfy the entirety of the world's energy demands.

The study, supported by NASA and Stanford's Global Climate and Energy Project, may assist in locating wind farms in regions known for strong and consistent breezes. In addition, the researchers suggest that the inland locations of many existing wind farms may explain their inefficiency.

"It is our hope that this study will foster more research in areas that were not covered by our data, or economic analyses of the barriers to the implementation of a wind-based global energy scenario," Archer said.

Update: The excellent group blog WorldChanging has an image of the Global Wind Power Map

Original Article on Stanford University's Website

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Monday, April 18, 2005

Alternative Energy in Developing Countries: New U.N. Report


a Ghanaian woman

A United Nations environment agency survey has revealed the potential for renewable energy in some of the world's developing countries is much greater than previously thought. The UN Environment Agency (UNEP)'s four-year project to map the solar and wind resources of 13 countries has discovered thousands of megawatts of new renewable energy waiting to be unleashed in Asia, Africa, and South and Central America

"In developing countries all over the world we have removed some of the uncertainty about the size and intensity of the solar and wind resource," said UNEP executive director Klaus Toepfer. "SWERA (The Solar and Wind Energy Resource Assessment) is a good example of international cooperation that can produce a range of positive environmental and social outcomes. In the case of renewable energy, knowledge is literally power."

"SWERA (The Solar and Wind Energy Resource Assessment) has clearly demonstrated that the modest amounts needed to support renewable energy assessments can significantly change the way countries pursue their energy goals," said SWERA's project manager Tom Hamlin.

The countries where SWERA has carried out surveys to date are: Bangladesh, Brazil, China, Cuba, El Salvador, Ethiopia, Ghana, Guatemala, Honduras, Kenya, Nepal, Nicaragua, and Sri Lanka.

China alone has the potential for more than 100,000 megawatts of renewable power, while Brazil also has large amounts, according to the study.

Small countries also have surprising potential. Sri Lanka has a wind power potential of 26,000 megawatts, which is 10 times the country's installed electricity capacity.

Windy Lake Nicaragua gives the small Central American country 20,000 megawatts of potential renewable power.

In Guatemala, wind estimates before SWERA were mostly unknown, but is now estimated at 7000 megawatts, based on SWERA products. The Guatemala Ministry of Energy has established, with support from SWERA, the Center for Renewable Energy and Investment within the Ministry to carry out validation studies and identify sites for wind energy development.

The benefits for each country differ. "If you look at China and Brazil they're going to be manufacturing the (renewable) plants and there are big economic benefits in that," said Hamlin. "And there are broad economic benefits for the smaller countries," he said. "Instead of always importing petroleum they would have domestic resources so they would save on the costs and risks of having petroleum prices fluctuate wildly."

In the African country of Ghana, where the SWERA study discovered more than 2,000 megawatts of wind energy potential, this is "quite a significant amount" according to UNEP, as it estimates that Africa need just 40,000 megawatts of electricity to power its industrialisation.

Solar and Wind Energy Resource Assessment Website

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Wednesday, March 16, 2005

Nuclear Power: Nuclear Energy Back on the Agenda for Britain?

Robert Edwards writes in Scotland's Sunday Herald about the resurgence of nuclear lobby in the UK:

Nuclear power is back on the agenda with a bang in Britain. The speed with which it has moved centre stage in the political debate has taken everyone by surprise – including the scientists, civil servants and politicians that support it. Most people had naively assumed that the issue had been effectively killed off for at least a decade by the government’s energy policy White Paper in February 2003.

After years of investigations and discussions, it concluded by dismissing the industry’s call for a £10 billion programme to build 10 new nuclear power stations as an “unattractive option”. Nuclear power could not be ruled out for the future, it said, but there was no current economic case for it.

Yet now, just two years down the road, here we are rehearsing the same arguments again. Some suspect that this is the result of a poorly organised conspiracy by a powerful nuclear lobby, deeply embedded in the government establishment.

“The nuclear industry has grasped at climate change like a drowning man clutching a passing log,” said Tom Burke, a visiting professor at Imperial College, London, who was an environmental advisor to four ministers.

Public interest was stirred last year by a few leading “green” gurus coming out in favour of nuclear power. The most famous was the originator of the Gaia theory of the Earth as a self-regulating organism, Professor James Lovelock. He is linked with a small group known as Environmentalists for Nuclear Energy based near Paris. His argument is that because nuclear power emits much less carbon dioxide – a greenhouse gas – than fossil fuels, it is the best technology available to combat the threat of climate change.

Pro-nuclear environmentalists, however, make up only a tiny fraction of the green movement, and they are not new. They can trace their ancestry back to those in the 1950s and 1960s who were so appalled at the destruction wrought by the atomic bombs dropped on Japan by the US in 1945, that they devoted their lives to “atoms for peace”.

There has also been a flurry of leaks from Westminster, all suggesting mounting pressure within government to take decisions on nuclear power. The latest, last weekend, was a memo to the new industry secretary Alan Johnson from his senior energy official Joan MacNaughton.

“It is generally easier to push ahead on controversial issues early in a new parliament”, she advised the minister. She also revealed that the environment secretary Margaret Beckett had been preventing the government’s review of climate change policy from considering nuclear power.

Ministers in London are sharply divided on the wisdom of building more nuclear stations, which may account for some of the leaks. But with the Prime Minister leaning in favour, and Gordon Brown at the Treasury worried about the public spending implications, it is difficult to predict what will happen.

An opinion poll for the BBC during the election showed that only 17% of people in Scotland supported more nuclear stations, compared to 73% who backed more wind farms.

Public opinion aside, there are major barriers to new nuclear stations. A new programme would likely be based on an untested US-designed reactor known as the AP1000, which is claimed to be cheaper and safer. But before it could be licensed for use in Britain, it would have to be fully assessed by the government’s Nuclear Installations Inspectorate. Unfortunately, as the Sunday Herald has previously revealed, the inspectorate is chronically short of staff, and has been embroiled in a morale-sapping work-to-rule for more than 18 months.

The former chief inspector of the Nuclear Installations Inspectorate, Laurence Williams, told a meeting of the government’s Nuclear Safety Advisory Committee last November that evaluating an established international design would take 25 experienced inspectors about two years. It would take at least another year to recruit and train them, plus public inquiries which “would be a significant further drain on resources”.

It takes about 10 years to build a nuclear station from scratch, so according to Peter Roche, the earliest any new reactor could be up and running is 2018. This is seven years after Hunterston B is scheduled to close.

It is often forgotten that nuclear power, as a generator of electricity, can only avoid the pollution caused by burning coal, oil or gas in power stations. It can do nothing to prevent the vast amounts of carbon dioxide emitted by vehicles and farms.

“Energy efficiency can start reducing carbon dioxide emissions today,’’ argued Roche. ‘‘Just one or two efficiency measures, such as making sure all new central heating boilers and white goods are state-of-the-art, would be enough to displace the savings new reactors could make.”

Even representatives of the nuclear industry, when asked to comment on the prospect of new stations, seem unenthusiastic. A spokeswoman for the UK Atomic Energy Authority, which operates Dounreay, said: “Our mission today is very much about decommissioning our sites in a safe and publicly acceptable manner.”

Do we need nuclear power?

At a UK level the last major independent analysis of the question was conducted by the Cabinet Office’s Performance and Innovation Unit, in preparation for the 2003 energy White Paper. It suggested that a combination of increased energy efficiency, the widespread use of combined heat and power stations and a boost in renewable energy sources such as wind and wave power could sustain an annual growth rate of 2%, while cutting carbon emissions.

In Scotland an investigation for the Scottish Executive in 2001 by energy consultants Garrad Hassan concluded that all forms of renewable energy in Scotland could potentially generate a massive 214 terawatt/hours of electricity a year.

That is more than four times as much as the 50 terawatt/hours generated north of the Border in 2002, almost a third of which was exported to England. Only about a sixth of the total is currently provided by the Hunterston B nuclear station.

“A combination of demand reduction and energy efficiency, along with increased renewable energy capacity in non-environmentally sensitive areas would make new nuclear power plants unnecessary to meet climate change targets, even with the planned closure of Hunterston B,” said Clifton Bain from the Royal Society for Protection of Birds in Scotland.

Keith Parker, chief executive of the Nuclear Industry Association, was encouraged by Tony Blair’s remark last week that the debate about climate change should include “serious consideration” of nuclear power. “Nuclear power can continue to make a significant contribution to securing future energy and environmental commitments,” he told the Sunday Herald.

what is wrong with nuclear power?

A common assumption about nuclear power is that it can be relied upon to keep churning out lots of power. The reality, as nuclear operators will sometimes admit, is rather different.

British Energy’s Montague says that it’s “no secret” that there are “reliability problems” with the advanced gas-cooled reactors such as those at Hunterston B and Torness. One problem is that some of the thousands of graphite bricks that surround the reactor cores are cracking, threatening the safe running of the plants.

The performance of British Energy’s reactors is worse than those in other parts of the world. According to Sig Berg, the managing director of the World Association of Nuclear Operators, the unplanned loss of nuclear generation in the UK was 12% in 2002, compared to under 2% in the US.

The cost of nuclear power is also daunting. Cleaning up the radioactive mess left at Dounreay, which only ever produced very small amounts of electricity, is likely to cost at least £4bn over the next four decades. The estimated total cost of cleaning up all Britain’s nuclear plants – which is being met by taxpayers – is £50bn.

The vulnerability of nuclear companies to price fluctuations was starkly demonstrated by the near-collapse of British Energy in 2002. It had to be bailed out by the government with a £650m loan from public funds.

One consequence of that was the company’s decision to close its Peel Park headquarters in East Kilbride. New documents released to the Sunday Herald last week under the Freedom of Information (Scotland) Act reveal that this triggered a severe staffing crisis that could have put safety at risk.

Alongside fears about safety, there is the long-running saga of what to do with Britain’s 470,000 cubic metres of nuclear waste. Not to mention the 18 million cubic metres of soil and concrete thought to be have been contaminated with low-level radioactivity from leaks and spills at nuclear sites.

The government’s latest attempt to solve this problem – asking a group of independent experts to come up with recommendations – is in trouble. One scientist, Keith Baverstock, has been kicked off the Committee on Radioactive Waste Management (CoRWM), while another has decided to withdraw. Both are thoroughly disillusioned by the process.

Baverstock, formerly a senior radiation adviser with the World Health Organisation in Europe, accused CoRWM of wasting time on “amateurish” attempts to draw up a list of options. “The public health aspects of the problem are being ignored and trivialised by people who do not sufficiently understand the issue,” he said.

Strangely, what critics regard as the most dangerous aspect of nuclear power is sometimes the least talked about. Joined at the hip to the military industry, nuclear power depends on technologies which can also be used to make fuel for atomic bombs. This essential ambiguity is at the root of some of the most destabilising confrontations in the world today.

Britain is enriching uranium at Capenhurst near Cheshire at the same time as urging Iran not to enrich uranium at Natanz. The British government extracts tonnes of plutonium at Sellafield in Cumbria as it tries to persuade North Korea not to do likewise at Yongbyon.

The global tensions that inevitably result from these attempts to control the spread of nuclear weapons disturb many. It doesn’t take a genius to understand how terribly high the stakes are.

Full Scottish Sunday Herald Article

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Friday, March 04, 2005

Alternate Energy China: Renewable Energy Law sets 10% Target

BBC News reports that China's government has passed a renewable energy law which is intended to increase production of energy from sustainable sources.

The law, which will come into force early next year, seeks to increase the usage of solar and wind power to 10% of China's total consumption by 2010. This would equate to around 60 gigawatts.

However, while the new law has been welcomed, it has been suggested that the targets are over ambitious.

Rising oil prices and concerns over environmental damage prompted the move.

At present China relies on coal for most of its power, mining 1.8bn tons in 2004.

By fixing prices for electricity from solar and wind generated power, the government hopes to create financial incentives for existing operators and attract investment to these new markets.

But while there has been rapid expansion in the sustainable energy sector, it currently provides only a fraction of China's needs.

Currently wind power in China only contributes 0.01% to the power grid. To increase that to 10% in five years is ambitious, but in my opinion it's a target well worth aiming for. If China takes the same relentless attitude to pushing down the costs of wind turbine manufacture as it does with consumer goods the benefits may be realised around the world.

Full BBC News Article

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Monday, February 28, 2005

Alternative Energy California: A Million Solar Power Homes?

Californian Governor Arnold Schwarzenegger has a new plan to make California a world leader in solar energy.

It drops a previous provision, that doomed his "million solar homes" plan last year, that required that half of all new homes eventually be solar powered following opposition from businesses and the construction industry.

California builds about 150,000 new homes a year. Experience shows about 10 percent of homeowners would choose solar if offered the option – about 15 times the roughly 1,000 solar homes currently built each year in the state, said Bernadette Del Chiaro, a solar advocate for the nonprofit Environment California.

"It's clearly the most ambitious solar initiative ever proposed in the United States," said David Hochschild, policy director for the nonprofit organization Vote Solar.

The incentive approach is modeled on Japan, the world leader in solar power, which has seen a 72 percent drop in solar costs as 70,000 homes have been outfitted for the alternative power over the last 10 years.

California already is the third-largest consumer of solar power equipment, behind Germany, but gets 40 percent more annual sunlight than Germany and 20 percent more than Japan.

The goal is to have 3,000 megawatts worth of solar power by 2018, which amounts to about 5 percent of the state's entire electricity usage at peak periods – generally hot summer afternoons when electricity is most in demand, most expensive, and when solar panels are most efficient.

That's the equivalent of 40 new, $30 million, 75-megawatt natural gas plants. One megawatt is enough to power about 750 homes.

"We will be building literally power plants' worth of solar on roofs across the state," said Del Chiaro.

The goal is to create a large, stable solar market that will lower the cost not only of components but also of installation to the point that incentives will no longer be necessary to make solar energy affordable.

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Monday, February 07, 2005

Wave Energy News: USA, UK and South Africa



There are multiple ways to tap the energy of the ocean, including its tides, thermal features, and salinity. But wave energy appears to be the most promising and closest to commercial production.

A new report from the Electric Power Research Institute (EPRI) suggests that generation of electricity from wave energy may be economically feasible in the near future. The study was carried out by EPRI in collaboration with the DOE's National Renewable Energy Laboratory (NREL) and energy agencies and utilities from six states.

Conceptual designs for 300,000 megawatt-hour (MWh) plants (nominally 120 MW plants operating at 40% capacity factor) were performed for five sites in the United States: Waimanalo Beach, Oahu, Hawaii; Old Orchard Beach, Cumberland County, Maine; WellFleet, Cape Cod, Massachusetts; Gardiner, Douglas County, Oregon; and Ocean Beach, San Francisco County, California.

The study determined that wave energy conversion may be economically feasible within the territorial waters of the United States as soon as investments are made to enable wave technology to reach a cumulative production volume of 10,000 - 20,000 MW.(For comparison land-based wind turbines currently generate 40,000 MW.)

"Wave energy will first become commercially competitive with land-based wind technology at a cumulative production volume of 10,000 or fewer MW in Hawaii and northern California, about 20,000 MW in Oregon and about 40, 000 MW in Massachusetts," said Roger Bedard, ocean energy project manager. This forecast was based on the output of a 90 MW Pelamis wave energy conversion plant design and application of technology learning curves that will enable cost savings.

The forecast results have convinced the project team of the rationale for investment in wave energy technology research and development, including demonstration projects to prove the feasibility of wave energy conversion technology in actual sea environments.

Bedard explained that there are several compelling arguments for investing in offshore wave energy technology. First, with proper siting, conversion of ocean wave energy to electricity is believed to be one of the most environmentally benign ways to generate electricity. Second, offshore wave energy offers a way to minimize the 'Not in my backyard' (NIMBY) issues that plague many energy infrastructure projects. Wave energy conversion devices have a very low profile and are located far enough away from the shore that they are generally not visible. Third, wave energy is more predictable than solar and wind energy.

A characteristic of wave energy that suggests that it may be one of the lowest cost renewable energy sources is its high power density. Solar and wind energy is concerntrated into ocean waves, making it easier and cheaper to harvest. Experts estimate that 0.2% of the ocean's untapped energy could power the entire world.

Wave power was delivered to the electrical grid for first time in August 2004. The electricity was generated by a full-scale preproduction Pelamis prototype in Orkney, Scotland by Ocean Power Delivery Corporation.

The new EPRI study indicates that a site off the central Oregon coast is probably the best place in the country to establish a United States Ocean Energy Research and Demonstration Center. Electrical engineers at Oregon State University (OSU) have already created three prototypes of devices that could harness wave energy: A permanent magnet linear generator, a permanent magnet rack and pinion gearbox, and a contactless direct drive generator buoy.

Meanwhile in a British company hopes to harness South Africa's wave energy and establish three wavepower farms. The South African government has set targets to introduce renewable energy over the next decade, but there are no commercial renewable energy power plants in the country.

And in more wave energy news, UK Energy Minister Mike O'Brien recently announced a $78 million support scheme for wave power. The new scheme will allocate up to GBP £42 million towards supporting a number of larger scale pre-commercial demonstration wave and tidal farms.

"One of the other extremely promising possibilities with wave energy is the ability to scale these systems either up or down in size, whatever you need to fit the electrical demand," OSU professor of electrical engineering - Annette von Jouanne said. "Small systems could even be used with individual boats at anchor to generate their own electricity."

The development of wave energy right now is probably 15-20 years behind wind power, which is just starting to achieve some optimal production technologies

EPRI Offshore Wave Energy Reports

Eskom Press Release on Wave Energy

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Friday, January 28, 2005

Wave Power: Energy Buoy to Lead to Wavefarm?



BBC News reports that a pioneering project to harness wave power off the coast of north Cornwall, England is being monitored by scientists around the world.

A state-of-the-art energy buoy is being launched 12 miles off St Ives by the Renewable Energy Agency for the South West (Regen SW) on Friday.

The $132,000 buoy will record wave activity and measure wave power.

Regen SW has been awarded $368,000 from the npower Juice fund, which supports renewable energy technologies.

The project is designed to speed up the installation of one the world's first wavefarms, which could be in place within three years off the north Cornwall coast.

The area is being investigated by the South West of England Regional Development Agency (SWRDA) as a possible site for the creation of a Wave Hub.

This would act as an offshore electrical "socket" connected to the national grid by an underwater cable.

The Wave Hub would be the UK's first large-scale wave energy project, allowing manufacturers to carry out tests before going ahead with the development of commercial projects.

The British government wants the UK to be producing 10% of its energy needs from renewable resources by 2010.

Full Text of BBC Article on Wave Power Buoy

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Thursday, January 27, 2005

Alternative Fuel Cars: Plug-In Hybrids and Electric Cars


fueling by plugging in

The Christian Science Monitor has an article on plug-in hybrids.

Not long after Dan Kroushl got his new 2004 Toyota Prius, he began to wonder about the mysterious button on the dash. It didn't seem to have any function. Didn't boost the turbo or engage an ejector seat. In online discussions with other Prius enthusiasts, Mr. Kroushl soon discovered the button did have a hidden function: It could turn the gasoline-electric hybrid into an all-electric car - for a mile or so on limited battery power.

This "stealth mode" button works fine in Japan and Europe where it's handy for drivers to roll politely about densely packed subdivisions in the early morning and late evening. But the button has been disconnected for North America's Priuses.

Now, scores of Prius owners in the United States are activating the button on their own - despite company warnings that altering the car will void its warranty.

Some drivers, including Kroushl, are going even further: adding battery capacity - and a plug. The hoped for result: a high-tech commuting car that plugs into a socket at night and gets amazing gas mileage the next day.

In effect, these backyard mechanics have turned the hybrid car's appeal on its head. Instead of emphasizing gasoline over electric power and the convenience of today's cars, they're aiming to create less polluting higher-mileage vehicles that emphasize electricity over gasoline - even if it's a bit less convenient.

"One guy I know plugs his Honda hybrid into a windmill for power," Kroushl says. "It costs him practically nothing to drive."

Since before the Model T, electric cars have been among the most efficient modes of transportation. They made a bit of a comeback in the mid-1990s, when General Motors and other automakers reintroduced electric-only cars to meet a proposed California clean-air mandate. But with the weakening of that requirement, which called for some vehicles to be zero-emission in 2003, GM, Toyota, and Honda stopped production of their electric vehicles. Some automakers, which had leased the cars, began taking them back to be destroyed.


the discontinued Ford Think

Only the dedication of enthusiasts has kept them from disappearing completely. This past summer, after Ford Motor Co. announced it would send its electric Think vehicles to the crusher rather than sell them to buyers in Norway for a million dollars, environmental groups occupied the roof of the company's Norwegian offices and held a mock funeral at a San Francisco dealer. Within two weeks, following a protest by Greenpeace, Ford agreed instead to ship its vehicles to a Norwegian electric-car manufacturer.

Just last week, Ford also reluctantly agreed to let Dave Bernikoff-Raboy, a California rancher, buy the all-electric pickup truck he had been leasing. He was so devoted to the vehicle, which recharged off a solar panel, that he camped out near a Ford dealership in Sacramento, California, to protest that automaker's plans to dispose of its remaining electric fleet.


Neocon Green James Woolsey

The article contains some quotes from who some are calling the Neocon Greens:

"We're not talking about electric vehicles, but about plug-in hybrid vehicles that can be topped off with electricity for short trips," James Woolsey, former director of the Central Intelligence Agency, said last month during the unveiling of a report by the 16-member National Commission on Energy Policy. "The potential in terms of national policy, and in terms of global warming, ought to be focused on by anyone" concerned about terrorism or "paying over $2 a gallon."

"We think the transportation fuel sector should be diversified by utilizing more electricity as a fuel - plug-in hybrids that can get 100 miles per gallon and allow you to run on electricity alone for 20 to 30 miles, then shift to the combustion engine," says Gal Luft, director of the Institute for the Analysis of Global Security, an energy-security think tank in Washington.

Automakers however show little interest:

"Why would anyone want to do that?" wonders Sam Butto, a Toyota spokesman in Torrance, California, when told some Prius owners are creating their own plug-in Priuses. "One of the great features of the Prius is that you don't have to plug it in."

In my opinion they are failing to distinguish between having to plug it in and enabling consumers to plug-in their hybrids if they want to.

According to David Hermance, a Toyota environmental engineer there are a number of challenges in making a plug-in Prius including a "much, much, much larger battery" needed to increase range, which would add hundreds of pounds.

However as cellular phones have shown battery technology is improving all the time and the problems in mass producing plug-in hybrids may be insignificant when compared to producing hydrogen powered cars and the associated infrastructure.

And that's where plug-in hybrids have a major advantage. They can use the existing electrical infrastructure and be charged over night. Utility owned coal and gas generators cannot easily be shut down and therefore are run continuously even during the night when there is significant excess capacity. Therefore up to a certain level oil consumption could be decreased without any increase in electrical generation capacity. While in most countries the majority of electricity comes from polluting non-renewable sources this can be changed over time as more clean renewable power is added.

For those concerned about energy security it is definitely a step in the right direction. Less than 2% of U.S. electricity is generated from oil, so using electricity as a transportation fuel would greatly reduce dependence on imported petroleum. The Electric Power Research Institute projects that a midsize sedan PHEV with a sixty mile electric range would use fives times less gasoline a year than a regular vehicle of the same size.

The vast majority of journies in the United States are under forty miles and in European countries such as the United Kingdom the average journey is eight miles. Batteries have all ready been developed which can allow these trips to be completed solely on electric power.

According to Professor Frank from the University of California at Davis compared with conventional cars, the annual gasoline fuel consumption of the modified cars "is only about 10 percent, because you're using gas so infrequently," he says. "Our studies show [that] the average person would only go to the gas station six times a year compared with maybe 35 times a year."

The article continues:

Built on a stock Explorer platform, the hybrid retains all its original interior space. There is also more space in the engine compartment because the vehicle lacks moving parts like a fan belt, generator, water pump, and even a transmission. Because it has fewer than one-fifth the number of moving parts of a conventional SUV, the hybrid's weight, even with a heavier battery, stays the same. Assembly is simpler and reliability, better. In production, it might cost $40,000 or less, he says.


Ford Explorer Hybrid converted to be a Plug In Hybrid

Despite repeated presentations to the Big Three automakers in Detroit, Frank has received little interest from them. But last year, Toyota flew his Explorer to its research facilities in Japan so engineers could pore over the vehicle. "There's no question in my mind that Toyota has plans for a plug-in hybrid right now, but they aren't talking about it," he says.

Certainly, plug-in hybrids are for real. DaimlerChrysler is reportedly near delivery of the first batch of what is expected to be as many as 100 Sprinter delivery vans that permit travel of up to 20 miles on electricity alone. This will come in handy in car-clogged European cities currently considering bans or other limits on gas- and diesel-powered delivery vehicles.

AC Propulsion had demonstrated a converted VW Jetta with a plug-in hybrid electric vehicle (PHEV) system. Renault is offering its Kangoo PHEV that can go 60 miles on a charge before switching back to gas. Commuter Cars Corp. of Spokane, Wash., is offering a low-volume electric car called the Tango for $85,000.


Renault Kangoo + Scenic Lighthouse

Meanwhile, a not-for-profit outfit called CalCars in San Francisco is modifying two Priuses by adding more battery power and a plug. The group has discovered an empty space under the hatch near the current battery that looks almost as if Toyota intended to do this itself one day. "We hope to get significantly more miles per gallon with the additional battery power," says Felix Kramer, the group's founder. "Our purpose is to show Toyota that there is demand for this kind of vehicle."

Will Toyota - or Detroit - respond? Not without major breakthroughs in technology, says Dan Bedore, a Ford spokesman. "It's become pretty clear that our ... non-plug-in hybrid system is the direction we see the market going."

"The answer is they really don't want to do it," Frank says. "We're just a bunch of students. If we can build this with off-the-shelf technology, they can too - and do things better than what we do. If they really were interested in doing something in the short term, they could do it."

I would agree with this sentiment. The profits for major automakers like Ford are in building high-profit SUVs which are exempt from environmental and safety standards rather than building smaller efficient plug-in hybrids and electric vehicles (EVs).

The hype around the hydrogen economy allows many automakers to spend a few million on prototypes and avoid doing anything now to change the fuel economy of their best selling vehicles. Rather than waiting decades and spending hundreds of billions on a hydrogen infrastructure that may never materialise or mere billions of dollars in subsidies for corn based ethanol fuel which can never replace gasoline, we can instead use plug-in hybrids as a simple and cost effective way to reduce dependence on oil and reduce pollution using the existing electrical infrastrucutre to which we can continue to add clean renewable energy sources such as wind power.

To encourage this, I urge you to sign this online plug in hybrid campaign asking automakers to produce plug-in hybrid electric vehicles (PHEVs).

Hybrid Consortium

Full Christian Science Article on Plug-In Hybrids

Mercedes-Benz prototype PHEV Sprinter Van with benefits and projections of PHEV use (pdf)

Ergosphere Blog with detailed technical analysis of the use of plug in hybrid cars

Ergosphere on Advances in Battery Technology

Geoff Styles on some of the challenges facing advocates of a Hydrogen economy

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Saturday, January 15, 2005

Alternative Energy Cuba: Four Wind Turbines for Guantanamo Bay



Four new wind turbines are being installed at the U.S. Navy base in Guantanamo Bay, Cuba and are projected to save $1.5 million in annual oil imports. The Los Angeles Times also listed an additional benefit as being "showing energy-starved communist neighbours what they are missing".

Base public works officer, Cmdr. Jeffrey Johnston and the base commander, Capt. Leslie J. McCoy, noted that Cuban military officials with whom they met periodically had been keenly interested in the wind project, which is now the most visible feature of the base from any direction.

"The Cubans are very intrigued by the wind generators, but I see no potential for sharing the technology at this time," McCoy said, alluding to the absence of diplomatic relations with Havana and a trade embargo that had been in place since shortly after Castro came to power in 1959.

Cuba has suffered widespread and protracted electricity outages in recent years as the price of oil has driven up production costs. The country has invested little in developing alternative energy resources.

Los Angeles Times article on the addition of Windmills in Guantanamo Bay

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