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Hot Rocks: Canada Sits Atop Massive Geothermal Resource

A report published by the Geological Survey of Canada last week outlines the huge geothermal energy potential available in the world's second largest country by area. Canada currently has no geothermal electricity generation, but the report says that 100 or so individual geothermal projects could provide a substantial part of the country's baseload power needs.

"Canada's in-place geothermal power exceeds one million times Canada's current electrical consumption," the report notes, though also stating most of that available power could not actually be produced. "Environmental impacts of geothermal development are relatively minor compared to other energy developments, however there are still key issues to be addressed....Geothermal installations have the potential to displace other more costly and environmentally damaging technologies."

There is at least 5000 megawatts of available geothermal power in various parts of British Columbia, Alberta, and the Yukon. What's more, the report's authors write, the cost of delivering geothermal power is expected to rival the costs of coal within 15 years or so. The limitations of developing the huge geothermal resource have a lot to do with location: Some of the most promising areas are far away from load centers, and the costs of developing huge transmission corridors to bring the power to where it is needed would make such projects unfeasible. Still, there is enough located in accessible areas to make a big difference.

Geothermal power in the United States is further along than in Canada, though there remain ample untapped resources in a number of areas. Last year, researchers reported that West Virginia houses an amazing geothermal capacity of more than 18 000 MW. There are close to 200 geothermal projects underway around the country, expected to provide 7000 MW of electricity by the time they're finished.

And then, of course, there's Iceland. The small country takes full advantage of its unique geologic situation, generating almost all of its electricity from a combination of hydropower and geothermal. Canada may not approach such lofty renewable heights, but it's good to know that the resource is available. We'll see if momentum builds on actually developing it.

(Image via Geological Survey of Canada)

Georgia State Climatologist Cashiered

Ten days ago Georgia governor Nathan Deal abruptly dismissed the state climatologist and assistant climatologist, announcing the climate office would be moved from the University of Georgia, Athens, to the state's Environmental Protection Division in Atlanta. Complaints followed that at least for a time the state would be without climate assessments and forecasts of considerable value to its US $65 billion agricultural sector. A small local movement emerged to reinstate David Stooksbury (photo) and Pam Knox. Now the federal government has decertified the Georgia state climate office on grounds the new operation may not be competent to fulfill its mission.

The decision to move the office has been made in terms of administrative efficiency, and Governor Deal has denied political motivation. Deal, however, is known to count himself among climate science skeptics. In 2009, as a member of the United States House of Representatives, Deal signed onto a petition challenging the U.S. Environmental Protection Agency's authority to regulate carbon, despite a Supreme Court ruling that said it could and probably should do so.

Defenders of the Athens climatology office naturally take a dim view of the governor's motivation. One, a close associate of the cashiered climatologists, characterized the sequence of events like this in a personal communication to a fellow scientist:

"(1) Summer 2011 was hot and dry in Georgia. (2) The GA State Ciimatology Office reported that it was hot and dry. (3) Certain drought-sensitive business interests resented that... (4) The governor heard those business interests..."

Last June, Georgia State Climatologist Stooksbury (correctly) predicted the summer would be unusually hot, which will not "give you much comfort," the Atlanta Journal-Constitution warned its readers. Evidently it did not much comfort at least one reader, who happened to be the one who mattered most.

Under the circumstances perhaps we should take comfort from small things. Texas governor Rick Perry, out on the presidential campaign trail, has been casting aspersions on climate science while Texas burns. But he has not actually denied that the world is getting warmer, and Texas along with it. He only casts doubt on the case for human causation.

Dark Horse Diesel

Though about half the automobiles in Europe are diesels, the technology has never had much traction in the United States, partly because much stricter U.S. clean air regulations made it virtually untenable. But several years ago Daimler and Volkswagen introduced cars powered by clean diesel technology capable of meeting U.S. requirements. (Such cars include a diesel version of VW's Jetta, [seen above], its Golf, and the Mercedes ML 350, GL350 and R 350; a useful online primer on Daimler-Benz's BlueTEC diesel technology is available on the auto company's site. ) Initially the new cars didn't seem to be making much headway. Sales numbers in recent months, however, are beginning to turn heads.

During the first eight months of this year, clean diesel sales in the United States increased by almost four times as much as overall car sales--37 percent versus 10.4 percent. In each of the five months from April through August, the growth in clean diesel  sales far exceeded growth in sales of hybrid electric cars.

A number of factors, to be sure, have distorted the hybrids market: the Japanese tsunami and earthquake, which disrupted production; a unusually strong Japanese exchange rate, which has made it advantageous to sell hybrids in the domestic market rather than export them; and so on. As a result of such conditions, just 9500 Toyota Prius vehicles were sold in the United States in August, compared to 18,600 in March.

Still, the numbers and the trends are arresting. 8,808 clean diesel units were sold in the United States in August, compared to 21,177 hybrids and 1,664 plug-ins (both plug-in hybrids and EVs). Compared to August 2010, hybrid sales were down 12 percent and clean diesel sales were up 20 percent. According to the Clean Diesel Forum,  analysts Baum and Associates predict that clean diesel cars will account for 6-6.5 percent of the U.S. market in 2015, compared to about 3 percent now. JD Power  & Associates expects diesels to be 7.4 percent of the market in 2017.

This may be a rare case where industry analysts turn out to have been too conservative and pessimistic. Couldn't clean diesels, having come around the outside track,  be dominating the U.S. market by 2025? Might not half of Americans be driving diesels, just like in Europe? Could the hybrid turn out to have been just a fascinating passing phase and the EV a slightly silly idea? We're not saying all that's going to happen, but we're not saying it's out of the question either. (Let's not forget that barely more than ten years ago fuel-cell-powered vehicles were all the rage.)

In turns of image, admittedly, clean diesel still has a way to go. Mercedes-Benz has Hollywood actress Emmy Rossum--that's Emmy who?--plugging BlueTEC. Tesla Motors has George Clooney. But hey, unfortunately it turns out you have to be just about as rich as Clooney to drive a Tesla. You--I'm sorry, who did you say you were?--might actually be in a position to drive a Mercedes ML350.

A Tale of Two Pipelines

Concurrently in the last weeks, world attention has focused on two immensely controversial pipeline projects: the North Stream natural gas pipeline, connecting western European consumers with suppliers in Russia and central Asia; and Keystone XL, which would take petroleum from Canadian oil sands in Alberta and transport it to refineries in Louisiana and Texas. The two projects both raise basic geopolitical issues—but issues representing quite different types of geopolitics.

North Stream is controversial because it carries gas from Russia under the Baltic directly to Germany, bypassing Poland and Ukraine. This means Russia could curtail gas shipments to Ukraine, which it has done several times to exact financial and political concessions, or to former Soviet satellite countries, without affecting supplies to West Europe. Arguably, North Stream positions Russia to bully Poland, the country that suffered the most at the hands of the Nazis in World War II.

Contemporary Germany's political culture is in many ways exemplary. But it does not speak well of the culture that former chancellor Gerhard Schroeder has served as chairman of North Stream, fronting for the project and acting in effect as an employee of Russian President Vladimir Putin. In some countries such an intrinsically conflicted arrangement would not be tolerated. 

Keystone XL is controversial for a very different set of reasons. Together with two earlier pipelines that were approved in 2008 and 2009, it would bring close to 3 million barrels per day of heavy crude oil to the United States from Canada. As Canada is a completely reliable supplier, unlike some OPEC countries or Russia, the new pipeline would contribute materially to U.S. energy security. 

The objections to Keystone XL are not politico-military, as with North Stream, but environmental. The pipeline would lead to more oil sands extraction, an energy-intense and carbon-intense process that also devastates the local environment; and delivery of the heavy oil to U.S. refiners will enable continued reliance on fossil fuels, a reliance that environmentalists say is incompatible with the U.S. pledge to cut its greenhouse gas emissions 80 percent by 2050.

For those reasons, environmentalists' opposition to Keystone XL has been fierce, unanimous, and pointed. At this writing, hundreds of demonstrators have been arrested at the White House. Twenty scientists, among them several of the most eminent U.S. climate scientists, have written to President Obama saying the Keystone project is incompatible with climate goals. All the top U.S. environmental organizations have joined in a letter asking the president to kill Keystone—and warning him of political consequences if he does not.

The groups described the pipeline as “perhaps the biggest climate test you face between now and the election,” and said that  "If you block it, you will trigger a surge of enthusiasm from the green base that supported you so strongly in the last election," clearly implying that if he does not block it, that enthusiasm will be absent.

It's a major quandary for the president. The U.S. State Department, which was responsible in this case for preparing an environmental impact statement (because a cross-boundary project is involved), has issued an EIS saying that Keystone XL is in the national interest. But environmental leaders have drawn a line in the (oil) sand: As they see it (and I'm frankly in agreement with them here), the national interest in reducing greenhouse gas emissions and cutting the risk of catastrophic climate change must take precedence over near-term energy security. If the president takes the opposite view, they are warning, he should not expect to see environmentalists among those ringing doorbells, stuffing envelopes, and manning phone banks next year.

Emissions Scorecard

Having recently observed that energy policy is in an impasse, and having focused mainly on issues of energy independence and dependencies, let's take a closer look at energy's climate corollary.

The first thing to take stock of is the Kyoto Protocol, the 1997 addendum to the 1992 United Nations Convention on Climate Change (UNFCCC), with which the world dedicated itself to the task of preventing "dangerous" global warming (without being too specific about what that meant). Generally, Kyoto obligated the industrial and then-industrializing societies--basically the advanced OECD economies and the transitional economies of the former Soviet Union and eastern Europe--to cut their emissions by varying amounts by 2012 (around 7-8 percent in the case of Europe and the United States).

The Kyoto Protocol took force on February 16, 2005 and now has 192 countries as parties, all but one of which has ratified the agreement. That one holdout is the United States. So from a strictly legal perspective, Kyoto joins other international agreements--such as those banning land mines, protecting children and migrant workers, and establishing the international criminal court, among others--that the USA has chosen not to affirm. (But that's another story.)

Absence of the United States from the UNFCCC implementing protocol is important but not all-important, as noted here and in Spectrum magazine many times. There is no one-to-one relationship between protocol status and actual reduction of greenhouse gas emissions. But that's not to say there's no relationship whatsoever. Nations that have been the most seriously concerned about climate change and that have expressed the strongest support for the Kyoto regime also have been most successful in meeting or even exceeding the Kyoto terms.

First and foremost come the United Kingdom and Germany, which lead the major advanced industrial countries in cutting emissions. Counting changes in land use patterns (which have impacts on both the uptake and release of carbon dioxide and methane), Britain's GHG emissions were 27.7 percent lower in 2009 than in 1990, and Germany's were 23.1 percent lower. Each country has cut its emissions roughly three times more than Kyoto required.

U.S. GHG emissions in 2009, on the other hand, were 10.6 percent higher than in 1990. Japan's were 5 percent lower but Canada--which often sounds as high-minded as Sweden in global discourse--saw its GHG emissions reach a level almost 30 percent higher than in 1990!

Collectively, the so-called Annex 1 countries (OECD and former East Bloc) cut their emissions about 10 percent from 1990 to 2008, while U.S. emissions went up about 15 percent in that period. But some of the fine detail is of further interest. In the period from 2000 to 2005--when the Bush administration was making a point of not taking the climate problem seriously--the United States did a better job of cutting emissions than Germany and Britain did. What is more, in the period from 2000 to 2009, in which U.S. policy has consistently fallen short of what Kyoto parties have sought, the United States cut its emissions by about 14 percent, whereas Europe cut its just 11 percent . (That's true whether we're talking about the 15 European Union countries that initially signed the protocol or the 27 EU countries of today.)

With the United Kingdom experiencing severe social and economic problems, Germany dead-set on phasing out nuclear energy, and Japan likely to follow suit, all three nations will be only too happy to see global legal requirements relaxed. Germany's and Japan's emissions are sure to rise in the near term, as fossil energy replaces atomic; and if Britain has to back off from expensive energy commitments, its emissions may rise as well. Meanwhile, perhaps, the United States will pick up some of the slack, and some of the real deadbeats like Canada will get on board.

Solar Eclipse

Anybody reading headlines in the business press will have noticed that in photovoltaics, there's a whole lot of shaking out going on. Three significant U.S. manufacturers have gone under in the last month: Solyndra, Evergreen Solar, and SpectraWatt. Solyndra, a major beneficiary of U.S. government support, suffered the added indignity of having its offices raided by the FBI shortly after it announced bankruptcy. 

The difficulties facing solar companies are not hard to identify. Heavily subsidized, low-cost Chinese producers have penetrated global markets in a big way, driving prices for basic polysilicon modules sharply down. That translates into problems not only for North American and European makers of basic polysilicon cells, but also competing technologies.

Solyndra, which was developing a novel tube technology, just couldn't get it to market at low enough prices to compete. The U.S. and German developers of what's to be a really major concentrating solar power project in Blythe, California, have announced that the first half gigawatt of installed solar will be generic polysilicon rather than high-end concentrating PV cells. First Solar, which has boasted a breakthrough thin-film technology, has seen its share prices drop more than 60 percent in the last three years and now is getting into project development and engineering, procurement and construction.

Vertically integrated companies like California's SPI Solar and China's Yingli Solar are doing well--but often under conditions that send eyebrows jumping.

SPI, working with KDC Solar and LDK Solar, announced in August that it would build a 9.7 MW photovoltaic generator for the New Jersey subsidiary of a major pharmaceutical company; Yingli said it would supply 10 MW of PV generation for a New Jersey installation that will be "the largest non-utility owned solar intallation east of the MIssissippi River."

Solar projects in New Jersey, as it happens, boast the highest rates of return of any such projects in the world. Analysts at Lux Research found that because of New Jersey's hugely generous Renewable Energy Credit prices, solar rates of return are 40 percent and above in the so-called Garden State. Next comes Portugal, followed by Australia, Italy, and India. In Germany, with China and the United States a major solar producer, rates of return will be in the vicinity of 22 percent out to 2016, Lux predicts.

In light of the unsustainable subsidies benefiting solar energy, instabilities in the industry, and the steep learning curve it has to climb, projections of profitability are to be taken with big grains of salt. (I beg the reader's pardon: In a situation so riddled with what economists call "market distortions," resort to business journalism cliches is unavoidable.) Only in the last couple of years, as solar construction has boomed, have people begun to notice things you might have thought would be obvious.

Two years ago, Google issued a report on solar module performance, based on operation from 2007 of a California PV installation that at that time was the largest single one in the world. Among the findings: large solar arrays tend to get dirty and sometimes need to be cleaned; specifically, tilted arrays get washed pretty well by rains, but horizontal arrays do not; in the arrays that need washing, cleaning can double their electrical output.

With the industry still digesting rudimentary lessons like that, obviously there is a great deal more to be worked through. Meanwhile, in countries like Germany, Spain and the United States, the domestic solar industries that were meant to benefit from government subsidies will continue to see Chinese competitors eat their lunch--at least until their remarkably slow-witted political leaders do something about it. 

Notorious Grid Bottleneck Spawns Western Blackout

The blackout that squelched power flows to nearly 5 million residents of Arizona, California and northern Mexico last night and shut down California’s San Onofre nuclear power plant may be the latest sign of strain in an outdated U.S. power grid. The incident began during maintenance at a substation in Yuma, Arizona that lies at the center of a sclerotic section of the grid between Phoenix and Tucson—one long recognized as critically congested and thus at heightened risk of failure.

Utility officials have not yet identified an explanation for how the substation work took down such a large grid area, since transmission systems are supposed to have sufficient redundancy to survive the loss of any given line or generator. However, such incidents are not without precedent. In 2008 an engineer with Florida Power & Light blacked out 4.5 million customers in south Florida during work on a substation switch in Miami.

What is clear, however, is that the substation where trouble began last night lies at the center of last night’s disruption is located in a sensitive spot. The North Gila Substation operated by Phoenix-based utility Arizona Public Service (APS) is on the eastern edge of a zone extending to the Pacific Coast that the U.S. Department of Energy (DOE) judges to be the second-most congested transmission flow path west of the Rockies. The corridor runs from south-central Arizona to San Diego, and at its heart is a single-circuit 500-kilovolt high voltage transmission line that brings coal-fired power from southeastern Arizona to San Diego.

That single line to San Diego leaves the city highly vulnerable, since California’s environmental policies have shuttered many of southern California’s baseload generating plants. “They rely on imports, and if those imports go offline they have nothing to rely on,” says John Kyei, a former APS transmission planning engineer who is now director of Transmission for Houston-based renewable power developer BP Wind Energy.

In 2008 DOE designated the Arizona-California transmission path as a National Interest Electric Transmission Corridor – a move intended to inspire transmission upgrades to crack open the Arizona bottleneck and secure delivery of the state’s power to the coast. A National Grid Congestion study issued by DOE the next year expressed optimism that new and upgraded lines were on the way, and removed the Phoenix-Tucson area (including Yuma) as a Congestion Area of Concern. But some key projects have since lagged.

DOE expected that one critical connector highlighted by Kyei, a 500-kV link from the Palo Verde nuclear power plant to APS’s now infamous North Gila substation, would be in service by next summer. APS now says via its web site that the line won’t be done before 2014. Kyei calls such delay’s business as usual, thanks to the phalanx of roadblocks – from environmental approvals to funding refusals by state-level public utility commissions with parochial interest – that regularly stretch new line planning in the U.S. to a decade or longer.

Kyei says adding a second circuit to the 500-kV line segment that crosses the California-Arizona frontier will be tougher still, because eliminating congestion equalizes prices on either side. California regulators approved a proposal by utility Southern California Edison to expand the line in 2007, only to see it rejected by the Arizona Corporation Commission.

If that stalemate continues, this may not be the last time that visitors to San Diego’s Sea World amusement park find themselves stuck on a roller-coaster, or that pump failures at treat plants spill sewage into water supplies. There is, however, a chance that federal authorities will step in to force transmission improvements. The Energy Policy Act of 2005 empowers the Federal Energy Regulatory Commission (FERC) in Washington to override opposition from states and push through transmission upgrades within designated National Interest Electric Transmission Corridors.

DOE is currently considering a proposal to also delegate to FERC its power to designate national interest corridors, thus streamlining the process for federal involvement. To date use of the federal power has been blocked by state challenges to the DOE’s designation process – a situation that FERC staff would like to change, according to a policy paper posted last week. As they write: “Clearly, the backstop transmission procedure established by Congress has not yet been effective."

What Might Obama Retreat on Air Regulation Portend?

President Obama's quiet decision last week to delay tightening of anti-smog regulations has alarmed environmentalists and his more liberal constituents, perhaps more because of its political tone than its substantive content. In giving job creation precedence over environmental standards—thus conceding something that doesn't need to be conceded, namely that environmental progress can only be made at the cost of economic growth--is the president setting the stage for a retreat on carbon regulation?

Several years ago a Supreme Court decision found that the Environmental Protection Agency could and probably should regulate greenhouse gas emissions under the Clean  Air Act and its amendments. The Obama EPA has been getting set to issue such regulations toward the end of this year. Furthermore, EPA's authority to act has been the president's trump card in struggling with Congress over climate legislation. If Congress failed to enact a cap-and-trade bill or a carbon tax, in effect the White House could simply issue decrees to cut emissions.

Might the president now give away that trump card? If tighter smog regulation is bad for jobs doesn't it follow that tighter carbon regulation also would be bad for jobs? John Walke, an air quality expert at the Natural Resources Defense Council, takes comfort in the complete unpredictability of Washington politics: "One thing I've learned never to do after spending nearly 20 years in Washington is to confuse logic and politics," says Walke. "What distinguishes carbon from ozone is the central reason cited by the president in his ozone decision," namely, a pending 2013 review of the ozone standard" last set during George W. Bush's administration.  That is to say, an ozone standard already exists and the issue is how strict to make it, but a carbon standard has yet to be created.

The ozone standard, by the way, is not to be confused with the important cross-state pollution rule, which courts struck down during the Bush years and the Obama administration recently reformulated and re-issued. It, at least to date, is intact.

World Will Install 44 Gigawatts of Wind Power in 2011

The World Wind Energy Association released its mid-year report for 2011, and showed an increase in installations over the same period a year earlier. A total of 18,405 megawatts of wind power were installed in the first half of this year around the world, up from 16,000 MW in 2010.

Unsurprisingly, China accounted for a huge chunk of the 2011 installations, with 8,000 MW of new wind power. The U.S. followed far behind, at 2,252 MW; that represents a big increase over a lackluster 2010 for the U.S., though, when 1,200 MW were added in the first six months of the year. Some other countries adding a lot of wind capacity through June 2011 were India (1,480 MW), Germany (766 MW), and Canada (603 MW). WWEA expects another 25,500 MW to be installed around the globe the rest of this year, bringing the total for 2011 to 43,900 MW. This represents almost a 17 percent increase over 2010's 37,642 MW.

The world's total wind energy capacity reached 215,000 MW at the end of June, and China accounted for an impressive 24.5 percent of that total, at 52,800 MW. The top five countries on the capacity list -- China, U.S., Germany, Spain, and India -- own almost three quarters of the world's capacity.

Notably, though, the global wind energy market is expanding. There are now 86 countries using wind energy (the latest three to join the party are Venezuela, Honduras, and Ethiopia), and those countries outside the top 10 in capacity now account for about 14 percent of the world's total.

Stefan Gsanger, the secretary general of WWEA, said in a press release: "We hope that especially the UN climate change conference in Durban will lead to better frameworks for wind energy mainly in developing countries. Amongst the industrialized countries, we expect that Japan will play an active and positive role in wind power in the foreseeable future and join soon the group of leading wind countries.” This, of course, being particular relevant in the wake of the Fukushima disaster and Japan's decision to rely less heavily on nuclear power.

(Image via WWEA)

D.O.E. Supporting Massive Increase in Thin-Film Solar Manufacturing

Thin-film solar modules, long touted as a revolution in renewable technology, are getting a big boost from the U.S. government. The Department of Energy recently announced a $197 million loan guarantee for SoloPower, a San Jose, California-based company that manufacturers CIGS (copper, indium, gallium, and (de)selenide) solar modules. SoloPower is constructing and expanding facilities in San Jose as well as Portland, Oregon.

Together, three facilities supported by the loan guarantee will produce about 400 megawatts of flexible CIGS modules each year. According to the SEIA solar trade balances report we covered here on Monday, only 197 MW in total of thin-film solar -- which includes CIGS, amorphous silicon, and cadmium telluride technologies -- were installed in the United States in all of 2010. Moreover, the entire solar industry only installed 956 MW of all types in 2010, so 400 additional MW will play a major role in total US installations.

Thin-film solar cells have the advantage of flexibility, and can be easier to install than traditional photovoltaics. There has been talk of flexible, thin-film technologies that are also almost entirely transparent, allowing for the creation of solar windows. CIGS designs are also improving rapidly, with one research group recently setting a conversion efficiency record of 18.7 percent, up from 14.1 percent in 2005.

The loan guarantee for SoloPower joins a list of 41 projects with guarantees totaling $41 billion, all for renewable energy.

Image via SoloPower.


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