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SOLAR TODAY Blog

Daily dose of solar news and Q&As

Tag >> May 2008

Good news and bad news from our English-speaking cousins:

First the good news: Jim Prentice, Canada's environment minister, announced last week that his Conservative government will institute a cap-and-trade system for coal-fired power plants, effectively forbidding new coal-plant construction without carbon sequestration and leading to the phase-out of existing plants.

The bad news is that Australia has delayed its cap-and-trade system by a year, until 2011, reportedly in response to the looming recession. The move by Prime Minister Kevin Rudd's Labor government is seen as a blow to hopes that developed nations might present a unified front at the Copenhagen climate summit in December. To keep Green Party support, Rudd reportedly will offer a more ambitious carbon reduction target of 25% by 2020, up from 15%. Australia currently is the world's largest per-capita carbon emitter - and one of the most vulnerable nations in the world to climate-change drought.

Coal-fired electricity now constitutes about 18% of Canadian carbon emissions. If the government follows through on the cap-and-trade initiative, the next step should be regulation of oil-sands processing emissions.


Saturday’s San Francisco Chronicle ran a solid interview with venture capitalist Vinod Khosla, a co-founder of Sun Microsystems and now a partner at Kleiner, Perkins. Khosla is now heavily invested in concentrated solar power and biofuels.

Among other topics, Khosla discussed the current panic over corn-based ethanol. He said the role of ethanol in driving up food prices is “overblown.” In fact, he attributed much of the fuss to a misinformation campaign by threatened oil companies:


By Seth Masia
SOLAR TODAY

San Diego, May 8 – SOLAR 2008 finished today with a rousing call to build a grassroots renewable energy movement.

Bracken Hendricks, co-author of Apollo’s Fire and a senior fellow at the Center for American Progress, summarized the sense of the conference: that economically viable technologies exist right now to replace most fossil fuels, dramatically reduce greenhouse gas pollution and by doing so create valuable jobs in a variety of new industries.


By Seth Masia
SOLAR TODAY

San Diego, May 5 – Renewable energy is the way to save the nation and the planet from economic collapse and endless war, and Americans are prepared to understand that message.

That was the underlying theme of five speeches at this morning’s plenary session of SOLAR 2008.


By Seth Masia
SOLAR TODAY

On the first day of SOLAR 2008 in San Diego, the SOLAR TODAY staff motored a few laps on the ASES Photon, the University of Florida’s slick, fast Solar Trike. It’s a recumbent tricycle with a hub motor on the rear drive wheel, powered by a 48-volt, 10-amp hour lithium-iron phosphate battery. The 80 pound trike accelerates briskly to about 25 mph, and can cruise at 12 to 15 mph for about 20 miles, without pedaling. Pedal a bit to extend the range. The trick to maximize range is to pedal briskly when accelerating and relax in cruise.

trikeThe PV modules on top can be oriented to face the sun, and recharge the battery at about one amp. If you park it in the sun while at work, the battery will hold a full charge for the commute home.


By Seth Masia
SOLAR TODAY

For years, a debate has raged between climatologists who forecast global climate change based on greenhouse gas forcing, and global-warming deniers who say it’s just part of a natural cycle and we can expect things to cool off again someday.

Deniers often point to a phenomenon called the Atlantic Multidecadal Oscillation as a natural cycle causing climate heating and cooling. The AMO is a 70-year cycle in ocean-surface temperature first identified in 1994 by Michael Schlesinger and his team at the University of Illinois. Schlesinger doesn’t like the name, because the same cycle can be found in Pacific and Indian Ocean waters, too. The temperature oscillation can be traced back to the last ice age, and beyond. The cycle last “bottomed” 35 years ago, and it has just peaked.


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Featured Contributors

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Seth MasiaSeth Masia
Seth Masia is SOLAR TODAY's deputy editor and covers advances in solar energy on the blog.

Joseph McCabeJoseph McCabe Joseph McCabe is SOLAR TODAY's "Solar Prose" columnist and an ASES Fellow.

Liz MerryLiz Merry
Liz Merry is SOLAR TODAY's "Ask Ms. Liz: Career Q&As" columnist.


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