solar voltaic power

New poll finds public wants renewables over coal

And the bad news for coal / good news for humanity just keeps rolling in. According to a new poll (PDF): 75 percent of Americans — including 65 percent of Republicans, 83 percent of Democrats and 76 percent of Independents — would "support a five-year moratorium on new coal-fired power plants in the United States […]

In which I come to the defense of Shellenberger and Nordhaus — sort of, anyway

I was planning on sitting out the Nordhaus/Shellenberger debate. But then I thought: Adam, you are not the top-rated Gristmill blogger (see list at left) for nothing. People want to hear from you. So, here's my take:

The first place Nordhaus and Shellenberger go wrong is their predilection for publicity photos that resemble '80s album covers.

After that, they get it mostly right. Carbon legislation is good and helpful, sure, but it's about 30 percent thought-through, enormously complicated, and anything that has a hope of actually getting signed is unlikely in the extreme to be sufficient to the task.

Look at the list of companies that have signed up to the much-ballyhooed Climate Action Partnership. Do you think they are calling for "the federal government to quickly enact strong national legislation to require significant reductions of greenhouse gas emissions" because they think doing so will put them in any danger of having to fundamentally change the way they do business? Their "consensus principles and recommendations" have more wiggle room than Studio 54.

The Solar Power Conference revealed no breakthrough solar tech — and that’s a good thing

The following is a guest essay by Jim Raras, Jr., COO of Inpower Systems. —– Every year the biggest players in the solar industry convene at the Solar Power Conference in Long Beach, Calif., to discuss the latest advancements in solar technology. This year, one of the most notable facets of the meetings was what […]

It doesn’t make sense — and that’s the point

More than a few people were taken in by a guy peddling a coal/solar hybrid system at Solar Power 2007. "But, smokestacks on the roof -- that just doesn't make sense," said a government bureaucrat, who shall remain unnamed pending resolution of my grant proposal.

Indeed, it doesn't. As the less credulous might have predicted, it was a marketing spoof by Sharp Solar:

Increasingly popular solar power conference mirrors growth in the industry

The heart and soul of the world's solar industry is gathered this week in Long Beach for the annual SEPA/SEIA solar conference. Five years ago, this conference drew 200 people to a dingy hotel ballroom in Reno. This year, it's sold out the Long Beach Convention Center, and you can't get a hotel room for love or money within a 20-mile radius. It's like the Super Bowl is in town.

Solar has come a long way -- and there's a lot of things to thank for what's brought the industry to this point. Certainly, the world owes the German feed-in tariff a big danke for all it has done to scale up manufacturing. And in the U.S., the California Solar Initiative has been the big driver, with a bevy of new state programs vying for the crown. While everyone is encouraged by the progress First Solar has made delivering on thin-film's long-deferred promise, I'd argue that to date, financial innovation -- more specifically solar PPAs -- has been a bigger driver in expanding markets than technological innovation.

So, the question of the day is: what's the new development that will emerge as the biggest theme of this year's conference? At the risk of blogmiscuity, I'm guest-blogging on just that question over at RenewableEnergyAccess. Check it out.

On buying solar electricity, not panels

One of the biggest hurdles to going solar is the large up-front costs. That's why solar power purchase agreements (PPAs in wonk-speak) have been so popular. With this model, a third party designs, installs, and owns a system on your roof. You simply sign a long-term contract to buy the output on a kWh basis. You avoid the need for financing, and shift performance risk to the service provider -- you only buy what the system produces. Check out this article for more.

To date, solar PPAs have been offered exclusively for commercial-sized systems. That's because the developer has to take a 15-yr maintenance/service/billing interest in the property, and the economics are better for big systems.

Until now. Sun Run Generation is, as far as I can tell, the first company to legitimately offer a form of residential solar PPA*. They make a fairly convincing case that they can offer a PPA with net customer economics better than an outright purchase. The reason? As a business, they are not restricted by the $2K residential Fed investment tax credit cap, but can take the full 30 percent.

I predict that the next few significant developments in the solar field are going to be in the field of financial rather than technical innovation. Solar Power 2007, the largest solar conference in the U.S., is next week in Long Beach. If I see anything that contradicts my prediction, I'll let you know. (You should also consider going yourself. All the kids will be there, and there's a no-fee public night on Tuesday).

*Note: there have been other companies that claim to offer this service. The most notorious don't currently have ... what's the technical term ... any actual product. As with everything, buyer beware.

Solar thermal power deserves more attention, due to its lower cost and relative ease of storage

Solar thermal power is back! Solar thermal gets less attention than its sexier cousin -- high-tech photovoltaics -- but has two big advantages. First, it is much cheaper than PV. Second, it captures energy in a form that is much easier to store -- heat -- typically with mirrored surfaces that concentrate sunlight onto a receiver that heats a liquid (which is then used to make steam to drive a turbine).

Back in the 1980s, Luz International was the sole commercial developer of U.S. solar thermal electric projects. The company built nine solar plants, totaling 355 MW of capacity, in California's Mojave desert. Luz filed for bankruptcy in 1991 for a variety of reasons detailed in this Sandia report.

Is Burning Man living up to its Green Man intentions?

The headline refers to a sign that appears as you drive (or as I drove, in a huge white pickup truck) into the Playa at five miles an hour, and it's not a bad summary of the enviro discussion here at Burning Man. How can you really be green at an event you have to drive hundreds of miles to, mostly through desert, with all your heavy crap in the car? Where will all those plastic water bottles end up? Is there such thing as a petroleum-free camp? What about all those Zip Ties, the preferred technology for securing dome coverings and lights on your bike?

Is Burning Man this year anywhere close to carbon-free?

No, says Andie Grace, the woman who ably answers the media here. "We're doing everything we can to lessen the footprint, but we can't make it disappear. After all, to do that we'd all have to sit home, strip naked, and eat grubs."

Which is not to say there isn't good stuff going on here. Says BMan's enviro czar Tom Price, "We are at or slightly ahead of our expectations. We switched 90 percent from red diesel, which comes from places like Saudi Arabia, to biodiesel that comes from Minden, Nevada." (Problems with biodiesel clogging generator filters -- which is does, because it scours out previous petroleum deposits in those gennies -- have been resolved by changing filters.)

The Man, which is currently in the process of being rebuilt, is lighted with neon powered with a 30 kilowatt solar array, which also powers the entire man complex. It's also powering the power tools the powerful construction people are using to rebuild the Man (which burned unexpectedly early Tuesday morning during the lunar eclipse. It was epic and historic, and a good time was had by all).

When that solar array, donated by Renewable Ventures, MMA, comes down on Saturday before the burn, "we're going to build 120 kilowatts in the town of Gerlach," says Price, "and 60 kilowatts in the town of Lovelock. That's two million dollars in free renewable energy."

Plus, once you get here, you ride your bike everywhere. Or your scooter. Or something. But you don't drive your car for a week. As Burning Man founder Larry Harvey said, "that offsets something."

I will take this back after I've been home for a month, but right now, sitting here in my skimpy pink dress, using a solar-powered WiFi connection on my solar-powered laptop looking out that the spectacular Esplanade full of solar-powered art and just digging the ambient laughter and music of strangers, it seems like Burning Man really could change the ... okay, okay. I'll stop now.

Next post: How Albertson's grocery store became a beacon of environmental ethics after its execs visited the Playa last year.

Ball-kickers power stadiums with renewables

And you thought by “football” in my title I meant football? Pssh. I do love me some obscure European soccer news. So with no further ado: Scottish soccer team powers its stadium floodlights with wind power! Swiss soccer team has the world’s largest stadium-integrated photovoltaic system on the roof of the Stade de Suisse Wankdorf […]