Generating Electricity from the Sun

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The 140 acre array of photovoltaic panels at Nellis Air Force Base in Nevada generates 14 megawatts of power..

Almost all of our methods for generating electricity are fundamentally the same. Coal-, nuclear-, and natural-gas-fired power plants boil water to produce high-pressure steam that spins a dynamo in a "steam turbine." The wood-chip-fired combined-heat-and-power (CHP) plant that we want to build in Brattleboro works the same way.

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SketchUp 7 Released

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Last Friday a few of us gathered around a phone behind the closed doors of one of the conference rooms here at BuildingGreen and had a chat with John Bacus from Google's team of SketchUp developers, and Aaron Stein, one of their PR folks. The supersecret talk was about the next release of that program — SketchUp 7 — which within the last couple hours has gone public.
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USGBC, 15 Years Old, Looks Back

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In honor of itself (hmm... was really the best way for me to kick off this post?), the USGBC has done a kind of a cool thing. A letter released to its membership says,
... when we reflected on how best we could mark our anniversary as a community of leaders called the U.S.
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Video: Household carbon emissions are... creepy

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If M. Night Shyamalan did a movie on carbon emissions, it might look something like this. The Alliance for Climate Protection has a video that helps homeowners visualize their carbon emissions. After all, they're colorless, odorless, and come with a nifty time-delay of consequences that can lull a person into thinking that it's all going to be fine. Everything was fine... until someone left the coffeemaker, but who? The bed is made, but no one's home. Whom does the dryer tumble for? The ancestral photo in the hallway?

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Solar Water Heating

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Brattleboro, Vermont is fortunate to have a long history with solar water heating. When I moved to the area in 1980, the company Solar Applications had been installing solar hot water systems for five years, and a spin-off company, Solar Alternatives, was manufacturing quality flat-plate solar collectors--many of which are still in use in the area. While Solar Alternatives closed down in the 1980s with falling energy prices and the end of solar tax credits, Solar Applications, has continued to install and service solar water heating systems for more than thirty years.

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