Tag Archives: solar

Clean energy will unfortunately be political

Conservative thinktanks step up attacks against Obama’s clean energy strategy, as revealed by ALEC bills and other PR documents.  This morning at the World Renewable Energy Forum, in response to a (long winded) question about how we might re-frame the … Continue reading

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Google Street View for building energy efficiency

Essess is doing drive-by thermal imaging in high density urban areas across the US, hoping to target possible building energy efficiency opportunities.  Another company is using urban satellite imagery to choose the best rooftops for solar energy siting.  Big Brother … Continue reading

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Sustainable Energy Without the Hot Air

Sustainable Energy, without the Hot Air by David MacKay, is a book (available in its entirety online) looking at the sources of energy available, and the ways in which we use it today.  There are lots of options, but any … Continue reading

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Straight Talk on Climate Progress in California

Andy Revkin talks to Nate Lewis about the scale of the challenge we face in addressing climate change.  Lewis (whom I took Chem 1 from at Caltech) was one of the first people to communicate the scale of the problem … Continue reading

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A Power Company President Ties His Future to Green Energy

Yale Environment 360 has an interview with the CEO of NRG Energy, a fossil fuel based, nationwide independent power producer (IPP) that sells their 22GW of generation into the wholesale market.  He’s bullish on solar PV, much less so on … Continue reading

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Is an Energy Transformation Afoot?

Almost immediately after we empowered Boulder to form a utility, a spate of articles appeared in the national press talking about the relative costs of coal and renewables, and the trends in those costs.  There was Krugman’s Here Comes Solar … Continue reading

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Xcel backing away from solar-thermal enabling San Luis Valley transmission

Xcel appears to be backing away from new transmission lines to the San Luis Valley.  This infrastructure is required to implement the several hundred megawatts of solar-thermal generation that they proposed in their 2007 resource plan.  Solar thermal is the … Continue reading

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Boulder’s Energy Future Is Bright

Last night I went to a presentation by the Renewables Yes technical and financial modeling team.  They’ve put up a bunch of information about their modeling efforts on the web site.  I’ve organized nine short videos of a previous iteration … Continue reading

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Construction of a Canadian PassivHaus

A great slideshow with captions showing the construction of a PassivHaus in Ottawa.  Relatively high density, and relatively high end.  I’d love to build something along these lines… and live in it.

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Energy Efficiency and Economics at Walnut Mews

Our condo HOA had a meeting last fall, and somebody brought up selling the flat plate collectors on the roof that are part of our defunct solar thermal hot water system.  The 750 gallon cylindrical storage tank rusted out in … Continue reading

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