Here's a neat development: solar-collecting shingles! Instead of a big awkward solar panel marring the look of your suburban pad, you can get enough energy to make a significant dent in your electric bill (or run the meter the other way!), without any sacrifice of appearance. It's also light-weight, which means there are no limits to the age or structural characteristics of houses on which it can be installed.
(via a diary at dailyKos)
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