The best thermal curtains help reduce energy usage while adding style. We tested our top picks to see which provide the most insulation.

Estonia's Roofit.Solar has developed new building-integrated photovoltaic (BIPV) panels with an effective width of 470 mm, offering power outputs of 120 W or 180 W.

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Kim and Bobby “Zab” Zabbia built their home in 1974 on the site of what Kim Zabbia calls the “haunted house I ran past on my way to school as a kid.” Fifty years later, the house is a microcosm of the ...