Most entries in the Department of Energy’s Solar Decathlon are inspiring, but Germany’s winning effort this year is truly amazing. Combining endless Cu(In,Ga)Se2 thin-film solar cells with flawless design and functionality. Hear their enthusiasm over here. While this house has the capacity to power itself and two others, the integration of moderate solar cell usage into new building regulations is something that can’t be ignored any longer.
Maybe next year kesterite solar cells will have a more prominent role?