09 July 2009


I have long been a fervent advocate for the solar grand plan. One of its major flaws, however, is that it assumes technological advancement. This is a just criticism. But lo and behold, even without the level of investment the plan would have brought, the much lower current funding for research has yielded much, much cheaper solar cells that will soon be just as efficient (~20%) as the expensive current silicon ones. The copper-indium-diselinide cells don't need to be vacuum-processed and just just poured and baked (essentially). In a few months, their efficiency has improved from 1% to 9%, and the researchers are optimistic (reasonably so) that the cells will hit 20% within a few years.

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