From Maria Surma Manka at Sustainablog
Renewable energy generates clean power, and the fuel is often free: There’s no cost to make the wind blow or the sun shine. But just as many people advocate for considering the full cost of fossil fuels in the price of electricity (the cost of the pollution, mining, etc), so too must the full cost and impact of renewable energy be accounted for.
A new life-cycle assessment study from the Brookhaven National Laboratory in New York examined the four most common types of photovoltaic (PV) solar power cells — multicrystalline silicon, monocrystalline silicon, ribbon silicon and thin-film, if you were wondering — to find out how much energy and waste was involved in their creation.
(Read the whole post over at Sustainablog)