In the second of a series examining California's "green revolution", the BBC News website's Sam Wilson reports from San Jose on how the state is at the forefront of innovation in clean technology.
The most striking thing about the Miasole solar cell production plant in San Jose is how much of it is empty.
Probably less than a fifth of the huge production floor is occupied by machines.
But if Miasole's plan comes together, within a couple of years it will house a production line turning out vast rolls of photovoltaic cells, that some believe could help put solar power on a par with coal, gas or oil.
"It's an enormous growth opportunity," says chief executive officer David Pearce, matter-of-factly.
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more:
http://news.bbc.co.uk/2/hi/science/nature/6283986.stmPrevious article:
http://news.bbc.co.uk/2/hi/americas/6268618.stmMost of this will not be news to frequent lurkers of Env/En, but it's a good update for those who think there's nothing being done in the US.