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Venture Capital Down 50%. It’s Not Just the Recession, Folks.
Mitch Epstein for The New York Times Off the Grid: Bloom Energy’s fuel cells, a low-emission, ‘‘fuel flexible’’ power source — and one of Kleiner Perkins’s biggest green-tech bets. Ausra, a start-up in Palo Alto, Calif., uses mirrors to concentrate solar energy on water pipes to produce steam and, ultimately, electricity. The first installation, in 2011, should power more than 100,000 homes.

