Bob Hemphill

AES, Riverstone in $1B solar venture

March 25, 2008 - by David Ehrlich - In their first move into photovoltaics, the companies plan to develop utility-scale solar projects around the world. Full Story »

AES makes $3M strategic investment in Altairnano

March 5, 2007 - by Dana Childs - Global power company buys 1.5% of advanced battery maker. Full Story »

Hydrogen cars non-starters

January 24, 2007 - by Dallas Kachan - Presenters at a cleantech conference predicted fuel-cell hybrids will ultimately lose to electric pluggables. Full Story »
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