Bill Gates: It's 'Crazy' How Little Is Invested in Clean-Tech

The Wall Street Journal

Hundreds of start-ups are presenting advanced energy technologies at a Department of Energy conference this week. Their early-stage efforts are funded by a government grant program, called ARPA-e, but what happens next is a difficult question.

Will many of these useful and interesting U.S. technologies die on the vine because there won’t be capital to take them further. Will they be bought and developed abroad?