How to harvest solar power? Beam it down from space! This piece is a bit too breathless, but the prospect merits more attention than it gets.
Will algae be our energy savior? and Sapphire Energy turns algae into 'green crude' for fuel. There's hype in this area too, but again the possible benefits are very high.
Do we need an energy "Manhattan Project"? Dubious, says James Pethokoukis, reasonably suggesting that government take other measures, such as giving energy prizes, instead.