Interesting news about about power storage: first, Li-ion (Lithium-ion) batteries like those used in laptop computers are on the verge of drastic improvement, like batteries that wear out after 10 years instead of the current 3, and charge to 90% in 5 minutes instead of taking hours. Could be a game-changer for making electric vehicles, etc., more practical.

Also, a more exotic sounding power storage technology — a weight spinning in a vacuum riding on magnetic levitation cushion (I’d probably call this a “flywheel,” but perhaps that isn’t accurate). Putting power in means it spins faster, taking power out means it spins slower. Apparently setting up a bank of these provides a commercially viable solution on an enterprise scale, for example I imagine it being used to store solar or wind power for release during peak demand or off-peak generation hours of the day….