Existing storage technologies are insufficient to replace fossil fuels by multiple orders of magnitude. Here's a nice summary: http://www.theoildrum.com/node/

Existing storage technologies are insufficient to replace fossil fuels by multiple orders of magnitude. Here's a nice summary: http://www.theoildrum.com/node/8405 http://www.theoildrum.com/node/8405 The bottom line: storage will need some serious R&D to find a secret sauce using fuel cells or nanotech or something.