PG&E just requested approval from the California Public Utilities Commission (PUC) to enter into a power purchase agreement with Solaren Corp.  Solaren would deploy a solar array into space to beam an anticipated 850 gigawatt hours for the first year and 1,700 gigawatt hours for the subsequent years.

An actual contract from an actual Power company.

Wow.

http://www.msnbc.msn.com/id/30198977/

Boerman said Solaren's plan called for four or five heavy-lift launches that would put the elements of the power-generating facility in orbit. Those elements would dock automatically in space to create the satellite system. Boerman declined to describe the elements in detail but noted that each heavy-lift launch could put 25 tons of payload into orbit.