That's how much T. Boone Pickens is paying GE for 667 wind turbines, each costing $3 million, to sprout up in the Texas panhandle, according to this MetaEfficient post.

The $2 billion order is just one quarter of the total amount he plans to purchase. Once built, the wind farm would have the capacity to supply power to over 1,200,000 homes in North Texas. Each turbine will produce 1.5 megawatts of electricity. The first phase of the project will produce 1,000 megawatts, enough energy to power 300,000 homes. GE will begin delivering the turbines in 2010, and current plans call for the project to start producing power in 2011.

His company, Mesa Power, plans to complete the $10 billion project by 2014.