Katie Fehrenbacher for GigaOM:

Apple is planning to build a massive 4.8 MW fuel cell farm for a data center that will consume 20 MW, according to Apple’s latest figures. Apple is also building an adjacent 20 MW solar panel farm at the data center. While Greenpeace has given Apple low marks for building its data center in North Carolina, where the grid has a lot of coal power, Apple actually seems to be going to significant lengths to build its own clean power sources at the site itself.