Google made a big move this week to use more renewable energy when they signed a 20-year contract with an Iowa wind farm that will allow Google to purchase wind power at a set rate over the next two decades.

The energy from the NextEra Energy Resources wind farm will be sufficient to power “several data centers,” Google wrote on its blog.
In 2007, Google announced its intention to become carbon neutral by the end of the year.

The deal is the first for Google Energy, a subsidiary of the company that received federal approval to trade energy on the open market.