Google, Apple, Facebook, Amazon, and Microsoft all have renewable energy efforts.
Found AWS has a summary in their sustainability page.
“Amazon Web Services (AWS) Wind and Solar Farms
AWS has a long-term commitment to achieve 100% renewable energy usage for our global infrastructure footprint. We’ve made a lot of progress on this commitment. AWS exceeded its goal of 40% renewable energy by the end of 2016, and set a new goal to be powered by 50% renewable energy by the end of 2017.
In 2015, AWS announced the construction of Amazon Solar Farm US East, Amazon Wind Farm Fowler Ridge, Amazon Wind Farm US Central and Amazon Wind Farm US East, located in Virginia, Indiana, Ohio and North Carolina respectively. Amazon Wind Farm Fowler Ridge became operational January 1, 2016, and Amazon Solar Farm US East went into operation in October, 2016.
In 2016, AWS announced the construction of Amazon Wind Farm US Central 2, a 189 MW wind farm in Hardin County, Ohio. We also announced five additional solar farms: Amazon Solar Farm US East 2, Amazon Solar Farm US East 3, Amazon Solar Farm US East 4, Amazon Solar Farm US East 5 each have a capacity of 20 MW and are located in New Kent, Buckingham, Sussex, and Powhatan counties in Virginia. Amazon Solar Farm US East 6 is a 100 MW facility in Southampton County, Virginia.
These ten renewable energy projects will deliver a total of 2.6 million MWh of energy annually onto the electric grid powering AWS data centers located in the AWS US East (Ohio) and AWS US East (N. Virginia) Regions. The electricity produced from these projects is enough to power the equivalent of over 240,000 U.S. homes annually, which is approximately the size of the city of Portland, Oregon.”