The report, "Renewable Electricity Use by the Us Information and Communication Technology Industry," found those companies collectively consumed more than 59 million megawatt hours (MWh) of electricity in 2014, which represents 1.5% of the nation’s power usage.

By 2020, they may procure from 18.5 million MWh to 37 million MWh of renewable electricity.

"ICT companies are increasingly making long-term commitments to renewable generation, such as through 20-year power purchase agreements," says NREL senior energy analyst Jenny Heeter.