Tech giant Google has bought 842MW of global renewable energy to power its data centres.

It claims it is “the largest and most diverse purchase of renewable energy ever made by a non-utility company”.

The firm aims to triple its purchases of renewable energy and use 100% clean energy by 2025.

It currently generates up to 2GW of green energy — the equivalent to taking nearly one million cars off the road.

Google states: “These additional 842MW represent a range of locations and technologies, from a wind farm in Sweden to a solar plant in Chile.

“These long term contracts range from 10-20 years and provide projects with the financial certainty and scale necessary to build these wind and solar facilities — thus bringing new renewable energy onto the grid in these regions.

“For our part, these contracts not only help minimise the environmental impact of our services — they also make good business sense by ensuring good prices.”