BT has signed a new £185 million power agreement with a Scottish wind farm.

The telecoms operator has said 13 wind turbines at the Stroupster Wind Farm would provide the business with 100GWh of renewable energy annually for the next 15 years.

It said it has been purchasing 100% renewable energy in the UK since 2012.

Rob Williams, BT’s General Manager of Power Procurement, said: “By 2020 we aim to be purchasing 100% renewable electricity worldwide, so soon all of our power will come from sources such as sunlight, wind, rain, tides, waves and geothermal heat wherever we operate across the globe, where markets allow.”

The deal was welcomed by Scottish Renewables’ Director of Policy, Jenny Hogan.

She said: “The fact that we’re seeing more and more large companies like BT contracting most or all of their power from sources like wind, solar, hydro and biomass shows that renewable energy makes good business sense.”

BT now has agreements with four wind farms in the UK and claims it has reduced carbon emissions from its operations every year since 2008.

Global offshore wind capacity is set to triple in the period between 2015 and 2020.