Gas and electricity company ScottishPower Renewables has completed construction of an onshore 30 megawatt (MW) wind farm in Halsary in northern Scotland, the firm announced on its website on Tuesday.
Iberdrola-owned ScottishPower said the 15 turbine Halsary wind farm in Caithness was generating enough clean energy for the equivalent of almost 20,000 homes.
The project was formed in partnership with Tesco, Britain's biggest retailer, and was built specifically to support the green energy needs of the supermarket giant, ScottishPower said.
"Onshore wind is the cheapest form of generating electricity in the UK, so it's the ideal way for businesses to purchase clean energy and go green," said Lindsay McQuade, CEO of ScottishPower.
The project was developed as part of a Power Purchase Agreement (PPA), the firm said, making it the first ScottishPower wind farm to be built without a government support scheme.