Speciality foods supplier Leathams expects to save £21,000 a year on electricity after installing 1,000 solar panels on the roof of its London HQ.

The panels will generate 210,000 kWh per annum - with 100% being used on the premises to power its refrigerated cold stores, even during peak times in the summer.

“Solar panel technology keeps improving and reducing our carbon footprint is an ongoing priority,” said a spokesman.