Tesco has opened what it claims is the world’s first zero carbon supermarket in Ramsey, Cambridgeshire and has pledged to spend over £100m with UK green technology companies.

The store, which has been under development since 2005, was built with sustainable wood, LED lighting and a combined heat and power plant powered with renewable fuel.

Tesco chief executive Terry Leahy said: “The challenge of climate change can only be faced by collective action.  We want to cut our own carbon footprint and help suppliers and customers do the same.  We’ll be a zero carbon business by 2050 but only by working with our suppliers and others across the industry.”

He added: “I’m proud to be opening the worlds first zero carbon supermarket and I believe it’s no co-incidence that it has opened here in the UK where many of the innovations which make its construction and operation possible were designed and manufactured.”

Tesco claimed that its investment into green companies would boost the economy and safeguard or create thousands of jobs.