Speaking yesterday in London, Barker, a keen supporter of solar energy, acknowledged that the current government greatly underestimated the potential for PV in Britain when it took office in 2010.

Three years ago solar “hardly got a look-in” by officials, Barker admits. “It was seen as a hobby technology; hardly anyone took it seriously.”

Today, however, PV is taken seriously “right the way to the top” of government, Barker claims, and has “taken its place alongside the other low-carbon technologies that are going to keep our future energy supply secure and competitive”.

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