Oxford PV has built the most efficient solar panel ever made.
The Oxford University spinout credits the breakthrough to its perovskite-on-silicon tandem solar cells.
Solar panelsaccountedfor three-quarters of newly installed renewables capacity worldwide last year.

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It also has a pilot facility near Berlin, Germany the first step toward commercialisation on an industrial scale.
Capacity at its German facility will be in the region of 100MW.
That could bring the company revenues of28mn annually.
Oxford PV represents a rare example of a European startup that could actuallycompete with Chinain the global solar market.
Story bySion Geschwindt
Sion is a freelance science and technology reporter, specialising in climate and energy.