After the depressed European market recovered last year, with 8.2GW of new installations, SPE's latest outlook predicts a decline to 7.3GW in 2016 in a medium scenario, caused mainly by the UK ending support for utility-scale PV.

However, from 2017, growth will accelerate and is expected to reach 24% in 2020, when SPE estimates annual installations could hit 15GW again.

That figure could reach 20GW if Brussels were to end minimum import prices on Chinese panels, pass ambitious renewables targets and design the electricity market in a way that "enables society to tap solar's technical and cost advantages", SPE says.

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