Feed in Tariff (FiT) statistics released today show an increase in installations for May.
The Department for Energy and Climate Change (DECC) figures reveal that 277,364 installations were completed nationwide. This amounts to a total of 1.2 GW.
Solar photovoltaic installations accounted for 99% of all installations and 92% of sum capacity.
The statistics demonstrate an increase of 6% in total installed capacity and 5% total number of installations from April.
REC Solar's Jan Jacob Boom-Wichers, managing director for France, Benelux, UK and Ireland said: "We are pleased to see that the UK market is slowly stabilising after the sharp drop in installations in March 2012 when the new support scheme took effect. We believe that the DECC degression model supports sustainable growth for the UK solar market as it delays cuts in FiTs if demand is lagging."
He added: "To meet the 22 GW solar target in the UK by 2020, current levels of PV deployment will have to increase. We believe market growth could be stimulated through net metering in addition to longer-term visibility for solar customers and suppliers."