JA Solar said Southwick accounts for almost half of the more than 100MW it supplied to developer Solarcentury in 2014.
Southwick, near Portsmouth, is on course to be grid-connected in March this year, said the Chinese group.
JA Solar CEO Baofang Jin said: "Despite an impending renewables obligation (RO) limit to individual PV sites over 5MW, we are still optimistic about the UK market in 2015.
"The
