Currently just two in five newly built properties have solar panels, and ministers faced industry pressure to lower the number of new homes that would be required to have them.
But the installation of solar panels on new homes, as Labour targets 1.5 million new homes by the end of the decade, forms a key part of its net zero plans and its pledge to lower average household energy bills by ยฃ300.
Greenpeace welcomed the โcommon-senseโ decision. โFor too long weโve wasted the free energy that falls on the roofs of houses every single day,โ Lily Rose Ellis, a climate campaigner at the group, said.