The  UK capital, London, will have nearly 4GW of rooftop PV systems deployed  by 2030, which will play a key role in achieving its net-zero emissions  targets, research shows.
 

Four  options to help decarbonise London are presented in a new report from a  study commissioned by London Mayor Sadiq Khan from Element Energy.

While  all four scenarios of "high electrification, high hydrogen,  unrestricted, accelerated green" feature higher energy efficiency,  behavioral change, and electrification, they vary in speed and  technology choices.