As of 2023, the solar photovoltaic energy supply in the UK stood at 16.55 thousand gigawatthours. The forecast for the upcoming years shows a steady increase, with projections reaching 17.31 thousand gigawatthours in 2024, up to 20.41 thousand gigawatthours by 2028. Year-on-year variations reveal a gradual growth, with the most recent two years showing respective increases of approximately 4.62% and 1.24%. The five-year compound annual growth rate (CAGR) from 2024 to 2028 is estimated to be around 4.24%, indicating consistent expansion in the sector.

Future trends to watch include:

Technological advancements in solar panel efficiency, potentially accelerating growth.
Government policies and subsidies that may further support solar energy adoption.
Potential impacts of macroeconomic factors and energy market dynamics on investment in solar infrastructure.
Increasing corporate and public focus on renewable energy sources driving further investments.