Energy assets in United Kingdom

Installed capacity of operating assets, not electricity generated — a GW of solar and a GW of gas do not produce the same energy in a year.

94.9 GW operating across 2,810 tracked assets, 17.0 GW under construction · last five years down 21% on the five before.

Built from assets operating today, by commissioning year — plants that closed before now are not in the data, so early years show only what survived. The forward bars are capacity physically under construction, not a forecast. A further 9.1 GW is under construction with no stated completion year. 843 MW of operating capacity has no commissioning year and sits outside the curve. 3 assets have an announced retirement date; closures are not otherwise tracked, so no net-capacity line is drawn.