Written Question·Department for Energy Security and Net Zero·UIN 126796

Natural Gas: Prices

Tabled: 13 April 2026

Answered: 21 April 2026

Question

Pippa Heylings

To ask the Secretary of State for Energy Security and Net Zero, how many hours over the past year has gas generation been online and setting the wholesale price, used not meet power demand but to meet system inertia requirements.

Answer

Michael Shanks

Generation activated to meet the system’s inertia requirements does not set the wholesale price. NESO meets system inertia requirements through procuring in the balancing and ancillary service markets, rather than the wholesale market. The wholesale marke...

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