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<p>National Grid ESO manages network constraints. In 2023, constraint costs were £1.4bn
and the volume of balancing services used to manage constraints was around 12TWh.
Data are not available on exact timing of curtailment and the split of costs between
renewable and gas generators in 2023.</p><p>The Government is working with Ofgem and
network companies to accelerate network delivery in line with the Winser recommendations
and is halving the construction time of new transmission infrastructure from 14 years
to 7, delivering the grid capacity needed to alleviate network constraints. The Review
of Electricity Market Arrangements consultation considers several options which could
help to reduce constraint costs, including locational pricing, electricity storage
deployment and establishing constraints markets.</p>
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