Electric Power, Coal

August 27, 2025

Platts proposes to discontinue Dark Spreads for the UK

Platts, part of S&P Global Commodity Insights, proposes to discontinue the Platts Dark Spreads for the UK, following the phasing out of coal-fired electricity generation in the UK, from Nov. 19, 2025.

The UK's last remaining coal-fired power plant, Ratcliffe-on-Soar, was shut down on Sept. 30, 2024, after more than five decades of operation, as the UK made the commitment to phase out coal-fired power generation.

While coal has long held only a minor share of UK power mix, Ratcliffe's closure was a symbolic milestone in the country's quest to fully decarbonize the power sector by 2030.

The following symbols are affected as part of this proposal:

Dark spreadClean dark spreadClean dark spread (CPS)
35% Efficiency35% Efficiency35% Efficiency
UK (Eur/MWh)
Month aheadCDUTM00CCUTM00CCHTM00
Month ahead + 1CDUTM27CCUTM27CCHTM27
Quarter aheadCDUTQ00CCUTQ00CCHTQ00
Quarter ahead + 1CDUTQ27CCUTQ27CCHTQ27
Season aheadCDUTS00CCUTS00CCHTS00
UK (GBP/MWh)
Month aheadCDUZM00CCUZM00CCHZM00
Month ahead + 1CDUZM27CCUZM27CCHZM27
Quarter aheadCDUZQ00CCUZQ00CCHZQ00
Quarter ahead + 1CDUZQ27CCUZQ27CCHZQ27
Season aheadCDUZS00CCUZS00CCHZS00
UK ($/MWh)
Month aheadCDUXM00CCUXM00CCHXM00
Month ahead + 1CDUXM27CCUXM27CCHXM27
Quarter aheadCDUXQ00CCUXQ00CCHXQ00
Quarter ahead + 1CDUXQ27CCUXQ27CCHXQ27
Season aheadCDUXS00CCUXS00CCHXS00

The affected symbols are published in European Power Daily and Power in Europe publications, and the fixed pages PEP0224 and PEP0226.

Please direct any questions or comments by Sept. 10, 2025, to powerpricing@spglobal.com, with a copy to pricemethodology@spglobal.com.

Please provide a clear indication if comments are not intended for publication by Platts for public viewing. Platts will consider all comments received and will make these comments available on request.