Coal, Electric Power

September 10, 2025

Platts to discontinue Dark Spreads for the UK

Platts, part of S&P Global Commodity Insights, will 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 Sept. 30, 2024, after more than five decades of operation as Britain made the commitment to phase out coal-fired power generation.

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

Platts proposed the discontinuation of its Dark Spreads for the UK in a subscriber note published Aug. 27, available here: Platts proposes to discontinue Dark Spreads for the UK | S&P Global .

The following symbols are affected as part of this discontinuation:

Dark spreadClean dark spread

Clean dark spread (CPS)

UK (Eur/MWh)35% Efficiency35% Efficiency35% Efficiency
Month aheadCDUTM00CCUTM00CCHTM00
Month ahead + 1CDUTM27CCUTM27CCHTM27
Quarter aheadCDUTQ00CCUTQ00CCHTQ00
Quarter ahead + 1CDUTQ27CCUTQ27CCHTQ27
Season aheadCDUTS00CCUTS00CCHTS00
UK (GBP/MWh)

35% Efficiency

35% Efficiency35% Efficiency
Month aheadCDUZM00CCUZM00CCHZM00
Month ahead + 1CDUZM27CCUZM27CCHZM27
Quarter aheadCDUZQ00CCUZQ00CCHZQ00
Quarter ahead + 1CDUZQ27CCUZQ27CCHZQ27
Season aheadCDUZS00CCUZS00CCHZS00
UK ($/MWh)35% Efficiency35% Efficiency35% Efficiency
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 to powerpricing@spglobal.com, with a copy to pricegroup@spglobal.com .

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