SSE Energy
SSE Energy
Current Fuel Mix Disclosure: 36% Natural Gas, 64% Renewable
CO2 Emissions: 138g per kWh – Radioactive Waste: 0g per kWh
*Fuel mix disclosure as of October 2025
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Head Office Address
No.1 Forbury Place, 43 Forbury Road, Reading, United Kingdom, RG1 3JH
Company Number
03757502
VAT Number
GB553769603
About SSE Energy
Although SSE was officially formed in 1998, its origins stem from two public sector electricity supply authorities, the former North of Scotland Hydro-Electric Board, founded in 1943 and the Southern Electricity Board created in 1948. Both organisations were privatised in 1990/1991 before then merging in 1998 to form Scottish and Southern Energy.
SSE Energy Supply Limited was formed in 1999.
After various acquisitions, including Swalec in August 2000 and the Fiddlers and Ferrybridge Power Stations in July 2004, Scottish and Southern Energy rebranded to SSE in January 2010.
SSE had originally planned to separate its retail division through a merger with Npower which was then owned by Innogy. This merger had been approved by the competition and markets authority in August of 2018 but was abandoned in December that year with both companies blaming very challenging market conditions.
SSE went on to sell its retail division of residential supplies to Ovo Energy, which was completed in January 2020 for £500 million.
SSE Energy Supply Limited supplies almost half a million business customers.
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