SSE Energy Supply Limited
Current Fuel Mix Disclosure: 36% Gas, 64% Renewable sources.
CO2 Emissions: 138g per kWh – Radioactive Waste: 0g per kWh
*Fuel mix disclosure as of October 2025
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SSE Energy Supply Limited address:
SSE Energy Supply Limited
1 Forbury Place
43 Forbury Road
Reading
Berkshire
RG1 3JH
SSE Energy Company Number: 03757502
SSE VAT Number: GB553769603
SSE Company Information:
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.
Brook Green Supply - Frequently Asked Questions
What is SSE’s Address?
The SSE head office address is: SSE Energy Supply Limited, 1 Forbury Place, 43, Forbury Road, Reading, Berkshire, RG1 3JH
What is SSE’s Company Number?
The SSE company number is 03757502
What is SSE’s VAT Number?
SSE’s VAT number is GB553769603
What is SSE’s Fuel Mix?
The current SSE Fuel Mix is 36% Gas and 64% Renewable sources.
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For more information
If you’d like to find out more about SSE or switching suppliers or if you’d simply like us to compare SSE prices for you as part of our no-obligation comparison service, phone us on
01273 914000
Alternatively, you can request a call back by clicking the button below and one of our energy experts will call at a time chosen by you.
