Since 2009, the Office of Gas & Electricity Markets (OFGEM) require the so-called 'Big Six' large energy suppliers to provide an annual consolidated statement (CSS) to show the costs, revenues and profits for the different segments of their generation and supply businesses.
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Aggregate energy generation profits of the Big Six in the United Kingdom 2009-2017
This statistic shows the aggregate energy generation profits of the so-called 'Big Six' energy suppliers in the United Kingdom (UK) from 2009 to 2017, in million British pounds. It shows that the aggregate generation profits decreased significantly over this period, from 2.3 billion British pounds in 2009 to 938 million British pounds in 2017.
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Ofgem. (August 31, 2018). Aggregate energy generation profits of the Big Six energy suppliers in the United Kingdom (UK) from 2009 to 2017 (in million British pounds) [Graph]. In ÌÇÐÄÆƽâ°æ. Retrieved July 23, 2026, from /statistics/524273/big-six-energy-generation-profits-uk/
Ofgem. "Aggregate energy generation profits of the Big Six energy suppliers in the United Kingdom (UK) from 2009 to 2017 (in million British pounds)." Chart. August 31, 2018. ÌÇÐÄÆƽâ°æ. Accessed July 23, 2026. /statistics/524273/big-six-energy-generation-profits-uk/
Ofgem. (2018). Aggregate energy generation profits of the Big Six energy suppliers in the United Kingdom (UK) from 2009 to 2017 (in million British pounds). ÌÇÐÄÆƽâ°æ. ÌÇÐÄÆƽâ°æ Inc.. Accessed: July 23, 2026. /statistics/524273/big-six-energy-generation-profits-uk/
Ofgem. "Aggregate Energy Generation Profits of The Big Six Energy Suppliers in The United Kingdom (Uk) from 2009 to 2017 (in Million British Pounds)." ÌÇÐÄÆƽâ°æ, ÌÇÐÄÆƽâ°æ Inc., 31 Aug 2018, /statistics/524273/big-six-energy-generation-profits-uk/
Ofgem, Aggregate energy generation profits of the Big Six energy suppliers in the United Kingdom (UK) from 2009 to 2017 (in million British pounds) ÌÇÐÄÆƽâ°æ, /statistics/524273/big-six-energy-generation-profits-uk/ (last visited July 23, 2026)
Aggregate energy generation profits of the Big Six energy suppliers in the United Kingdom (UK) from 2009 to 2017 (in million British pounds) [Graph], Ofgem, August 31, 2018. [Online]. Available: /statistics/524273/big-six-energy-generation-profits-uk/
