Market shares of Big Six domestic electricity suppliers in Great Britain 2010-2019

This statistic displays the quarterly domestic electricity supply market shares of the "Big Six" energy supply companies in Great Britain, from the first quarter of 2010 to the fourth quarter of 2019. It shows that British Gas was the market leader throughout this period, with a market share high of 25 percent from the fourth quarter of 2010 to the third quarter of 2013. Before shares fell to below 19 percent by the third quarter of 2018. Combined, the Big Six accounted for 70 percent of the electricity supply market by the end of 2019.

Domestic electricity supply market shares of the Big Six energy companies in Great Britain from the 1st quarter 2010 to 4th quarter 2019

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Release date

April 2020


United Kingdom (Great Britain)

Survey time period

Q1 2010 to Q4 2019

Supplementary notes

The share of a the market is determined by the share of meter points on the electricity distribution networks, and are provided by electricity distribution network operators.

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Statistics on "ScottishPower"

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