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Ethical investment & sustainable living · since 2010 Sunday 15 November 2026
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Energy
Desk position: Energy, centre

Energy customers could save money by switching supplier

The Energy desk

A competition inquiry into the energy market has found that the vast majority of dual-fuel customers of the six largest energy firms could save money by switching suppliers or tariffs.

The big six energy firms – SSE, Centrica, EDF Energy, E.ON, Scottish Power, and RWE NPower – account for over 90% of the market. Energy regulator Ofgem proposed an investigation into the market to ensure there are no barriers to effective competition.

The Competition and Markets Authority (CMA) began looking at the energy market last year. It’s latest update found that over 95% of duel-fuel customers of the big six could have saved by switching tariff or supplier. The average saving available to these customers was between £158 and £234. Some 19 million customers currently purchase their energy in this way.

The statement also says that the CMA has observed that for the six largest energy firms, gas and electricity revenues from standard variable tariffs (SVT) are “consistently higher” than average revenue from non-standard, generally fixed-price, tariffs. Between 2011 and the second quarter of 2014 revenue from the SVT was 12% higher than average revenue from non-standard tariffs for electricity, and 13% higher for gas.

The big six are described as having “unilateral market power” over these customers. It adds that a “substantial portion” of domestic customers are disengaged, particularly SVT customers, which tends to insulate suppliers from competitive pressures

Juliet Davenport, CEO of independent renewable supplier Good Energy, commented, “We welcome this latest stage of the CMA inquiry. This is an opportunity to transform the energy market so that it works for the benefit of consumers not just the old suppliers. Better competition means more choice.”

Photo: sunshinecity via Flickr

Further reading:

Ofgem orders inquiry into energy market competition

Ofgem calls for wide-ranging competition inquiry into energy market

Competition inquiry into energy companies should also investigate wholesale gas market, warns MP

MPs call for cuts to fossil fuel subsidies, not green levies

Inquiry launched to ‘get to the bottom’ of UK energy subsidies

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