Following concerns about the market power of the Big Six energy suppliers in the UK and high prices for gas and electricity, the industry regulator, Ofgem, referred the industry to the Competition and Markets Authority (CMA) in June 2014. The CMA published its final report in June 2016. This argued that while there was sufficient potential for competition, consumers nevertheless needed further encouragement to switch suppliers. This would strengthen competition in the market.
To encourage switching, the CMA proposed the creation of a database that would include the details of customers who have been on a supplier’s standard variable tariff (SVT) for three or more years. Competitor energy suppliers would have access to this database to offer better deals for these customers.
There had already been calls for price caps to be imposed on suppliers. For example, in the run-up to the 2015 general election, the then Labour leader, Ed Miliband, proposed imposing a price freeze. This was criticised by the Conservatives for being too anti-market, that it would encourage energy companies to raise prices prior to the freeze and that it would be of no benefit in times of falling wholesale energy prices (which was the position in 2015).
Indeed, in its 2016 report, the CMA recommended price caps only for the 16% of people on prepayment meters and these would be variable caps not freezes. This was followed in February 2017, by Ofgem’s announcement that a temporary price cap for such customers would come into effect in April 2017. The level of the cap would vary by meter type and region. It would also be reviewed every six months to reflect changes in costs and remain in place until 2020. There would be no cap on other customers.
But in the run-up to the 2017 election, the Conservatives announced that they would, after all, introduce a price cap on SVTs – 66% of customers are on such tariffs. Before the details were announced, there was much speculation as to what form such a cap would take? It would not be a simple freeze. But there was debate as to whether caps would vary with wholesale costs or whether they would be relative to the company’s lowest tariffs or to those of its rivals.
As it turned out, the proposal was for a cap on standard variable tariffs. It would be set by Ofgem and reviewed every six months. The cap would be based on the cheapest standard variable tariffs in each part of the UK, taking into account the variable costs for transporting energy there. Ofgem will adjust the cap every six months to reflect changes in the wholesale cost of energy.
Articles before details were anniunced
U.K. Energy Industry Faults May’s Election Pledge to Cap Prices Bloomberg, Rakteem Katakey (23/4/17)
Conservatives promise to cap prices in UK energy market Financial Times, Jim Pickard and Nathalie Thomas (23/4/17)
How might an energy price cap work? BBC News, Brian Milligan (24/4/17)
UK government vows strong action to rein in energy companies The Guardian, Adam Vaughan (19/4/17)
Energy bills: what’s the difference between Tory cap and Miliband freeze? The Guardian, Adam Vaughan (23/4/17)
Capping energy prices? Still a bad idea Adam Smith Institute blogs, Sam Dumitriu (25/4/17)
Bulb becomes ‘first’ provider to cut energy prices this year Moneywise (24/4/17)
Experts slam Conservative plans to cap energy bills as ‘clumsy and counterproductive’ The Telegraph, Lauren Davidson (23/4/17)
Capping energy tariffs isn’t a one-way ticket to Venezuelan-style economic ruin Independent, Ben Chu (25/4/17)
Articles after details were anniunced
Conservatives defend plans to cap UK energy bills Financial Times, Jim Pickard and Nathalie Thomas (9/5/17)
What is the energy price cap – and what does it mean for bills? The Telegraph, Jillian Ambrose (9/5/17)
The new energy price cap con? The Telegraph, Jillian Ambrose (9/5/17)
May defends plan to cap ‘rip-off energy bills’ BBC News (9/5/17)
Q&A: The Tory plan to cap energy prices BBC News, Brian Milligan (9/5/17)
Energy prices could still go up under Theresa May’s price cap plans, admits Business Secretary Greg Clark Independent, Rob Merrick (9/5/17)
Tory claims over energy price cap are just hot air The Guardian, Nils Pratley (9/5/17)
Video and audio
UK government energy price cap ‘sheer politics’: Bernstein CNBC, Deepa Venkateswaran and Andrew Sentance (25/4/17)
Energy UK: price cap could backfire Sky News, Lawrence Slade (24/4/17)
Scottish Power: Capping prices ‘damages customers’ BBC News, Keith Anderson (24/4/17)
Tories to pledge energy bill cap BBC News, Michael Fallon (24/4/17)
Tories: Energy cap will protect vulnerable people BBC Today Programme, Business Secretary Greg Clark (9/5/17)
Energy cap: good or bad for consumers? Sky News, Stephen Fitzpatrick and James Kirkup (9/5/17)
Questions
- What scope is there for tacit collusion between the Big Six energy suppliers?
- What is meant by the RPI–X price cap? How does it differ from proposals being considered by the government?
- Why are people often reluctant to switch energy supplier?
- How could people be encouraged to switch supplier?
- What are the advantages and disadvantages of imposing a price cap for SVTs (a) relative to costs; (b) relative to lower-priced tariffs?
- Comment on Centrica’s chief executive officer Iain Conn’s statement that “price regulation will result in reduced competition and choice, and potentially impact customer service”.
- Comment on the statement by Lawrence Slade, chief executive officer of Energy UK, that intervention would create “huge uncertainty around government intentions, potentially putting at risk the billions in investment and jobs needed to renew our energy system”.
- Would an announcement of the introduction of a price cap in the near future necessarily encourage energy companies to raise their price now?
In June 2014, the Gas and Electricity Markets Authority (which governs the energy regulator, Ofgem) referred Great Britain’s retail and wholesale gas and electricity markets to the Competition and Markets Authority (CMA). The market is dominated by the ‘big six‘ energy companies (British Gas, EDF, E.ON, npower, Scottish Power and SSE) and Ofgem suspected that this oligopoly was distorting competition and leading to higher prices.
The CMA presented its report on 10 March 2016. It confirmed its preliminary findings of July and December 2015 “that there are features of the markets for the supply of energy in Great Britain that result in an adverse effect on competition”. It concludes that “the average customer could save over £300 by switching to a cheaper deal” and that “customers could have been paying about £1.7 billion a year more than they would in a competitive market”.
It made various recommendations to address the problem. These include “requiring the largest suppliers to provide fuller information on their financial performance” and strengthening the role of Ofgem.
Also the CMA wants to encourage more people to switch to cheaper suppliers. At present, some 70% of the customers of the big six are on default standard variable tariffs, which are more expensive than other tariffs available. To address this problem, the CMA proposes the setting up of “an Ofgem-controlled database which will allow rival suppliers to contact domestic and microbusiness customers who have been stuck on their supplier’s default tariff for 3 years or more with better deals.”
Another area of concern for the CMA is the 4 million people (16% of customers) forced to have pre-payment meters. These tend to be customers with poor credit records, who also tend to be on low incomes. Such customers are paying more for their gas and electricity and yet have little opportunity to switch to cheaper alternatives. 
For these customers the CMA proposed imposing transitional price controls from no later than April 2017 until 2020. These would cut typical bills by some £80 to £90 per year. In the meantime, the CMA would seek to remove “restrictions on the ability of new suppliers to compete for prepayment customers and reduce barriers such as debt issues that make it difficult for such customers to switch”.
Despite trying to address the problem of lack of competition, consumer inertia and barriers to entry, the CMA has been criticised for not going further. It has also been criticised for the method it has chosen to help consumers switch to cheaper alternative suppliers and tariffs. The articles below look at these criticisms.
Podcast
Competition and Markets Authority Energy Report BBC You and Yours (10/3/16)
Articles
Millions could see cut in energy bills BBC News (10/3/16)
Shake-up of energy market could save customers millions, watchdog says The Telegraph, Jillian Ambrose (10/3/16)
UK watchdog divided over energy market reforms Financial Times, Kiran Stacey (10/3/16)
How the CMA energy inquiry affects you Which? (10/3/16)
UK watchdog accused of bowing to pressure from ‘big six’ energy suppliers The Guardian, Terry Macalister (10/3/16)
CMA documents
CMA sets out energy market changes CMA press release (10/3/16)
Energy Market Investigation: Summary of provisional remedies Competition and Markets Authority (10/3/16)
Questions
- Find out the market share of the ‘big six’ and whether this has changed over the past few years.
- What, if any, are the barriers to entry in the gas and electricity retail markets?
- Why are the big six able to charge customers some £300 per household more than would be the case if they were on the cheapest deal?
- What criticisms have been made of the CMA’s proposals?
- Discuss alternative proposals to those of the CMA for dealing with the problem of excessive prices of gas and electricity.
- Should Ofgem or another independent not-for-profit body be allowed to run its own price comparison and switching service? Would this be better than the CMA’s proposal for allowing competitors access to people’s energy usage after 3 years of being with the same company on its standard tariff and allowing them to contact these people?
Over 90% of UK households buy their gas and electricity from one of the ‘big six’ energy suppliers – British Gas (Centrica), EDF, E.ON, npower (RWE), Scottish Power (Iberdrola) and SSE. The big six are currently being investigated by the Competition and Markets Authority (CMA) for possible breach of a dominant market position.
An updated ‘issues statement‘ summarises the investigation group’s initial thinking based on the evidence it has received. In paragraph 16 it states:
Comparing all available domestic tariffs – including those offered by the independent suppliers – we calculate that, over the period Quarter 1 2012 to Quarter 2 2014, over 95% of the dual fuel customers of the Six Large Energy Firms could have saved by switching tariff and/or supplier and that the average saving available to these customers was between £158 and £234 a year (depending on the supplier).
Between 40% and 50% of customers have been with a supplier for more than 10 years. The companies are thus accused of exploiting these ‘loyalty’ customers, many of whom are too busy or ill-informed to switch to an alternative supplier. According to the uSwitch article below:
This is a particular issue for the most vulnerable of customers, including the elderly, who view switching as ‘impossible’.
But the elderly were not the only consumers losing out; the CMA found that those customers most likely to be on expensive standard tariffs were less educated, or on lower incomes, or single parents, and did not necessarily have access to the Internet.
And the problem of penalising ‘loyalty’ customers who do not shop around applies in other industries, most notably banking. People who regularly switch savings accounts can get higher interest rates, often for a temporary ‘introductory’ period. Similarly, people who regularly transfer credit card debt from one card to another can take advantage of low interest rate, or even zero interest rate, deals for an introductory period.
Returning to the energy industry. Is the problem one of oligopoly? Do the big six have too much market power and, if so, what can be done about it? Should they be split up? Should regulation be tightened? Should new entrants be encouraged and, if so, what specific measures can be taken? The following articles explore the issues and possible policies.
Articles
British energy customers missed out on savings Reuters, Nina Chestney (18/2/15)
U.K. Energy Customers Could Save by Shopping Around: CMA BloombergBusiness, Aoife White (18/2/15)
Big six energy firms overcharging customers by up to £234 a year The Guardian, Sean Farrell (18/1/15)
Big six energy firms may lose quarter of customers by 2020, analysts warn The Guardian, Terry Macalister (1/10/14)
UK watchdog says big energy groups do not enjoy unfair advantage Financial Times, Michael Kavanagh (18/2/15)
CMA energy market investigation update: millions are punished for being loyal uSwitch, Lauren Vasquez (19/2/15)
Gas and electricity bills – the key questions Channel 4 News (18/2/15)
Energy customers miss big savings, says CMA inquiry BBC News, John Moylan (18/2/15)
Big Six energy companies overcharging loyal customers by up to £234 a year says watchdog Independent, Simon Read (18/2/15)
Consumer groups demand change after ‘Big Six’ accused of penalising customers out of hundreds of pounds Independent, Simon Read (19/2/15)
Energy companies’ loyalty problem lights the way forward The Conversation, Bridget Woodman (19/2/15)
CMA press releases and reports
Energy market investigation – updated issues statement Competition and Markets Authority (18/2/15)
Energy market investigation Competition and Markets Authority (23/2/15)
Energy Market Investigation: Updated Issues Statement Competition and Markets Authority (18/2/15)
Questions
- What barriers to entry exist in the electricity and gas supply markets?
- Explain how the big six are practising price discrimination. What form does it take and how are the markets separated?
- Find out what tariffs are offered by each of the big six. When you have done so, reflect on how easy it was to find out the information and why so few customers switch.
- How could more people be encouraged to ‘shop around’ and switch energy suppliers?
- Explain the five theories of harm identified by the CMA. Would a rise in market share of the smaller energy suppliers adequately combat each of the five types of harm?
- In what ways may UK energy regulation be ‘a barrier to pro-competitive innovation and change’?
- What are the arguments for and against breaking up the big six?
- What are the arguments for and against electricity and gas price control?
The UK energy industry (electricity and gas) is an oligopoly. There are six large suppliers: the ‘Big Six’. These are British Gas (Centrica, UK), EDF Energy (EDF, France), E.ON UK (E.ON, Germany), npower (RWE, Germany), Scottish Power (Iberdrola, Spain) and SSE (SSE Group, UK). The Big Six supply around 73% of the total UK market and around 90% of the domestic market.
Energy suppliers buy wholesale gas and electricity and sell it to customers. The industry has a considerable degree of vertical integration, with the energy suppliers also being involved in both generation and local distribution (long-distance distribution through the familiar pylons is by National Grid). There is also considerable horizontal integration, with energy suppliers supplying both electricity and gas and offering ‘dual-fuel’ deals, whereby customers get a discount by buying both fuels from the same supplier.
Smaller suppliers have complained about substantial barriers to entry in the industry. In particular, they normally have to buy wholesale from one of the Big Six. Lack of transparency concerning their costs and internal transfer prices by the Big Six has led to suspicions that they are charging more to independent suppliers than to themselves.
Under new regulations announced by Ofgem, the industry regulator, the Big Six will have to post the prices at which they will trade wholesale power two years in advance and must trade fairly with independent suppliers or face financial penalties. In addition, ‘a range of measures will make the annual statements of the large companies more robust, useful and accessible.’ According to the Ofgem Press Release:
From 31 March new rules come into force meaning the six largest suppliers and the largest independent generators will have to trade fairly with independent suppliers in the wholesale market, or face financial penalties. The six largest suppliers will also have to publish the price at which they will trade wholesale power up to two years in advance. These prices must be published daily in two one-hour windows, giving independent suppliers and generators the opportunity and products they need to trade and compete effectively.
But will these measures be enough to break down the barriers to entry in the industry and make the market genuinely competitive? The following articles look at the issue.
Articles
Boost for small energy firms as Big Six are ordered to trade fairly on wholesale markets or face multi-million pound fines This is Money, Rachel Rickard Straus (26/2/14)
Energy firms told to trade fairly with smaller rivals BBC News, Rachel Fletcher (26/2/14)
Ofgem ramps up scrutiny of Big Six accounts The Telegraph, Denise Roland (26/2/14)
‘Big six’ told to trade fairly – will it make a difference? Channel 4 News, Emma Maxwell (26/2/14)
Energy regulator Ofgem forces trading rules on ‘big six’ suppliers Financial Times, Andy Sharman (26/2/14)
Information
Ofgem tears down barriers to competition to bear down as hard as possible on energy prices Ofgem Press Release (26/2/14)
The energy market explained Energy UK
Gas Ofgem
Electricity Ofgem
Energy in the United Kingdom Wikipedia
Big Six Energy Suppliers (UK) Wikipedia
Questions
- Describe the structure of the UK energy industry.
- What are the barriers to the entry of new energy suppliers and generators in the UK?
- To what extent is vertical integration in the electricity generation and supply industry in the interests of consumers?
- To what extent is horizontal integration in the electricity and gas markets in the interests of consumers?
- How will requiring the six largest energy suppliers to post their wholesale prices for the next 24 months increase competition in the energy market?
- Is greater transparency about the revenues, costs and profits of energy suppliers likely to make the market more competitive?
- Identify and discuss other measures which Ofgem could introduce to make the energy market more competitive.
The energy market is complex and is a prime example of an oligopoly: a few dominant firms in the market and interdependence between the suppliers. Over 95% of the market is supplied by the so-called ‘big six’ and collectively they generate 80% of the country’s electricity. There are two further large generators (Drax Power Limited and GDF Suez Energy UK), meaning the electricity generation is also an oligopoly.
This sector has seen media attention for some years, with criticisms about the high profits made by suppliers, the high prices they charge and the lack of competition. Numerous investigations have taken place by Ofgem, the energy market regulator, and the latest development builds on a simple concept that has been a known problem for decades: barriers to entry. It is very difficult for new firms to enter this market, in particular because of the vertically integrated nature of the big six. Not only are they the suppliers of the energy, but they are also the energy generators. It is therefore very difficult for new suppliers to enter the market and access the energy that is generated.
Ofgem’s new plans will aim to reduce the barriers to entry in the market and thus make it easier for new firms to enter and act as effective competitors. The big six energy generators are vertically integrated companies and thus effectively sell their energy to themselves, whereas other suppliers have to purchase their energy before they can sell it. The regulator’s plans aim to improve transparency by ensuring that wholesale power prices are published two years in advance, thus making it easier for smaller companies to buy energy and then re-sell it. Andrew Wright, the Chief Executive of Ofgem, said:
These reforms give independent suppliers, generators and new entrants to the market, both the visibility of prices, and [the] opportunities to trade, [that] they need to compete with the largest energy suppliers…Almost two million customers are with independent suppliers, and we expect these reforms to help these suppliers and any new entrants to grow.
Although such reforms will reduce the barriers to entry in the market and thus should aim to increase competition and hence benefit consumers, many argue that the reforms don’t go far enough and will have only minor effects on the competitiveness in the market. There are still calls for further reforms in the market and a more in-depth investigation to ensure that consumers are really getting the best deal. The following articles consider this ongoing saga and this highly complex market.
Ofgem ramps up scrutiny of Big six accounts Telegraph, Denise Roland (27/2/14)
Energy firms told to trade fairly with smaller rivals BBC News (26/2/14)
Energy regulator Ofgem force trading rules on ‘big six’ suppliers Financial Times, Andy Sharman (26/2/14)
Ed Davey calls on Ofgem to investigate energy firms’ gas profits The Guardian, Sean Farrell and Jennifer Rankin (10/2/14)
UK forces big power companies to reveal wholesale prices Reuters (26/2/14)
Watchdog unveils new rules on Big six energy prices Independent, Tom Bawden (26/2/14)
Energy Bills: New rules to boost competition Sky News, (26/2/14)
Questions
- What are the characteristics of an oligopoly?
- Explain the reason why the vertically integrated nature of the big six energy companies creates a barrier to the entry of new firms.
- What are the barriers to entry in (a) the electricity supply market and (b) the electricity generating market?
- What action has Ofgem suggested to increase competition in the market? How effective are the proposals likely to be/
- Why is there a concern about liquidity in the market?
- If barriers to entry are reduced, how will this affect competition in the market? How will consumers be affected?
- Why are there suggestions that Ofgem’s proposals don’t go far enough?
Indeed, in its 2016 report, the CMA recommended price caps only for the 16% of people on prepayment meters and these would be variable caps not freezes. This was followed in February 2017, by Ofgem’s announcement that a temporary price cap for such customers would come into effect in April 2017. The level of the cap would vary by meter type and region. It would also be reviewed every six months to reflect changes in costs and remain in place until 2020. There would be no cap on other customers.
