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Update: will the proposed energy price cap be enough?

Energy prices

Prime Minister Theresa May has announced plans to tackle rip-off energy bills with an energy price cap. But will such a cap be enough to help you?

Update: 6 September 2018

Households on the most expensive energy tariffs could save around £120 per year when a new price cap comes into force this winter. But the cap doesn’t mean you’re protected from overpaying on gas and electricity – switching supplier will save you more.

Alex Neill, Which? managing director of home products and services, said:

“While this cap may bring a price cut for some, people shouldn’t think it will mean they’re automatically getting the cheapest deal on the market. There are still better deals on the market and energy companies must not use the cap as an excuse to delay helping the millions of customers stuck on rip-off standard variable tariffs to move. The price cap can only be a temporary fix and the Government, regulators and the big providers should now press ahead with reforms to create real competition, promote innovation and improve customer service”

Energy price cap

During her speech to Conservative Party Conference, Theresa May announced plans for an energy price cap. The Prime Minister said:

‘The energy market punishes loyalty with higher prices, and the most loyal customers are often those with lower incomes, the elderly, people with lower qualifications and people who rent their homes’

And announced that a draft Bill will be published next week that would give Ofgem powers to impose a cap on all standard variable tariffs.

The move puts an end to months of buck-passing between the government and Ofgem about how to tackle soaring household energy bills. And it looks like it could finally deliver on the government’s pledges made during the General Election.

There are millions of hard-pressed energy customers still suffering due to a lack of competition in the energy market. So any intervention that brings down energy bills will be welcome.

That said, in bringing forward this legislation, the government must ensure that any cap doesn’t result in higher bills overall, undermine improvements in service or bring much-needed innovation to a halt.

To ensure that any intervention that’s made by the government is actually a good outcome for bill payers, we believe that it should pass five key tests.

1. It must not cause longer-term price increases
If bill payers see price reductions overnight, but energy providers offset initial reductions with price increases over the long-term, the cap won’t have worked.

2. It must not remove incentives for providers to improve their service
Consumers have routinely suffered from poor customer service from many suppliers and have faced particular issues with inaccurate bills and poor complaint handling.

3. It must not stifle innovation
The government and the regulator must ensure that the cap does not stop consumer-friendly innovation in the energy market. They must ensure that the smart meter roll-out continues to be advanced in the most cost-effective way possible.

4. It must lead to a truly competitive energy market
Consumers have suffered as a result of a lack of competition in the energy market with the competition authorities estimating that people are collectively overpaying by £1.2bn as a result.

5. It must have clear criteria for bringing any cap to an end
The long-term objective must be for a competitive energy market that delivers for consumers. This means that any price cap should be time-limited. The government and the regulator must set out proposals for the length of the cap, how they will monitor its success, and the criteria by which it will be removed.

Fairer energy

Of course, the cap will not take effect this winter, which may be a disappointment to those who are already concerned about energy costs as we descend into the colder, darker months.

With a number of price hikes by a number of larger and smaller energy suppliers in recent months, energy prices are returning as a top financial concern for many. So the draft Bill must make the most of the opportunity to fix this broken market and deliver a fairer deal.

Now we await the publication of the draft Bill and the full details of the Prime Minister’s proposal.

Update: 11 October 2017

The energy regulator, Ofgem, will extend its current price cap for prepayment gas and electricity meter customers to cover an additional one million households this winter.

The plan will see energy bills cut by an average of £120 over the year for some of the UK’s most vulnerable households, according to the regulator.

The regulator has also said that it will begin consulting on extending the price cap for a further two million households for next winter, once the government’s price cap plans are confirmed. The Prime Minister announced last week that the government will prepare a draft bill to propose an energy price cap, this draft bill is expected tomorrow.

Our managing director of home and legal services, Alex Neill, said:

‘As temperatures dip, today’s announcement will be welcome news to some of the UK’s most vulnerable households. The implementation of a market-wide price cap is clearly going to take some time, so it’s right that the regulator is looking to more quickly protect the most vulnerable.

‘Energy companies must also do much more to engage their customers, helping them to switch to a better deal now. Only time will tell whether all of these interventions will really deliver better outcomes for consumers.’

We want to see a fairer energy market for all households. Every household, even those affected by the energy price cap, could get a better deal by switching. Our free Which? Switch service can help you compare gas and electricity prices and help you find the best deal for you.

Do you think a price cap will be the solution we need to fix the energy market? What else would you like the government to do?

Update: 12 October 2017

We’ve been campaigning for many years to highlight the broken energy market. Over 500,000 supporters supported our Fair Energy Prices campaign, urging energy companies and the regulator to do more to get customers off rip-off standard variable tariffs (SVTs).

So the news that the government has published a draft bill to introduce a price cap should be welcome. But it isn’t quite so straightforward.

Two-thirds of households in England, Scotland and Wales will become much better off overnight when the cap is introduced, giving relief to hard-pressed consumers. 14 million people on SVTs will save themselves hundreds of pounds a year.

But although the Draft Bill requires Ofgem, the energy regulator, to put the cap in place as soon as possible, consumers shouldn’t expect to benefit soon. The Draft Bill will have to go through pre-legislative scrutiny first before a bill goes through the normal legislative process and Ofgem consults on the measure. Then there will be another step of statutory consultation to change energy suppliers’ licensing conditions. It’s unlikely the cap will come into force until winter 2018/19, to remain in place until at least 2020.

Whilst a cap may sound like a positive move, we want the government to safeguard against any unintended consequences like higher prices, reduced competition in the market and poorer customer service. So it is promising that the Draft Bill outlines a temporary cap, and Ofgem will be tasked with making sure competition and consumer incentives to switch are preserved. But there is a long road to travel down before we know what the actual cap will look like.

Update: 13 February 2018

A report published by the Business, Energy and Industrial Strategy (BEIS) Committee has concluded that the government’s proposed energy price cap is necessary to address the UK’s broken energy market.

According to the Committee, the energy market has been dysfunctional for years. It highlighted that the regulator has failed to protect energy customers.

The report found that many energy suppliers are making substantial profits out of around 12 million ‘sticky’ customers who are on poor-value tariffs. The committee believes that an absolute price cap is the best way to tackle this overcharging for energy.

The introduction of a price cap should be a helping hand for millions who are paying over the odds for their energy. However, we’ve stressed that this price cap should not lead to any unintended consequences for consumers, such as poor customer service or higher prices overall.

While the Committee has called for the cap to be urgently introduced, it’s not expected to come into effect until next winter at the earliest. Our research found that you could save up to £305 per year by switching*, so if you think you could be overpaying for your energy then try Which? Switch to compare prices and see if you could get a better energy deal. Even once the price cap is in force, you will have to switch to get the best deals on the market

*A saving of £305 per year is possible by switching from the priciest Big Six standard tariff to the cheapest deal on the market. The figure is correct as of the 1 February 2018.

Andy the Nomad says:
1 December 2018

Is it working? Looking at the fact that Ofgem have proudly declared that they believe five of the big six will be unprofitable (if they weren’t already) due to the price cap, and the continuing flow of smaller supplier bankruptcies, it seems that the policy is a great success. I work in the industry, and I know that there’s several more suppliers on the verge of bankruptcy. Due to Ofgem’s stupidly conceived rules, the cost of supplier bankruptcies is passed on to those suppliers who who were more prudent, adding further pressure to bills More widely the UK energy sector has become a singularly uninviting sector to invest in. And despite the price cap, energy prices will continue to rise over forthcoming years to pay for already committed investments in all the government’s windmills, solar farms, which then beget further costs by requiring additional generation backup and investment to stabilise the grid. We have the incompetently conceived smart meter programme pushing up costs for no benefit, costly follies like Hinkley Point C, and at a time when France is announcing shutting down all remaining coal power plants and 15% of its nuclear fleet over the next fifteen years, Ofgem’s bunglers are hoping to subsidise undersea interconnectors, believing that when the UK is short of power, other countries will magically have a surplus. I could go on, and on, and on with other examples of madness in the work of our officious, interfering, energy regulator. A thought in passing: Ofgem are always prattling on that the energy market doesn’t work for consumers. Given that they have been probably Britain’s most powerful and active sector regulator for the past two decades, it would seem that the regulator itself is unfit for purpose.

When I see the pitiful handwringing by Which over energy prices, and yet its involvement in the misguided price cap, and failure to challenge the vastly expensive energy policy, I conclude that something’s very wrong in Hertford, and Which? simply don’t understand any of Britain’s costly, chaotic, and counterproductive energy policy. But I might also conclude that something is wrong in Hertford from the fact that Which describes itself as a “charitable, social enterprise” at the same time that it is awarding best buy status to a coffee machine costing ONE THOUSAND FOUR HUNDRED QUID.

derek says:
24 December 2018

How about getting rid of standing charges, and only pay for what you use,we could understand the price better and not the mess we have now, only pay for what you use a fair unit or therm price.


Then the price would rise through the roof Derek , standing charges cover maintenance of infrastructure .

DerekP says:
24 December 2018


Retailers can operate with zero standing charges if they want to, e.g.:


But I think the resulting tariffs don’t seem to be very popular with most consumers – or more retailers would be offering them.


The energy price cap can only be a temporary fix – what is now needed is real reform to promote competition, innovation and improved customer service in the broken energy market.”

I wonder what reforms are proposed, and how we should promote competition when there are already around 60 dual fuel suppliers.

We’ve seen one quite predictable effect of the price cap – the great reduction in the number of, and savings provided by, fixed price tariffs. Why should we be surprised? Energy companies will have to maintain their profit margin, so will no longer be able to attract new customers with a low-cost fixed price tariff subsidised by their standard variable tariff customers. A good thing too for customers in general, in my opinion; much better to simply charge what it costs, providing the regulators ensure charges properly reflect the wholesale costs.

It would be useful if Which? spelled out exactly what a model energy supplier should be that is achievable commercially. I have to say that my experiences with npower and Scottish Power have been adequate so far; I’ve had competitive tariffs, refunds paid promptly, queries answered, help with switching when there was a problem.

Philip Grierson says:
9 January 2019

I got a hugely inflated invoice, based on estimated readings, just at the end of 2018. A week later the company has gone bust. Economy Energy were a terrible operator, and I can’t help thinking that there was something very dodgy going on when they sent this bill out to me just before they collapsed!


Philip- normal business policy UK – before you go bust send out bills to the debtors because you dont have to pay them back –why-
Creditors FIRST- debtors LAST.

Ian Scott says:
10 January 2019

Almost all Energy Suppliers prices are deliberately confusing so that they benefit from customers making an error when trying to select what they perceive as the best deal. I appreciate that the price they have to pay will change due to a variety of reasons but the choice presented to customers could be greatly simplified.
The management at these businesses are incentivised by profit and performance related bonuses and until that changes nothing else will. They are motivated by greed. They should try living homeless (or in a cold damp house with a pittance for income so they have to choose between heat or food) for a whole month in winter and see how that makes them feel.


Ian concentrate on who helped this to happen as changes always come from the top unless its a revolution.
People only get what they vote for.


If you put your last year’s energy consumption into Which?Switch you will get a list of deals that are simple to understand. These will also show the costs on which they are based – a unit price for each unit of gas and electricity and a daily standing charge for each. I’ve not found anything deliberately confusing about tariffs but perhaps you could give an example?


Collective switching schemes can offer very good prices and this option does not feature in price comparison services.