"It is vital that the regulator, Ofgem, makes it very clear that the price cap is a temporary solution and that people will still most likely only get the best deals by shopping around for fixed tariffs".
A typical consumer on the most expensive tariffs would save over £120.
However consumer groups have warned that the decision is the "wrong message, at the worst possible time", warning that the cap could make consumers complacent and deter them from switching provider.
SSE chief Alistair Phillips-Davies said the plan would "require the most careful scrutiny in the coming weeks".
Since April, Scottish Gas owner British Gas has raised its price twice - adding a total £104 to the average bill.
If you are one of the 11 million now on one then you could save more money by moving to a different energy tariff.
Peter Earl, head of energy at Comparethemarket.com, said the move was only a temporary "sticking plaster".
"The price cap is created to be a temporary measure, in place until 2023 at the latest", the watchdog said.
Industry watchdog Ofgem is bringing in a price cap that will limit energy companies charging no more than £1,136 a year.
The price cap does include a clause insisting on "the need to maintain incentives for domestic customers to switch to different domestic supply contracts".
Stephen Murray, energy expert at MoneySuperMarket, suggested there was an element of "political soundbite" to Ofgem's price cap announcement, and that the were already options in place for customers to save on energy bills now.
"Ofgem has made full use of the powers parliament has given us to propose a tough price cap which will give a fairer deal to consumers on poor value default tariffs", said the watchdog's chief executive Dermot Nolan.
Business and Energy Secretary Greg Clark said the cap will put a stop to the exploitation of loyal customers, saying the Government "is delivering on its promise to end that injustice and protect households across the country from unjustified price rises".
There are arguments both for and against an energy price cap and we've run opinion pieces on both (click the links to read these).
Nevertheless, the company reiterated its position that caps were not sustainable for the United Kingdom energy market. "This may be the great unintended effect of the price cap".
By the time the price cap comes in Centrica will lose about 210 million pounds for its SVT customers, which should be "manageable", according to Ahmed Farman, an analyst at Jefferies in London.
EON SE announced last month it would cut 500 U.K.jobs in Britain ahead of the squeeze on profits expected from the price cap.
The three leaders are expected to determine the future of Idlib amid growing fears of a humanitarian disaster . Thousands of refugees had fled to Turkey after the regime assault targeting Aleppo in 2016.
Half (50%) of those who had an unexpected medical bill say the amount they were expected to pay was less than $500 overall. Similar shares of Republicans hold unfavorable views (78%) as Democrats hold favorable views (77%).
A weather delay pushed kickoff back 45 minutes, forcing fans to wait a bit longer for the championship ceremony. The Eagles managed to do enough to survive the challenge from Atlanta and win by a final score of 18-12.
The piece describes officials subtly steering the ship of state around Trump, not trying to throw him overboard. Has the 25th Amendment been used before? The president may later declare himself able and try to retake power.
As you can see, the EQC sports a slightly unusual design compared with Mercedes's current crop of vehicles. Together the motors generate 765Nm of torque, enough to propel the 2.5-tonne SUV to 60mph in five seconds.
Shouts of "fight" and "that's Cardi B , there's a fight" could be heard in a video that Reuters captured at the event. The scuffle began after rapper Cardi approached Minaj over "lies Nicki was spreading", celebrity website TMZ said.
In May, Miller was arrested in Los Angeles in connection with a auto crash and was later charged with driving under the influence. Grande has disabled comments on her Instagram posts after commenters began to blame the rapper's death on the break-up.
Kim will meet later this month with South Korea President Moon Jae-in to talk over "practical measures" toward that goal . Trump at a summit in June , hardly any progress has been made in getting the North to hand over its nuclear weapons.
In the following years, Reynolds appeared mainly in supporting and smaller roles on a number of films and TV shows. With his trademark mustache, rugged looks and macho aura, Reynolds was a leading male sex symbol of the 1970s.
Last year, a New York University student who worked undercover in an iPhone factory reported that he made $450 per month . So far this year, US imports from China are running roughly 8 percent higher than during the same period in 2017.
Jabari Bird Arrested For Alleged Domestic Incident
Bird was arrested and, according to a statement by police Saturday, is "currently being guarded by the Boston Police" at St. A statement from the Celtics says they are taking the allegations "very seriously".
Madison Keys searching for US Open redemption and glory
On Wednesday, Osaka only needed 12 winners because a whopping 31 of her other points came via unforced errors by Tsurenko. Keys was one of four American women in the final four a year ago, when she was the runner-up to Sloane Stephens .
Cops raid home of couple who raised $400K for homeless man
In turn, she and her boyfriend, Mark D'Amico, started a GoFundMe page to raise money for Bobbitt that amassed more than $400,000. During a recent appearance on NBC's " Megyn Kelly Today " show, D'Amico said there was well over $150,000 left of the donations.
Djokovic beats heat and Millman to reach U.S. Open semis
The Serbian won only four of 20 break points against an opponent whose surprise run has been one of the stories of the tournament. Cilic has made two grand slam finals since but Nishikori has never been back and will now take on either twice U.S.
This Is the Most Germ-ridden Place in the Airport
Unfortunately for travellers, while the trays may be the dirtiest items in the airport, they're also one of the most unavoidable. The researchers encouraged people to minimize the spread of viruses by hand-washing and coughing into their sleeves.
Israeli strikes target Iranian positions in Syria
Russian Federation has been a key supporter of Assad and complained about militants in Idlib targeting its own facilities. The army of Syrian President Bashar Assad has retaken control of 70 percent of southwestern Syria, which borders Israel .