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Unless the government intervenes, energy bills will go up 50% next year.
The situation is critical as customers are already seeing record bills and are hit with more rises due to surging wholesale gas prices.
Emma Pinchbeck, head of trade body UKEnergy, said that rising prices were hurting the economy.
The government said it had measures to protect consumers, but she said tax cuts and green levies would help.
The rise in energy costs have hit European governments, Ms Pinchbeck said.
Since September, gas prices have been record-breaking, and have spiked again over the last couple of weeks. We have not seen levels like that before.
It's looking serious for the spring. Domestic energy bills are going to go up.
Average annual bills could be as high as £2,000 next year because of the record 450p a therm Wholesale costs hit another record this week, which experts predict could take average annual bills to about £2,000 next year.
In order to make savings and ease the impact, governments in Europe are asking commercial users to curb demand from factories.
Other governments have asked the Treasury to intervene. She said that less than a fifth of the bills are in the control of suppliers.
She said that many other governments across Europe have reduced taxes and other levies, and that it could save an average of £200 a year on an average bill.
Spain has extended a series of tax cuts.
The price is so high that it affects the entire economy. Does the Treasury need to do more? She said that they have been reluctant to intervene in the bits that are within their control.
Philippe Commaret, a managing director at the UK's fourth-biggest supplier, urged the government to support energy customers. This is only the beginning of the situation that is critical this winter.
The price cap could be as high as £2,000 by October next year, which is twice as high as the levels seen last winter.
Wait if you think your gas and electricity bills are high. That's the message coming from the industry.
The cost of gas on the wholesale markets has gone up in recent weeks. Since early November, it has doubled.
A lot of suppliers have gone out of business. Ofgem can hold back vulnerable consumers for a bit with its price cap, but it is just delaying the inevitable. The bills will rise dramatically next year.
The market was not designed to deal with this situation. The calls for the government to step in are growing louder.
The price cap, a limit on domestic rises set by the regulator Ofgem, protects consumers from the full increase in wholesale costs. The cap is due to change in April.
The cap is blamed for problems in the sector. More than two dozen energy suppliers have gone bust since the beginning of September, putting thousands of people out of work and leaving millions of homes in limbo as they wait for a new supplier.
Bulb Energy, with 1.7 million customers, was put into special administration, where it is run by Ofgem.
Every six months the cap is set. Suppliers have had to give energy to households at eye-watering losses because of the high gas prices.
The price cap causes issues in extreme circumstances, and Ofgem has proposed a series of short and long-term solutions.
The price cap can be reviewed every three months or it can be changed to a six-month fixed tariffs.
The Energy Price Cap is in place to protect customers from record increases in global gas prices and will remain in place this winter.
The Warm Home Discount and Winter Fuel Payments are supported by the Household Support Fund.
The Energy Retail Market Strategy will be updated next year to ensure that the market is working in the best interests of consumers.
The governor of the Bank of England warned last week that a recent spike in gas prices would cause UK inflation to rise to about 6 percent early next year. The rate of inflation is at a 10-year high.
Personal finance.
The industry of energy.
The energy company is called EDF Energy.
