SSE's Managing Director, who is due to face MPs later today, explains why customers are experiencing a 8.3 percent increase in their bills.
A guide to some of the options open to you as a consumer if you believe you have been mis-sold to by SSE or any other energy company.
Ofgem's £10.5m fine imposed on SSE is the biggest ever authorities have imposed on an energy supplier.
Around a million households in Wales will see energy costs rise from today.
The owners of SWALEC, SSE, announced last month an average hike of 8.2 per cent.
It says that equates to two pounds a week for a typical dual fuel customer.
Wholesale prices and environmental, social and delivery costs are said to be to blame.
As energy companies are grilled by MPs about their profits and bonuses as they raise prices once again Rob Shelley has been hearing how one Welsh family is struggling to keep up with winter fuel costs.
North Wales MP Albert Owen asked Ian Peters from British Gas why energy bosses are getting huge bonuses.
The boss of the company which owns the energy firm Swalec has defended his firm's profits saying that without them it wouldn't be able to employ so many people. William Morris was amongst the energy chiefs quizzed by MPs about price rises today.
Bosses from the UK's six largest energy providers will be grilled by MPs today about recent price hikes.
Four of the companies have announced rises to average dual fuel energy bills:
- SSE - up by 8.2 percent for 10 million customer
- British Gas - up by 9.2 percent for 7.8 million customers
- RWE npower - up by 10.4 percent for 3.1 million customers
- ScottishPower - up by 7 percent for 2.2 million customers
Bosses from the "Big Six" energy companies are due to give evidence later today to the Commons Energy and Climate Change Committee where they are expected to be grilled by MPs.
Their appearance follows a statement by the Prime Minister's official spokesman who said it was up to the energy companies to justify their charges to consumers amid the latest round of price rises.
Liberal Democrat MP Roger Williams has asked the Prime Minister to consider setting up a not-for-profit energy company based on the model of Glas Cymru which owns Welsh Water. He now says he'll also raise it with Lib Dem Energy Secretary Ed Davey.
Plaid Cymru leader Leanne Wood made a similar call for the creation of a not-for-profit energy company in her recent conference speech.
Consumer Focus has welcomed Ofgem's decision to fine SSE for the "systemic failure" in its direct selling operations.
– Adam Scorer, director of policy at Consumer Focus
This is not a case of one bad apple or one rogue sales team. The problems at SSE affected the whole direct selling operation and represent a fundamental failure at one of our biggest energy companies.
Other companies have also broken direct selling.
This has been a stain on the energy market since the introduction of competition. While the situation has got better and many companies have decided to end doorstep sales, the recent history casts a long shadow and Ofgem are right to take this scale if action.