The Government has announced plans to reduce the current cost of levies on energy bills, which it said will save households an average of £50 a year.
The Department of Energy and Climate Change (DECC) said it will establish a rebate saving the average customer £12 on their bill and reduce the cost of the Energy Company Obligation insulation scheme.
"While the Government cannot control the price of energy in the global market, it can help bill-payers by reducing the impact of social and environmental programmes on their bills," the DECC said in a statement.
The Department of Energy and Climate Change said it is up to the energy companies to justify their profits.
A departmental spokesman said: "Profits are a matter for energy companies to justify to their customers and shareholders, but profits are needed if they are to continue to invest in Britain's energy security and infrastructure".
The Department of Energy and Climate Change (DECC) has issued this statement following the Chancellor's announcement that he is "paving the way" for Chinese investment in British nuclear power plants, including potentially the one at Hinkley Point:
Negotiations remain on-going between Government and EDF Group on the potential terms of an investment contract for Hinkley Point C – with an agreement yet to be finalised.
The Department of Energy and Climate Change (DECC) has announced that there is potentially 40 trillion cubic metres (1,300 trillion cubic feet) of shale gas in the Bowland Basin in the North of England.
The study was commissioned from the British Geological Survey on an area covering 11 counties.
DECC advised that not all of this could be extracted, but said the report "will give industry and regulators an indication of how best to plan future exploratory drilling".
The government is announcing a package of reforms toenable shale gas exploration today.
The government has defended its energy and climate change policies pointing out that they account for just 9% of the average household bill - equivalent to £112.
This is how the average bill breaks down:
Fossil fuel prices - 47%, or £598
Network costs or transport and distribution of energy - 20%, or £257
Government policies (including renewable energy policies) - 9%, or £112
Renewable energy policies - 2.4%, or £30
A report from the Department for Energy and Climate Change (DECC) says that 85% of the rise in household bills between 2010 and 2012 was from wholesale energy costs and network costs, and 15% as a result of government policies.