The UK's energy and climate change policy has been recalibrated "to accelerate the transformation of the energy system and wider economy", the government has announced.
In an annual energy statement to Parliament, Energy and Climate Change Secretary Chris Huhne set out 32 actions to meet targets of cutting emissions by 80% by 2050.
"Today's Annual Energy Statement sets out 32 important actions to introduce the transparency, certainty and long-termism needed to unlock investment", Chris Huhne said.
In a statement the government said "the 2050 Calculator provides the most comprehensive, long-term analysis ever undertaken by the government."
"The challenge is ambitious but achievable. We're already on track to cut the UK's emissions by 34% by 2020, and will do more if we can win the case for greater ambition across the whole EU," Chris Huhne said.