The government’s big guns of energy will take the stage this afternoon for the final hearing of the Energy and Climate Change Committee’s inquiry Electricity Market Reform.

Energy Secretary Chris Huhne and his Minister Charles Hendry will give evidence to the committee, chaired by Tim Yeo.

Also giving evidence will be David Kennedy, chief executive of the Committee on Climate Change, Redpoint Energy director Duncan Sinclair, the CBI’s director for business environment Rhian Kelly, and Consumer Focus head of energy Audrey Gallagher.

The questions the committee wants answered are how will the UK decarbonise the electricity sector by 2030; how it will reform the electricity market in an affordable way; and how it can achieve security of supply?