To ask the Secretary of State for Energy and Climate Change, what estimate her Department has made of the level of megawatts of new Combined-Cycle Gas Turbine (CCGT) capacity unit that will be commissioned by 2022; and what estimate her Department has made of the total available CCGT capacity by 2022.
The volume and mix of new capacity which will come forward is determined by the energy market, together with the capacity market mechanism. However, the Updated Energy and Emissions projections published in November 2015 included a reference case of a cumulative total of 5GW of new gas fired capacity and total gas fired capacity of 30GW as at 2022. This includes all forms of gas, including CCGT as well as flexible gas peaking capacity – the mix of new capacity will be determined through technology neutral competition in the capacity market. All projections are sensitive to changes in market conditions: if gas prices remain low, more new gas projects will be economic in this period, relative to ageing coal plant, than if the gas price rises.