Energy Markets Outlook: Electricity

Both the demand for electricity and the level of capacity to produce it are subject to a very wide range of uncertainty over the next decade. This is particularly the case on the supply side, where there is uncertainty both around the timing of forthcoming closures of existing coal-fired and nuclear capacity and around the timing and amount of new build. We look separately at the factors affecting supply and demand and then at the relationship between them. This is quantified in terms of the de-rated capacity margin measure which we are using as a proxy for security of electricity supply.