A new report by the Institution of Mechanical Engineers (IMechE) says that the Government’s policy to close all coal-fired power stations by 2025, combined with the retirement of the majority of the UK’s ageing nuclear fleet and growing electricity demand, will leave the country facing a 40-55% electricity supply gap.

The report entitled Engineering the UK Electricity Gap says plans to plug the gap by building Combined Cycle Gas Turbine (CCGT) plants are unrealistic, as the UK would need to build about 30 new plants in less than 10 years. The UK has built just four CCGTs in the last decade, closed one CCGT and eight other power stations. In addition, in 2005 20 nuclear sites were listed for decommissioning, leaving a significant gap to be filled.

According to the report, the country has neither the resources nor enough people with the right skills to build this many power stations in time. It is already too late for any other nuclear reactors to be planned and built by the coal ‘shut-off’ target of 2025, other than Hinkley Point C.

In addition, the report highlights that a greater reliance on interconnectors to import electricity from Europe and Scandinavia is likely to lead to higher electricity costs and less energy security.

Dr Jenifer Baxter, head of Energy and Environment at the Institution of Mechanical Engineers, and lead author of the report said: “The UK is facing an electricity supply crisis. As the UK population rises and with the greater use of electricity use in transport and heating it looks almost certain that electricity demand is going to rise.

“However with little or no focus on reducing electricity demand, the retirement of the majority of the country’s ageing nuclear fleet, recent proposals to phase out coal-fired power by 2025 and the cut in renewable energy subsidies, the UK is on course to produce even less electricity than it does at the moment.”

She continued: “Government needs to take urgent action to work with industry to create a clear pathway with timeframes and milestones for new electricity infrastructure to be built including fossil fuel plants, nuclear power, energy storage and combined heat and power. With CCS now out of the picture, new low carbon innovations must be supported over the course of the next 10 years.”