The increasing amounts of renewable energy present on the national grid reduce C02 emissions caused by electrical power but they fit into an electrical grid designed for fossil fuels. Fossil fuels can be turned on and off at will and so are very good at matching variations in load. Renewable energy in the form of wind turbines is more variable (although that variability is much more predictable than most people think) and there is a need for existing power plants to operate much more flexibly to accommodate the changing power output from wind, tidal and solar power.
EURECA, the Effects of Utilisation in Real-time on Electricity Capacity Assessments, investigates the operating regimes of thermal power plants in future generation portfolios with large amounts of variable renewable energy sources (VRE). The impacts of additional VRE and energy storage capacity on the operating profiles and flexibility of thermal power plans are investigated using a unit commitment and energy storage optimisation model.
Professor Gareth Harrison is Head of the School of Engineering and Bert Whittington Chair of Electrical Power Engineering at the University of Edinburgh. He holds a Bachelor’s degree and a Doctorate from the same institution.
