The UK’s total installed energy generation capacity is about 106 GW, mainly dominated by combined cycle gas and coal-fired thermal power. Renewable energy sources account for about 29.3% producing some 99,330 GWh per year of electricity. With most ideal natural conditions, wind is the largest contributor to renewable energy production with around 50 TWh annually. The government is set to increase the share of renewables further to meet international climate goals and has, for instance, been setting out various incentives to develop additional small hydropower in the UK.
The UK is one of the world’s leaders in marine energy and wave power research and development. Estimates assume a combined feasible potential of around 20% of the UK’s current electricity needs, which corresponds to around 30–50 GW. There are numerous initiatives and feasibility studies supporting the deployment of this technology. Tidal lagoons could play an important role as part of the UK energy mix and renewable achievement, but discussions are on-going for this type of development.