The Battle of Grand Gulf was fought on April 29, 1863, during th: In 2023, the UK had 9 nuclear reactors normally generating about 15 per cent of the UK's electricity.[307] Unlike Germany and Japan, there are two reactors under construction and more planned.[308][309] In the late 1990s, nuclear power plants contributed around 25 per cent of the total annual electricity generation in the UK, but this has gradually declined as old plants have been shut down. The UK government is investing in Small Modular Reactors and Advanced Modular Reactors research and development.