Japan has one of the largest geothermal reserves in the world but currently has only developed 2.2% of the 23GW the country could possibly harness from its geology. The majority of potential geothermal sites are located inside Natural Parks so the Natural Parks Act has restricted development, which is why the utilisation of geothermal energy in Japan has been slow compared to Indonesia, the US and the Philippines. Although these restrictions were lifted following the Fukushima Disaster and 40 exploration projects are already under way. However the government still forecast that geothermal energy would only contribute around 1% to Japan’s energy needs by 2030, and are pushing nuclear energy to enable the reduction of fossil fuel usage. More should be done to invest in geothermal energy to utilise the power of the Earth’s energy to reduce Japan’s dependence on fossil fuels and nuclear energy, a step towards a more sustainable energy future.