The day subsidy-free renewable energy becomes cheaper than fossil fuels will mark the beginning of the end for dirty energy. What we may not realize is that day is closer than we think. According to new research, onshore wind and solar will both be viable without subsidies by 2025 in the UK. Meanwhile in the Netherlands, the world’s first subsidy-free wind farm will be built off the coast in 2022, and will generate enough energy to power 1.5 million homes. As more energy firms become willing to build renewable energy projects without subsidies, there’s little chance countries will opt to build new coal or gas power stations instead.