At Open Climate Fix we aim to use ML to address climate change. We do this by connecting researchers using the most recent ML learning models with industry practitioners. The first challenge we are addressing is Solar nowcasting. Solar energy is predicted to be the largest form of generation globally by 2040. and having accurate real-time forecasts is hugely important to balance the energy system in a carbon effective way. We are delivering this service for the grid operator in the UK, National Grid. This talk shows the ML techniques we used to tackle this problem.