To combat climate change, governments have pledged to dramatically reduce their dependency on fossil fuels and curb their greenhouse gas emissions. There are extensive renewable energy sites now active all over Europe. Recent figures show that Norway now gets more than 45% of its total electricity needs from hydroelectric power. Germany has over 65GW of wind power capacity (onshore and offshore combined) and this constitutes around 30% of the country’s electricity usage. Italy and Spain have 22.1GW and 14.6GW of solar power capacity respectively. To supplement the more expansive renewable operations, home-based generation will help to contribute to a more sustainable future. Through this, households will be able to sell electricity back to the grid. There are also opportunities for them to support grid balancing, so energy can be stored during times of peak renewable output, then drawn from when grid demand is at its greatest.