Over 800,000 homes in the UK have rooftop solar installed, and of that, 10,000 homes have battery storage systems available. These renewable energy systems are part of a nation-wide program that at its peak in the summer generate one-fifth of the energy produced in the UK. 

The popularity of the rooftop solar systems have been spurred by subsidies offered by the national government. The most successful program built the totals of cumulative capacity from near zero in April 2010 to nearly 2,500 megawatts in April 2016 when the subsidies ended. 

 The next improvement in the system may be offering subsidies to install systems of sharing excess energy generated in battery storage or local networks of energy delivery. With either, the local community may directly receive excess energy generated by one single home. Thereby reducing the overall need for electricity to be delivered a the central grid. 

There is a great risk of the few solar subsidies to be removed completely by the year 2019. While the overall participation in the rooftop solar program has real benefits, many of the participants are more interested in the novelty and reduction in environmental impact that can be born by widespread participation throughout the UK.