Solar4Schools develops an automatic stand-alone solar energy system for schools in developing countries who are struggling with access to affordable and clean energy. Using mobile payments and IoT technology the solar energy system is initially financed by selling phone charger services to the wider community. This subsequently provides an additional income source for the school. Furthermore, the Solar4Schools system enables schools to stop using kerosene and candles, so it is cleaner and enable schools to reduce carbon emission by 91% per year. The community will also benefit by not having to walk 2-10km to the town for phone charging, but rather go to the school, which in turn will place schools at the centre of the community. Our starting point is Kenya which is a country with an enormous potential for investment in solar energy. While its use in the country is increasing, at present it is problematic. This is because most solar products in the country are designed for homes.