Sun Switch is brought to you by National Energy Services, a well-established energy efficiency organisation based at the National Energy Centre in Milton Keynes with a team of solar PV system designers in locations around the country.All our system designers are fully trained and Government accredited energy assessors. We're 51% owned by the National Energy Foundation, an independent educational charity set up in 1988.By installing our Sun Switch system, you will be able to get paid for the electricity you produce at rates that are guaranteed for 25 years, index linked, and tax free. You will also dramatically reduce your carbon footprint.