Experts in: Energy Efficiency - Heating - Renewable Energy. Including: Boilers - Solar - Heat Pumps - Insulation - Ventilation Domestic Efficiency: If you are looking to save energy or upgrade your heating either at home or at work, Happy Energy can help. Happy Energy Solutions Ltd are experts in energy saving, heating and renewable energy and our staff have been responsible for helping to upgrade around 300,000 properties across Britain over the last 20 years. Cornwall and London based, Happy Energy can offer a wide range of options to reduce your energy bills and make your home warmer and more comfortable. We can also offer a range of finance options to help you spread the cost of the works and help you access a range of grants and other Government financial incentives.