A home can save up to 40% on its annual electricity bill. The best way to achieve this is by using electric and hybrid vehicles, bicycles and electric scooters, energy efficient appliances and LED lighting systems, heating and hot water systems that use condensation or biomass boilers, efficient heat pumps, automatic systems to turn devices on and off, presence detection devices to turn on lighting, wall insulation systems, replacing windows, installing electric vehicle charging points and using solar panels for self-supply.