We buy electricity from Stockethill Energy Centre in Aberdeenshire, which supplies 270 homes with heat from a combined heat and power unit. Some of the electricity generated on site is used to run heat distribution pumps, but the majority of it is sold to us. Income from electricity is used to subsidise the cost of heat for the residents at Stockethill. THey have seen their heating bills halve since the scheme was introduced. The very small building at the front of the four blocks of flats is where the Combined Heat and Power Plant is stored.