Including the closely related term renewable.
…), First time heating (2,000), Heating Controls (4,000), Loft Insulation <100mm (2,000), Air Source Heat Pump (or other renewables, 2,000), Replacement Boiler (12,000, Room in Roof insulation (1,500), Solar PV (8,000), Solid Wall Insulation (5,000), Storage Heater replacement (500), Underfloor Insulation (15,000), Party Wall Insulation (2,500). Retrofitting houses to improve insulation standards…