Please ensure the customer has been told the rough install costs below. Costs are indicative but should give customers a good idea: – Solar PV – £6000-£8000 for a standard array, £9,000 for an optimised array – Air source – £10,000-£15,000 depending on property size and nature of the install (less 7.5K from Boiler Upgrade Scheme – Ground source – £20,000 to £35,000 depending on the property size, if groundworks included. – Battery storage – £4,500 to £11,000 depending on size and Brand. – Solar Thermal – £4,000 to £7,000 depending on system size and nature of the installation. – EV Charging – £1200 – £1800 typically.