Solar PV Installation in Looe, Cornwall (2.45kW)

In March 2011, PV Fit installed a 2.45kWp solar PV system for Mr Simpson nr Looe, Cornwall.

The 10 panel PV array is located on South facing slate roof. Mr Simpson’s array is surrounds 2 velux windows, and is above an existing evacuated tube solar thermal system.

Mr Simpson is now benefitting from the Governments tax free Feed-in Tariff (FIT) scheme which is offering them an annual return of 11.17% per year on their capital investment.

Mr Simpson says “I generated about 230 kWhrs from 3 -31 March. So far so good!”

Quick system facts

  • 2.45 kWp system
  • Slate roof fixing system which avoided drilling through the slates
  • Nedap PowerRouter solar inverter – includes free web monitoring which also allows us to monitor system performance remotely
  • Predicted system payback 8.95 years

Solar and FIT return

  • System size: 2.45 kW / 16.4m2
  • Annual output (SAP 2009): 2,103 kWh (units)
  • Annual FIT/Export/Savings: *£1,090
  • 25 year income/savings: *£27,261
  • Annual CO2 savings: 1,194 kg CO2
  • Solar panels 10 x Sharp 245Wp Monocrystalline
  • Inverter Nedap PowerRouter 3000W – with built in web monitoring system


  • PV FIT 2 years
  • Sharp solar panel 5 years. No less than 90% original panel rated output (Wp) for 10 year, through to no less than 80% for 25 years
  • Nedap inverter 5 years

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