Case Study

This case study demonstrates the return on investment based on a 12 Solar Panel system using 240 watt panels.

By taking into consideration the Feed-in-Tariffs and export tariffs, combined with SAP generation ‘data’ we are able to calculate the likely financial profit over the next 25 years as £43,378.

12 Solar Panel System

Please note that these figures are only assumptions based on electricity costs of 14 pence (inc VAT) and an RPI increase of 8.1%.

Premium 240 Watt Panels - Assumptions

  • Cashback (FIT) revenue starts at 21 pence per kWh.
  • Export based on 3 pence per unit.
  • Initial electricity costs of 14 pence (inc VAT).
  • Unit cost of electricity rises by 8.1% average.
  • Manufacturers data on PV yield has been factored in.
  • Figures based on an average power tolerance of +9%

Price List and ROI Calculations

  • Installed cost £9,575
  • Predicted Generation (kWh / year) 2694
  • Year 1 £983 - ROI 10%
  • Year 5 £1,228 - ROI 13%
  • Year 10 £1,629 - ROI 17%
  • Year 25 £3,920 - ROI 41%
  • TOTAL PROFIT (after 25 years) £43,378