» Economics
What are the cash flows, payback time and returns on photovolatic modules?
Technical
  • Capacity: 1kW installed
  • Location: Exeter (UK) ~1,400kWh/m2
  • Site: Roof, optimal slope facing south
  • Module: crystalline Si
  • Degradation 0.5% pa
Revenues & Cost
  • UK Feed-in tariff £/kWh0.361, 25 years, export tariff £/kWh 0.03
  • Installation cost £3,500
  • Operating: £210 pa
  • Inflation 2% pa (for tariff and operating cost)
Long payback time, but good annual return

Payback Time: 9 - 10 years

Internal rate of return: ~ 10% pa

 

Values vary with location, orientation of modules, technology choices, size of installation as well as actual installation and operating costs. For more information please contact us.


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What returns can you expect for a given tariff and capital cost?
Technical
  • Energy yield: 950kWh/kWp per annum (typical for locations in Western Europe)
  • Degradation 0.5% pa
Revenues & Cost
  • 25 year feed-in tariff
  • Operating: 0.5% of initial capital costs per annum
  • No inflation adjustment
  • Savings from own use not taken into account.
Attractive returns over wide ranges

Decreasing feed-in tariffs will force capital costs down in order to achieve the same internal rate of return for the investor。

 

For more information on economics of pv panels, please contact us.

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