Solar Plant Income Calculator for Iran

Estimate how much electricity a grid-connected home solar plant produces in a year and how much it earns when sold under Iran’s guaranteed purchase contract.

Yearly production–
Yearly income–
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About the numbers

  • Yield: around 1,600–1,750 kWh per kW per year in Fars province with a good, unshaded south-facing roof; less in cloudier or more northern regions.
  • Price: 5,845 toman per kWh is the guaranteed purchase rate for home plants announced by SATBA (Iran’s renewable energy organisation) in August 2026. The contract runs for 20 years.
  • Loan: a low-interest loan of up to 400 million toman (14 %, 60 months) is available for home plants up to 10 kW that have a purchase contract.
  • These are estimates for planning, not a guarantee; real output depends on shading, dust, panel angle and equipment.

Detailed guides (Persian): home solar power plant · solar plant loan.

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