Free calculator

Solar plant calculator

See what a larger solar project costs, earns and repays. Fill in the five main boxes. Everything else has sensible defaults.

Sun rising over solar panels
SolarYield · Solar plant report ·
1. Location
Pick from the list, or press Search to look up any place in the world. Live search needs an internet connection. Place search © OpenStreetMap contributors. Sunlight: NASA POWER.
2. Plant
1 MW = 1,000 kW. Use kW for smaller setups.
Planning average for the country. Replace it with your site value.
Share of sunlight that becomes usable power.
3. Costs
Filled from country defaults. Replace with your quotes.
4. Income
Year-1 selling price.
5. Financing
Use 0 if you pay everything yourself.
Whole years.
Tax is not included unless you enter a rate. Depreciation benefits are not modelled.

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See all results

These are planning estimates, not financial, legal or engineering advice. Real results depend on your site, quotes, tariff and local rules. Check the numbers with a qualified professional before you invest.

How these numbers are calculated
  • Sunlight comes from NASA POWER when you pick a place. Otherwise it is one planning average for the whole country, so replace it with your site value if you have one.
  • Costs and price per kWh start from country defaults. Replace them with real quotes and your actual selling price.
  • Output falls a little each year (yearly output loss). Upkeep and price rise by the yearly rates you set under Advanced assumptions.
  • Tax is only included if you enter a tax rate. Depreciation benefits are not modelled.
  • Money is shown in the currency of the country you chose.

Inputs used

Disclaimer: this report is a planning estimate, not financial, legal or engineering advice. Sunlight data: NASA POWER. Place search: OpenStreetMap contributors. Tax is included only if a rate was entered. Depreciation benefits are not modelled.