Solar ROI Calculator

Run a practical estimate for annual generation, revenue potential, payback period, and 10-year return using configurable assumptions.

Assumptions

Estimated outputs

Estimated capex
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Annual generation
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Annual gross revenue
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Annual O&M cost
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Annual net cash flow
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Simple payback
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10-year return multiple
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Methodology note: This calculator provides directional estimates based on user inputs. It does not account for taxes, debt structure, degradation, curtailment, or regulatory changes. Use project-level diligence before making investment decisions.

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Content credibility

  • Written by: Wattency Product Team
  • Reviewed by: Wattency Engineering and Domain Advisory
  • Last updated:
  • Editorial policy: See our Editorial Policy for sourcing and review standards.
  • Review cadence: Quarterly review or sooner when major product or policy changes are released.