Estimate your annual income from a solar farm based on your land size and tariff rate.
Rooftop Solar Subsidy Estimator
Who Is This Calculator For?
This Solar Income Calculator is designed for:
- Farmers or landowners exploring solar farming as an alternate income stream
- Investors assessing returns from utility-scale solar projects
- Real estate owners with idle land near substations or highways
- Policy enthusiasts or researchers analyzing solar economics in India
- Startups and consultants building feasibility reports or proposals
Whether you’re considering a 1-acre plant or a 10 MW project, this tool offers a quick, realistic income estimate based on standard industry benchmarks.
How This Solar Income Calculator Works
This tool helps you estimate the annual income from installing a 1-acre solar farm in India based on real-world parameters like sunlight, cost, and tariff rates.
Key Assumptions and Logic:
| Parameter | Value / Logic | Notes |
|---|---|---|
| Land Area | 1 acre ≈ 4,047 sq.m | Industry standard |
| Installable Capacity | 1 MW (Direct Current) per acre | Approximation; actual may vary |
| CUF (Efficiency Factor) | ~19% | Higher in Rajasthan, lower in eastern states |
| Annual Generation | ~1.66 million kWh | Based on CUF × 8760 hrs/year |
| Tariff Rate | ₹2.5 – ₹4.0/kWh | Varies by PPA/state |
| Annual Income | Generation × Tariff | E.g., ₹49.8 lakh for ₹3/unit |
| CAPEX | ₹3.5–4.5 crore/MW | Utility-scale estimate |
| Payback Period | Cost ÷ Income | Usually 6–8 years |
Realism Note
This calculator gives a quick estimate based on general assumptions.
It does not include:
- Maintenance costs (₹6–8 lakh/year)
- Loan interest or financing
- Solar panel performance drop over time
Still, it offers a good first look at the potential income from a solar farm.
Source References:
- MNRE (Ministry of New and Renewable Energy)
- SECI Tariff Orders
- CERC guidelines on CUF and cost norms
- Real-world data from Rajasthan, Gujarat, Karnataka solar parks
Disclaimer:
This calculator is a quick estimation tool based on general industry assumptions:
- Annual solar generation per acre is assumed to be ~150,000 kWh.
- Tariff rate is a user-defined input; actual rates vary by state and Power Purchase Agreement (PPA).
- This does not include costs, maintenance, or location-specific factors like sunlight hours or grid availability.
Note: This tool is for educational purposes only. Actual returns may vary. Indiagraphs is not responsible for decisions made based on this estimate