Solar Panel Calculator
Calculate solar panel system cost, monthly savings, and payback period. Compare solar installation costs vs current electricity bills.
Solar Investment Analysis
How to use the solar panel calculator
Calculate solar panel system cost, monthly savings, and payback period. Compare solar installation costs vs current electricity bills. This calculator is designed to give you fast results first, then help you compare better options with advanced insights, scenario simulation, and a shareable summary.
Benefits of using this calculator
- Instant result with a human-readable explanation of what the number means.
- Scenario comparison so you can test an optimized plan and a longer-term case.
- Mobile-first design that keeps the calculation and result easy to revisit.
- Related tool suggestions so you can continue planning without starting over.
Solar Panel example
A smart way to use this page is to enter your current values first, then compare a slightly improved scenario and a longer-term scenario. That gives you a stronger decision framework than relying on only one output. For many users in India, this helps with quick budgeting, savings planning, health tracking, and household decision-making on mobile.
Related calculators
People also used
How it works: This calculator estimates the total solar investment cost, monthly generation, annual savings, and payback period. It accounts for inverter efficiency and panel degradation. Results help you understand if solar is financially viable for your property. Actual results depend on local sunlight, weather, and installation quality.
Frequently Asked Questions
What size solar system do I need?
Divide your monthly electricity bill by ₹1000. For example, ₹3000 bill needs ~3 kW system. A 1 kW system typically generates 120-150 units/month depending on location. Use this calculator to test different sizes.
How long is the payback period for solar?
Typically 5-8 years in India with current subsidy and panel costs. After payback, you get free electricity for 20+ years (panel lifespan). This calculator shows your specific payback period.
What's the average solar cost in India?
Costs vary: ₹70-120 per watt installed (residential). Use ₹100/watt as average estimate. Prices keep decreasing; check local solar providers for current rates. Government subsidies may reduce your cost further.
Does panel degradation matter?
Yes! Solar panels lose 0.5-0.7% efficiency yearly. After 25 years, panels still perform at ~80% capacity. This calculator accounts for degradation in its projections.
Is solar installation worth it?
For most homes with monthly bills above ₹2500, solar ROI is positive. Additional benefits: energy independence, government incentives, tax benefits, property value increase. Use this calculator plus local quotes to decide.
How do I use this solar panel calculator?
Enter the required values, review the instant result, and then use the updated insights and scenario cards to compare alternate cases before making a decision.