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Solar Savings Calculator

Use this solar savings calculator to check your exact return before installing solar. Enter your system size and electricity details to get your payback year, 10-year and 25-year ROI, and total lifetime profit — with annual price escalation factored in.

Payback year25-year ROICompounding escalationSubsidy deductedInstant results

System Details

Enter your solar system size and electricity details to calculate your exact savings and ROI.

Don't know your size? Use the Solar Calculator

India average ₹6–₹10/unit

Historical average ~5–8%/year

Property Type

What Does This Calculator Show You?

Check every important result before you invest in a solar energy system.

Payback Period

See how many years it takes to recover your investment through electricity savings. Most users see results in 3 to 7 years. For a more detailed estimate, consider speaking with our solar energy performance consultancy team.

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10-Year & 25-Year ROI

See how much return your system generates over time. Includes annual electricity price escalation, making results more realistic and comparable to other investments.

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Investment Breakdown

Full cost details in one place — total system cost, PM Surya Ghar subsidy, and your actual final investment after deduction.

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Lifetime Profit

Total cumulative savings over 25 years minus your net investment. This is your real earning from solar — the actual rupee profit, not just bill savings.

Solar Payback Period in India

Most residential solar systems recover their cost in about 3 to 7 years after the PM Surya Ghar subsidy. Your exact payback depends on your electricity rate — higher rates give faster returns, while lower-tariff states take more time.

For example, users paying ₹9–₹12/unit (common in Maharashtra, Tamil Nadu, and Karnataka) often recover their cost in 3 to 5 years. In lower-tariff states, it may take 6 to 8 years.

Electricity prices also increase every year. A 5–8% annual rise helps you recover your investment faster and grow your savings over time. This is exactly why using a solar ROI calculator before installation gives you a clear, realistic savings estimate.

Why Electricity Price Increase Matters

Electricity prices rise every year in India — on average, by 5% to 8% annually. This directly impacts your long-term solar savings. As grid electricity becomes more expensive, your solar savings grow faster. Solar gives you stable power costs while utility rates keep climbing.

For example, a 3 kW system saving ₹2,100 per month today can save over ₹50,000 per year by year 10. By year 20, yearly savings can cross ₹1 lakh — because every year, you avoid paying an increasingly expensive electricity bill.

This compounding effect is why long-term returns of 250% to 400% are realistic — not inflated — for solar systems in India.

Who Should Use This Solar Savings Calculator?

This solar power savings calculator is built for anyone seriously evaluating solar before committing to an installation:

  • Homeowners planning their first solar installation
  • Business owners comparing solar cost vs savings
  • Property investors evaluating rooftop solar returns
  • Solar buyers who want accurate ROI numbers before vendor meetings

If you are still planning your system size, start with the solar calculator before checking your savings here.

Your Solar Installation Journey

Switching to solar is simple when you follow the right steps. Here's your complete journey from calculation to savings.

01

Run the solar calculator to find your system size

02

Check your savings with this solar savings calculator

03

Get free solar consultancy from our experts

04

Schedule your free site survey

05

Install your solar panels and start saving

Don't know your system size yet?

Use the Solar System Calculator first — enter your monthly bill and get the right kW suggestion in 30 seconds.

Solar Panel Cost Calculator →

Frequently Asked Questions

What is the payback period for solar panels in India?
Most residential systems recover their cost in 3–7 years after the PM Surya Ghar subsidy. Users in higher-tariff states like Maharashtra, Tamil Nadu, and Karnataka often see payback in 3–5 years.
Does this calculator account for the PM Surya Ghar subsidy?
Yes. The calculator automatically applies the central government subsidy based on your system size and uses the net investment after subsidy for all payback and ROI calculations.
What annual electricity price increase should I use?
India's electricity tariffs have increased at roughly 5–8% per year historically. Use 5% for a conservative estimate and 7–8% for a realistic one.
Is a 25-year solar ROI realistic?
Yes. Tier-1 solar panels are rated for 25+ years with less than 0.5% annual efficiency degradation. String inverters typically need replacement around year 10–12 (₹15,000–₹40,000), which this calculator does not include — so actual returns may be slightly lower.
What is not included in this calculator?
Inverter replacement cost (~year 10), annual O&M expenses (₹2,000–₹5,000/year), state-level additional subsidies, and net-metering income. These factors generally improve the overall financial picture.