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Unlock savings, find your ideal system size, and discover your government subsidy — all in seconds.
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Estimate Your Rooftop Solar Potential with Greenvolts Renewable Energy
Wondering how much money you could save every month by going solar? The Greenvolts Renewable Energy Solar Savings Calculator is a free, instant online tool that estimates your ideal rooftop solar system size, expected installation cost, applicable government subsidy, and long-term financial returns — all from a single input.
Our rooftop solar estimation tool is built specifically for Indian homeowners. It factors in your average monthly electricity bill to deliver personalised, accurate results in real-time. Whether your bill is ₹1,000 or ₹10,000 per month, the calculator adapts to show you exactly how much clean energy can do for your wallet.
Why Use the Greenvolts Renewable Energy Solar Savings Calculator?
Our smart estimation engine considers real-world parameters — average peak sunlight hours, current electricity tariffs, panel degradation over time, and the latest PM Surya Ghar Muft Bijli Yojana subsidy slabs — to give you a comprehensive solar report tailored to your home.
See how much you’ll save each month and across the entire 25-year lifespan of your solar panels.
Get a recommended system capacity (in kW) matched precisely to your electricity consumption pattern.
Know your gross cost, government subsidy, net investment, and the exact payback period before committing.
Each kW needs roughly 100 sq. ft. of shadow-free area — our calculator helps you check if your roof qualifies.
Discover how many tonnes of CO₂ you’ll offset and the equivalent number of trees your solar system represents every year.
The calculator accounts for net metering — meaning the excess power you send back to the grid further lowers your bill.
How the Greenvolts Renewable Energy Solar Calculator Works
Using the calculator takes less than 10 seconds:
- Slide to your monthly bill — Drag the slider to match your average electricity bill amount.
- View instant results — The calculator immediately shows your recommended system size, annual savings, payback period, cost breakdown (with subsidy deducted), and environmental impact.
Behind the scenes, this calculator uses real data sourced from the SolarSquare solar calculator API for the Pune, Maharashtra region. Cost, subsidy, and savings data are pre-fetched for bill amounts from ₹1,000 to ₹10,000 to estimate system size, savings, subsidy, and net cost accurately.
The result panel also calculates your payback period (typically 2–4 years), annual CO₂ offset (around 1.5 tonnes per kW), and trees-equivalent impact so you can see both the financial and environmental value of going solar.
Your Path to Solar
From estimation to installation — here’s how simple the process is.
Estimate Your Savings
Use the calculator above to check your investment, returns, and environmental impact in seconds.
Book a Free Consultation
Our solar experts visit your home at your convenience for a detailed roof assessment and custom design.
Quick & Safe Installation
Certified engineers handle end-to-end installation in a single day — clean, professional, and weather-proof.
Subsidy & Net Metering
We handle all paperwork — DISCOM approvals, net meter setup, and government subsidy processing — so you don’t have to.
Ready to Make the Switch?
The Greenvolts Renewable Energy Solar Calculator is designed for accuracy, speed, and simplicity. But a calculator is just the beginning — the next step is a free, no-obligation site survey where our engineers design a system perfectly matched to your roof, shading conditions, and energy needs.
Your journey towards lower bills, energy independence, and a greener planet starts right here. Try the calculator above, then book your free consultation and let Greenvolts Renewable Energy turn your rooftop into a power station.
Frequently Asked Questions
How do I apply for the Govt. Subsidy?
Under the PM Surya Ghar Muft Bijli Yojana, we assist you throughout the entire process via the National Portal. Once your setup is commissioned and inspected, the subsidy is credited directly to your bank account — typically within 30 days.
Do panels generate electricity during monsoon or cloudy days?
Yes. Modern solar panels are designed to capture diffused and ambient light, so they continue generating power even in overcast or rainy conditions — just at a somewhat reduced output compared to bright sunny days.
How much roof space do I need for solar panels?
A general rule is approximately 100 sq. ft. of shadow-free rooftop area per 1 kW of system capacity. For example, a 3 kW system would need around 300 sq. ft. of unobstructed space. Our engineers will verify this during the free site visit.
What is Net Metering and how does it benefit me?
Net metering is a billing arrangement where excess electricity your solar panels produce is sent back to the grid. Your electricity meter effectively runs backward for that surplus, giving you credits that offset future bills. This means you only pay for the net difference between what you consume and what you generate.
How long do solar panels last?
High-quality solar panels come with a 25-year performance warranty and can continue producing electricity well beyond that. Annual degradation is typically under 0.5%, meaning your panels will still be generating over 87% of their original capacity after 25 years.