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Solar Calculator India

Estimate your solar savings, subsidy and environmental impact.

Calculator Inputs

2,000 ₹
500 sqft
3 kW
5 hrs

Calculation Results

How It Works

1

Set Property Details

Select whether this is for your home or business. Choose "On-Grid" for maximum savings with net metering.

2

Input Usage

Use the slider to enter your average monthly electricity bill or available roof area.

3

Get Instant Estimation

Click "Estimate Potential" to see your system size, cost, subsidy (PM Surya Ghar), and ROI.

"India has set a target of 500 GW of renewable energy capacity by 2030. Be a part of the revolution!"

Why Go Solar in India?

Save Money

Drastically reduce or eliminate your monthly electricity bills. With rising tariffs, solar locks in your energy price for 25 years.

Government Support

Benefit from the PM Surya Ghar subsidy scheme and potential state-level incentives that cover a significant portion of the upfront cost.

Energy Independence

Generate your own clean power. Reduce reliance on the grid and protect yourself from future price hikes and power outages (with hybrid systems).

Solar Installation Process

1

Site Survey

Expert assessment of roof area & shadow analysis.

2

System Design

Customized layout for maximum efficiency.

3

Installation

Mounting structure, panels, and inverter setup.

4

Net Metering

Grid connection & meter installation by DISCOM.

PM Surya Ghar: Muft Bijli Yojana Explained

The Government of India's flagship scheme, PM Surya Ghar: Muft Bijli Yojana, aims to provide free electricity to households. Under this scheme, residential consumers receive a direct subsidy for installing rooftop solar plants.

  • Up to 2 kW: ₹30,000 per kW subsidy.
  • Additional 1 kW (Total 3 kW): ₹18,000 for the 3rd kW.
  • Max Subsidy: Capped at ₹78,000 for systems 3 kW and above.

System Types: On-Grid vs. Off-Grid

On-Grid (Grid-Tied)

  • Connected to the utility grid.
  • Net Metering: Export excess power to the grid for credits.
  • Most cost-effective solution (Lowest per-unit cost).
  • Does not work during grid power cuts (safety requirement).

Off-Grid (Battery Based)

  • Completely independent of the grid.
  • Requires batteries to store power for night use.
  • Ideal for remote areas with no grid access.
  • Significantly more expensive due to battery maintenance.

Frequently Asked Questions

How much roof area do I need?
You typically need about 60 square feet (approx. 6 sq meters) of shadow-free roof area for every 1 kW of solar panel capacity.
What is Net Metering?
Net Metering is a billing mechanism that allows you to dump excess electricity generated by your solar plant into the grid. The electricity utility (DISCOM) gives you credits for this export, which adjusts against your night-time consumption.
What is the ROI period?
For most residential On-Grid systems in India, the payback period is between 3 to 5 years. Since solar panels last for 25+ years, you enjoy free electricity for over two decades.
Does it require maintenance?
Solar systems require very little maintenance. The main task is cleaning the panels every 15-30 days to remove dust and bird droppings, which ensures maximum efficiency. There are no moving parts to repair.
Subsidy for Commercial?
The central PM Surya Ghar subsidy is strictly for residential consumers. Commercial entities can avail tax benefits like Accelerated Depreciation (AD) of 40% per year.
How long do panels last?
Tier-1 solar panels typically come with a 25-year performance warranty. Even after 25 years, they continue to generate electricity at about 80% of their original capacity.