PM Surya Ghar Muft Bijli Yojana: Solar Rooftop Subsidy & Bill Savings Calculation
Everything you need to know about the central government's ₹78,000 rooftop solar subsidy. Calculate panel capacity, net metering benefits, and break-even timeline.
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The Government of India launched the ambitious PM Surya Ghar: Muft Bijli Yojana with a total outlay of ₹75,021 crore. The initiative aims to provide free electricity (up to 300 units per month) to 1 crore households by providing direct bank transfer (DBT) subsidies for rooftop solar installations.
1. Central Government Subsidy Structure (2026)
Under the revised national portal guidelines, subsidies are credited directly to your bank account within 30 days of DISCOM net-meter commissioning:
- 1 kW System: ₹30,000 central subsidy
- 2 kW System: ₹60,000 central subsidy
- 3 kW System & Above: ₹78,000 maximum central subsidy
(Some state governments, such as Uttar Pradesh and Gujarat, provide an additional state top-up subsidy of ₹10,000 to ₹30,000).
2. What Capacity Solar Plant Do You Need?
A high-efficiency rooftop solar panel in India produces approximately 4 to 4.5 units of electricity per day per 1 kW of installed capacity under clear sunlight:
| Average Monthly Consumption | Recommended Solar Capacity | Estimated Generation / Month | Net Bill Impact |
|---|---|---|---|
| 100 – 150 Units | 1 kW | 120 – 135 Units | Near ₹0 Energy Charge |
| 200 – 300 Units | 2 kW | 240 – 270 Units | Full Coverage of Domestic Slabs |
| 350 – 500 Units | 3 kW | 360 – 400 Units | Covers ACs and Multiple Fans |
3. Financial Breakdown & Return on Investment (3 kW Plant)
- Gross Installation Cost: ~₹1,80,000 (inclusive of bi-directional net meter, DCR panels, and inverter).
- PM Surya Ghar Subsidy: -₹78,000
- Net Cost to Consumer: ₹1,02,000
At an average tariff of ₹7.00 per unit, generating 380 units monthly saves: $Monthly Savings = 380 × ₹7.00 = ₹2,660 / \text{month}$ $Annual Savings = ₹2,660 × 12 = ₹31,920 / \text{year}$
$Break-even Period = \frac{₹1,02,000}{₹31,920} ≈ 3.2 \text{ Years!}$
Since solar panels carry a 25-year performance warranty, your system yields over 21 years of completely free electricity after breaking even!
Estimate your system size and ROI using our dedicated Solar Savings Calculator.
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Mehedi
Chief Editor & Lead Systems AdminSenior energy analyst leading the editorial team across all-India state electricity regulatory commission (SERC) tariff orders, subsidy updates, and billing algorithm audits.