PM Surya Ghar Subsidy & Rooftop Solar Calculator India
Use our online rooftop solar savings calculator to estimate your recommended plant capacity, official central government subsidy under PM Surya Ghar Muft Bijli Yojana (up to ₹78,000), monthly unit generation, and payback ROI.
Under the PM Surya Ghar: Muft Bijli Yojana, Indian residential households receive direct DBT central subsidies: ₹30,000 for 1 kW, ₹60,000 for 2 kW, and ₹78,000 for 3 kW or higher systems. A standard 3 kW residential rooftop solar plant generates ~360–420 kWh units monthly, eliminating electricity bills up to ~₹2,500/month with a complete capital payback period of 3.2 to 4.5 years.
Rooftop Solar ROI & Savings Estimator
See how much money you can save every month by installing rooftop solar panels with Central Government subsidy.
PM Surya Ghar Central Subsidy Structure & Rooftop Solar Savings
The Ministry of New and Renewable Energy (MNRE) provides direct bank transfer (DBT) central financial assistance for residential rooftop installations:
| System Capacity | Est. Daily Units | Roof Area Needed | MNRE Central Subsidy | Est. Monthly Bill Savings |
|---|---|---|---|---|
| 1 kW Plant | 4 – 5 kWh units | ~100 sq. ft. | ₹30,000 | ~₹900 – ₹1,200 |
| 2 kW Plant | 8 – 10 kWh units | ~200 sq. ft. | ₹60,000 | ~₹1,800 – ₹2,400 |
| 3 kW Plant | 12 – 15 kWh units | ~300 sq. ft. | ₹78,000 (Max) | ~₹2,800 – ₹3,800 |
| 5 kW+ Plant | 20 – 25 kWh units | ~500 sq. ft. | ₹78,000 (Max) | ~₹4,500 – ₹6,500 |
PM Surya Ghar Solar Scheme Frequently Asked Questions (FAQ)
How much subsidy is available under PM Surya Ghar Muft Bijli Yojana 2026?
Under the PM Surya Ghar scheme, residential households receive: ₹30,000 subsidy for a 1 kW system, ₹60,000 for a 2 kW system, and a maximum central subsidy of ₹78,000 for 3 kW and higher rooftop solar systems.
How many solar panels are needed to get a zero electricity bill?
To achieve a ₹0 electricity bill: 1) For ~150 units/month usage, you need a 1.5 kW system (3 to 4 panels of 540W). 2) For ~300 units/month usage (standard household with AC), you need a 3 kW system (5 to 6 panels of 540W). 3) For ~500 units/month usage, you need a 4 kW to 5 kW system (8 to 10 panels). With the ₹78,000 PM Surya Ghar subsidy, net monthly bills drop to zero.
Can I combine state subsidies (Gruha Jyothi / Punjab 300 units free) with rooftop solar?
Yes! State zero-bill subsidies (such as Karnataka Gruha Jyothi 200 units, Punjab 300 units free, Delhi 200 units subsidy) work synergistically with PM Surya Ghar solar. Net metering records your exported solar surplus to offset higher consumption during peak summer seasons.
How much rooftop space is required for a 3 kW solar plant?
A 3 kW rooftop solar system requires approximately 300 square feet (about 28 square meters) of shadow-free rooftop area with southern exposure.
How many units of electricity does a 3 kW solar plant generate daily in India?
In most Indian states with 300+ sunny days a year, a 3 kW rooftop solar system generates about 12 to 15 kWh units of electricity per day, translating to 360 to 450 units per month.
What is the payback period for residential rooftop solar in India?
With the ₹78,000 PM Surya Ghar subsidy and net metering, the net capital investment for a 3 kW system (approx. ₹1,45,000 – ₹78,000 = ₹67,000) is typically recovered in 2.5 to 3.5 years through saved electricity bills.
How does net metering work with solar panels in India?
A bi-directional net meter records both the power you draw from the grid and the excess solar energy you export back to the grid. At the end of each billing cycle, your DISCOM deducts exported solar units from your consumed units, billing only the net difference.
All 28 States & 8 Union Territories
Select your state or union territory to calculate your electricity bill with local tariff slabs and DISCOM rules.
States (28)
MSEDCL (Mahadiscom), Adani Electricity Mumbai, Tata Power Mumbai, BEST
TNPDCL (formerly TANGEDCO/TNEB)
BESCOM, MESCOM, HESCOM, GESCOM, CESC Mysore
KSEB (Kerala State Electricity Board)
UPPCL, PVVNL, MVVNL, DVVNL, PuVVNL, NPCL Noida
WBSEDCL, CESC Limited
PSPCL (Punjab State Power Corporation Limited)
APEPDCL, APSPDCL, APCPDCL
TGSPDCL (TSSPDCL), TGNPDCL (TSNPDCL)
DGVCL, MGVCL, PGVCL, UGVCL, Torrent Power
JVVNL Jaipur, AVVNL Ajmer, JdVVNL Jodhpur
NBPDCL (North Bihar), SBPDCL (South Bihar)
UHBVN (North Haryana), DHBVN (South Haryana)
MPPKVVCL Indore, MPMKVVCL Bhopal, MPPKVVCL Jabalpur
TPCODL, TPWODL, TPNODL, TPSODL (Tata Power Odisha)
APDCL (Assam Power Distribution Company Limited)
JBVNL, JUSCO Jamshedpur
CSPDCL (Chhattisgarh State Power Distribution Co. Ltd.)
Goa Electricity Department (GED)
HPSEBL (Himachal Pradesh State Electricity Board Ltd)
UPCL (Uttarakhand Power Corporation Limited)
Arunachal Pradesh Department of Power (APDP)
MSPDCL (Manipur State Power Distribution Co. Ltd.)
MePDCL (Meghalaya Power Distribution Corp. Ltd.)
Mizoram Power & Electricity Department (P&E)
Nagaland Department of Power (NOPD)
Sikkim Power Development Corporation (SPDC) / EPDS
TSECL (Tripura State Electricity Corporation Ltd)
Union Territories (8)
BSES Rajdhani (BRPL), BSES Yamuna (BYPL), Tata Power DDL (TPDDL), NDMC
JPDCL Jammu, KPDCL Kashmir
Chandigarh Electricity Department
Puducherry Electricity Department
Electricity Department A&N
DNHPDCL / DED Daman
Ladakh Power Development Department (LPDD)
Lakshadweep Electricity Department