1. Official Central Government Solar Subsidy Slabs
The PM Surya Ghar subsidy structure is tiered according to sanctioned connected load and system capacity. The central financial assistance (CFA) is fixed per kilowatt for individual domestic households:
| System Capacity | Monthly Generation | Central Subsidy (CFA) | Estimated Net Cost |
|---|---|---|---|
| 1 kW System | 120 – 130 Units / mo | ₹30,000 | ₹30,000 – ₹35,000 |
| 2 kW System | 240 – 260 Units / mo | ₹60,000 | ₹60,000 – ₹70,000 |
| 3 kW System | 360 – 400 Units / mo | ₹78,000 (Capped) | ₹1,00,000 – ₹1,15,000 |
| >3 kW to 10 kW | 400+ Units / mo | ₹78,000 (Maximum Cap) | Varies by system size |
| GHS / RWA (Common) | Lifts, Water Pumps, Lighting | ₹18,000 per kW | Capped at 500 kW capacity |
Note: Capacity above 3 kW does not receive additional central subsidy. For example, a 5 kW or 10 kW residential installation still receives the maximum ceiling of ₹78,000.
2. Additional State-Level Top-Up Subsidies
Several state governments offer supplemental subsidies funded directly from their state exchequers that stack on top of the MNRE central subsidy:
UP provides ₹15,000 per kW up to ₹30,000 maximum. Combined with the central subsidy, a 3 kW system in UP receives a total grant of ₹1,08,000.
Offers high net-metering settlement rates for surplus export (~₹2.25/unit banking credit) with fast-track DISCOM feeder approvals across DGVCL, MGVCL, PGVCL, and UGVCL.
Under Mahavitaran regulations, bi-directional net meter testing and installation charges are waived for domestic beneficiaries under 3 kW.
State-level interest subvention reduces public sector bank solar loans to an effective interest rate under 6.5% for rural and peri-urban applicants.
3. Real-World Solar Payback Period & 25-Year ROI
For an average residential household in India consuming 300 to 350 units/month with a bi-monthly electric bill of ₹5,000 (~₹2,500/month or ₹30,000 annually), installing a 3 kW on-grid solar system generates 360 to 400 kWh monthly, reducing the electricity bill to zero or just the fixed service charge:
4. Step-by-Step Application Process on the National Portal
All subsidy applications must be processed through the official central portal (pmsuryaghar.gov.in). Follow these 5 procedural steps:
- Registration & Profile Creation: Select your State, Electricity Distribution Company (DISCOM), and enter your Consumer Account Number found on your recent electricity bill. Confirm your mobile number via OTP.
- Technical Feasibility Approval (TFA): Apply for rooftop solar rooftop capacity. The local DISCOM evaluates transformer capacity on your distribution feeder and grants technical feasibility clearance online within 15 days.
- Vendor Selection & EPC Agreement: Choose an MNRE-empanelled registered solar vendor. The vendor will conduct a site survey, design the structural mounting for your roof, and verify Domestic Content Requirement (DCR) compliant solar modules.
- Installation & Net Metering: Once installation is complete, submit work completion details on the portal. The DISCOM conducts a site inspection, installs the bi-directional smart net meter, and issues an official Commissioning Certificate.
- Direct Benefit Transfer (DBT) Disbursement: Submit your bank account details and cancelled cheque on the portal. The subsidy grant is deposited directly into your bank account within 30 days of certificate verification.
5. Mandatory Technical Standards & Inverter Specifications
To ensure grid stability and eligibility for the central subsidy, installations must strictly satisfy the following technical prerequisites:
- DCR Modules Only: Solar photovoltaic cells and modules must be manufactured in India using domestic wafers/cells under ALMM (Approved List of Models and Manufacturers). Non-DCR imported panels are ineligible for subsidies.
- Grid-Tied Inverter Protection: Inverters must feature automatic anti-islanding disconnect protection (compliant with IEC 62116 / IS 16169) to protect DISCOM lineworkers during grid outages.
- Galvanized Iron Structure: Panel mounting structures (PMS) must withstand wind velocities up to 150 km/h and be elevated at least 300mm above finished roof level with adequate waterproofing.
- Dual Earthing & SPD: Dedicated copper or GI chemical earthing pits for AC side, DC side, and lightning arrestor with Class II Surge Protection Devices (SPD).
Calculate Your Custom Solar Sizing & Payback
Enter your monthly power bill to see your required kW rating, roof space, and exact subsidy amount.
Frequently Asked Questions (FAQs)
What is the maximum subsidy under PM Surya Ghar Muft Bijli Yojana? +
The central government provides a maximum Central Financial Assistance (CFA) subsidy of ₹78,000 for residential rooftop systems of 3 kW capacity or larger. For 1 kW systems, the subsidy is ₹30,000, and for 2 kW systems, it is ₹60,000. Several state governments, such as Uttar Pradesh, provide additional state top-ups up to ₹30,000, bringing total assistance to ₹1,08,000.
Can tenants apply for the rooftop solar subsidy? +
Tenants can apply only if the electricity meter is registered in their name or if the property owner signs a formal No Objection Certificate (NOC) granting rooftop installation rights. The bank account submitted for DBT subsidy credit must match the electricity connection holder's identity.
Do solar installations work during a power cut? +
Standard grid-tied on-grid solar systems shut down automatically during a grid power failure as a mandatory anti-islanding safety measure to protect linemen working on distribution wires. If you require power during load shedding, you must connect a hybrid solar inverter with battery storage, although battery costs are not subsidized.
Are collateral-free bank loans available for PM Surya Ghar installations? +
Yes. Leading nationalized banks (including State Bank of India, Punjab National Bank, Canara Bank, and Bank of Baroda) offer collateral-free rooftop solar loans up to ₹2 Lakhs for systems up to 3 kW at a concessional interest rate of ~7% (Repo Rate + 0.5%). The monthly EMI is structured to be lower than your monthly electricity bill savings.
How long does it take to receive the solar subsidy in the bank account? +
Once the vendor completes rooftop installation, the DISCOM installs the net bi-directional meter, and the commissioning certificate is uploaded to the National Portal (pmsuryaghar.gov.in), the subsidy is credited directly to the applicant's Aadhaar-linked bank account via DBT within 30 days.
How much rooftop area is required for a 3 kW solar system? +
A standard 3 kW residential rooftop solar installation requires approximately 280 to 300 square feet of shadow-free rooftop space. High-efficiency monocrystalline PERC or TOPCon panels generate approximately 4 to 4.5 kWh per kW daily in Indian climatic conditions.