Everything you need to know about setting up a 4kW solar system.
*Prices may vary based on component quality and installation state.
Multiple ACs, Geysers, Heavy appliances like Induction Cooktops and Pumps. Ideal for large families.
At 4kW, you receive the maximum ₹78,000 PM Surya Ghar subsidy. Bigger systems don’t get more — making 4kW the best subsidy-per-rupee.
Covers 80–100% of a standard Indian household’s electricity — 1 AC, fridge, washer, lights and fans running comfortably.
Monthly savings of ₹3,000–4,500 means you recover your investment in just 3–4 years then 20+ years of free electricity.
Needs only 200–250 sq ft of shadow-free roof. Most 2BHK terraces accommodate this. Just 8–10 panels.
Where the money goes in a typical ₹2,00,000 on-grid 4kW rooftop system (before subsidy):
| Component | What you get | Approx. cost |
|---|---|---|
| Solar panels | 8 × 500–550W Mono PERC / TOPCon (DCR for subsidy) | ₹96,000 – ₹1,28,000 |
| On-grid inverter | 4kW string inverter | ₹15,000 – ₹22,000 |
| Mounting structure | GI / aluminium rooftop frame | ₹20,000 – ₹30,000 |
| Cables, earthing, protection | DC/AC cables, ACDB/DCDB, lightning arrestor | ₹10,000 – ₹15,000 |
| Installation & net meter | Labour, DISCOM paperwork, net meter | ₹10,000 – ₹20,000 |
| Type | Price before subsidy | Works in power cut? |
|---|---|---|
| 4kW on-grid | ₹2.00 – ₹2.40 lakh | No |
| 4kW hybrid + 5 kWh lithium battery | ₹2.60 – ₹3.20 lakh | Yes |
The ₹78,000 subsidy applies to both when installed by a registered vendor with DCR panels and net metering. Panel brand changes the price too: Waaree, Adani and Tata panels for 4kW cost roughly ₹1.00–₹1.52 lakh (panel price ₹25–₹38/W). Installers such as SolarSquare and local empanelled vendors quote complete systems, so compare at least three quotes. See the solar panel price list, solar inverter price list, or the free solar calculator.
Most states and UTs get the same ₹78,000 central subsidy (PM Surya Ghar) for a 4kW system. Hill, North-East and island states (e.g. Assam, Himachal Pradesh, Uttarakhand, Jammu and Kashmir, Sikkim) get 10% more — ₹85,800 — as shown in the table below. The only state top-up is in Uttar Pradesh, where an extra state-level subsidy (₹15,000/kW, up to ₹30,000) reduces the net cost further. Click your state below for its full subsidy guide, application steps, and local DISCOM contact.
Prices below are for a standard 4kW system. For your own roof and bill, our free solar calculator works out the right size, cost after subsidy and payback.
| State | DISCOM | Gross Price | Subsidy | Net Price |
|---|---|---|---|---|
| Andhra Pradesh | APEPDCL/APCPDCL | ₹200,000 | −₹78,000 | ₹122,000 |
| Arunachal Pradesh | Dept. of Power | ₹200,000 | −₹85,800 | ₹114,200 |
| Assam | APDCL | ₹200,000 | −₹85,800 | ₹114,200 |
| Bihar | NBPDCL/SBPDCL | ₹200,000 | −₹78,000 | ₹122,000 |
| Chandigarh | CPDL | ₹200,000 | −₹78,000 | ₹122,000 |
| Chhattisgarh | CSPDCL | ₹200,000 | −₹78,000 | ₹122,000 |
| Delhi | BSES/TPDDL | ₹200,000 | −₹78,000 | ₹122,000 |
| Goa | Goa Electricity Dept | ₹200,000 | −₹78,000 | ₹122,000 |
| Gujarat | GUVNL/DISCOMs | ₹200,000 | −₹78,000 | ₹122,000 |
| Haryana | DHBVN/UHBVN | ₹200,000 | −₹78,000 | ₹122,000 |
| Himachal Pradesh | HPSEBL | ₹200,000 | −₹85,800 | ₹114,200 |
| Jammu and Kashmir | JPDCL/KPDCL | ₹200,000 | −₹85,800 | ₹114,200 |
| Jharkhand | JBVNL | ₹200,000 | −₹78,000 | ₹122,000 |
| Karnataka | BESCOM/MESCOM/HESCOM | ₹200,000 | −₹78,000 | ₹122,000 |
| Kerala | KSEB | ₹200,000 | −₹78,000 | ₹122,000 |
| Madhya Pradesh | MPMKVVCL/MPWZ/MPEZ | ₹200,000 | −₹78,000 | ₹122,000 |
| Maharashtra | MSEDCL | ₹200,000 | −₹78,000 | ₹122,000 |
| Manipur | MSPDCL | ₹200,000 | −₹85,800 | ₹114,200 |
| Meghalaya | MeECL | ₹200,000 | −₹85,800 | ₹114,200 |
| Mizoram | Power & Electricity Dept | ₹200,000 | −₹85,800 | ₹114,200 |
| Nagaland | Dept. of Power | ₹200,000 | −₹85,800 | ₹114,200 |
| Odisha | TPCODL/TPNODL/TPWODL/TPSODL | ₹200,000 | −₹78,000 | ₹122,000 |
| Puducherry | PED (Electricity Dept) | ₹200,000 | −₹78,000 | ₹122,000 |
| Punjab | PSPCL | ₹200,000 | −₹78,000 | ₹122,000 |
| Rajasthan | JVVNL/AVVNL/JDVVNL | ₹200,000 | −₹78,000 | ₹122,000 |
| Sikkim | Energy & Power Dept | ₹200,000 | −₹85,800 | ₹114,200 |
| Tamil Nadu | TNPDCL (formerly TANGEDCO) | ₹200,000 | −₹78,000 | ₹122,000 |
| Telangana | TGSPDCL/TGNPDCL | ₹200,000 | −₹78,000 | ₹122,000 |
| Tripura | TSECL | ₹200,000 | −₹85,800 | ₹114,200 |
| Uttar Pradesh | PVVNL/MVVNL/DVVNL/PUVVNL | ₹200,000 | −₹108,000* | ₹92,000 |
| Uttarakhand | UPCL | ₹200,000 | −₹85,800 | ₹114,200 |
| West Bengal | WBSEDCL/CESC | ₹200,000 | −₹78,000 | ₹122,000 |
*Uttar Pradesh total subsidy = ₹78,000 central (PM Surya Ghar) + ₹30,000 state top-up. Prices are estimates — actual quotes vary by installer, brand, and roof condition. Get a free, no-obligation quote from verified local installers below.
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