PM Surya Ghar Subsidy Calculator

ALMM and inverter compliance: MNRE’s current ALMM page publishes solar PV module and cell lists, not an inverter list. Verify the inverter’s exact model documents and applicable scheme or DISCOM requirements separately.

The question every Indian homeowner types into a search engine before calling a vendor is not “should I go solar”, it is “how much subsidy will I actually get?” The PM Surya Ghar Muft Bijli Yojana central government scheme promises up to ₹78,000 in direct bank transfer, but that headline number applies only to a 3 kW system. If you are planning a 1 kW, 2 kW, 4 kW, or 5 kW installation, your exact pm surya ghar subsidy amount is different, and knowing the precise figure before you sign a vendor contract is the difference between a well-planned investment and an expensive surprise.

This post gives you the complete slab-by-slab subsidy calculator, a state-wise top-up table, group housing rules, the nuance around what happens above 3 kW, and a named framework (The PM Surya Ghar Subsidy Stack) that shows how central, state, and accelerated depreciation layers combine into your real financial picture.

Direct answer. The PM Surya Ghar subsidy amount is ₹30,000 per kW for the first 2 kW and ₹18,000 for the third kilowatt, giving a maximum central subsidy of ₹78,000 for any system 3 kW or above. The subsidy is capped at 3 kW per household. Systems above 3 kW receive the same ₹78,000; group housing societies receive ₹18,000 per kW capped at ₹50,000 per unit. State governments add top-ups in Gujarat, Maharashtra, Rajasthan, and UP.

The subsidy is disbursed as a one-time direct benefit transfer into your Aadhaar-linked bank account after your DISCOM verifies commissioning, it is not a discount at the point of purchase. Understanding that sequence matters enormously for cash-flow planning. The full five-step application process is covered in the PM Surya Ghar Muft Bijli Yojana complete guide; this post focuses exclusively on the rupee amounts, how they stack, and how to calculate your personal figure.

PM Surya Ghar Subsidy Amount Slab Table: Every System Size Calculated

The central subsidy structure has two slabs defined by MNRE, applied on a per-kilowatt basis to the first 3 kW of installed capacity. Every homeowner should know both slabs before sizing their system.

Slab 1: ₹30,000 per kW, applies to the first 2 kW of system capacity.

Slab 2: ₹18,000 per kW, applies to the third kilowatt only.

Above 3 kW: No additional central subsidy. The maximum is fixed at ₹78,000 regardless of whether you install a 4 kW, 6 kW, or 10 kW system.

The table below calculates the exact subsidy for every common residential system size, with the MNRE benchmark cost used for the central subsidy as a reference point. The benchmark is Rs 50,000 per kW for the first 2 kW and Rs 45,000 per kW beyond 2 kW (MNRE, 13 February 2024; residential only). It is a reference for the subsidy, not a quote: real installed prices vary by state, brand, and mounting structure complexity.

Payback depends on your tariff and self-consumption: divide the net cost you actually pay by your yearly bill savings (see the worked arithmetic in the PM Surya Ghar apply online guide and the payback guides linked below).

₹78,000. The maximum central subsidy under PM Surya Ghar Muft Bijli Yojana for any residential system of 3 kW or above, paid directly to the buyer’s Aadhaar-linked bank account after DISCOM commissioning verification. Source - MNRE PM Surya Ghar Portal, 2026.

Why 3 kW Is the Economic Sweet Spot

The 3 kW threshold is not arbitrary: it is where the subsidy stops rising. A 3 kW system in India’s median irradiance zone (4.5 to 5.5 peak sun hours per day) generates roughly 325 to 400 units per month (3 kW × 4.5 to 5.5 peak sun hours × 30 days × 0.8 performance ratio), enough to offset the consumption of a typical 2 to 3 BHK household including air conditioning.

Installing exactly 3 kW maximises the subsidy per rupee invested. Going to 4 kW or 5 kW is sensible if your consumption is higher, but the additional kilowatts receive no central subsidy, lengthening payback. Going below 3 kW leaves subsidy money on the table. For most urban homeowners with an electricity bill above ₹4,000 per month, 3 kW is the starting point for the financial case.

PM Surya Ghar Subsidy Amount for Group Housing and RWAs

Individual homeowners and apartment flat owners face different subsidy structures, and the group housing rules are where most flat owners get confused.

Individual Flat Owner Route

A flat owner who has a separate residential DISCOM connection and roof access (or a portion of the terrace) can apply individually at the standard residential slab: ₹30,000 per kW for the first 2 kW, ₹18,000 for the third, up to ₹78,000. The flat owner needs an NOC from the Resident Welfare Association confirming exclusive terrace access for the installation area. This is the most financially attractive route for flat owners.

Resident Welfare Association Common-Area Route

When the entire society applies collectively for a common-area system (powering lifts, common lighting, pumps, and shared loads) the subsidy structure changes:

• Rate: ₹18,000 per kW
• Per-unit cap: ₹50,000 per dwelling unit in the society
• Maximum system size eligible: Up to 500 kW per society

A 100-unit housing society with 100 flats can claim up to ₹50,00,000 (₹50 lakh) in central subsidy for a system of up to 500 kW. The lower per-kW rate reflects that common-area systems typically export a large proportion of their generation (export at the DISCOM’s feed-in tariff) rather than self-consuming at the full retail tariff, reducing the financial benefit relative to individual rooftop systems.

The detailed eligibility rules for each applicant category (including document requirements for NOC submissions) are covered in the PM Surya Ghar eligibility guide.

The PM Surya Ghar Subsidy Stack: Central + State + Depreciation Layers

Most homeowners calculate only the central ₹78,000 and stop there. The full financial picture has three distinct layers that stack on top of each other, and in states with an active top-up the combined benefit is higher than the central headline number.

The PM Surya Ghar Subsidy Stack

1. Central Government Layer: ₹30,000/kW (first 2 kW) + ₹18,000/kW (third kW) = up to ₹78,000. Funded by MNRE, disbursed directly to homeowner. This is the base layer available to every eligible residential applicant across all 28 states and 8 union territories.

2. State Government Top-Up Layer: Additional state-level subsidy disbursed through State Nodal Agencies or DISCOMs. Amounts vary by state and are revised by order. This layer is only available in states with active state solar policies, check your State Nodal Agency before assuming you qualify.

3. Accelerated Depreciation Layer: Applicable primarily to non-residential applicants (small businesses, professionals, shops with domestic-plus-commercial connections). Under Section 32 of the Income Tax Act, solar equipment qualifies for 40% accelerated depreciation in Year 1, reducing the effective tax outgo. For a 3 kW system at ₹1,50,000 gross, a taxpayer in the 30% bracket saves approximately ₹18,000 in the first year through depreciation alone. This layer does not apply to pure residential consumers, but is significant for self-employed homeowners who operate from home or have mixed-use properties.

Applying all three layers lowers the effective net cost further: for example, on the MNRE 3 kW benchmark of ₹1,45,000, the central ₹78,000 leaves ₹67,000 before any state top-up or depreciation benefit.

State-by-State Top-Up Subsidy Table (June 2026 Data)

State-level subsidies are the most frequently updated and most frequently misquoted part of the PM Surya Ghar financial picture. This guide quotes no state amounts: confirm the current figure and eligibility with your State Nodal Agency before finalising a project budget, and see the state subsidy guides on this site (Gujarat, Maharashtra, Rajasthan, Uttar Pradesh, Karnataka, Delhi).

For homeowners in states without a state top-up, the central ₹78,000 remains meaningful. On the MNRE 3 kW benchmark cost of ₹1,45,000, the central subsidy alone cuts the net investment to ₹67,000, and payback then depends on local electricity tariffs and net metering credit rates.

How to Calculate Your Exact PM Surya Ghar Subsidy Amount in 4 Steps

The calculation is straightforward once you know the slabs. Work through these four steps before calling any vendor.

Step 1: Determine Your Optimal System Size

Find the last 12 months of your electricity bills. Sum the units consumed and divide by 12 for your monthly average. Divide that monthly average by 120 (approximate units per kW per month in median Indian conditions) to get the kW capacity that offsets 100% of your consumption.

Round down to 3 kW if your roof area or sanctioned load constrains you, or if you prefer the faster payback of a smaller system with maximum subsidy efficiency.

Step 2: Apply the Slab Formula to Your Chosen Capacity

Use this formula:

• 1 kW: 1 × ₹30,000 = ₹30,000
• 2 kW: 2 × ₹30,000 = ₹60,000
• 3 kW: (2 × ₹30,000) + (1 × ₹18,000) = ₹78,000
• 4 kW or above: (2 × ₹30,000) + (1 × ₹18,000) = ₹78,000 (capped)

Step 3: Add Your State Top-Up (If Applicable)

Ask your State Nodal Agency for the current top-up order. Add the confirmed state top-up amount to your central subsidy figure. If your state has no top-up, use zero.

Example formula (3 kW): ₹78,000 central + the state top-up you have confirmed in writing = your combined subsidy.

Step 4: Calculate Net Cost and Payback

Subtract the combined subsidy from the vendor quote to get your net cost. Divide net cost by annual electricity bill savings to estimate payback years.

For a more granular payback analysis factoring in net metering export credits, fixed charges, and tariff escalation over 25 years, the PM Surya Ghar apply online guide includes a worked financial model with state-specific tariff inputs. You can also track exactly where your application sits at each stage between commissioning and the bank transfer, and EPC teams building the underlying system design often run the same 25-year cash flow at project level using solar financial modeling software.

Common Errors That Reduce or Cancel Your PM Surya Ghar Subsidy Amount

Errors in the application process are more common than DISCOM officers would prefer. The following mistakes are the ones most frequently cited in MNRE’s own grievance data and in reporting by Saur Energy.

• Installing before DISCOM feasibility approval: The DISCOM must approve your application before physical installation begins. Systems installed before approval cannot be commissioned under the scheme, and the subsidy is denied with no recourse. The portal must show green “feasibility approved” status before your vendor touches the roof.
• Wrong system size on the application versus actual installation: If your application states 2 kW and you install 3 kW (or vice versa), the DISCOM commissioning report will not match the portal application. The discrepancy triggers a rejection or extended review. Always amend the application if the system size changes.
• Vendor empanelment lapse: DISCOM empanelments are renewed periodically. A vendor who was empanelled when they gave you a quote may have lapsed by the time installation begins. Verify current empanelment on the portal on the day you sign the contract.
• Bank account mismatch: The account holder name, account number, and IFSC submitted on the portal must match the bank’s records exactly. A single character discrepancy (even an initial vs full name) causes the direct transfer to fail. The correction process adds 30–45 days.
• Missing NACH mandate: The portal requires a signed NACH mandate even though the subsidy is a one-time credit rather than a recurring payment. Skipping this form stalls disbursement at the final stage.
• Uploading illegible documents: Electricity bills must clearly show the consumer number. Property documents must be legible to the survey or flat number. Portal verification teams return blurry uploads without processing them.

For the full step-by-step application sequence and document checklist, read the PM Surya Ghar apply online complete guide, it covers every portal field and common rejection patterns in detail. If your application has already come back rejected, the PM Surya Ghar rejection reasons guide walks through the fix for each cause.

Net Metering and Your Monthly Saving After Subsidy

The subsidy is a one-time benefit. The ongoing financial return from your PM Surya Ghar installation comes from net metering, the billing mechanism through which your electricity account is credited for every unit your solar system exports to the grid.

A bidirectional smart meter records both the power you import from the grid and the power you export. At each billing cycle, the DISCOM subtracts export units from import units. You pay only for the net difference plus applicable fixed charges. In summer months with long daylight hours, a well-sized system often generates a surplus that carries forward as credit.

The financial arithmetic of net metering is straightforward:

Export tariffs in India range from ₹2.50 to ₹5.00 per unit depending on state and DISCOM, set by State Electricity Regulatory Commissions (SERCs). Because the export tariff is lower than the retail import tariff (typically ₹6 to ₹10 per unit), self-consuming solar generation is always more valuable than exporting it. Size your system and time high-consumption appliances (dishwasher, washing machine, water heating) to run during the solar generation window.

For a state-by-state breakdown of net metering tariffs, banking rules, and annual settlement processes, refer to the net metering India complete guide.

Should You Install 3 kW or Go Larger? The PM Surya Ghar Subsidy Decision Table

The central subsidy cap at 3 kW creates a natural decision point: install exactly 3 kW and maximise subsidy efficiency, or install a larger system to cover higher consumption and accept that the additional capacity is unsubsidised.

For households consuming above 600 units per month (typically 3 to 5 BHK homes with multiple air conditioners) consider evaluating whether a 5 kW on-grid system or a smaller hybrid system with battery storage makes more sense. The how to choose solar inverter for home India guide covers the full sizing decision including hybrid versus on-grid trade-offs, or run your own numbers through a solar cost and savings calculator before finalising system size.

Where Qbits Fits in Your PM Surya Ghar Calculation

The CAPEX model for PM Surya Ghar (where you own the system and receive the full ₹78,000 subsidy in your account) is strongly preferred over RESCO arrangements, because in RESCO contracts the subsidy typically accrues to the RESCO company, not the homeowner.

• Residential Solutions: Ask which equipment and project services are available, then verify the vendor, module/cell requirements, exact inverter documents and written scope for the application.

Contact Qbits with the site, load, equipment and document details relevant to this guide. Confirm the responsible party, deliverable, commercial scope and response time after submission.

Qbits’ public material does not state service coverage, response time or remedy for your location, so ask the Qbits team for the current written terms for your location and model.

PM Surya Ghar Subsidy Amount: Frequently Missed Nuances

Most online content about PM Surya Ghar covers the headline ₹78,000 and stops. The following nuances are the ones that catch homeowners off guard after they have already applied or installed.

The Subsidy Is Not a Discount: It Is a Post-Installation Reimbursement

Many homeowners assume the ₹78,000 is deducted from the vendor invoice at the time of purchase, similar to a consumer goods rebate. It is not. You pay the vendor the full system cost upfront (or via a loan), install the system, complete commissioning, upload documents to the portal, and then receive the subsidy into your bank account 30 to 90 days later. Budget for the full gross system cost before assuming the subsidy offsets it at the start.

Loans for PM Surya Ghar Are Available: and Structured Around the Subsidy

MNRE has partnered with SBI, Canara Bank, PNB, and Bank of Baroda to offer concessional home loans for PM Surya Ghar applicants at interest rates of 7% to 9%, below standard personal loan rates. These loans can be structured so the ₹78,000 subsidy repayment is applied directly to the loan principal when it arrives, reducing the effective loan tenure. Homeowners who cannot arrange upfront capital should explore this route before considering the RESCO model, which sacrifices the subsidy benefit.

Subsidy Is One Per Consumer Number: Not One Per Property

The PM Surya Ghar subsidy is attached to the electricity consumer number, not the property address. A property with two separate electricity connections (for example, a house with one domestic connection and one small commercial connection) can only claim the subsidy on the domestic connection. If a homeowner moves and gets a new electricity connection at a new address, they are eligible for the scheme again, since the new consumer number has no prior subsidy claim.

The 3 kW Cap Applies to Subsidised Capacity, Not Total Installed Capacity

There is no restriction on the size of system you install under PM Surya Ghar. A homeowner can install a 10 kW system and still claim ₹78,000 in central subsidy, they simply receive the same amount as a 3 kW installer. The restriction is on subsidised capacity, not permitted capacity. Systems above 3 kW benefit fully from net metering, DISCOM commissioning, and all operational scheme protections, they just do not receive additional central subsidy beyond the 3 kW slab.

For homeowners who are unsure whether their specific connection, roof, or consumption pattern qualifies under PM Surya Ghar’s detailed eligibility criteria, the PM Surya Ghar eligibility guide covers every edge case including tenants, joint ownership, NRI applicants, and agricultural connection holders.

The pm surya ghar subsidy amount calculation is not complex, but it rewards the homeowner who does it carefully before signing a vendor contract. Know your system size, apply the slab formula, stack your state top-up, verify ALMM compliance of every module and cell proposed, and budget for the post-installation reimbursement timing. Those five inputs give you the exact rupee figure that the scheme puts into your account, and the net cost number that determines how quickly your roof starts paying for itself.

The scheme runs to March 2027 under the current Ministry of New and Renewable Energy allocation. Every month of delay is a month of electricity bills that could have been offset. Calculate your number, verify your eligibility, and apply, the process, once understood, is manageable.