PM Surya Ghar: Muft Bijli Yojana Explained — Subsidy, Eligibility and How to Apply

PM Surya Ghar: Muft Bijli Yojana is the central government's rooftop solar scheme, launched in February 2024 with a target of getting solar panels onto one crore households. The pitch is straightforward: install a rooftop solar system, get a capital subsidy that covers a meaningful chunk of the cost, and cut your electricity bill toward zero — for many small households, genuinely to zero, since the scheme is designed around exactly the consumption pattern of an average Indian home.

What problem this scheme is actually solving

Rooftop solar has been technically available in India for years, but adoption stayed low for a simple reason: the upfront cost of panels, inverter and installation was a real barrier for most households, even though the electricity savings over the system's life would eventually pay it back many times over. PM Surya Ghar attacks that upfront-cost barrier directly with a capital subsidy paid once at installation, plus a simplified, largely online application process through a single national portal, rather than the fragmented state-by-state solar subsidy schemes that existed before it.

How much of your bill this can actually offset

The scheme's own stated benchmark is that a typical household consuming up to 300 units of electricity a month can, with a correctly sized rooftop system, bring their monthly bill down to zero — because the system generates roughly what the household consumes, and any surplus exported to the grid is credited against future bills (net metering). Households consuming less can size a smaller system and still see a large percentage cut in their bill; households consuming meaningfully more than 300 units a month will still cut their bill substantially but won't necessarily zero it out without a proportionally larger system.

The subsidy structure

The subsidy is calculated per kilowatt (kW) of installed capacity, with a higher per-kW rate on the first slice of capacity and a lower rate beyond that, capped at a maximum for larger systems. As commonly published: roughly ₹30,000 per kW for the first 2 kW, and roughly ₹18,000 per kW for the next 1 kW, capping out around ₹78,000 total for systems of 3 kW or larger. These are the widely publicized reference figures, but subsidy amounts under any government scheme can be revised — always confirm the exact current subsidy for your proposed system size on the official portal (pmsuryaghar.gov.in) before finalising your installation, rather than budgeting against a number you saw somewhere else.

Eligibility

• Any Indian citizen who owns a residential property with a roof suitable for solar panel installation.
• The property should have a valid electricity connection in the applicant's name, since the subsidy and net-metering process are tied to that connection.
• A roof with reasonable, largely unshaded sun exposure — a heavily shaded roof (tall neighbouring buildings, large trees) may not generate enough to justify installation even with the subsidy, and a site survey by your chosen installer (a vendor empanelled under the scheme) will confirm actual suitability.
• This scheme is specifically for residential rooftop solar — commercial and industrial rooftop solar have separate, different schemes and subsidy structures.

Step-by-step: how to apply

1. Register on the official National Portal for Rooftop Solar (pmsuryaghar.gov.in) with your state, electricity distribution company (discom), consumer/electricity account number, and mobile number.
2. Submit the application form; your discom verifies your existing electricity connection details.
3. Once feasibility is approved by the discom, choose a vendor from the portal's list of empanelled installers registered for your discom area — you cannot use just any electrician or unregistered installer and still claim the subsidy.
4. The empanelled vendor conducts a site survey, proposes a system size and cost, and installs the system once you approve.
5. After installation, submit the plant details on the portal to apply for net metering, which your discom then inspects and approves.
6. Once net metering is approved and a commissioning certificate is generated through the portal, submit your bank account details for the subsidy — it's disbursed directly to your bank account within a defined timeframe after commissioning, not deducted from the installation cost upfront by the vendor.

Net metering — the part that determines your actual savings

Net metering is what lets any solar power your system generates beyond your immediate household consumption flow back into the grid, crediting your account — and it's what lets your system draw from the grid at night or on a heavily overcast day without needing a battery. Your discom installs a bidirectional meter that tracks both directions, and your bill is calculated on the net of what you drew versus what you exported over the billing cycle. Getting net metering approved and correctly installed is a genuinely necessary step, not a formality — a system that's physically installed but not yet net-metered either can't legally export to the grid yet or isn't being billed correctly for what it does export, so don't treat 'panels installed' as the finish line.

Do you need a battery?

Most residential installations under this scheme don't include a battery, relying instead on net metering to handle the day/night mismatch — you export surplus during sunny daylight hours and effectively draw it back (billed at net, not gross) at night. A battery adds meaningful cost and is generally only worth it for households specifically wanting backup power during grid outages, independent of the solar economics — it's an optional add-on to discuss with your installer, not a requirement of the scheme itself.

Loans for the remaining cost

The subsidy covers a meaningful portion of the cost but rarely all of it, and the scheme is designed to work alongside collateral-free bank loans for the remaining amount — several public and private banks offer solar rooftop loan products specifically referenced on the scheme's own portal, at rates and terms that vary by bank. If you're financing the balance, compare a few banks' solar loan terms rather than accepting your installer's first financing partner by default, the same way you'd compare any other loan.

Choosing the right system size

The temptation is to size a system around the installer's recommendation alone, but the more reliable starting point is your own last 12 months of electricity bills — average monthly consumption in units, adjusted for any obvious seasonal swing (summer air conditioning, for instance). A correctly sized system matches your typical consumption closely enough that net metering keeps your bill near zero without wildly overproducing surplus you're credited for at a lower rate than you'd have paid for the same units drawn from the grid. Oversizing "to be safe" mainly adds cost without proportionally more benefit once you're already covering your own typical usage; undersizing leaves a chunk of your bill unaddressed. A good installer will ask for your past bills and roof measurements before proposing a size — one who proposes a number without asking either is worth a second opinion.

State-level top-ups on top of the central subsidy

The central subsidy described above is a national floor, but several state governments have, at various points, added their own supplementary incentive on top of it for residents of that state — structured and funded entirely separately from the central scheme, with their own eligibility conditions that don't always mirror the central scheme's exactly. Whether a state top-up currently applies to you depends entirely on your specific state's own energy department policy at the time you apply, so it's worth checking with your state's renewable energy department or discom directly rather than assuming either that a top-up exists everywhere or that the central subsidy is the only support on offer.

Maintenance and warranty expectations

Rooftop solar is genuinely low-maintenance compared to most home systems, but it isn't zero-maintenance. Panels need occasional cleaning — dust and pollution buildup measurably reduces output over months without cleaning, more so in dry, dusty regions than in areas with regular rainfall. Empanelled vendors are typically required to provide a workmanship warranty on the installation itself (commonly around 5 years, though this varies by vendor) separate from the manufacturer's warranty on the panels and inverter (commonly much longer for panels, shorter for the inverter, which is usually the first component to need replacement). Get the specific warranty terms for your installation in writing at the time of purchase — "warranty included" without specifics is worth clarifying before you sign, not after something needs servicing.

Common mistakes people make with this scheme

• Using a vendor who isn't actually empanelled on the portal for your specific discom, which can disqualify the subsidy claim entirely even after installation.
• Oversizing the system based on an installer's optimistic sales pitch rather than your own actual monthly consumption from past electricity bills.
• Treating physical panel installation as the end of the process, when net metering approval and the portal-based commissioning certificate are what actually trigger the subsidy payout.
• Assuming the subsidy is deducted from the installation invoice upfront — it's typically paid directly to your bank account after commissioning, so budget for paying the vendor in full (or via your loan) and receiving the subsidy afterward.
• Not accounting for roof shading from nearby structures or trees that will only get worse in a few years as vegetation grows, which a proper site survey should flag before installation, not after.

Estimating your actual payback period

The subsidy shortens payback, but the number that actually matters to you is how long it takes your monthly bill savings to cover whatever you paid out of pocket after the subsidy (and after any loan interest, if you financed part of it). A rough estimate: take your average monthly bill before installation, subtract your expected post-installation bill (often close to zero for a correctly sized system under 300 units), and divide your net out-of-pocket cost by that monthly saving to get a payback period in months. Most well-sized residential systems under this scheme land somewhere in the range of a few years for payback, after which the system continues generating essentially free electricity for the remainder of its working life (commonly 20-25 years for the panels themselves) — but treat any specific number an installer quotes you as an estimate to sanity-check against your own bills, not a guarantee, since actual sunlight hours, panel degradation over time, and your own consumption pattern all move the real figure.

If your discom delays net metering approval

Net metering approval sits with your local discom, not the central scheme, and delays at this stage are a genuinely common complaint — the panels are installed and generating, but without an approved net meter, either the system can't legally export surplus yet, or informal arrangements around it are ambiguous. If your discom is taking noticeably longer than the timeline your installer quoted, the practical escalation path is the discom's own consumer grievance cell first, and the scheme's national helpline or portal-based grievance option if the discom-level escalation doesn't move things along — treating a stalled net-metering application as something to simply wait out indefinitely usually costs you months of the savings you're supposed to already be getting.

Is it worth it?

For a household with a reasonably sun-exposed roof and a genuine electricity bill worth optimising, the combination of a substantial capital subsidy, net metering, and the option of a collateral-free loan for the remainder makes the payback period for rooftop solar meaningfully shorter than it was before this scheme existed. The steps — registration, discom feasibility, empanelled-vendor installation, net metering, commissioning certificate, subsidy disbursement — are more involved than a single form, but each one is there for a specific reason (verifying you actually own a legitimate connection, ensuring quality installation, and correctly metering what you export), and the official portal is built to walk you through each stage in sequence.