What Is Net Metering in Solar? Meaning, Process & Rules in India (2026)
If you’re putting solar panels on your roof, net metering is the one piece of paperwork that decides whether you actually save money or generate power you can’t use.
It’s the billing arrangement that lets a DISCOM (your electricity distribution company) credit you for the extra solar power you send back to the grid. Get it right, and your payback period can shrink by years. Get it wrong ( or skip it), and your solar investment underperforms.
I’ve broken this down the way I wish someone had explained it to me: what net metering actually means, how the math works with real numbers, how it’s different from gross metering and net billing, and exactly how to apply for it in 2026.
Quick answer: Net metering is a billing system for grid-connected (on-grid) solar systems. A bi-directional meter tracks the electricity you draw from the grid and the electricity your solar panels export to it. At the end of the billing cycle, you’re charged only for the net difference between the two, not the full amount you consumed.
What Is Net Metering?
Net metering is a billing mechanism for on-grid solar power systems. It measures the difference between the electricity you import from the grid and the electricity your solar system exports to it.
Think of it like a running tab, not a cash sale. Your solar panels feed your home first. Whatever you don’t use flows out to the grid, and the utility credits you for it. That credit is then set off against the power you draw back at night or on cloudy days.
The device that makes this possible is called a net meter, or bi-directional meter. Unlike a normal meter that only counts electricity flowing in, a net meter tracks flow in both directions and calculates the difference automatically.
Your DISCOM installs a net meter after your solar system passes inspection. You can’t do this yourself, and you can’t skip it. Without one, you have no legal way to get billing credit for the power you send to the grid, even if your inverter is technically capable of exporting it.
One thing worth being clear about upfront: net metering only applies to grid-connected (on-grid) solar systems. If you’re running an off-grid system with batteries, this entire billing mechanism doesn’t apply to you. Here you’re storing and using your own power instead of trading it with the grid.
Related: How Many Units of Electricity Are Generated by a 3-kW Solar Panel System?
How Net Metering Works – With a Real Example
Here’s the sequence, step by step:
- Your solar panels generate DC electricity during the day.
- Your inverter converts it into usable AC power.
- That power supplies your home or office first. Lights, fans, appliances- everything running at that moment.
- If your panels are producing more than you’re using, the surplus flows out through the net meter and into the grid.
- At night, or whenever your consumption exceeds your generation, you draw power back from the grid as usual.
- The net meter logs both directions, and your DISCOM bills you only for the difference.
Worked example: Say your rooftop system exports 350 units (kWh) to the grid over a billing cycle, and you import 120 units back from the grid during the same period.
Your net energy is 350 − 120 = 230 units in your favour. Depending on your state’s policy, this typically shows up as a bill credit carried into future cycles, not a cash payout. Most DISCOMs in India don’t pay you cash for net export; they adjust it against future bills or, in some states, settle it annually at a lower rate.
If you want to track this in real time instead of waiting for your monthly bill, a smart home energy monitor (the kind that clips onto your main line and syncs to an app) lets you watch your import/export numbers daily instead of getting surprised at billing time.
This is also why net metering works so well with typical Indian household usage patterns. Solar generation peaks around noon, but most home electricity use peaks in the morning and evening. Net metering lets you “bank” your midday surplus and draw it down later, without needing a battery.
Related: AC Solar Panels: Things You Should Know
Net Metering vs Gross Metering vs Net Billing
This is the comparison most articles on this topic skip, and it’s usually the actual reason people end up confused about their bill. India has three distinct solar billing models, and DISCOMs don’t always let you choose freely between them.
| Feature | Net Metering | Gross Metering | Net Billing |
|---|---|---|---|
| How self-generated power is used | You consume your own solar power first; only surplus is exported | 100% of solar output is exported to the grid; you buy back all your usage separately | You consume solar power first, like net metering, but import/export are priced differently |
| Meter type | Single bi-directional meter | Two separate meters (import + export) | Bi-directional meter, but tariffs differ by direction |
| Export compensation | Same rate as your retail tariff (1:1 credit) | Fixed feed-in tariff, usually lower than retail rate | Feed-in tariff for exports, separate (often higher) retail rate for imports |
| Best suited for | Homes and small businesses using most of their own power | Large-scale producers selling power as a business | Consumers past net metering’s capacity cap |
| Typical availability in India | Small to mid systems (varies by state, often up to 500 kW–1 MW) | Larger commercial/industrial systems | Increasingly used once net metering caps are exceeded |
Net metering is the most financially rewarding option for a typical home, because your exported units are valued the same as the units you’d otherwise buy. Gross and net billing exist mainly for larger systems, or for states phasing out full 1:1 net metering to protect DISCOM revenue.
If you’re a homeowner installing a rooftop system under 10 kW, you’ll almost always be on straightforward net metering. Larger commercial installations are more likely to hit gross metering or net billing rules, depending on your state.
Net Metering Rules in India (2026)
Net metering in India isn’t governed by one single national rulebook. It operates under a national framework, but each state’s electricity regulator (SERC) and DISCOM set the specifics.
At the national level, the Electricity (Promoting Renewable Energy through Green Energy Open Access) Rules, 2022 make net metering a legal entitlement for eligible rooftop solar consumers, not just a DISCOM courtesy.
If your DISCOM delays your net meter installation without a valid reason, you have grounds to escalate the complaint to your State Electricity Regulatory Commission.
Where states differ is in capacity limits, export tariffs, and consumer eligibility. A few examples of how this plays out:
- Some states allow net metering for residential systems up to 500 kW, with separate (often lower) caps for commercial connections.
- Other states have raised their net metering ceiling well into the megawatt range for all consumer categories, making them more solar-friendly overall.
- A few states require systems above a certain size to move to gross metering or net billing instead of net metering.
Because these limits and export rates genuinely change year to year, always confirm the current numbers for your specific state and DISCOM before finalising your system size. Don’t rely on a number you read in a blog post, including this one.
Related: Is It Really Worth Buying a Three-Phase Inverter?
How to Apply for Net Metering – Step by Step
The application itself is more procedural than complicated. Here’s how it typically runs in 2026:
- Register on the national rooftop solar portal. Most applications now start on the PM Surya Ghar Muft Bijli Yojana national portal, which routes your request to the correct DISCOM based on your state and connection.
- Choose an empanelled installer. Your vendor must be registered with your DISCOM or the national portal. This is non-negotiable if you want subsidy eligibility later.
- Submit your application with full documentation. Incomplete document sets are the single biggest cause of delay, so get everything ready before you submit rather than after.
- Technical feasibility check. For systems up to 10 kW under PM Surya Ghar, this step is largely automatic. For larger systems, the DISCOM reviews your transformer capacity and site load, which can take up to 30 days.
- Installation. Once approved, your installer sets up the panels, inverter, and wiring to the DISCOM’s technical standards.
- Inspection and commissioning. A DISCOM engineer visits to verify panel wattage, earthing, isolators, and safety compliance before signing off.
- Net meter installation and agreement signing. The DISCOM installs the bi-directional meter, and you sign a net metering agreement, increasingly done digitally via OTP in many states.
End to end, this usually takes anywhere from 15 days to about 6–8 weeks, depending on your DISCOM’s backlog and how complete your documents were on the first try.
Documents You’ll Need
Keep these ready before you apply, since requirements are broadly similar across most DISCOMs:
- Identity proof (Aadhaar is the most commonly accepted)
- Proof of property ownership or a No Objection Certificate from your landlord/society
- A recent electricity bill copy, matching the name on your application
- Single-line diagram of your solar installation
- Equipment invoices and ALMM (Approved List of Models and Manufacturers) certificates for your panels
- Installation completion report and system photographs from your installer
A quick but important detail: the name on your identity proof must exactly match the name on your electricity bill. Even a missing middle name has caused rejections, so double-check this before you submit.
Net Metering and the PM Surya Ghar Subsidy
If you’re installing solar under the PM Surya Ghar Muft Bijli Yojana ( India’s central rooftop solar subsidy scheme), net metering isn’t optional. It’s a mandatory step in the subsidy disbursement chain.
Here’s how the two connect: once your DISCOM issues a commissioning certificate (which happens right after your net meter is installed), that certificate triggers your subsidy request on the national portal. No commissioning certificate means no subsidy transfer, and no commissioning certificate happens without net metering.
Subsidy amounts under the scheme currently run up to roughly ₹78,000 depending on your system size, disbursed via Direct Benefit Transfer to your bank account, typically within a few weeks of a valid, complete request.
If your application gets rejected, it’s almost always for one of these reasons: a non-empanelled vendor, a name mismatch between Aadhaar and your electricity bill, pending bill dues, or incorrect bank details.
Benefits of Net Metering
- Lower electricity bills. You only pay for your net consumption, not your gross usage, which is the single biggest financial upside.
- Faster payback period. Because your exported units are credited at the same rate you’d pay to buy them, your solar investment recovers its cost faster than under gross metering.
- No battery required. You’re using the grid itself as your “storage,” banking midday surplus against evening and night usage.
- Reduced strain on the local grid. Rooftop solar feeding excess power back during peak sunlight hours can ease load on the distribution network in that area.
- Smaller carbon footprint. Every unit you generate and use directly, or export for someone nearby to use, is a unit that didn’t come from a coal-fired plant.
- Long-term energy cost predictability. Once your system is commissioned, a big chunk of your monthly bill becomes far less sensitive to future tariff hikes.
Limitations You Should Know Before You Apply
Most articles gloss over this section, but it matters just as much as the benefits.
- No power during grid outages. On-grid systems with net metering are designed to shut off automatically during a grid failure, for safety reasons. So if your area loses power, your solar system won’t power your home either, unless you’ve added a separate battery backup.
- You still pay fixed charges. The monthly demand or fixed charge on your electricity bill doesn’t disappear just because you’re net-zero on units. It applies regardless of how much solar you generate.
- Export credit isn’t cash. Most DISCOMs adjust your bill; they don’t hand you a cheque for surplus units, and unused credit may or may not carry forward depending on your state’s settlement period.
- Capacity caps apply. You can’t oversize your system indefinitely and expect full net metering benefits. States cap eligible capacity, and going over it can push you into gross metering or net billing instead.
- Approval delays are common. Despite regulatory timelines, real-world DISCOM processing can run longer than the official window, especially in areas with high application backlogs.
Because outages mean your solar stops working too, many households pair their net-metered system with a small inverter-battery backup unit (available on Amazon) just for essential loads like lights, fans, and Wi-Fi. Worth considering if power cuts are frequent in your area.
Cost of a Net Meter
Net metering is not free in most states. There’s typically an application fee and a meter cost, which varies by DISCOM and system size. Some DISCOMs bundle this into your overall installation cost through your installer, while others bill it separately.
As a rough range, expect meter and application charges anywhere from a few hundred to a few thousand rupees, depending on your state and connection category. Always ask your installer for an itemised quote so this isn’t a surprise after commissioning.
Common Mistakes to Avoid
- Oversizing your system beyond your actual consumption pattern, which wastes money on generation capacity you can’t get full credit for.
- Skipping the ALMM check on your panels. Non-compliant panels are a common rejection reason during inspection.
- Submitting incomplete documents, which is still the single biggest cause of delay across almost every DISCOM.
- Assuming your installer is empanelled without verifying it yourself. An unregistered vendor can cost you both your net metering approval and your subsidy.
- Ignoring your state’s specific capacity cap, then being surprised when your DISCOM pushes you toward gross metering instead.
Net Metering: Myth vs Fact
Myth: Net metering means free electricity. Fact: It reduces your bill significantly, but fixed charges and any consumption beyond your solar credit still apply.
Myth: You get paid in cash for excess solar power. Fact: In most Indian states, surplus units are adjusted against future bills, not paid out as cash.
Myth: Net metering works the same way in every state. Fact: Capacity limits, export tariffs, and even approval timelines vary DISCOM to DISCOM.
Myth: Once installed, your solar system works even during a power cut. Fact: Standard grid-tied systems shut down automatically during outages for safety. You’d need a separate battery setup for backup power.
Is Net Metering Right for You?
Net metering makes the most financial sense if your household or business consumes electricity mostly in the morning and evening, which is true for the majority of Indian homes. Your solar system generates its peak output at noon, exports it, and you draw that credit back down later in the day.
It’s a weaker fit if your load is genuinely round-the-clock and heavy (certain manufacturing units, for instance), where gross metering or a hybrid system with battery storage might work out better financially.
If you’re unsure, ask your installer to model your actual load curve against expected solar generation before finalising your system size. This one step prevents most of the “my solar bill didn’t drop as much as I expected” complaints.
Conclusion
Net metering is what turns a rooftop solar system from “nice for the environment” into “makes clear financial sense.” It lets you use your own power first, export what you don’t need, and get credited for it, without needing an expensive battery setup.
The mechanism itself is simple. The part that trips people up is the paperwork: choosing an empanelled installer, getting your documents right the first time, and understanding your specific state’s capacity limits and tariffs before you commit to a system size.
If you’re currently comparing solar panels or inverters for your home, it’s worth reading these alongside this guide: our breakdown on how to select solar panels for your home, and our guide to choosing the right inverter and battery, both of which feed directly into how well your net metering setup performs.
Frequently Asked Questions
It’s a billing system where your DISCOM tracks the electricity you use from the grid and the electricity your solar panels send back to it, then charges you only for the difference.
In practice, yes. In India, net metering is specifically the billing framework for grid-connected rooftop solar. Some countries apply it to wind or other renewables too, but that’s uncommon here.
No. Net metering is designed so you don’t need a battery. The grid effectively acts as your storage, crediting your daytime surplus against your evening and night usage.
With net metering, you use your own solar power first and export only the surplus. With gross metering, all your solar output is exported, and you buy back everything you use, usually at different rates.
Rarely in India. Most DISCOMs adjust surplus units as a bill credit rather than paying cash, though a few states offer periodic cash settlement for large unused credits.
No, not by default. Grid-tied systems automatically shut down during outages for safety. You’d need a separate battery backup setup for that.
It’s mandatory if you want a grid-connected system and want to claim credit for exported power. Off-grid, battery-only systems don’t need it.
This depends on your state’s capacity cap. Commonly anywhere from a few kW for homes up to several hundred kW or more, with larger systems sometimes required to use gross metering instead.
Typically 15 days to about 6–8 weeks, depending on your DISCOM’s backlog, your system size, and how complete your documentation was on the first submission.
Yes. Your DISCOM’s commissioning certificate ( issued after net meter installation) is required before your subsidy request can be processed.
Generally, an identity proof, ownership or NOC document, a recent electricity bill, a single-line diagram, equipment invoices, and an installation completion report.
Common reasons include a non-empanelled installer, a name mismatch between your ID and electricity bill, pending bill dues, or missing/incorrect technical documents.
No. Fixed or demand charges on your bill remain regardless of how much solar you generate. Net metering only affects the per-unit consumption charge.
Yes, though many states cap commercial net metering at a lower capacity than residential, pushing larger businesses toward gross metering or net billing instead.
Unused credit typically carries forward to future billing cycles, though some states settle any large annual surplus at a lower rate rather than carrying it indefinitely. Check your DISCOM’s specific policy.
Usually yes. An application fee and meter cost apply, varying by state and system size, sometimes bundled into your installer’s overall quote.
It lets you install solar at one location (like a rooftop in a different area) and credit that generation against an electricity connection elsewhere, useful for consumers with multiple connections.
Yes. Your installer generally needs to be empanelled with your DISCOM or registered on the national rooftop solar portal, especially if you want subsidy eligibility.
Net billing also lets you use your solar power first, like net metering, but it prices your imports and exports at different rates rather than a straight 1:1 credit.
You can escalate a delayed installation to your State Electricity Regulatory Commission (SERC), since net metering is a legally enforceable entitlement under the 2022 central rules for eligible consumers.
We hope you find this information useful, and please share it with your friends and relatives.
Also, consider following our Facebook and Twitter pages for regular updates.
Subscribe to our free newsletter so that you will get similar articles and regular updates directly in your Email.
Subscribe to be the first to learn about new information
Disclosure: If you follow our links to a retailer’s website and make a purchase, we will get an affiliate commission on some, but not all, of the items or services we promote. This will cause no price change for you.
