Net Metering Above Your Sanctioned Load: Caps, Load Enhancement and Captive Alternatives

In many states you cannot net-meter a solar plant larger than your sanctioned load or contract demand. The central rules let a state commission allow net metering up to 500 kW or the sanctioned load, whichever is lower; state regulations set their own ceilings, some below 100% of load. Above the cap you can raise the load, change the metering arrangement, go captive or open access, or build smaller.

Why does the DISCOM tie net metering to your sanctioned load?

Your service line, transformer and protection were sized for the load you applied for. A solar plant that exports more than the connection was designed to carry changes fault levels and feeder loading, so the DISCOM treats sanctioned load or contract demand as the proxy for what the network can safely take at your point of supply.

The central rule is a fallback, not a fixed national cap. Under the Electricity (Rights of Consumers) Rules, as amended in 2021, net-metering, gross-metering, net-billing and net feed-in arrangements follow the state commission's regulations. Where those regulations are silent, the commission may allow net metering for loads up to 500 kW or up to the sanctioned load, whichever is lower, and net billing or net feed-in for other loads. Official summaries give different notification dates for the amendment, so quote the Gazette text, not a summary, in any application.

Commissions also limit capacity at the transformer. Jharkhand's regulations cap the rooftop capacity allowed on the area fed by a distribution transformer at 15% of its rated capacity unless the commission fixes another percentage, and Punjab's order makes system capacity subject to the cumulative capacity of the distribution transformer or feeder. So a plant can fit your load and still be refused on transformer headroom.

What do state regulations actually say about the cap?

The table lists what we could confirm from regulator documents. Treat it as a map of how different the rules are, not as a substitute for your DISCOM's current text; most of these regulations have been amended since.

Haryana shows how strictly a ceiling can be applied. Trade press reported that in September 2026 HERC refused to relax the 500 kW net-metering ceiling for a 1,412 kW rooftop plant at a consumer with a 5,000 kW sanctioned load, and pointed to gross metering as the lawful way to use the full capacity. We have not read the order itself, so treat it as a pointer to check, not as settled law. The lesson stands either way: a large sanctioned load does not by itself buy a large net-metering allowance.

Two measurement traps decide whether your plant fits. Contract demand is quoted in kVA while solar is rated in kW, and Punjab converts at a power factor of 0.9. And the cap may apply to the inverter's AC rating rather than the module (DC) capacity, so a 110 kWp array on a 100 kW inverter may be compliant where a 110 kW inverter is not.

How does the load-enhancement route work?

You apply to the DISCOM to raise the sanctioned load or contract demand, then apply for solar against the new figure. The DISCOM checks whether your service line, meter and transformer can carry the higher load, may ask for a security deposit or network charges, and issues a revised agreement. The steps and timelines come from your state's supply code, so ask for the time limit in writing.

The cost that surprises buyers is on the bill, not in the application. A higher contract demand usually raises fixed or demand charges, and net metering offsets energy units only; the Jharkhand regulations say the consumer keeps paying fixed or demand charges whatever credits are available. Before you enhance the load, price the trade-off:

• the extra fixed charge per month for the additional kVA, multiplied by twelve;
• against the energy your extra solar kW will generate and you will actually use;
• plus any one-time deposit, network or transformer cost.

If the extra load is only needed to fit the solar plant, the numbers often favour a smaller plant or a different route. Our sanctioned-load checker shows your headroom and flags when an enhancement is needed, before you size the array.

When are net billing, gross metering or captive routes better?

If the plant is larger than the net-metering cap but still within your load, the regulations usually offer net billing or gross metering. Under gross metering you sell all generation to the DISCOM at a commission-set tariff and buy your consumption at the retail tariff, which for a factory with a daytime load is rarely attractive. Our guide to captive solar versus open access covers the off-site routes in detail.

For larger plants, open access and captive generation do not depend on net-metering limits. The Green Energy Open Access Rules, 2022 reduced the open-access threshold to 100 kW and require approval within 15 days or the application is deemed approved, subject to technical requirements. A captive plant must meet the Electricity Rules, 2005 test, which as amended in 2023 requires the captive user to hold at least 26% of ownership and, where a special purpose vehicle owns the plant, at least 51% of that company; check the current text before you structure ownership.

How should you choose?

Start from a year of bills. Note the sanctioned load or contract demand, the daytime share of consumption and the monthly fixed charge. Ask the DISCOM three questions in writing: the cap that applies to your category, the transformer headroom at your feeder, and the time it takes to enhance load. Then compare the options above on payback, not on plant size. Some DISCOMs accept behind-the-meter plants with export prevented; our note on zero-export devices explains the mechanics.

How Secured Engineers helps

We design the plant in-house and file the DISCOM net-metering application, the Fire NOC and the CEIG approval ourselves, so the load, cap and transformer question is answered before the array is drawn. MEPF and solar can sit under one contract, which matters when an enhancement also changes your HT or LT electrical works. We work from offices in Noida (Delhi NCR) and Ludhiana, on 535+ projects across 18+ states, with 89.77% repeat clients. Our published C&I band is ₹24,000–32,000 per kW excluding GST; see 100 kW and 500 kW costs for the working numbers.

If your plant is bigger than your cap, send us a recent bill and the connection details. We will tell you which route fits, on our solar EPC page or on WhatsApp, by phone on +91 70099 85817, or through a free proposal.