Do you actually need ALMM modules?
A behind-the-meter captive plant is a different procurement category from a scheme project. If a bidder has priced a premium in, ask which order requires it.
If a bidder has quoted you a premium for ALMM-listed modules on a behind-the-meter captive rooftop, ask them which order requires it. On a good number of projects, nothing does — and you are being charged for a compliance obligation you do not have.
What the list is
The Approved List of Models and Manufacturers is an MNRE instrument. It is not a quality mark and not a safety standard; it is a procurement restriction. Modules sit on List I, and cells on List II. Being on it means the manufacturer has been through MNRE's enlistment process — it says nothing about whether one listed module outperforms another.
Certification is a separate matter entirely. IEC 61215 and IEC 61730 are the international standards that establish a module will survive twenty-five years on your roof, and they apply whether or not the manufacturer appears on any Indian list. Those are the ones your engineer should be checking.
Where it bites
Historically ALMM applied where public money or a public scheme was involved: government and government-assisted projects, projects under central and state schemes, and — in a number of states — projects taking net metering, because net metering is a regulated benefit granted by the DISCOM.
That scope has widened, and open access is now inside it. Projects commissioned on or after 1 June 2026 require modules from List I and cells from List II. If you are buying power through open access or building a group captive plant, assume the requirement applies and plan procurement around it — the interesting question there is not whether to comply but whether your contract says who carries the cost if the lists or the dates move again.
This is not a loophole and it is not aggressive interpretation. It is the ordinary reading of what the restriction is for: the list governs procurement where the public is paying, not what a private industrial consumer chooses to put on their own roof for their own consumption.
Why it costs you money
Restricting a captive project to the list narrows the supply pool. A narrower pool means less competitive pricing, and on a large rooftop that difference is real capital. Worse, the restriction sometimes gets applied on a project where it was never required, and the premium is quietly kept by whoever quoted it.
The reverse error is just as expensive. A project that does need ALMM modules, built with modules that are not listed, can lose the benefit it was designed around — and the remedy is replacing modules on a commissioned plant.
What to ask before you sign
- Does my project actually attract the requirement? Ask for the specific basis: the route to market, the scheme, the metering regime, or the approval that triggers it. “Best practice” is not a basis — but for open access, since June 2026, the basis exists.
- When will it be commissioned? The obligation attaches to the commissioning date, not the order date. A project that slips across a threshold can change category mid-build.
- If I am taking net metering, what does my state require? This is where the answer most often changes, and it is state-specific.
- What is the price difference, itemised? If the requirement does not apply, the premium should not be in the quote. If it does, you should still see what it costs you.
- Are the modules IEC 61215 and 61730 certified, and what is the warranty? At least 90% output to year ten and 80% to year twenty-five is the level worth holding a supplier to.
- What happens if the rules change mid-build? ALMM scope and enforcement dates have moved more than once. Who carries that risk should be in the contract, not assumed.
How we handle it
We establish which regime a project sits under before specifying modules, and we say so in writing. Where the requirement applies, we source to it. Where it does not, we do not charge you as though it did — we widen the supply pool and pass the benefit through, holding the same IEC certification and warranty standard either way.
The honest position is that this is one of the more moveable areas of Indian solar regulation. Anyone who tells you the answer is simple, in either direction, is not reading the orders.
ALMM scope, list contents and enforcement dates are set by MNRE and have been revised several times — most recently extending to open access from 1 June 2026, with a List II exemption window that has its own expiry. State net-metering regulations vary independently. Nothing here is a compliance opinion. We confirm the position for your specific project against the applicable order and your state's regulations before we specify or quote.
Take the twenty-question checklist with you. Printable, one page per section, and nothing in it is specific to Vibgyor — run it against us too.
Send us twelve months of bills.
Send twelve months of bills and we will tell you which procurement regime your project actually sits under before anything is specified. The analysis comes back free, with no commitment.