What project owners need to know.
MNRE announced on 18 March 2026 that it is expanding the Approved List of Models and Manufacturers framework to introduce ALMM List-III for solar ingots and wafers, with an effective date of 1 June 2028. The initial wafer list is to be issued only once at least three independent manufacturing units, reported as not under common ownership or control, are operational with a combined capacity of at least 15 GW, and a wafer applicant must also hold equivalent ingot capacity. As of 17 October 2026, MNRE's public ALMM page still shows the 17 March 2026 wafer amendment, with its newest notices being List-II cell revisions up to 8 October 2026, rather than an initial ALMM List-III wafer list. Separately, MNRE gave selected net-metering and open-access projects a limited ALMM List-II (cell) exemption window through 31 December 2026; that does not change the announced List-III wafer effective date. For project owners, wafer manufacturers, and upstream investors, the practical implication is to separate current cell-level project relief from the future wafer-and-ingot compliance route, and to read the latest published MNRE documents rather than assume that a headline applies to every project.
What the government announced
A PIB release dated 18 March 2026 states that MNRE has expanded the ALMM framework to introduce ALMM List-III for ingots and wafers, with effect from 1 June 2028. The release says this extends mandatory sourcing requirements further upstream, adds grandfathering provisions for projects already in the pipeline, and is intended to deepen domestic value addition across the solar supply chain.
The same release says the initial wafer list is to be issued only once at least three independent manufacturing units with a combined 15 GW capacity are available. It also says a manufacturer seeking enlistment in ALMM List-III for wafers must have equivalent ingot manufacturing capacity.
Who qualifies for ALMM List-III: the short version (last verified 19 October 2026)
Based on the PIB release of 18 March 2026 and trade reporting of the MNRE order, List-III is a list of wafer manufacturers whose wafers are made from ingots produced in matching, enlisted ingot capacity. A wafer line that slices bought-in ingots is unlikely to be enough on its own. Check the MNRE order text and any later amendments before relying on this summary for a bid or investment decision.
- Effective date announced: 1 June 2028
- First list: issued once at least three independent units with combined capacity of 15 GW a year are available
- Wafer makers need equivalent ingot capacity behind their wafers
- Projects already under implementation are expected to be grandfathered under the order's terms
What is officially visible today
As of 12 October 2026, MNRE's public ALMM reference page still lists the updated 17 March 2026 amendment for implementation of ALMM for wafers, and it shows continued activity on the currently live Lists I and II. The public page lists the 12th revision of ALMM List-II for solar PV cells dated 8 October 2026 (following the 10th and 11th revisions on 28 September and 5 October), an updated List-I dated 16 September 2026, and the July 2026 notice rescinding an earlier ALMM office memorandum. It does not show any list for ingots or wafers.
On 18 July 2026, MNRE said there would be no blanket extension of ALMM List-II applicability, but provided a limited exemption until 31 December 2026 for net-metering and open-access renewable-energy projects. That is a project-category and commissioning-window point about current cell-level List-II rules; it is not a waiver, postponement, or substitute for the announced List-III wafer framework from 1 June 2028. The public pages therefore show an active compliance surface, but they do not yet show an initial ALMM List-III wafer list. That is an important distinction for buyers writing bids, supply contracts, and commissioning schedules.
The trigger, the cut-off and grandfathering
The 15 GW figure is a trigger for publishing the first wafer list, not a national capacity target. TaiyangNews' reading of the March 2026 order says the initial list will be issued only when at least three independent units, without common ownership or control, are operational with a combined capacity of at least 15 GW per year. All India Radio's report of the same announcement says all solar projects, including net-metering and open-access projects, will be required to use ALMM-listed wafers from 1 June 2028.
The same coverage describes a cut-off mechanism: bids submitted after a specified cut-off date must use List-III-compliant wafers, and TaiyangNews reports a 7-day window from publication of the initial list for exemptions. To avoid disruption, separate lists are to be kept for grandfathered projects: List-I(a) for modules using non-enlisted cells and wafers, List-I(b) for modules using enlisted cells but non-enlisted wafers, and List-II(a) for cells using non-enlisted wafers.
Two practical consequences follow. First, the date that matters for a given project may be the bid date relative to the cut-off, not only the 1 June 2028 effective date. Second, because wafer enlistment requires equivalent ingot capacity, a wafer-only plan without a matching ingot route is unlikely to qualify. How 'independent' and 'equivalent' are measured should be read from the final order text.
- Trigger: at least three independent units, combined 15 GW, operational
- Integration rule: wafer applicants need equivalent ingot capacity
- Cut-off: bids after the specified date must use List-III wafers; reported 7-day exemption window after the initial list
- Grandfathering: separate List-I(a), List-I(b) and List-II(a) lists
- Coverage: all projects, including net-metering and open access, from 1 June 2028
- Bid-document check: record the bid submission date, confirm whether the tender text names ALMM List-III, and keep evidence of submission in case grandfathering is questioned later
Why this matters for manufacturers and project owners
ALMM List-III matters because wafers sit between upstream silicon conversion and downstream cell manufacturing. If future compliance depends on listed wafers and equivalent ingot capacity, wafer projects will need a clearer view of upstream integration, traceability, quality systems, and the commercial source of ingots before they finalize capacity plans.
The 2026 List-II revisions and the limited relief window also show that ALMM implementation details continue to move before List-III starts. This does not mean every project should rush into a fixed plant design immediately. It means the commercial model should test scenarios for captive ingots, integrated partners, qualifying suppliers, lead times, grandfathering assumptions, and the exact date on which the relevant project category will need ALMM-compliant wafers.
- Map which planned projects could fall under ALMM-linked sourcing conditions
- Check whether the intended wafer route depends on captive ingot capacity or a separately qualified upstream arrangement
- Align equipment, utilities, and metrology planning with the traceability and quality evidence customers may request
- Write bid and supply contracts so policy-trigger dates, grandfathering assumptions, and compliance responsibility are explicit
- Do not assume an initial public wafer list exists until it is visible on current MNRE pages
What to plan before equipment orders are placed
For ingot and wafer lines, compliance planning should begin before machinery is purchased. The project should define the intended product mix, annual output, upstream silicon source, ingot format, wafer specification, documentation route, and the commercial path to customer acceptance. Equipment quotations should then be matched to that compliance-aware production plan.
MNRE's PLI page continues to emphasize integrated high-efficiency solar PV manufacturing, local material ecosystems, and better quality control. The policy direction therefore supports a requirement-led approach rather than a standalone machine purchase that leaves upstream integration unresolved.
For late-September 2026 planning, that means treating the March 2026 ALMM List-III announcement as a framework with a known effective date and threshold, keeping the limited List-II relief window separate, and grounding live compliance assumptions in the most recent MNRE pages and notices actually published.
- Fix the product and customer route before issuing RFQs for growers, squaring, slicing, cleaning, or inspection equipment
- Model the ingot-to-wafer balance, consumables, utilities, traceability records, and qualification workflow
- Review policy timing alongside import lead times, installation, commissioning, and engineering-lot schedules
- Check the current MNRE ALMM page before committing to any wafer-list assumption in a bid or supply contract
- Confirm legal eligibility and compliance interpretation with the relevant authority and professional advisers before committing capital
How JRST supports this requirement
JRST can translate ALMM-driven questions into a project plan: upstream integration assumptions, ingot and wafer equipment scope, consumables, utilities, quality records, supplier coordination, installation planning, commissioning, and production-readiness sequencing. Compliance interpretation and final enlistment remain subject to the applicable government process and the customer's documented requirement.
Discuss your requirement
Mohammed Saif Zaveri connects JRST's industrial content to execution conversations.
As Co-Founder and designated partner of JRST Technology LLP, Mohammed Saif Zaveri works across industrial growth, strategic partnerships, client conversations, equipment strategy, and project pathways for silicon, solar, semiconductor, and advanced-manufacturing opportunities.
This knowledge page is part of JRST's public industrial knowledge base, designed to help buyers move from search terms and early research toward a structured technical-commercial discussion.
View Mohammed Saif Zaveri's profileConnect on LinkedInFrequently asked questions
When does ALMM List-III for solar ingots and wafers take effect?
The PIB release dated 18 March 2026 says the ALMM List-III framework for ingots and wafers will take effect on 1 June 2028.
Has the initial ALMM List-III wafer list been published yet?
Not as far as the public record shows. Status checked 17 October 2026: MNRE's ALMM page lists the 17 March 2026 amendment for wafers and ALMM List-II cell revisions up to the 12th revision of 8 October 2026, but no initial ALMM List-III wafer list. The requirement applies from 1 June 2028, and the first list is to be issued only once at least three independent units with a combined 15 GW capacity are available. That is an inference from the public MNRE page, so check it directly before relying on it.
Does ALMM List-III mean every solar project must use listed wafers immediately?
No. The announced effective date is 1 June 2028, and the detailed applicability still needs to be checked against the final order, the relevant bid or project category, any grandfathering provisions that apply to the project, and the latest MNRE notices visible at the time of procurement.
Does the 31 December 2026 List-II relief window delay ALMM List-III for wafers?
No. MNRE's 18 July 2026 announcement provides limited relief from the current List-II cell requirement for selected net-metering and open-access projects that commission by 31 December 2026. It does not alter the announced 1 June 2028 effective date for ALMM List-III for ingots and wafers.
When will the first ALMM List-III for wafers be issued?
Only once a capacity trigger is met. ALMM List-III for ingots and wafers is effective from 1 June 2028, but the PIB release says the initial list is to be issued only when at least three independent manufacturing units with a combined 15 GW capacity are available, and TaiyangNews reports those units must not be under common ownership or control. A wafer applicant must also hold equivalent ingot capacity, and grandfathering protects bids submitted before the cut-off.
Do the three units for the initial wafer list have to be independent?
Yes. Coverage of the March 2026 order, including TaiyangNews, says the initial list needs at least three independent manufacturing units, not under common ownership or control, operational with a combined capacity of at least 15 GW. The exact test for independence should be read from the final order.
Are existing solar projects exempt from ALMM List-III?
Largely yes, if their bids were submitted before the cut-off. MNRE's March 2026 announcement applies List-III to ingots and wafers from 1 June 2028 and includes grandfathering: bids submitted after a specified cut-off date must use List-III-compliant wafers, and TaiyangNews reports the exemption window as seven days from publication of the initial list. The initial list is to be issued once at least three independent manufacturers with 15 GW combined capacity are enlisted, and separate lists, reported as List-I(a), List-I(b) and List-II(a), are kept for grandfathered projects. Confirm the position for a specific project against the final MNRE order.
Does ALMM List-III cover net-metering and open-access projects?
According to All India Radio's report of the March 2026 announcement, all solar projects, including net-metering and open-access projects, will be required to use ALMM-listed wafers from 1 June 2028.
Why does equivalent ingot capacity matter?
The PIB release says a manufacturer seeking enlistment in ALMM List-III for wafers must also have equivalent ingot manufacturing capacity. That points to a policy preference for deeper upstream integration rather than wafer-only capacity without a matching ingot route.
Why do the 2026 ALMM notices matter if List-III starts in 2028?
Because they show the compliance surface is still moving. The public MNRE ALMM page was updated through August 2026 with List-I and List-II revisions and clarifications, and the July List-II relief is narrow rather than a blanket extension. Bids and supply contracts should therefore be written against the latest published documents rather than a static compliance assumption.
How can JRST help with ALMM-linked ingot and wafer planning?
JRST can help define the project route, connect policy timing to equipment and utility planning, compare integrated and non-integrated sourcing options, coordinate machinery and consumable requirements, and structure a requirement-led execution plan. Legal eligibility, enlistment, warranty, and performance commitments remain project-specific.
Who qualifies for ALMM List-III?
Wafer manufacturers whose wafers come from their own matching ingot capacity, once MNRE issues the first list. The list is to be issued after at least three independent units with a combined 15 GW a year are available, and it takes effect from 1 June 2028. Verify against the current MNRE order before bidding.
Primary sources and further reading
Last reviewed 2026-10-19. Technical scope, policy eligibility, availability, and commercial terms should be independently confirmed for each project.