Who this is for: Procurement managers, EPC project leads, and contractors sourcing solar equipment for government-funded or utility-scale projects in India.
If you've ever received a shipment of solar panels only to discover they aren't on the ALMM list — or worse, failed a project audit because your inverters lacked BIS certification — you already know the cost of getting compliance wrong. For contractors and EPC firms operating in India's rapidly expanding solar sector, certifications are no longer paperwork formalities. They are hard procurement gates that determine whether your project gets approved, funded, and commissioned.
Yet the certification landscape remains poorly understood. Most procurement teams know the acronyms — BIS, IEC, ALMM — but few have a clear picture of what each requires, which products they apply to, and how they interact with each other. This guide changes that.
The Three Certification Pillars of Solar Procurement in India
India's solar compliance framework rests on three distinct but interconnected pillars. Each operates at a different level — national standards, international benchmarks, and project eligibility — and procurement teams must understand all three to avoid costly mistakes.
These three frameworks operate at different levels — national standards, international benchmarks, and project eligibility — but they are deeply interconnected. A panel that carries IEC certification does not automatically qualify for ALMM listing. A BIS-marked product may still be ineligible for a government project if it's not on the ALMM list. Understanding the overlap — and the gaps — is where procurement decisions get made or broken.
BIS Certification: India's Quality Baseline
The Bureau of Indian Standards is India's national standards body, operating under the Ministry of Consumer Affairs. For solar photovoltaic modules, BIS certification under the Quality Control Order (QCO) has been mandatory since April 2022. This means any solar PV module — whether domestically manufactured or imported — must carry the BIS Standard Mark (ISI mark) to be legally sold in India.
Which standards apply?
Solar PV modules fall under two key Indian Standards: IS 14286 (for crystalline silicon terrestrial PV modules) and IS 16077 (for thin film modules). These standards are technically aligned with IEC 61215 and IEC 61730, meaning a module certified to the international standard has a pathway to BIS — but must still complete the Indian certification process separately.
What does BIS certification involve?
Manufacturers — domestic or foreign — must apply to BIS, submit product samples for testing at a BIS-recognised lab, and undergo a factory audit. Foreign manufacturers also need a local Authorised Indian Representative (AIR). Once certified, the manufacturer can affix the ISI mark on products, but is subject to ongoing BIS surveillance audits.
- Since April 2022, all solar PV modules sold in India must carry BIS certification — no exceptions
- Imports without BIS certification are subject to seizure at customs
- The QCO now covers a broader list of electrical equipment including certain inverter components
- BIS licence must be valid and active — check the BIS Care portal before placing orders
- Non-certified products: contractor liability in case of project audit failure
IEC Standards: The International Benchmark
The International Electrotechnical Commission (IEC) sets the global baseline for solar equipment performance and safety. For procurement teams, two standards are most directly relevant: IEC 61215 (design qualification and type approval for crystalline silicon modules) and IEC 61730 (module safety qualification). For solar inverters, IEC 62109 governs safety.
IEC certifications are issued by accredited testing laboratories worldwide — CPRI, NABL-accredited labs in India, as well as international bodies like TÜV Rheinland, UL, and Bureau Veritas.
Unlike BIS, IEC certification is not a legal mandate for domestic sale in India — but it is practically mandatory for any serious procurement, because:
- BIS's IS 14286 and IS 16077 are technically harmonised with IEC standards — IEC test reports significantly expedite BIS certification
- Most EPC contracts and project financing covenants specify IEC-certified equipment as a minimum requirement
- ALMM listing implicitly requires IEC certification as part of the technical qualification process
- Insurance and warranty claims on non-IEC-certified equipment are routinely denied
“IEC certification is not just a quality signal — it's the technical foundation on which BIS compliance and ALMM eligibility are built. Treat it as the starting point, not an optional add-on.”
— Headsup B2B Technical Advisory
Key IEC Standards — Quick Reference
| Standard | Covers | Applies To | Mandatory? |
|---|---|---|---|
| IEC 61215 | Design qualification & type approval | Crystalline silicon modules | De facto |
| IEC 61730 | Module safety qualification | All PV modules | De facto |
| IEC 62109 | Safety for power converters | Solar inverters | De facto |
| IEC 61724 | System monitoring & performance | Solar PV systems | Optional |
| IEC 62548 | PV array design requirements | System design | Optional |
ALMM: The Procurement Gate for Government Projects
The Approved List of Models and Manufacturers (ALMM) is MNRE's instrument for ensuring that solar panels used in government-funded projects meet quality standards and traceability requirements. Introduced in 2021 and made mandatory for all projects funded by SECI, NTPC, state DISCOMs, and other government agencies, ALMM is arguably the most operationally significant certification for EPC contractors in India today.
ALMM is maintained in two parts: List I covers solar PV modules, and List II covers solar cells. Manufacturers — domestic or foreign — must apply to MNRE with technical documentation, quality certifications, and manufacturing capacity evidence. Listings are reviewed and updated periodically, and manufacturers can be suspended or delisted if quality standards slip.
What ALMM means for your procurement
If your project receives any central government funding — whether directly through SECI/NTPC tenders or through schemes like PM-KUSUM, RESCO, or state government solar programmes tied to central budgets — you must source panels exclusively from ALMM-listed manufacturers. There are no exceptions and no waivers.
- Project disqualification or tender cancellation
- Forfeiture of performance bank guarantee
- Full material replacement at contractor cost before commissioning
- Blacklisting from future SECI/NTPC tenders
- Loan disbursement hold by project financing banks
ALMM — Key Things Procurement Teams Must Verify
ALMM compliance is not a one-time check at bid stage. The list changes, listings expire, and model-level details matter. Here are the five non-negotiable verification steps every procurement team must build into their workflow.
Verify ALMM listing status at time of order — not just at bid
MNRE updates the ALMM list periodically. A manufacturer listed at bid stage may be suspended or removed by the time you place the order. Always check the live MNRE portal before issuing a PO.
Confirm the specific model, not just the manufacturer
ALMM listing is model-specific. A manufacturer may be listed for a 400W panel but not a 545W variant. Your PO must reference the exact model number on the ALMM list.
Check domestic manufacturing capacity vs. your project volume
India's ALMM-listed domestic capacity is growing but not unlimited. During peak project cycles, lead times for ALMM panels from top manufacturers can stretch 10–14 weeks. Plan procurement timelines accordingly.
Get a written ALMM compliance declaration from your supplier
A verbal assurance is not sufficient. Require a written confirmation with the ALMM model listing reference and an undertaking of compliance as part of your supply agreement.
Understand ALMM exemptions — they are narrow
Privately funded projects (no government equity, grant, or subsidy) are currently exempt from ALMM. However, if project financing involves any government bank or scheme with a government nexus, ALMM typically applies. When in doubt, apply it.
How BIS, IEC, and ALMM Interact: A Practical Map
Understanding how the three frameworks relate to each other is essential for building a compliant procurement checklist. Here's how they stack:
| Product | BIS Required? | IEC Expected? | ALMM Required? | Notes |
|---|---|---|---|---|
| Solar PV Modules | Yes | Yes | Govt projects | All three required for government projects |
| Solar Cells | Partial | Yes | ALMM List II | ALMM List II for cells used in govt projects |
| Solar Inverters | Check QCO | IEC 62109 | No | BIS QCO scope expanding — verify current status |
| DC Cables | Yes | Recommended | No | BIS IS 694 / IS 1554 applicable |
| Mounting Structures | No | No | No | Structural design specs per project requirements |
| Batteries / BESS | Evolving | IEC 62619 | No | Regulations tightening rapidly — check latest MoP guidelines |
Common Procurement Risks Around Certifications
Even well-prepared procurement teams trip up on certification details. The risks below are the most common — and the most costly — failure modes seen across solar EPC projects in India.
The ALMM list changes. A manufacturer listed 3 months ago may have been delisted. Always verify before PO issuance.
IEC certifications have validity periods. An expired certificate does not guarantee current product compliance. Demand valid, in-scope certificates.
Your specific panel wattage/model must be listed, not just the brand. A 540W panel is not covered by a 400W listing.
BIS and ALMM are separate processes. A BIS mark does not confer ALMM status. Both must be independently verified.
If your preferred ALMM model is delisted mid-procurement, you may need to re-engineer mounting structures and inverter sizing.
Always get written compliance declarations with certificate numbers, model references, and validity dates as part of the supply contract.
A Procurement Compliance Checklist for Solar Equipment
Before any solar equipment purchase order leaves your desk, the seven items below must be verified, documented, and contractually guaranteed. This is the minimum standard for risk-free procurement.
- ▸BIS: Manufacturer holds a valid, current BIS licence for the specific product category (check BIS Care portal)
- ▸IEC Modules: Valid IEC 61215 and IEC 61730 certificates with scope covering the exact panel model and wattage
- ▸IEC Inverters: Valid IEC 62109-1 and IEC 62109-2 certificates from accredited lab
- ▸ALMM: Panel manufacturer and specific model listed on current MNRE ALMM List I (check mnre.gov.in)
- ▸Certificate Validity: All certificates are current — not expired, not suspended
- ▸Written Declaration: Supplier has provided a signed compliance declaration referencing certificate numbers
- ▸Contract Clause: Supply agreement includes a warranty of compliance and remedy clause for non-compliant supply
What This Means for Your Procurement Partner
Managing certification compliance manually — checking multiple portals, cross-referencing model numbers, validating certificate expiry dates across dozens of SKUs — is time-consuming and error-prone. For a project with 5,000+ panels, the compliance verification task alone can take a procurement team days.
The structural advantage of sourcing through a verified B2B procurement platform is that certification compliance is built into the sourcing layer. Suppliers are pre-qualified against BIS, IEC, and ALMM requirements before they appear in your sourcing results. Model-level ALMM verification is done as part of the product listing process. Your team focuses on project execution — not portal-checking.
As India's solar pipeline accelerates toward 500 GW, the volume of projects — and the regulatory scrutiny on each — will only increase. Building certification compliance into your procurement process is not a compliance burden. It is the foundation of risk-free project delivery.
“The contractors who consistently deliver on time are the ones who solved compliance upstream — in procurement — rather than discovering problems at commissioning.”
— Headsup B2B Procurement Research, 2025
Key Takeaways
The five points below summarise the core compliance posture every EPC contractor and procurement team must operate from in India in 2025–26.
No ISI mark means the product cannot legally be sold or installed. Check the BIS Care portal before every order.
While not a standalone legal mandate, it is practically required by every serious project, financier, and insurer. Demand it as a minimum.
Always verify the specific model on the live MNRE ALMM list — not just the manufacturer name — before issuing a PO.
A BIS mark does not mean ALMM-listed. An IEC certificate does not confer BIS compliance. Each must be independently verified.
Manual verification at scale is a risk. Pre-qualified supplier networks with built-in certification checks are the procurement standard for competitive EPC firms in 2025–26.
