Indian Solar Wafer Policy 2028: ALMM Rules, Deadline, Impact

How Will the Solar Wafer Mandate Affect India's Solar Manufacturers and Project Developers?

The impact of ALMM on solar manufacturers differs by position in the chain. The following is an analysis, not settled fact.

Module manufacturers:

A module maker keeps its place in the main List-I only if its cells and wafers are themselves listed. Producers without integrated or contracted compliant supply face a sourcing decision.

They can secure listed cells and wafers, or they can serve grandfathered projects through the separate lists, which narrows their market over time.

Cell manufacturers:

Cell makers become the buyers of List-III wafers. Many are building wafer capacity themselves.

Waaree Group CTO Mahesh Murthy requested advancing the ALMM List-III compliance deadline for solar wafers from June 2028 to June 2027.

Developers, EPC companies and procurement teams:

For these groups, the practical effect shows up in documents. Tenders issued after the cut-off must name List-III wafers. Contracts for modules must be able to prove traceability.

Teams that bid before the cut-off keep their exemption, which gives bid timing commercial value. That is an interpretation of the rules, not a recommendation to rush bids.

Supplier availability:

Bernhard Rack CEO of Agastya Energy said that eligibility is not availability. Much of the listed cell capacity today is captive, and wafers could follow the same pattern. Merchant supply, meaning wafers sold to third parties, is the figure to watch in the first year.

Solar Input cost:

The India solar wafer policy 2028 does not fix prices, and costs need not rise or fall in straight lines. Several factors will decide the outcome:

• Domestic production capacity and how fast plants ramp yields.
• Competition among the three or more independent suppliers the threshold requires.
• Supplier concentration, since early capacity may belong to integrated groups that use it themselves.
• Technology and wafer formats, as cell designs evolve.
• Procurement volumes, which affect plant utilization and unit cost.

Bernhard Rack argued that wafers are well under a tenth of the price of a DCR module. On that view, a 20-25 percent wafer premium would add roughly 2-3 percent at module level, though premiums stacking across wafers, cells and modules is the larger risk. Module factories already run at estimated 35-40 percent utilization.

Prabhakar Sharma, senior consultant at JMK Research, said India has added module capacity faster than the market can absorb it. That suggests ample downstream supply, which could restrain solar module prices in India in 2028 even if wafer costs rise.

For manufacturers, the opportunity is a protected market and a policy signal that supports financing of domestic solar wafer manufacturing. The challenge is cost parity with Chinese producers.

Also Read: Karnataka Manufacturing Industry 2026: Policy & Key Sectors