Falling Wafer Prices Hands Indian Cell Makers a Margin Windfall — And a Dilemma

The steady grind lower in Chinese wafer prices resumed last week, and few markets have more riding on the trend than India’s. According to the latest OPIS Global Solar Markets Report, free-on-board China prices for M10 wafers slipped to $0.130 per piece, with 210R wafers at $0.141 per piece — weekly declines of 0.76% and 1.40% respectively. Market participants attribute the fall to a familiar cocktail: abundant supply, weakening downstream demand and softening polysilicon prices. Upstream, the picture is no brighter for Chinese producers. Data from the Silicon Industry Branch of the China Nonferrous Metals Industry Association shows n-type recharge polysilicon averaging RMB 32,700 per tonne in early July, with granular silicon at RMB 32,000 — both at or below the cash costs of most manufacturers. With idled lines restarting during the hydropower-rich rainy season, monthly output is expected to cross 100,000 tonnes against demand of roughly 91,000 tonnes, adding to an inventory mountain already estimated at over 500,000 tonnes. Most Chinese cell producers, barring one leading player, have cut operating rates since the start of July. The India Arbitrage For Indian manufacturers, the timing is almost poetic. Since June 1, ALMM List-II has mandated domestically produced solar cells for covered projects, handing Indian cell makers a protected market at precisely the moment their principal input — imported Chinese wafers — keeps getting cheaper. The spread between a falling global wafer price and a policy-supported domestic cell price is the widest structural margin opportunity the industry has seen, even after accounting for the leeway allowed by the government till December 2026. The beneficiaries are lining up. Avaada Electro operationalised the first 3 GW phase of its 6 GW TOPCon cell facility in Nagpur just last week. Emmvee Photovoltaic’s record Q1 FY27 results — PAT up 103% with cell utilisation at 83% — offered an early demonstration of what cheap wafers plus protected cell pricing can do to a P&L. Waaree, Adani Solar and Tata Power’s, Websol’s cell lines sit on the same tailwind. The ALMM List-III Question The dilemma arrives with ALMM List-III, which is expected to extend domestic content mandates to ingots and wafers from June 2028. Manufacturers weighing multi-thousand-crore ingot-wafer investments ranging from Reliuance to Waaree to Emmvee, Saatvik and more have targeted backward integration in one or more phases, must underwrite capex against a global benchmark price of $0.13 a piece, set by an industry selling below cost. Every week the glut from the China impact persists, the implied subsidy burden or price premium required to make Indian wafers viable grows. Beijing is not standing still either. China has notified mandatory energy-consumption standards across polysilicon, wafers, modules and inverters, effective from January, that could force a supply-side cleanup — the long-awaited capacity rationalisation that would lift prices and, ironically, improve the business case for Indian wafer fabs. There is a demand-side wrinkle too. The recent ALMM List-II exemption for net metering and open access projects commissioned by December 31, 2026 has thrown a lifeline to module makers sitting on non-DCR inventory but every module sold under that exemption is one less domestic cell consumed, softening near-term cell demand even as capacity ramps. The cell market’s true supply-demand test arrives in January 2027, when the exemption lapses and utility-scale, rooftop and open access demand all converge on domestic lines. For now, Indian cell makers should bank the margin while it lasts, and policymakers should watch the wafer tape as closely as the manufacturers do. The cost curve that is making today’s quarterly results impressive is the same one that will decide whether ALMM List-III launches into a headwind or a tailwind.