MANY MINDEDChina called time on the solar price war
On July 27 China's market regulator and its industry ministry released a document with a title built to be forgotten: General Rules for the Cost Accounting Model of the Photovoltaic Industry. It is voluntary. All it does is fix one agreed method for calculating what a kilogram of polysilicon, a wafer, a cell and a module actually cost to produce. Four days later the State Administration for Market Regulation called manufacturers to a price-compliance meeting in Yancheng, Jiangsu, and told them to strengthen their cost accounting and build internal price-compliance systems.
No minimum price was set. There is no floor, no fine, no rule. SAMR's stated instruments are compliance reminders, regulatory interviews and administrative guidance, with a warning that serious market disruption could bring formal enforcement later. The China Photovoltaic Industry Association was handed the job of promoting the standard and steering firms off low-price dumping.
The market read it immediately. Several polysilicon producers pulled their quotes over the weekend. On August 3 the most-traded polysilicon futures contract rose the daily limit and closed 8.99 percent higher at CNY 35,890 a tonne, about $5,290. Tongwei and Flat Glass both closed limit-up in Shanghai.
Solar is the best receipt this movement has. Module prices fell from about $106 a watt in 1976 to about $0.38 in 2019 — roughly 99.6 percent, on the long-run series Our World in Data maintains — and there is a mechanism under that line rather than just a trend: Wright's law, roughly a 20 percent price drop for every doubling of cumulative capacity installed. Learning, scale, engineering. That part is banked, and no meeting in Jiangsu can repeal it.
The last stretch is where the care is required. On a different and much narrower benchmark, OPIS assessed mainstream Chinese TOPCon modules at $0.109 a watt FOB China on July 28, still falling that week, with forward contracts through the first quarter of 2027 priced no higher. The regulator's stated premise for intervening at all is that some of that price sits below what the modules cost to make — firms selling at a loss to hold share. If that premise is right, part of the cheapest energy in human history has been funded by manufacturers' shareholders. Shareholder funding is not a cost curve. It is a discount, and discounts end.
So the honest reading of this week is a separation, not a reversal. Two days ago this site argued that most of the 80 percent collapse in AI token prices was not a discount but a measured curve. Solar is the same test run the other way: here, some of it was a discount. If Chinese modules settle higher, nothing that took $106 to $0.38 has been un-learned — what ends is the layer stacked on top of it. A movement that only reports the falling number is not tracking a curve. It is cheering.
Watch three things. Whether a voluntary standard grows teeth, because nothing here is enforceable yet. Whether capacity actually exits: pv magazine's own account notes polysilicon supply is still rising, inventories are high, and demand from wafer makers and downstream projects is weak, so the rally resolved none of the underlying imbalance. And where module prices settle once below-cost selling stops — above the long-run trend line, or back onto it. That last question is the only one that matters, and it will take quarters to answer, not days.
The demand side is its own puzzle. China's National Energy Administration reported 72.07 GW of new solar in the first half of 2026, down 66 percent year on year. That comparison is against a 2025 half inflated by a rush to connect projects before market-based pricing arrived, and the 2026 figure still sits above the average for the same months in 2021 through 2024. Nothing in this market moves in a straight line, including the price.
ENERGY is about a third of the way to free by our count. This week moved the invoice, not the destination. Those are two different numbers. Step inside.
Source: pv magazine · 2026-08-04