In August 2026, China’s energy storage installation data sent a key signal: the industry is undergoing a profound shift from the “mandated co-construction era” to the “market era.”
Independent Storage Takes the Lead
In August, domestic newly commissioned new energy storage projects totaled 3.76 GW / 11.42 GWh, down 27% and 35% month-on-month. But gauging whether an industry is hot cannot rely solely on month-on-month figures. Energy storage project grid-connection schedules are tightly linked to the concentrated commissioning cycle of renewable energy and the summer peak-power-supply window. July is typically the annual peak, with many projects completing acceptance and commissioning ahead of the summer peak. August’s decline is more a normal correction caused by construction cycles—not weakening demand.
To judge industry direction, look at year-on-year growth rates, cumulative scale, and project pipelines, rather than single-month month-on-month changes. Since June, monthly new energy storage installations have exceeded the same period last year for three consecutive months; August’s year-on-year growth of 13% (capacity) and 20% (energy) indicates the demand base remains solid.
The most significant change in August’s data lies in the application structure.
Grid-side independent storage added 3.33 GW / 10.51 GWh, surging 129% and 152% year-on-year, with only a slight month-on-month drop of 3% and 10%. It accounted for 88.6% of the month’s total new capacity—22 percentage points higher than July and 45 percentage points higher than the same period last year.
A share nearing 90% means independent storage has transitioned from a “supporting role” to the “main protagonist.” What makes this even more worth examining is the reason behind it: capacity compensation mechanisms have taken effect in some regions, capacity value now has a price, return expectations are clear, and business models are initially closing the loop. When capital is willing to pay for the capacity value of a single kWh, energy storage truly gains independent economic status.
Power-Side Distributed Storage Mandates Ease
On the other side of the spectrum, as independent storage heats up, power-side storage cools down.
In August, power-side new installations totaled 228 MW / 388 MWh, down 83% and 91% year-on-year, and 84% and 92% month-on-month. Among them, renewable energy co-construction projects accounted for 69.7% of power, with a corresponding scale of 159 MW / 333 MWh—a year-on-year decline exceeding 80%.
The sharp decline is primarily driven by policy. Multiple regions have adjusted their distributed storage policies, no longer making it a prerequisite for wind and solar projects to connect to the grid. The “loosening” of mandatory distributed storage is short-term pain for the power side, but a necessary step for long-term industry health.
At a deeper level, lifting mandatory distributed storage does not mean energy storage demand disappears—its form has simply changed. Demand has shifted from “passive, following renewable energy grid-connection schedules” to “active, driven by return expectations,” with resources flowing toward projects with genuine economic value. Policy subtraction is industry addition.
Clear Regional Divergence
Energy storage flows where it can be “priced.” The August map shows this clearly: “one high,” “one new,” “one slowing”—all telling the same story.
“One high” is North China: added 2.23 GW / 7.47 GWh, accounting for 65% of national energy installations. Inner Mongolia alone contributed 4.01 GWh, with an average duration of 4 hours—energy scale exceeding one-third of the national total. Why so strong? The main reason lies in the Mengxi (Western Inner Mongolia) power market—discharge compensation, spot trading, diverse revenue channels, and profitable projects.
“One new” is Sichuan. While traditional markets collectively faced pressure, a new growth pole emerged: the urgent need for enterprises to reduce electricity costs supported 60 MW / 240 MWh of new user-side installations. Sichuan’s new energy and capacity scale ranked first nationwide on the user side for two consecutive months.
“One slowing” is Jiangsu, Zhejiang, and Guangdong. Time-of-use electricity price adjustments, narrowing peak-val spreads, and lengthening project payback periods have slowed growth in these traditional powerhouse markets, continuing to pressure user-side commercial and industrial storage.
The same track, two different climates. Markets relying on policy subsidies are shrinking; markets driven by mechanism-based profitability are growing.
Narrowing Spot Spreads Bring New Challenges
But choosing the right place is only an entry ticket. Even the most mature Mengxi market is showing pressure—continuously narrowing spot spreads are diluting independent storage’s core revenue source. Projects that rely on spot spreads for their business models must redo their investment calculations and discount their profitability expectations.
Pressure is not only on the revenue side. Grid connection and revenue mechanisms remain real-world constraints for project implementation. In the second half of the year, previously approved projects are entering concentrated construction, so growth potential remains. But the ceiling on growth is determined not by project pipelines, but by the depth of power market reform and the boundaries of grid absorption capacity. In the market era, operational capability is what matters.
August’s data tells one story: energy storage has shifted gears. Month-on-month decline is just rhythm; structural change is the trend— independent storage takes over, distributed storage mandates ease, regional divergence widens. The co-construction era is ending; energy storage is now fighting for itself. Whoever first cracks the business model will win this cycle.
Source: China Energy News Network
Original URL: https://www.cpnn.com.cn/news/zngc/202609/t20260918_1916147.html
Source:China Energy News Network