NextFin News - China’s solar giants, long the undisputed masters of the global photovoltaic market, are aggressively pivoting toward battery storage as a brutal price war in their core business erodes margins and forces a strategic reckoning. On Thursday, LONGi Green Energy Technology, the world’s largest solar manufacturer, confirmed its acquisition of PotisEdge Co., a Suzhou-based provider of advanced energy storage systems. The move follows a disastrous 2025 fiscal year for the industry, during which JinkoSolar reported significant net losses despite record shipment volumes, underscoring a "volume-up, profit-down" trap that has left even the most efficient players reeling.
The shift is born of necessity rather than mere opportunism. Solar module prices have hovered at historic lows throughout early 2026, exacerbated by a massive capacity overhang and the expiration of a 9% value-added tax (VAT) rebate on Chinese exports that took effect on April 1. This policy shift has effectively raised the cost of Chinese panels for international buyers, further squeezing the thin margins of manufacturers. In response, companies like JinkoSolar and Trina Solar are repositioning themselves as integrated energy solution providers. JinkoSolar Chairman Xiande Li recently stated that while the solar business remains under pressure, the company expects its energy storage shipments to more than double in 2026, serving as the primary engine for a return to profitability.
Data from the first quarter of 2026 suggests this pivot is gaining traction. Chinese energy storage firms secured 71.03 GWh in new overseas orders during the first three months of the year, according to TrendForce. Of this total, 58.55 GWh were for complete energy storage systems, a high-value segment where solar manufacturers hope to leverage their existing customer relationships with utility-scale power plant developers. Europe remains the primary battleground, accounting for nearly 20 GWh of these new orders, as the region seeks to balance its grid against an increasingly volatile supply of renewable energy.
However, the transition is not without significant friction. Liu Hanyuan, Chairman of Tongwei Solar, noted at a recent industry conference that while the levelized cost of solar power in China has remained below coal-fired generation for years, the "intermittency tax"—the cost of adding storage to make solar dispatchable—remains a hurdle for mass adoption. Furthermore, the battery sector is itself facing a looming supply glut. Lithium-ion battery prices, which some analysts at LinkedIn Research suggest could face a 15-17% increase later this year due to tightening export frameworks, remain volatile. This creates a precarious situation where solar makers are fleeing one oversupplied market only to enter another that is rapidly maturing and consolidating.
The competitive landscape in storage is also far more crowded than the solar market of a decade ago. Solar manufacturers are not just competing with each other; they are facing off against established battery titans like CATL and BYD, who possess deeper vertical integration in cell chemistry and massive economies of scale. While solar makers excel at the "system" level—integrating inverters, software, and racks—they often remain dependent on their rivals for the underlying battery cells. This dependency limits their ability to control costs as effectively as they once did in the polysilicon-to-module value chain.
Geopolitical headwinds add another layer of complexity to this industrial migration. U.S. President Trump’s administration has maintained a hawkish stance on Chinese green technology, with tariffs on lithium-ion batteries set to rise to 25% this year. This has forced Chinese firms to localize production, as seen in Hithium Energy Storage’s recent 400 million euro investment in a Spanish manufacturing plant. For the embattled solar makers, the move into batteries is a high-stakes gamble that they can replicate their manufacturing dominance in a more complex, regulated, and politically sensitive asset class. Success is far from guaranteed, but with solar margins currently near zero, there is little choice but to evolve.
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