On January 30, Guosheng Size Energy Storage Technology (Jiangsu) Co., Ltd. was officially registered and established in the Jianye District of Nanjing.
With a registered capital of 20 million RMB, the new entity is jointly owned by Grand Sunergy Co., Ltd., which holds an 80% stake, and Grand Sunergy Tech Co., Ltd., which holds the remaining 20%. According to its registered business scope, Guosheng Size will focus on the research and development of energy storage technology, intelligent control system integration, and synergistic fields including marine and wind power generation.
In the current "zero-sum game" phase of the new energy industry, standalone photovoltaic (PV) module manufacturing or power station development can no longer sustain high premiums. Consequently, energy storage has transitioned from an optional "add-on" to a fundamental necessity as the critical link for regulating energy fluctuations.
Previously, Grand Sunergy Tech released its 2025 performance forecast, projecting a net loss attributable to the parent company of 325 million to 650 million RMB. After deducting non-recurring gains and losses, the projected net loss stands between 314 million and 639 million RMB—a significant widening of losses compared to 2024.
Facing the financial "pain points" brought about by pressure on its core PV business, the search for a second growth curve has become a matter of urgency. To this end, Grand Sunergy is accelerating the allocation of resources toward the energy storage sector and refining its industrial layout to proactively navigate industry cycle fluctuations.
This latest move into energy storage completes the missing "midstream" piece of Grand Sunergy’s full-chain industrial puzzle. Within the upstream segment, the Grand Sunergy group has already moved to acquire Fuyue Technology for lithium battery structural components and utilized Tieling Huanqiu to break into 10GWh solid-state battery manufacturing. Downstream, the company leverages the massive demand for storage pairings within Grand Sunergy Tech's extensive PV power station portfolio.
Now, with the entry of Guosheng Size—positioned for storage system integration and operations—the company has strategically occupied the midstream. This move successfully bridges the physical link from "cells and structural components" to "system integration" and finally to "terminal application."
Source：EnergyTrend
