On June 10, CALB announced the official signing of a 220MWh energy storage system procurement agreement with Japan’s GRF Corporation. The two parties will carry out in-depth cooperation in core areas such as grid-side energy storage in Japan, renewable energy supporting storage, and data center power supply assurance. This signing signifies a further deepening of CALB’s footprint in Japan’s high-end energy storage market. CALB signs deal with Japan’s Kitahama GRF Corp. This agreement is not the first cooperation between CALB and Japanese companies. In March of this year, CALB signed an agreement with Japanese energy storage developer Namchabaruwa Co., Ltd. for a 380MWh project, equipped with CALB’s “Zhijiu” energy storage batteries. Together with this new 220MWh order, CALB’s cumulative energy storage orders in the Japanese market in 2026 have reached 600MWh. CALB signs deal with Namchabarwa Co. It is worth mentioning that the energy storage business has now become a core growth engine for CALB. Data shows that in 2025, CALB’s revenue from energy storage system products and other sources reached 14.1 billion RMB, an increase of 71.9% from 8.201 billion RMB in 2024, with its share of total revenue rising from approximately 27% to 31.8%. Supporting the growth of its energy storage business, since 2025 CALB has launched the construction of multiple production bases in Changzhou (Jiangsu), Chengdu (Sichuan), Xiamen (Fujian), and Portugal, adding a total of more than 75GWh of planned new capacity. CALB factory CALB’s intensive expansion is a microcosm of the overseas push by China’s energy storage industry. Data from the China Energy Storage Alliance (CNESA) shows that in 2025, Chinese energy storage companies added 366GWh of new overseas orders, a year-on-year increase of 144%. Orders surged in the second half of the year, covering more than 60 countries and regions worldwide, with accelerating potential in emerging markets such as the Middle East, South America, and Southeast Asia. More than 70 Chinese energy storage companies have gone global, with the entire industry chain participating in this overseas push, and battery companies remain the main force. CATL becomes UAE RTC supplier Beyond CALB, leading Chinese energy storage companies have also secured massive overseas orders. CATL has been selected as the preferred battery energy storage system supplier for the UAE’s RTC project, which includes a total capacity of 19GWh of battery energy storage systems. BYD Energy Storage signed a contract with Saudi Electricity Company for the world’s largest grid-side energy storage project, with a capacity of up to 12.5GWh. Chu Neng New Energy signed strategic cooperation agreements with Egypt’s WeaCan and Kemet for a 6GWh energy storage project, and plans to jointly build an energy storage battery factory in Egypt. TrinaStorage’s cumulative global energy storage system shipments exceeded 18GWh in 2025, with over 10GWh of overseas orders in hand.
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