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JA has expanded its European commercial and industrial battery range with the JAPlanet Fusion, a DC-coupled hybrid system, and an updated AC-coupled JAPlanet 2.0. Both are rated at 125 kW/261 kWh; JA lists different backup, parallel-operation and temperature specifications for the two systems.
JA has expanded its European commercial and industrial battery range with the JAPlanet Fusion, a DC-coupled hybrid solar-and-storage system, and the updated AC-coupled JAPlanet 2.0. Both systems are rated at 125 kW and 261 kWh; the company says pre-orders in Europe are available from the second half of September 2026.
The JAPlanet Fusion combines an inverter, battery and backup functions in one cabinet. Its specifications allow up to 250 kW of solar input across 20 strings and 10 maximum power point trackers. The system’s AC output can be configured to meet a site’s permitted grid-export limit, a feature relevant to businesses adding storage where export capacity is restricted. JA announced the Fusion in China in June; the latest announcement confirms European availability, specifications and certifications.
JA says an integrated static transfer switch detects a grid failure and switches the Fusion to off-grid operation within 10 milliseconds. The company lists parallel operation for up to 10 units on-grid and six off-grid. Its stated safety and thermal features include liquid cooling, temperature, smoke and gas monitoring, aerosol fire suppression and redundant ventilation. JA also says the system has undergone system-level UL 9540A testing.
The JAPlanet 2.0 is an updated version of JA’s AC-coupled system, retaining the 125 kW/261 kWh rating and using 314 Ah cells with liquid cooling. Its specification sheet lists maximum round-trip efficiency above 90%, compared with 90% on the previous sheet. JA says it can provide rated output at ambient temperatures up to 50°C; the listed operating range is −25°C to 55°C. Other listed features include black-start capability and fully unbalanced three-phase output in backup mode.
Storage Options for Constrained Sites
The expanded range gives European commercial and industrial customers two configurations at the same stated power and energy rating: a DC-coupled system that integrates solar, storage and backup, and an AC-coupled system designed to work with an existing or separate solar installation. That distinction can affect how a project is designed, especially when a business is considering adding batteries to an operating solar site.
JA’s stated export-limit control and backup functions address two practical concerns for some sites: grid restrictions on exported electricity and interruptions to grid supply. The company’s European technical lead, Ignacio Espinosa Gil, said businesses are seeking more control over energy use and resilience against outages, while upgrading older solar assets can be complicated by grid constraints. These are the company’s description of customer needs; the announcement does not provide independent performance results or customer deployment data.
For buyers comparing the systems, the published specifications point to differences beyond coupling. JA lists faster integrated backup switching for the Fusion, while the 2.0 specification describes an external compatible transfer switch with switching within 20 milliseconds. The 2.0 sheet also lists support for up to 20 units in parallel on-grid and nine off-grid. Those figures may inform project planning, but actual suitability will depend on site design, grid requirements and the final equipment configuration.
Two Coupling Designs, One Rating
Battery systems are commonly described as DC-coupled or AC-coupled according to how the battery connects with solar generation and the site’s electrical system. JA describes the Fusion as a hybrid DC-coupled system, placing solar, storage and inverter functions together. The JAPlanet 2.0 is AC-coupled, a configuration that can be considered for projects where solar generation and battery storage connect on the AC side.
The announcement presents the Fusion as a newly available European product after its China announcement in June. The JAPlanet 2.0 is an update to an existing product rather than a new coupling format. Its specification sheet adds or changes published details including the efficiency figure, temperature capabilities, parallel-unit limits, cabinet weight and remote service functions.
According to the new sheet, the 2.0 cabinet weighs about 2,700 kilograms, down from about 2,800 kilograms in the earlier specification. JA says its thermal-management strategy reduces auxiliary power consumption by 20% compared with conventional systems. The company also lists remote diagnostics and over-the-air updates. These figures and features are manufacturer statements; the source report does not provide test methods or independent comparisons for them.
Performance Evidence Still Limited
The announcement and product sheets provide manufacturer specifications, but the source report does not include independent test results, field operating data, pricing, warranties, delivery schedules or named European customers. The precise meaning and scope of the listed certifications are not detailed beyond JA’s statements about European certifications and UL 9540A testing.
Some performance claims also lack comparison detail in the published material summarized by the report. JA says the 2.0’s thermal management cuts auxiliary power use by 20% against conventional systems, but the comparison system and testing conditions are not identified. The listed round-trip efficiency is a maximum; operating results at a particular site may depend on conditions and system design. The report does not establish how the 2.0’s newer figures were measured against the prior model.
The stated pre-order window begins in the second half of September 2026, but the announcement does not specify order terms, quantities, regional delivery dates or when shipments will start. Buyers will also need project-specific confirmation of grid compatibility, backup arrangements and applicable local requirements.
European Orders and Delivery Details
JA’s stated next commercial step is European pre-order availability, which the company placed in the second half of September 2026. The source report, dated September 29, says that timing implies pre-orders may already be possible. It does not confirm that orders have been placed or give a schedule for deliveries.
Further information from JA or its European sales partners would clarify pricing, availability by country, warranty terms, certification details and commissioning support. Project developers considering either battery will need to compare the published specifications with site loads, export limits and required backup performance. Those details are not provided in the announcement, so the products’ fit for individual projects remains a matter for site-level assessment.
Key Questions
What did JA announce?
JA confirmed European availability and specifications for the JAPlanet Fusion, a DC-coupled hybrid solar-and-storage system, and published updated specifications for the AC-coupled JAPlanet 2.0.
What are the systems’ rated capacities?
Both products are listed at 125 kW of power and 261 kWh of energy. The Fusion accepts up to 250 kW of solar PV input, according to its specifications.
How do the Fusion and JAPlanet 2.0 differ?
The Fusion is a DC-coupled system that combines solar, storage, inverter and backup functions in one cabinet. The JAPlanet 2.0 is AC-coupled and is the updated version of JA’s existing AC system. Their published backup-switching and parallel-operation specifications also differ.
When can European customers order the systems?
JA stated that pre-orders would be available in Europe from the second half of September 2026. The source report does not give country-by-country availability, order terms or shipment dates.
Have the performance claims been independently verified?
The source material reports JA’s product specifications and company statements, including efficiency, switching-time and auxiliary-power claims. It does not provide independent test results or field data to verify those figures.
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