On June 4, 2026, Shenzhen tian-power Digital Energy Co., Ltd. delivered a keynote speech titled "From 'Passive Defense' to 'Value-Driven': How BMS Reshapes the Full Lifecycle Economics of Energy Storage" at the SNEC PV+ 19th International Solar Photovoltaic and Smart Energy (Shanghai) Conference. The speech was given by Shao Lei, R&D Director of tian-power, who systematically elaborated on energy storage market trends and BMS pain points, and proposed new approaches to breakthrough BMS technologies for energy storage. This was not only a technology sharing session, but also a deep reconstruction of the underlying logic of energy storage economics.

In his speech, Shao Lei pointed out that according to BloombergNEF forecasts, global cumulative energy storage capacity by 2035 will be 8 times that of 2025. In 2025, global new-type energy storage newly added installations exceeded 300GWh, a year-on-year increase of approximately 50%, setting a historical record. In terms of regional landscape, China and the United States continue to dominate the global market, while emerging markets such as Europe, the Middle East, Australia, and Latin America are accelerating their rise. The global new-type energy storage market is evolving from a "bipolar drive" to "multi-polar growth."

However, with the rapid iteration of large cell technologies (500Ah+, 600Ah+), the utilization efficiency of energy storage assets has become a core indicator. Although BMS accounts for a small proportion of hardware costs (2-10%), it is a key component that determines the safety baseline, lifespan ceiling, and revenue ceiling of energy storage systems throughout their entire lifecycle. The market's demand for BMS with guaranteed full lifecycle economics is necessary and urgent.

Based on years of industry experience, tian-power systematically analyzed the pain points of energy storage BMS in various scenarios:

·        Residential energy storage: pain points in system aggregation, safety assurance, refined management, remote operation and maintenance, and service.

·        Data center energy storage: pain points in lithium-sodium battery applications, AI millisecond-level load fluctuations, architecture reliability, and the transition from backup power to "backup power + peak shaving" applications.

·        Commercial and industrial energy storage: pain points in electricity spot trading demand, the impact of large-capacity cells, and the integration needs of solar-storage-charging.

·        Large-scale energy storage: pain points in independent power station grid connection, grid-forming technology requirements, active balancing, predictive operation and maintenance, and digital twins.

Energy storage BMS needs to upgrade from a "passive defense" supporting function to a "value-driven" important function.

Technology Breakthrough: Tianbangda's Eight Core Capabilities of Energy Storage BMS

Facing industry challenges, tian-power proposed a triple-integration technology path of "BMS + Power Electronics + AI Algorithms," comprehensively moving from "passive protection" to "active value creation."

·        Monitoring and Perception: Self-developed and original iCCS cell safety monitoring technology, starting from cells and modules to build a comprehensive perception + monitoring high-cost-performance product.

·        Speed and Protection: Self-developed BMS modules at all levels support high-speed communication and processing capabilities. Multi-level protection strategies start from cell and module data to achieve high real-time monitoring and safety assurance.

·        Active Balancing: Targeting the industry challenge of consistency control for large-capacity cells, Tianbangda launched an independently patented active balancing technology using a bidirectional isolated DC-DC topology, breaking through the inefficiency bottleneck of traditional passive balancing at only 0.1A.

·        Active Balancing Strategy: Combined with an adaptive full-time balancing algorithm, it dynamically adjusts balancing strategies based on multi-parameter factors such as SOC difference estimation and temperature monitoring, ultimately significantly improving the available capacity and operating efficiency of the energy storage system.

·        Intelligent Lithium Battery: Independently developed intelligent lithium battery BMS adopts high-efficiency soft-switching multi-phase interleaved DCDC + DSP digital control, realizing intelligent voltage boosting, intelligent power usage, intelligent mixed use, intelligent charging, and intelligent parallel operation functions.

·        SOC Estimation: Optimized SOC algorithm solutions, including OCV correction, ampere-hour integration, temperature correction, dynamic voltage fuzzy correction, IC correction, full charge-discharge correction, and EKF/model estimation algorithms.

·        SOH Estimation: Completed through joint calculation by the BCU end and the cloud. The BCU end uses FCC, two-point method, and model-based approaches to achieve SOHC estimation. The cloud performs statistical regression on the SOHC historical values uploaded by the BCU, achieving SOHC calculation accuracy of ≤±3% and SOHR calculation accuracy of ≤±5%.

·        AI and Operation & Maintenance: Through cloud-edge collaboration, intelligent diagnosis migrates from the cloud to local three-level master control, replacing "second-level uncertainty" with "millisecond-level determinism," achieving safety warnings and warning protection. Based on a "data + mechanism" hybrid-driven AI algorithm, it builds an intelligent energy storage diagnosis platform, helping energy storage systems achieve a capability leap in the 2.0 AI era.

Tian-power's core capabilities in energy storage BMS are not a simple stacking of technologies, but rather a rethinking of the essence of energy storage BMS: with "balancing intelligence" as the technical core and "safety and revenue" as the value orientation.

We deeply understand that every technological leap from "passive" to "active" — whether it is millisecond-level AI diagnosis or microampere-level active balancing — must ultimately translate into quantifiable benefits for customers. Looking ahead, tian-power will continue to promote the evolution of energy storage systems toward higher integration, higher efficiency, and higher safety, and work closely with industry peers and partners to jointly advance "Smart Storage Future" from concept to reality.