C&I BESS
ESS-261-S
125kW / 261kWh
ESS-261-S is a 125kW/261kWh commercial and industrial energy storage system featuring an All-in-One design and modular configuration for flexible deployment and capacity expansion. It supports both DC and AC coupling, allowing seamless integration with different PV and energy storage system architectures. With on-grid and off-grid switching capabilities, the ESS-261-S provides seamless backup power for reliable energy supply. Remote software upgrades and parameter configuration simplify system operation and maintenance. The system supports multiple operating modes, including self-consumption, peak shaving, and time-of-use (TOU) energy arbitrage, enabling flexible optimization of energy storage operation according to different electricity consumption patterns. This helps maximize solar energy utilization, reduce electricity costs, and improve overall energy efficiency.
-
All
All-in-one design,
modular configuration -
3L/N /PE
3L/N /PE output,
transformerless design -
100%
Support 100%
unbalanced loads
Product Features
Efficient PV integration, support DC coupling or AC coupling 
Support 110% long-term overload 
Integrated STS module, seamless switching between on-grid and off-grid modes, switching time<20ms 
User-friendly configurable monitoring platform
Parameter List
| Rate Power [kW] | 125 |
| Nominal Energy [kWh] | 261 |
| Battery Technology | LFP(LiFePO4) |
| Switch time | <20ms |
| Max.AC Input Power [kW] | 175 |
| Max. AC Input Current [A] | 250 |
| Rated AC Output Power [kW] | 125 |
| Rated AC Output Current [A] | 180 |
| Rated AC Voltage [V] | 400±10%, 3L/N/PE |
| Rated Frequency [Hz] | 50/60 |
Related Products
C&I BESS
125kW / 261kWh
ESS-261-S is a 125kW/261kWh commercial and industrial energy storage system featuring an All-in-One design and modular configuration for flexible deployment and capacity expansion. It supports both DC and AC coupling, allowing seamless integration with different PV and energy storage system architectures. With on-grid and off-grid switching capabilities, the ESS-261-S provides seamless backup power for reliable energy supply. Remote software upgrades and parameter configuration simplify system operation and maintenance. The system supports multiple operating modes, including self-consumption, peak shaving, and time-of-use (TOU) energy arbitrage, enabling flexible optimization of energy storage operation according to different electricity consumption patterns. This helps maximize solar energy utilization, reduce electricity costs, and improve overall energy efficiency.
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Product Video
Related FAQs
Remote data monitoring and control from the app in real-time, with the ability to change settings and firmware upgrades remotely, understand pre-alarm messages and faults and keep track of real-time developments.
Intelligent temperature management is changed in battery temperature during system operation, the system will automatically turn on the air conditioning to adjust the temperature according to the temperature to ensure that the whole module is stable within the operating temperature range.
The highly accurate SOX algorithm, using a combination of the ampere-time integration method and the open-circuit method, provides accurate calculation and calibration of the SOC and accurately displays the real-time dynamic battery SOC condition.
