- Scalable to 4.18 MWh: Up to 16 cabinets in parallel, 2 MW / 4.18 MWh
- Liquid-cooled: ≤ 3 °C pack temperature difference
- Unified control: One EMS manages every cabinet, on site and in the cloud
Nov-L261S Key Advantages
NOV-L261S integrates a 261 kWh LFP battery, 125 kW PCS, liquid cooling, fire suppression and EMS in one outdoor cabinet, built for AC-side parallel expansion. Install what you need today and add cabinets later without redesigning the system.
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1 Scale in parallel: From a single 261 kWh cabinet up to 16 units (2 MW / 4.18 MWh), AC-coupled.
2 Lower upfront investment: Size phase one to today’s demand and add cabinets when the business case is proven.3
3 Grid-tied and off-grid: PQ / VF / VSG modes for peak shaving, backup power, island operation and black start.
4 Long service life: 8,500 cycles at 90% DOD, with liquid cooling keeping pack temperature difference within 3 °C.
5 Built-in safety: Pack-level fire detection with aerosol suppression, dehumidification and transformer isolation.
Parameters
Supports 80 kW and 125 kW configurations with VDE-compliant PCS for grid-connected applications.
Battery
- Battery Type: LiFePO₄ (LFP), 314 Ah cells
- Rated Energy: 261.2 kWh per cabinet
- Modules: 5 × 52.24 kWh
- Configuration: 260S1P (5 × 52S1P)
- Rated Voltage: 832 V
- Voltage Range: 728 – 936 V
- Cycle Life: 8,500 cycles (25 °C, 0.5C/0.5C, 90% DOD, 80% EOL)
Performance
- Rated Power: 125 kW per cabinet
- Max Current: 180 A
- PCS Efficiency: 98.6% (max)
- Charge / Discharge Rate: ≤ 0.5P
- Grid Voltage: 400 V AC, 3P3W+PE or 3P4W+N+PE
- Frequency: 50 / 60 Hz
- Power Factor: −1 (leading) ~ +1 (lagging)
- THDi: ≤ 3% (full load)
System
- Parallel Operation: Up to 16 units (2 MW / 4.18 MWh)
- Expansion Method: AC-coupled, whole-cabinet parallel
- Operating Modes: Grid-tied and off-grid (PQ / VF / VSG)
- Functions: Peak shaving, zero export, demand response, PV self-consumption, backup
- Options: MPPT (PV input), STS for fast grid / off-grid switching
- Isolation: Industrial transformer isolation
- EMS: LCD display, cloud platform, web and app
- Communication: CAN / RS485 / Ethernet
- Fire Protection: Pack-level detection with aerosol suppression
Environment
- Cooling Method: Liquid cooling, pack temperature difference ≤ 3 °C
- Operating Temperature: −30 °C ~ +60 °C
- Humidity: 0 – 95% (non-condensing)
- Altitude: ≤ 4,000 m (derating above 2,000 m)
- Noise: < 65 dB (at 1 m)
- Protection Level: IP54, outdoor
- Footprint: approx. 1.6 m²
- Warranty: 10+ years (subject to warranty terms)
Global Certifications
Solar & Energy Storage
FAQ
How many NOV-L261S cabinets can be connected in parallel?
Up to 16 cabinets can run in parallel on the AC side, for a total of 2 MW / 4.18 MWh. Each cabinet is a complete 125 kW / 261 kWh system, so you can start with one unit and add more later. One EMS controls all cabinets as a single system.
Can NOV-L261S keep running during a grid outage?
Yes. NOV-L261S supports both grid-tied and off-grid operation. With the optional STS, the system switches quickly to off-grid mode and keeps critical loads running. Grid-forming (VF / VSG) modes also support island operation and black start.
Project Support
Need a Tailored Energy Storage Solution?
Whether you’re planning a commercial project or looking to become a partner, our team is ready to help with system sizing, quotations and technical support. Email ：in@novenergy.cn