Description
Extending battery lifespan with active liquid thermal regulation.
Pylontech OPTIM US L260-OMNI is a turnkey commercial AC-coupled storage station integrating a 125 kW bidirectional PCS with 260 kWh of closed-loop liquid-cooled LFP storage and aerosol fire protection, engineered for heavy industrial peak shaving and multi-cycle dynamic energy arbitrage.
125 kW / 260 kWh Turnkey Liquid-Cooled Station
Integrates 125 kW PCS, 260 kWh liquid-cooled battery racks, master BMS, and fire suppression in a single pad-mounted unit.
Industrial Closed-Loop Liquid Cooling
Precision liquid thermal distribution maintains cell temperature uniformity within ≤2.5 °C for extended battery cycle life (>8,500 cycles).
Drop-In Commercial AC Retrofit
Connects directly to existing commercial 400 V electrical panels without replacing existing solar PV inverters or altering roof wiring.
702 V – 936 V High-Voltage Operating Bus
Operates at high DC voltage with 98% depth-of-discharge, delivering >95% round-trip efficiency.
More product details
Air-cooled commercial storage stations develop thermal hot spots during heavy summer peak shaving. The L260-OMNI circulates liquid coolant directly through thermal plates beneath the large-format cells.
- Circulating liquid coolant maintains cell temperature differentials strictly within ≤2.5 °C across the container.
- Extends battery calendar life to over 8,500 cycles under continuous 0.5C charge and discharge.
- Integrated chiller/heater unit maintains optimal 20–25 °C cell temperatures across extreme ambient environments (-20 to +55 °C).

Pylontech OPTIM US
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125 kW high-speed power conversion for heavy factory machinery.
Shaving sharp demand spikes from industrial machinery requires high instantaneous power throughput. The L260-OMNI delivers up to 181 A of bidirectional AC current directly into the facility switchboard. Delivers 125 kW continuous AC power across all three phases (400 V AC, 181 A max). Direct 400 V AC grid synchronization eliminates rooftop DC string modifications. Multi-sensor aerosol fire suppression, combustible gas detection, and emergency pressure relief vents.
Fits a 950 mm yard slot
The cabinet is 950 mm wide and 2480 mm tall. Weight is 2.9 tons on the pad.
Grows to 1560 kWh across six cabinets
One to six cabinets step 260 to 1560 kWh. PCS power steps 125 to 750 kW.
Holds aerosol suppression at IP55
Aerosol suppression sits inside. C3 anti-corrosion is standard, C5 optional.
Technical data
Megawatt-scale liquid-cooled energy storage engineered for factory peak shaving and commercial microgrids.
125 kW / 260 kWh turnkey AC-coupled liquid-cooled storage with >8,500 cycle life.
Pre-engineered as a complete outdoor energy storage station, the OPTIM US L260-OMNI integrates a 125 kW bidirectional PCS with 260 kWh of liquid-cooled LFP battery storage. It connects directly to the facility's 400 V AC distribution board without modifying existing solar inverters, delivering high-efficiency peak shaving, demand charge reduction, and grid arbitrage.
- Turnkey Scale
- 125 kW / 260 kWh
- High-Voltage Bus
- 702–936 V
- Cycle Longevity
- >8,500
- IP55 Enclosure
- Turnkey Pad
Identity
- Battery type
- Li-ion (LFP)
- Isolation type
- Non-isolation
- Communication type
- Ethernet (Modbus TCP)
- Inverter type
- 125 kW
Battery
- Battery type
- Li-ion (LFP)
- Nominal capacity (kWh)
- 260
- Depth of discharge
- 98% (single string)
- Cycle life
- >8500
- DC voltage range (Vdc)
- 702 - 936 (single string)
- Maximum / continuous operation current (A)
- 200 / 157
- Round-trip efficiency at 0.5C
- >95%
Inverter / PCS
- Rated AC power (kW)
- 125
- Rated AC output voltage (Vac)
- 400
- Rated AC output frequency (Hz)
- 50
- Maximum AC current (A)
- 181
- Overload capacity
- 110%
- AC power factor
- 1.0 (lagging) ~ 1.0 (leading)
- CEC efficiency
- 98%
- Isolation type
- Non-isolation
- Inverter type
- 125 kW
- Inverter quantity 1 - 6 (kW)
- 125 / 250 / 375 / 500 / 625 / 750
Cabinet & Environment
- Dimensions W x D x H (mm), without inverter
- 950 x 1300 x 2480
- Weight (tons)
- 2.9
- Working temperature range (C)
- -25 to 50
- Protection class
- IP55
- Altitude (m)
- <=3000
- Humidity
- 5% - 95%
- Fire extinguishing
- Aerosol
- Cooling system
- Liquid cooling
- Cooling system consumption (kW)
- 2.56
- Anti-corrosion
- C3 (C5 optional)
System Configuration
- Maximum parallel number
- 6
- Communication type
- Ethernet (Modbus TCP)
- Operation logic
- Wide temperature range / ancillary service / electricity arbitrage / demand response / backup
- Cabinets 1 - 6 (kWh)
- 260 / 520 / 780 / 1040 / 1300 / 1560
Project fit
Where this model fits.
Scenarios that show which projects the Pylontech OPTIM US L260-OMNI belongs in, what to verify before quoting, and when another model is the better pick.
Heavy Industrial Manufacturing & Multi-Cycle Energy Arbitrage (100–250 kW Solar)

Manufacturing plants, cold storage warehouses, and large agricultural processing facilities seeking 260 kWh of liquid-cooled storage for heavy peak shaving and multi-cycle daily trading.
260 kWh liquid-cooled storage delivers high energy density, 125 kW continuous power, and >8,500 cycle durability in a single 2.9-ton pad-mounted enclosure.
- BoundaryIf the facility operates on a lighter 1-cycle-per-day schedule and prefers a lower starting capital cost, step down to the A200-OMNI (203.8 kWh Air-Cooled). ---
- If the facility operates on a lighter 1-cycle-per-day schedule and prefers a lower starting capital cost, step down to the A200-OMNI (203.8 kWh Air-Cooled). ---
Documents
Pylontech OPTIM US L260-OMNI datasheet (EN) Pylontech OPTIM US L260-OMNI DatasheetProduct questions
What are the physical dimensions and weight of the L260-OMNI station?
950 × 1300 × 2480 mm; approx. 2.9 tons (2,900 kg). The outdoor container measures 950 mm wide × 1,300 mm deep × 2,480 mm high and weighs approx. 2.9 metric tons (including batteries). It requires a reinforced concrete foundation pad with crane placement.