Pylontech L260-HY 261kWh 125kW Outdoor Hybrid ESS Cabinet with Solis Inverter

The Pylontech L260-HY is a factory built outdoor energy storage cabinet for commercial and industrial sites, combining 261kWh of LiFePO4 battery storage with an integrated 125kW Solis three phase hybrid inverter in one enclosure. It is a complete solar battery storage kit for sites that need peak shaving, self-consumption and backup power without assembling separate racks, inverters, cooling and fire protection.

Key features

• Capacity, 261kWh nominal from five 52.25kWh Pylontech HM7A200L LiFePO4 modules, with 98% depth of discharge.
• Inverter, integrated 125kW Solis three phase hybrid inverter with 3/N/PE 230V/400V output.
• PV input, up to 250kW recommended array across 10 MPPTs (150V to 950V) and 20 strings.
• Backup switching, under 10ms to keep critical loads running during a grid failure.
• Cooling, liquid cooling with a 50% glycol solution, working temperature range -25°C to 55°C.
• Fire protection, combustible gas, smoke and temperature detection, explosion proof fan and aerosol suppression.
• Efficiency, 88% system round trip efficiency, with Modbus TCP/RTU communication for site EMS integration.
• Scalability, up to six cabinets in parallel, from 260kWh to 1560kWh and 125kW to 750kW.

Product overview

Five battery modules connect in series to form one high voltage string, 728V to 936V DC, linked to a control module that provides isolation, protection and houses the BMS. Pylontech uses a three level management structure: a BMU in each module monitors cell voltage, current and temperature; the BMS monitors the full string; the LEMS1000 local energy management system controls fire protection and cooling and communicates with the inverter or an upper level EMS.

The integrated Solis inverter manages PV, battery, grid and backup loads from one unit, with a generator input for sites running a diesel generator. The cabinet ships with corrosion class C3H as standard, with C5M available for coastal or harsh industrial locations. Allow for auxiliary power consumption of around 1.5kW and a cooling unit noise level of 75 dB(A) at 1m when planning a site.

Applications

Commercial and industrial peak shaving, demand charge reduction, solar PV self-consumption for businesses, farms and public buildings, backup power for critical commercial loads, time of use tariff arbitrage, and microgrids combining solar PV, battery storage and diesel generators. Suited to warehouses and factories with large rooftop or ground mount arrays.

Installation and safety notes

This is a commercial system and must be designed, installed and commissioned by qualified professionals, with a site assessment and system design carried out before ordering. The cabinet is rated IP55 for outdoor installation on a level concrete base capable of supporting up to 2.9 tonnes, with clearance for ventilation, cooling airflow and door access.

The system operates at high DC voltage, up to 936V on the battery string and up to 1000V on the PV input, so only trained personnel should work on it. Cable sizing, fusing, isolation, surge protection and earthing must comply with BS 7671. Connecting a system of this size to the grid requires a G99 application to your DNO, approved before installation.

What's included

• 1 x Pylontech OPTIM US L260-HY outdoor cabinet
• 1 x Solis 125kW three phase high voltage hybrid inverter, factory integrated
• 5 x Pylontech HM7A200L 52.25kWh LiFePO4 battery modules
• 1 x control module with integrated BMS
• 1 x LEMS1000 local energy management system
• 1 x liquid cooling system
• 1 x fire protection system with gas, smoke and temperature detectors, explosion proof fan, aerosol suppression and audible and visual alarm
• 1 x electrical box with MCCBs for grid and backup
• 1 x UPS for the BMS, LEMS and monitoring
• 1 x set of internal and external power and communication cables