120 kWh storage system Deye GE-F120-2H2

It is an energy cabinet for companies: in a single metal structure, placed outside on a platform, sit the batteries, the power electronics and the brain that decides when to charge and when to discharge. Its role is simple: it gathers energy when it is cheap or when the panels produce in excess and gives it back at the consumption peak, when energy costs a lot or when the company risks exceeding the contracted power. It comes assembled and tested from the factory, so on site only the connection remains, not building the system piece by piece.

The 122.8 kWh and the 50 kW of power mean that the system can support 50 kW for approximately two and a half hours at a full discharge, which usually covers the short consumption peaks of a hall or a commercial space. The declared life exceeds 6000 cycles, with a minimum of 70% capacity remaining at the end, and thermal management keeps the cells below 35 °C at rated power, which directly protects this lifetime. The round-trip efficiency of up to 89% at system level shows how much of the energy put in is recovered at discharge, so it is the figure that counts in the economic calculation. The IP55 protection degree allows placement directly outdoors, without an additional hall or container, in an overall size of 1780 x 1056 x 2235 mm. For larger loads, up to 10 cabinets can be connected in parallel in off-grid mode.

All-in-one system for commercial and industrial applications, with integrated PCS, BMS and EMS: 50 kW rated power, 122.8 kWh capacity, LiFePO4 cells, battery voltage range 500-700 V. Conversion efficiency 97.6%, MPPT efficiency 99.9% on the photovoltaic side, overall round-trip efficiency of up to 89% at system level, more than 6000 cycles with at least 70% residual capacity at end of life, thermal management below 35 °C at rated power. Multi-level fire protection: detection of combustible gases, smoke and temperature, active extraction, alarm and aerosol suppression system integrated in the cabinet. IP55 enclosure for outdoor installation, overall size 1780 x 1056 x 2235 mm, up to 10 units in parallel in off-grid mode.

Who it suits

Suitable for a hall, a warehouse or a commercial space with costly consumption peaks or with its own photovoltaic production, which has room outside for a cabinet more than two metres high.

Terms explained

• Peak shaving: Cutting the consumption peaks: the battery covers the minutes in which the company would exceed the contracted power, so as not to pay penalties or a higher power all year round.
• Round-trip efficiency: How much of the energy put into the battery is recovered at discharge; the rest is lost along the way, in conversion and cooling.
• EMS: The energy management system, that is the program that decides at every moment whether the battery charges, discharges or stays idle, depending on tariffs and consumption.

Technical specifications

Recommended applications

• Peak shaving and reduction of the contracted power at industrial halls and commercial spaces
• Photovoltaic self-consumption at commercial scale, with discharge during peak tariff hours
• Backup and microgrids for farms, warehouses and production units
• Tariff arbitrage on markets with a large difference between the day and night price

Technical details

Specifications confirmed from the manufacturer's datasheet

GE-F120-2H2 is an all-in-one storage cabinet for commercial and industrial applications, which integrates in a single structure the inverter/PCS, the battery management system (BMS), the energy management system (EMS) and the battery pack. The rated power is 50 kW and the storage capacity 122.8 kWh, with LiFePO4 cells sized for intensive cycling regimes, typical for peak shaving and tariff arbitrage.

The battery pack works in the 500-700 V range. The declared conversion efficiency is 97.6%, with an MPPT efficiency of 99.9% on the photovoltaic side and an overall round-trip efficiency of up to 89% at system level. The service life exceeds 6000 cycles, with a residual capacity of at least 70% at the end of the period. Thermal management keeps the cell temperature below 35 °C at rated power, which directly protects the pack's service life.

Safety is handled on several levels: detection of combustible gases, smoke and temperature, active extraction, fire alarm and an aerosol suppression system integrated in the cabinet. The enclosure has an IP55 protection degree, so installation is done directly outdoors, without additional construction. The overall dimensions are 1780 x 1056 x 2235 mm (width x depth x height). For larger applications, the system can operate with up to 10 units in parallel in off-grid mode.