215 KWh Storage System Deye MS-GS215-2H3

Think of this product as a large tank of electrical energy, delivered ready-assembled in a metal cabinet. Inside there are the batteries, the electronics that transform the battery current into ordinary current, usable in the hall, and its own cooling system, a kind of dedicated air conditioning that keeps the batteries at the right temperature. Its role is to gather energy when it is cheap or when the panels produce more than is consumed, and to give it back when consumption rises or when the grid goes down. It is not built from separate parts: it is brought by crane, placed on the platform and connected to the main board.

The 215 kWh stored mean, indicatively, a little over two hours of operation at the maximum power of 100 kW, or much more if discharging is done slowly, only to cut consumption peaks. The system-level efficiency is about 88%, that is, of the energy fed in approximately 88 per cent is recovered, the rest being conversion and cooling losses. The cabinet measures 1865 x 1000 x 2500 mm and weighs around 2732 kg, so it needs a concrete platform and lifting equipment, but it can stand outdoors, without a building around it. The batteries are warranted for over 6,000 cycles at 90% depth of discharge, that is, at one full cycle per day, a reserve that comfortably exceeds the 10 years of warranty. Maintenance is limited to the periodic checking of the air conditioning system and the filters, the rest being managed automatically by its own electronics.

The battery pack consists of 15 high-voltage modules of 14.3 kWh each, with LiFePO4 cells, managed by an integrated BMS and conditioned through liquid cooling. The cabinet has an IP54 protection rating and a C5 corrosion class, with operation between -20 and +50 °C and a maximum altitude of 3000 m, which allows placement in industrial environments with an aggressive atmosphere. The system works both on-grid and off-grid, and scaling is done by paralleling up to 20 units, for installations of the order of megawatts. System-level round-trip efficiency about 88%, service life over 6,000 cycles at 90% DoD, warranty 10 years or a minimum of 6,000 cycles.

Who it suits

Suitable for an industrial hall, a warehouse or a shopping centre with a contracted power of over 100 kW, which wants to reduce consumption peaks or to have a reserve when the grid fails, and which has outdoor space for a concrete platform.

Terms explained

• kWh and kW: kWh is the amount of energy stored, like the litres in a tank, and kW is the speed at which you can take it out, like the flow rate of the tap.
• Depth of discharge (DoD): How much the battery is emptied before being recharged; 90% DoD means that nine tenths of the capacity are used, keeping a reserve for the health of the cells.
• IP54 and class C5: IP54 shows that the cabinet resists dust and rain splashes, and C5 that the paint and the metal withstand salty or polluted air, such as near the sea or near a factory.

Technical specifications

Recommended applications

• Industrial and commercial microgrids with on-grid and off-grid operation
• Peak shaving and reduction of contracted power at consumers over 100 kW
• Backup for data centres, telecommunications stations and production units
• Large commercial photovoltaic installations, with storage and discharge during peak hours

Warranty

10 years or a minimum of 6000 cycles

Technical details

Specifications confirmed from the manufacturer's datasheet

MS-GS215-2H3 is an integrated storage system for commercial and industrial applications, delivered in the form of a complete cabinet that includes the 100 kW conversion section, the 215 kWh battery pack, the battery management and the air conditioning system. The battery pack consists of 15 high-voltage modules of 14.3 kWh each, with LiFePO4 cells chosen for thermal stability and long service life.

The declared service life is over 6000 cycles at 90% depth of discharge, and the system-level round-trip efficiency is approximately 88%. The cell temperature is controlled by an integrated air conditioning system with liquid cooling, which keeps the pack in the optimal operating window including under conditions of high temperature or intensive cycling; this translates directly into capacity retention over the duration of the warranty contract.

The cabinet has an IP54 protection rating and a C5 corrosion class, so it can be placed outdoors including in industrial environments or near areas with an aggressive atmosphere. The overall size is 1865 x 1000 x 2500 mm, at a weight of approximately 2732 kg, and the operating range is -20...+50 °C, at altitudes of up to 3000 m. The system works both on-grid and off-grid and can be scaled by connecting up to 20 units in parallel, which allows the construction of installations of the order of megawatts.