Comparison at a glance

Select the EMS for operational visibility

The EMS fits a team whose purchase is centered on observing and analyzing an energy storage installation. It displays voltage, temperature, and internal resistance for each cell, then presents station-level operation, income, and safety data in the same operating view.

Its fault workflow is useful when an operator needs to trace an abnormal event. The system can locate a failure point, automatically record and store breakpoint data, and support queries of the station’s operating process. It also records charge and discharge data and analyzes battery attenuation and degradation.

For a project team defining operating rules, the EMS specifies an operation strategy according to the project situation. Send the supplier the storage assets to be connected, the low-voltage distribution arrangement, the measurements required by operators, and the fault records needed for follow-up.

Select the centralized system for a containerized battery installation

The centralized energy storage system fits a buyer procuring the battery installation and its supporting equipment together. The design integrates the power system, BMS, temperature control, environmental control, fire protection, lighting, and grounding system. Its main formats are 20HC, 30HC, and 40HC.

The three formats have full energy capacities of 3.65 MWh, 6.02 MWh, and 7.53 MWh. Available energy is 2.67 to 3.65 MWh for 20HC, 4.52 to 6.02 MWh for 30HC, and 6.67 to 7.53 MWh for 40HC. The system voltage range is 1,000 to 1,500 V, with a charge/discharge ratio of 0.5CP.

The battery uses LFP 3.2 V, 280 Ah cells. Its cycle-life figure is 8,000 cycles at 90% depth of discharge and at least 70% end of life, while DC-side cyclic efficiency is at least 94%. Active equalization, pack-level detection, variable-frequency air cooling, and gas, smoke, and temperature detection are part of the system design.

Picture a container project being checked against its site before shipment. The listed sizes are 6,058 × 2,438 × 2,896 mm, 9,125 × 2,438 × 2,896 mm, and 12,192 × 2,438 × 2,896 mm for 20HC, 30HC, and 40HC. The operating range is -40 to 55°C, humidity is 0 to 95% relative humidity without condensation, and altitude is up to 5,000 m with derating above 3,000 m. Match the selected format to the available footprint, electrical design, temperature, humidity, altitude, and transport plan.

How the two choices can fit one project

The EMS and centralized system are separate purchasing scopes. The centralized system supplies the battery and integrated electrical, thermal, environmental, and safety equipment. The EMS supplies the monitoring, fault tracing, data analysis, and project-specific operation-strategy layer around the storage installation.

A complete project specification can define both. For the centralized system, provide the target container format, energy range, site conditions, and communication architecture. For the EMS, provide the storage equipment and low-voltage distribution connections, the cell and station data required by operators, and the operating strategy that should be specified for the project.

See the Energy Management System EMS product page for the monitoring and analysis layer. For a quotation, send the selected container format, required energy range, site temperature and altitude, connection design, and EMS data requirements.