500 kW / 1,020 kWh Battery Energy Storage System for Business. Backup Power
An industrial energy storage solution for backup power and energy management at large facilities. The 500 kW BESS with a nominal capacity of 1,020 kWh can supply critical loads of up to 500 kW during grid outages and keep essential operations running. The system is built around four Sungrow ST255CS-2H units with liquid cooling and centralized control via EMS.
- 500 kW power / 1,020 kWh capacity
- 918 kWh usable capacity
- 10 ms backup switching time
500 kW / 1,020 kWh BESS — Industrial Solution for Large Businesses
The 500 kW battery energy storage system with a nominal capacity of 1,020 kWh is designed to provide backup power for facilities with significant critical loads. With a maximum depth of discharge of 90%, the system provides 918 kWh of usable battery capacity.
The system consists of four Sungrow ST255CS-2H units, each rated at 125 kW with a capacity of 255 kWh. The BESS units feature liquid cooling, while centralized control is handled by Sungrow EMS. A Sungrow COM100D-EU Logger is used for communication and monitoring.
Specifications
500 kW
1,020 kWh
918 kWh
Liquid Cooling
LiFePO₄
3-Phase
5 years for inverter and battery system
Estimated BESS Cost
BESS 500 kW / 1,020 kWh
Industrial Backup Power Solution for Large Businesses
*The final price is confirmed after a site visit and completion of the engineering design.
How BESS Helps Reduce Costs
The economic impact of an industrial BESS depends on the facility’s load profile, operating mode and system use case. The BESS can support critical processes during grid outages and use stored energy during other load periods. The exact financial benefit is calculated individually for each facility.
During a grid outage, the BESS keeps critical loads running and helps reduce losses caused by unplanned downtime.
The economic benefit depends on the duration of outages and the cost of downtime for critical processes.
The BESS stores energy and allows it to be used during other load periods, reducing the facility’s dependence on grid power.
The actual economic benefit depends on the load profile, charging source and system operating mode.
Economic Impact of the BESS
Calculated individually
operating mode and load profile
For an industrial BESS, the economic benefit may come from backing up critical processes, reducing losses caused by downtime, and shifting energy consumption across different periods. The exact payback period is determined after analysing the facility’s load profile, operating conditions and system use case.
500 kW / 1,020 kWh BESS — for Large Businesses
This industrial battery energy storage system is designed for large facilities with high critical loads, where power outages can stop production, disrupt technological processes or lead to significant financial losses.
Suitable for:
The BESS can support automated warehouse systems, sorting and conveyor lines, server infrastructure, lighting and other critical equipment.
It can provide backup power for elevators, grain storage facilities, drying systems, ventilation, pumps and other equipment required for continuous operation.
Suitable for backing up critical production lines, automation systems, drives, pumps and other process equipment where an outage could disrupt production.
Suitable for backing up refrigeration equipment, ventilation systems, temperature control, automation and process equipment where a power outage could result in product spoilage.
The BESS can back up refrigeration systems, ventilation and air conditioning, checkout infrastructure, lighting, servers, automation systems, lifts and other critical equipment.
Suitable for backing up servers, network and telecommunications equipment, cooling systems and supporting infrastructure where uninterrupted operation is critical.
What Is Included in the BESS Package
The 500 kW / 1,020 kWh industrial battery energy storage system consists of four integrated Sungrow ST255CS-2H units, a centralized EMS, communication and metering equipment, as well as the required protection and switching equipment. The configuration is designed for centralized management of high power flows and backup of critical facility loads.
Warranties
5 years (10-year manufacturer performance warranty)
5 years
2 years
From Site Audit to BESS Start-up
Alteco supports the project from site analysis and system configuration through installation, setup and commissioning. A single contractor is responsible for equipment compatibility and reliable operation of the entire system.
What we do:
• Analyse the facility’s load profile
• Identify critical loads and the required backup power
• Review the existing power supply system
• Assess integration with solar PV and generators
• Develop a preliminary BESS configuration
What you get:
A preliminary technical assessment and an initial BESS configuration for your facility.
What we do:
• Define the required system power and capacity
• Configure the solution using 4 Sungrow ST255CS-2H systems
• Define the EMS, metering, communication and protection equipment
• Plan integration with the grid, solar PV and generators
• Prepare a technical and commercial proposal
What you get:
An agreed BESS configuration with the equipment list, scope of work and cost.
What we do:
• Develop BESS electrical diagrams
• Finalize the list of additional materials
• Design the BESS connection to the facility’s electrical network
• Define protection, grounding and equipment locations
• Prepare the implementation plan
What you get:
An engineered solution and a complete BESS implementation plan.
What we do:
• Deliver the equipment to the site
• Install 4 Sungrow ST255CS-2H systems
• Install the Sungrow EMS, Logger and metering system
• Complete power connections, protection and grounding
• Integrate the BESS into the facility’s electrical network
What you get:
An installed and connected system, ready for commissioning.
What we do:
• Check the installation of the battery and power sections
• Configure the BMS and EMS
• Test charging and discharging modes
• Test backup power for critical loads
• Synchronize the BESS with the grid and solar PV system
• Configure integration with generators
• Check monitoring and data transmission
What you get:
A fully configured and tested industrial BESS, ready for normal operation.
