Description
Advanced Battery Storage for Demanding Energy Applications
The Rayleigh EnergySet 261 is a high-performance commercial Battery Energy Storage System (BESS), combining 261 kWh of battery capacity with a powerful 125 kW three-phase inverter.
Developed for businesses, infrastructure operators and organisations requiring substantial energy storage, the EnergySet 261 provides a flexible solution for backup power, renewable energy integration and intelligent electricity management.
Its compact, all-in-one cabinet design offers an alternative to traditional containerised battery storage systems, making it suitable for commercial and industrial sites where space, scalability and operational efficiency are important.
High-Performance Backup Power and UPS Applications
For organisations operating critical electrical infrastructure, power interruptions can create significant operational and financial risks.
The EnergySet 261 can be configured with an integrated Static Transfer Switch (STS) module, providing rapid switching between grid-connected and off-grid operation.
The STS-equipped version supports switching times of less than 20 milliseconds, making it suitable for consideration in engineered backup power applications where rapid electrical supply restoration is essential.
Typical applications include industrial control systems, critical building services, infrastructure installations, communications equipment and commercial facilities.
For sensitive equipment requiring uninterrupted supply, ESS Power Store can assist with assessing switching performance, load characteristics and additional UPS requirements.
Intelligent Energy Management and Renewable Integration
The EnergySet 261 provides more than emergency backup electricity.
By integrating battery storage with solar PV, grid electricity and intelligent energy management, organisations can optimise how electricity is generated, stored and consumed.
Potential benefits include:
- Peak shaving: Reduce electricity demand during periods of high consumption.
- Solar energy storage: Capture excess renewable generation for later use.
- Tariff optimisation: Charge during lower-cost electricity periods and discharge when electricity prices increase.
- Energy resilience: Maintain stored energy reserves for essential electrical systems.
- Microgrid operation: Support integrated energy systems combining renewable generation, battery storage and other power sources.
- Decarbonisation: Reduce reliance on diesel generation and increase renewable electricity utilisation.
Liquid-Cooled Battery Technology
The EnergySet 261 features advanced liquid cooling, designed to manage battery operating temperatures and support reliable performance across demanding commercial applications.
Effective thermal management is particularly important for larger battery systems operating under regular charging and discharging cycles.
The system also incorporates battery protection, fire suppression provisions and intelligent monitoring capabilities to support safe, managed operation.
Scalable Commercial Energy Storage
With 261 kWh of battery capacity and 125 kW of inverter output, the EnergySet 261 provides substantial storage and power capability within a relatively compact installation footprint.
Its scalable architecture enables organisations to consider additional capacity as energy demands increase.
Cloud-based monitoring and integrated energy management provide visibility of system performance, helping operators manage energy usage and identify opportunities for optimisation.
Typical Applications
- Industrial facilities: Energy management, peak shaving and electrical resilience.
- Critical infrastructure: Backup power for control systems and essential operations.
- Commercial buildings: Reducing peak electricity demand and improving supply resilience.
- Solar PV installations: Storing renewable electricity and increasing self-consumption.
- Utilities and infrastructure projects: Supporting localised energy systems and grid resilience.
- Microgrids: Combining battery storage with solar generation and alternative energy sources.
- EV charging infrastructure: Supporting managed charging demand and energy storage integration.
ESS Power Store – Specialist BESS and UPS Support
ESS Power Store works with commercial and industrial customers to develop energy storage solutions tailored to their operational requirements.
Whether the objective is improving power resilience, replacing diesel-based backup arrangements, maximising solar PV generation or managing peak electricity demand, we can support system selection, load analysis, integration planning and monitoring.
Contact ESS Power Store to discuss how the Rayleigh EnergySet 261 can support your commercial battery storage, UPS or renewable energy project.