Large Commercial & Industrial Utility Scale Batteries
Immersa partners with developers, EPC firms and landowners to deliver 500kW to multi-megawatt battery systems. From grid applications to engineering and long-term optimisation, we provide the expertise needed to build large-scale storage projects with confidence.
Large-scale energy storage is vital as the UK transitions to a low-carbon future. We use advanced modelling and system simulation to design solutions that can harness high-generation periods, store energy when demand is low and supply it back when needed.
Our Utility-Scale Products
Select a product to explore its features and technical specifications.
Aster 500
500 kW
Product Advantages
Entry Point for Utility
Ideal starting point for utility-scale storage projects
Compact Footprint
High power density in a space-efficient design
Rapid Deployment
Pre-engineered for quick installation and commissioning
Grid Compliant
Meets G99/G100 requirements for UK grid connection
Scalable Architecture
Designed for future expansion up to 6 units in parallel
Liquid Cooled
Advanced thermal management for all climate conditions

Technical Specifications
What Utility Storage Enables
Stores energy when generation is high and demand is low
Supports grid stability, frequency response and balancing services
Creates long-term revenue through energy trading and grid contracts
Maximises the value of solar, wind or other renewable assets
How We Support Utility Partners
Your projects benefit from consistent, experienced technical support throughout the entire lifecycle.
- Grid connection applications and feasibility studies
- Financial & performance modelling
- System design, engineering and procurement
- Delivery, installation oversight and commissioning
- Monitoring, maintenance and asset management
Discuss utility-scale projects
Get expert guidance on large-scale battery storage solutions