Sopoco Completes 1.145 MWh Battery Storage System at AJW Group HQ
Sopoco delivered a 1.145 MWh commercial battery storage system at AJW Group’s global headquarters in Slinfold, West Sussex.
The installation combines five Sungrow PowerStack battery cabinets with Atmosphere EMS and integrates with the site’s existing rooftop solar PV and inverter infrastructure. Alternergy supported the project with system design, capacity modelling, product supply, logistics coordination and technical guidance.
Case Study
Sopoco Completes 1.145 MWh Battery Storage System at AJW Group HQ
Sopoco delivered a 1.145 MWh commercial battery storage system at AJW Group’s global headquarters in Slinfold, West Sussex.
Project facts
Installer
Client
Location
Project type
Storage capacity
Combined rated AC output
Battery system
Energy management
Design platform
Existing solar PV
Alternergy support
Completion
Mid 2026
Project facts
Installer
Client
Location
Storage capacity
Combined rated AC output
Battery system
Project Overview
AJW Group’s global headquarters in Slinfold, West Sussex, already had an approximately 800 kW rooftop solar PV system in operation.
Although the solar installation was generating effectively, part of the electricity produced on-site was being exported to the grid for a limited financial return. Outside solar-generation hours, the facility was also drawing significant electricity from the grid.
AJW Group therefore, required a storage solution that could retain more of its solar generation on site, improve self-consumption and help reduce its overall electricity costs.
Energy Data Analysis and System Sizing
To establish the appropriate battery capacity, Sopoco worked with Alternergy and Orkestra to analyse AJW Group’s half-hourly electricity-consumption data and existing solar-generation data.
The information supplied by the client was modelled through the Orkestra design platform to assess expected system performance, examine potential return on investment and produce an evidence-based recommendation for the required storage capacity.
Battery Storage System Design
To improve on-site energy resilience and maximise the use of AJW Group’s existing solar generation, Sopoco installed a 1.145 MWh commercial battery storage system.
The completed system consists of
Project Overview
AJW Group’s global headquarters in Slinfold, West Sussex, already had an approximately 800 kW rooftop solar PV system in operation.
Sopoco installed a 1.145 MWh battery system combining five Sungrow PowerStack cabinets with Atmosphere EMS, integrating with the existing solar PV and inverter infrastructure.
The system helps reduce grid consumption, improve onsite energy use and support the site's long-term sustainability goals.
Battery Storage System Design
Installation and Commissioning
This was Sopoco’s largest cabinet-style battery storage installation at the time of the project and its first project at this level of scale.
Despite the size and complexity of the system, the installation was completed successfully and without significant issues.
The project involved coordination between Sopoco, Alternergy, Sungrow, Atmosphere and Orkes
tra, with each partner providing specialist support across system design, product supply, installation, energy management and commissioning.
" Thanks to Russ and the Sopoco team, the whole install went perfectly. "
Installation and project support
This was Sopoco’s largest cabinet-style battery storage installation at the time of the project and its first project at this level of scale.
Despite the size and complexity of the system, the installation was completed successfully and without significant issues.
The project involved coordination between Sopoco, Alternergy, Sungrow, Atmosphere and Orkestra, with each partner providing specialist support across system design, product supply, installation, energy management and commissioning.
" Alternergy were on hand at every stage, from planning to commissioning, ensuring Sopoco had everything they needed to deliver with confidence." - Sopoco Project Team
01
Sungrow PowerStack Battery Storage
Five PowerStack cabinets provide a combined nominal capacity of 1.145 MWh and rated AC output of 550 kW.
02
Atmosphere Energy Management System
Atmosphere EMS provides the site-wide energy-management layer for the battery, solar PV and electrical infrastructure.
03
Integration with Existing Solar PV
The battery system allows more of the electricity generated during daylight hours to be retained and used on site.
Products and Technologies Used
Principal technologies supporting the battery installation and site-energy strategy.
Atmosphere EMS
Energy-management technology supporting coordinated operation across the site.
Orkestra Design Platform
Used to analyse site data and support evidence-based system-capacity selection.
Installation Images
Project Video
- A closer look at the battery system, installation and project partners.
Project Team
Planning
David Cracknell, Sopoco
Lead installer
Russ Brown, Sopoco
Installation team
Jess and Jimmy, Sopoco
Commissioning support
Sungrow
Orkestra design and modelling
Juan Ruiz and Mark Gardiner
Energy-management system setup
Atmosphere
Design and backend support
Laura Piscitelli, Alternergy
Alternergy’s Role
Alternergy worked alongside Sopoco from the early planning stage through to final commissioning.
System design and capacity modelling
Analysis of project requirements
Product supply and logistics coordination
Technical guidance throughout
Organising On-the-ground commissioning support
Alternergy handled a lot of the backend complexity of the project including multi-partner coordination.
" Alternergy were on hand at every stage, from planning to commissioning, ensuring Sopoco had everything they needed to deliver with confidence." - Sopoco Project Team
Project Significance What This Means for Sopoco
The completed installation demonstrates Sopoco’s ability to deliver complex commercial and industrial battery storage projects at significant scale.
It also gives the installer experience that can support future cabinet-based storage and commercial solar-and-storage projects.
Sungrow PowerStack Battery Cabinets
Five PowerStack ST225kWh cabinets providing 1.145MWh of storage capacity
Completed Installation
The completed battery storage system at AJW Group HQ
Project Team
The project team from Sopoco and our technology partners
Installation Team
Sopoco instalaltion team on site during the project
Installation Images
Sopoco
Sopoco plans and delivers solar PV and battery storage installations for commercial and industrial customers.
The AJW Group installation demonstrates the company’s capability to coordinate a complex commercial storage system involving several specialist technology partners.
Alternergy
We support residential and commercial projects with product selection, technical guidance and UK-wide delivery.
Sopoco
Sopoco plans and delivers solar PV and battery storage installations for commercial and industrial customers.