100 kWh Energy Storage System Added to Existing Solar Array
Project Overview
Live Solar Ltd recently completed the installation of a large-scale commercial battery storage system added retrospectively to an existing solar PV installation.
The client already had a solar array installed and generating renewable electricity, but like many businesses they were exporting large amounts of energy back to the grid during the day while still needing to import electricity during the evening and peak demand periods.
To solve this, we designed and installed a SolaX Aelio commercial energy storage system, allowing the site to capture and store excess solar generation for use later in the day.
The system significantly increases the value of the energy already being produced by the solar array while improving the site’s ability to manage its energy demand.
Project Snapshot
Client
Commercial Offices
Location
West Midlands, United Kingdom
System Type
Commercial Battery Energy Storage System (BESS)
Battery Capacity
100 kWh
Inverter
SolaX Aelio 60 kW Hybrid Inverter
Installation Type
External ground-mounted battery cabinet
Installer
Live Solar Ltd
System Performance Benefits
100 kWh
Battery Storage Capacity
60 kW
Hybrid Inverter Output
Solar Energy Stored
Excess daytime solar generation stored for later use
Grid Independence
Reduced reliance on imported electricity
Energy Optimisation
Improved self-consumption of existing solar production
Retrofitting Battery Storage to Existing Solar
Many commercial solar systems were originally installed without battery storage, particularly when export tariffs were more favourable.
However, as energy prices have increased and export payments have fallen, storing energy on-site has become far more valuable.
By installing a commercial battery storage system, the client can now:
• Store excess solar energy generated during the day
• Use stored energy during evening operations
• Reduce peak grid imports
• Increase the return on their existing solar investment
This retrofit approach is becoming increasingly popular with commercial solar owners.
The SolaX Aelio Commercial Energy Storage System
For this project we installed a SolaX Aelio hybrid inverter paired with a 100 kWh commercial battery cabinet.
The system is designed specifically for larger commercial installations where energy demand and solar generation are significantly higher than domestic systems.
Key features of the system include:
• High-capacity lithium battery storage
• 60 kW hybrid inverter capability
• Integrated safety and monitoring systems
• Scalable commercial energy storage architecture
The cabinet-based design allows the entire system to be housed externally while maintaining excellent thermal management and protection.
Installation Process
Because the battery system was being added to an existing solar installation, careful integration with the existing electrical infrastructure was required.
The installation included:
• Positioning and installing the external battery cabinet
• Integrating the hybrid inverter with the existing solar system
• Connecting the battery system to the site’s electrical distribution
• Commissioning and testing the full system operation
Our team ensured the system was installed safely and efficiently while maintaining compliance with commercial electrical and renewable energy standards.
External Cabinet Design
The battery system is housed in a purpose-built external cabinet, allowing the installation to remain outside the main building while still providing secure housing and proper ventilation for the equipment.
This type of installation is ideal for commercial sites where internal plant space may be limited.
Benefits include:
• Minimal disruption to building interiors
• Easy service access for maintenance
• Safe separation of energy storage equipment
• Professional and tidy installation appearance
Future Energy Flexibility
Battery storage provides the site with far greater flexibility in how it uses its electricity.
Instead of exporting surplus solar generation at low rates, the business can now store that energy and use it when electricity prices are highest.
This improves both:
• financial return on the solar system
• energy resilience for the site
As commercial electricity prices continue to fluctuate, battery storage will play an increasingly important role in how businesses manage energy.
Installed by Live Solar Ltd
At Live Solar Ltd, we specialise in both new solar installations and the upgrade of existing systems with modern battery storage technology.
Our team works with commercial clients to assess their existing solar systems and identify opportunities to improve performance and increase energy independence.
Whether installing a new solar system or upgrading an existing one, our focus remains the same:
• high-quality installation
• intelligent system design
• long-term performance
Thinking About Adding Battery Storage?
If your business already has solar panels installed, adding battery storage can dramatically improve how that energy is used.
Many commercial solar systems installed over the past decade can benefit from energy storage upgrades.
At Live Solar Ltd, we help businesses unlock more value from their solar systems by integrating advanced battery storage solutions tailored to their energy profile.
If you’re interested in adding battery storage to an existing solar system, contact our team or start an instant quote today.