🔋 High-Capacity Batteries
Lithium-ion battery modules from 5kWh to 20kWh+, scalable and designed for thousands of charge cycles with minimal degradation.
What is Battery Energy Storage?
Battery energy storage systems (BESS) store electricity for use when it's most valuable – whether that's during peak tariff periods, when solar isn't generating, or as backup during grid outages. Combined with smart energy management software, these systems optimise your energy flows automatically.
Modern lithium-ion battery systems offer high efficiency, compact footprints, and intelligent controls that respond to real-time grid signals, solar output and household demand to maximise savings and resilience.
Example Installations
Residential battery systems
Smart energy management dashboard
Integrated solar + storage system
Key Features
🧠 AI-Powered Controls
Smart energy management systems that learn your usage patterns, respond to grid signals, and optimise charge/discharge cycles automatically.
⏰ Load Shifting
Automatically charge from the grid during cheap off-peak periods and discharge during expensive peak times to cut electricity costs.
📉 Peak Shaving
Reduce demand charges by supplementing grid power with battery discharge during high-demand periods, lowering your peak kW billing.
☀️ Solar Integration
Store excess solar generation during the day for use in the evening, maximising self-consumption and reducing grid dependency.
🛡️ Backup Power
Provide islanded backup during grid outages, keeping critical loads running and protecting against business interruption.
Common Applications
Reduce Peak Rate Bills
For homes on time-of-use tariffs, batteries charge during cheap off-peak periods and discharge during expensive peak times to cut electricity costs.
Maximise Solar Savings
Capture surplus solar energy during the day and use it in the evening when your family needs it most, reducing reliance on expensive grid imports.
Power Outage Protection
Keep essential appliances running during power cuts with automatic backup power from your battery reserves.
Pros & Cons
✅ Advantages
- Bill reduction: Save 20–40% on electricity costs through load shifting and peak shaving.
- Solar optimisation: Store excess solar and increase self-consumption from 30% to 70%+.
- Grid independence: Reduce reliance on the grid and protect against price volatility.
- Resilience: Keep essential appliances running during power cuts.
- EV charging: Store cheap overnight electricity to charge your electric vehicle.
- Carbon savings: Reduce grid imports during high-carbon periods by using stored renewable energy.
- Scalable: Start with a smaller system and expand capacity as needs grow.
⚠️ Considerations
- Higher upfront cost: More expensive than solar alone, though savings can justify the investment.
- Limited cycles: Batteries have a finite lifespan (typically 10–15 years or 5,000–10,000 cycles).
- Space requirements: Battery cabinets require dedicated indoor or outdoor space with ventilation.
- Complexity: Requires professional design and integration with existing electrical systems.
- ROI variability: Savings depend on tariff structure, usage patterns and solar integration.
- Regulations: May require DNO approval for grid connection and export.
Typical System Specifications
| Battery Capacity | 5kWh – 20kWh (modular, scalable) |
| Power Output | 3kW – 10kW continuous discharge |
| Round-Trip Efficiency | 90–95% (charge to discharge) |
| Cycle Life | 5,000–10,000 cycles (10–15 years typical) |
| Chemistry | Lithium Iron Phosphate (LFP) or NMC |
| Warranty | 10 years product, 70–80% capacity retention |
| Monitoring | Cloud platform with AI optimisation and alerts |
Interested in battery storage?
Contact us for a storage assessment. We'll analyse your tariff, energy usage and solar generation (if applicable) to model savings and recommend the optimal battery size for your home.
Get your storage assessment →