Commercial · Battery Storage
Battery storage that earns its keep.
Peak shaving, demand-charge reduction, backup power, and grid-services revenue. Tesla, Duracell, GivEnergy — sized to your half-hour data, not a brochure.
Why Commercial Battery Storage?
Battery storage offers multiple ways to save money and generate value for your business.
Peak Shaving
Reduce your maximum demand (kVA) charges by discharging batteries during peak periods. Capacity charges can represent 20-40% of commercial electricity bills.
Solar Self-Consumption
Store excess solar generation for use in the evening or overnight. Increase solar self-consumption from 30-50% to 70-90%, maximising your solar ROI.
Off-Peak Charging
Charge batteries overnight on cheap off-peak electricity (as low as 5-10p/kWh) and use during expensive daytime periods (25-40p/kWh).
Backup Power
Ensure critical operations continue during grid outages. Essential for data centres, healthcare, manufacturing, and any business where downtime is costly.
EV Load Management
Buffer EV charging demand with battery storage. Charge batteries slowly overnight, then rapidly charge vehicles without exceeding your supply capacity.
Grid Services Revenue
Participate in grid balancing services like Demand Flexibility Service (DFS) and frequency response. Generate additional revenue from your battery asset.
Commercial Battery Applications
Battery storage solutions for different business requirements.
Solar + Storage Integration
The most common application: store excess solar generation for evening use. Essential for businesses with mismatched solar generation and consumption profiles, such as offices that generate most on weekends but consume most on weekdays.
- Maximise solar self-consumption
- Reduce grid export and increase value
- Combined design optimisation
Standalone Peak Reduction
Even without solar, battery storage can dramatically reduce electricity costs by shaving peak demand and shifting load from expensive to cheap periods. Ideal for businesses with spiky demand profiles.
- Reduce capacity charges (£/kVA)
- Avoid DUoS red band costs
- No solar required
UPS & Backup Power
Ensure business continuity during grid outages. Modern lithium batteries can provide instant backup with seamless switchover, suitable for critical loads like IT infrastructure, medical equipment, and manufacturing processes.
- Millisecond response time
- Configurable backup duration
- Dual-use: savings + backup
EV Charging Buffer
Deploy batteries to buffer high-power EV charging without expensive supply upgrades. The battery charges slowly from the grid or solar, then provides rapid charging to vehicles.
- Avoid DNO upgrade costs
- Support rapid charging
- Integrate with solar
Commercial Battery System Sizes
From small office systems to large industrial installations.
Small Commercial
Ideal for small offices, retail units, and light industrial premises with modest demand profiles.
- Paired with 10-50kWp solar
- Peak shaving for smaller sites
- Typical investment: £20,000-£60,000
Medium Commercial
Suitable for warehouses, schools, medium manufacturing, and larger office buildings.
- Significant peak shaving potential
- Multi-hour backup capability
- Typical investment: £60,000-£250,000
Large Commercial
For distribution centres, large industrial facilities, data centres, and hospitals.
- Major demand charge reduction
- Grid services participation
- Typical investment: £250,000+
System sizing requires detailed analysis of your half-hourly consumption data, peak demand patterns, and objectives.
Our Battery Storage Approach
Rigorous analysis ensures we specify the optimal system for your requirements.
Energy Audit & Data Analysis
We analyse your half-hourly consumption data to understand demand patterns, peak periods, and potential savings. For solar integration, we model generation profiles against consumption.
System Design & Financial Modelling
Our engineers design an optimally-sized system with detailed financial modelling showing projected savings, revenue streams, and ROI under different scenarios.
Equipment Specification
We specify commercial-grade battery systems from leading manufacturers including Tesla Powerpack, BYD, and other proven technologies suitable for your application.
Installation & Integration
Our qualified engineers install the battery system, integrate with your existing electrical infrastructure and solar (if applicable), and configure the energy management system.
BMS Configuration & Optimisation
We configure the Battery Management System for your specific use case: peak shaving schedules, solar integration algorithms, backup power priorities, and grid service participation.
Monitoring & Support
Ongoing remote monitoring ensures optimal performance. We track savings, identify optimisation opportunities, and provide rapid response to any issues.
Frequently Asked Questions
Battery sizing depends on your primary objectives. For peak shaving, we analyse your maximum demand profile and size the battery to clip peaks to a target level. For solar storage, we match battery capacity to excess generation and evening consumption. For backup, we calculate critical load requirements and desired backup duration. Most commercial installations range from 50kWh to 500kWh, with larger industrial systems exceeding 1MWh.
Modern commercial lithium-ion batteries typically have warranties of 10-15 years and expected operational lifespans of 15-20+ years. Performance warranties guarantee 70-80% of original capacity after the warranty period. Actual lifespan depends on usage patterns, depth of discharge, and environmental conditions. We specify batteries with proven track records and robust warranties.
Batteries can significantly reduce but not always completely eliminate peak demand charges. The reduction depends on your demand profile and battery size. A properly sized system can typically reduce peak demand by 20-40%, delivering substantial savings on capacity charges (£/kVA/month) and DUoS red band costs. We model expected savings based on your actual consumption data.
Batteries can be added to most existing commercial solar installations. We assess your current inverter setup to determine the optimal integration approach: AC-coupled (batteries connect to the AC side via a separate battery inverter) or DC-coupled (batteries connect on the DC side if your inverter supports it). AC-coupling is most common for retrofit installations.
ROI varies significantly based on your tariff structure, consumption patterns, and use case. Peak shaving typically delivers 5-8 year payback for sites with high demand charges. Solar + storage combinations can achieve 6-10 year payback. Additional revenue from grid services can improve returns further. We provide detailed financial modelling for your specific situation.
Complete Energy Solutions
Battery storage works best as part of an integrated energy strategy.
Commercial Solar
Generate your own electricity to store in batteries. Solar + storage is a powerful combination for energy independence.
EV Charging
Use battery storage to buffer EV charging demand without expensive supply upgrades.
Battery Guide
Download our comprehensive guide to commercial battery storage technology and economics.
Our Accreditations
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