Commercial Battery Storage Solutions for UK Businesses
Reduce electricity costs and maximise the value of your renewable energy with commercial battery storage solutions. Compliant Retrofits designs and installs reliable battery storage systems for businesses across the UK.
Why Commercial Battery Storage
Why Should Your Business Install Commercial Battery Storage?
Commercial battery storage allows your business to store excess solar electricity or lower-cost off-peak energy for use when demand and electricity prices are higher. A professionally designed system can reduce grid reliance, improve energy resilience and help your business manage long-term operating costs.
Use More of Your Solar Energy
Store surplus solar electricity generated during the day instead of exporting it immediately to the grid. Your business can use the stored energy later, increasing solar self-consumption and reducing the amount of electricity purchased from your supplier.
Manage Peak Energy Demand
Commercial battery storage can discharge electricity during high-demand periods, helping your business reduce peak-time grid consumption. Depending on your tariff and energy profile, this may lower demand-related charges and overall electricity costs.
Support Business Continuity
Selected battery systems can provide backup power during grid outages when designed with suitable backup functionality. This can help keep essential equipment running, including servers, lighting, tills, security systems and refrigeration.
Reduce Dependence on the Grid
Batteries can store lower-cost electricity during off-peak periods and release it when energy prices are higher. This can benefit businesses with time-of-use tariffs, even where solar panels are not installed.
Access Grid Flexibility Opportunities
Eligible commercial battery systems may participate in demand-response or grid-balancing programmes through an approved energy provider or aggregator. Availability and potential revenue depend on the system, location, contract and current market requirements.
Improve Long-Term Energy Resilience
Combining commercial battery storage with solar panels, EV charging or heat pumps can create a more flexible energy system. This helps your business manage changing demand, future expansion and exposure to electricity-price volatility.
Who We Serve
What Commercial Battery Applications Do We Serve?
Compliant Retrofits provides tailored commercial battery storage solutions for offices, factories, retail sites, hospitality venues, EV fleets, and businesses without solar panels across the UK.
Solar & Battery Storage for Offices
Store daytime solar energy to power evening operations such as cleaning, security systems, lighting, and HVAC setback, or use it to charge EV fleets for the next working day.
Manufacturing & Industrial Sites
Shift stored solar energy to support night shifts, production lines, presses, conveyors, compressors, and other high-demand equipment while helping reduce peak electricity costs.
Retail & Hospitality Businesses
Use stored energy during evening trading hours for lighting, refrigeration, tills, kitchen equipment, and security systems. Battery storage can also provide backup power during outages.
EV Fleet Charging
Charge electric vehicles using stored solar energy or cheaper overnight electricity, helping reduce fleet running costs and improve long-term energy efficiency.
Hotels & Leisure Facilities
Store solar power to support evening and night-time loads, including lighting, HVAC systems, pool pumps, lifts, security, and other essential operations.
Standalone Battery Storage Without Solar
Battery storage can work without solar panels. Charge from the grid during cheaper off-peak periods, then use stored electricity during peak-rate hours — ideal for shaded roofs, heritage buildings, or sites where solar is not suitable.
System Sizing
How Are Commercial Battery Systems Sized for UK Businesses?
Commercial battery systems are sized based on your business’s energy consumption, peak demand, solar generation and backup power requirements. We assess your electricity usage and operational needs to recommend a battery storage solution that maximises savings, improves energy resilience and delivers the best return on investment.
| Business Size | Typical Premises | Typical Solar System (if present) | Battery Capacity | Installed Cost | Backup Duration | Payback Period |
|---|---|---|---|---|---|---|
| Small | Office, retail shop, small warehouse | 10–20 kWp | 10–20 kWh | £5,000–£10,000 | 1–2 hrs (essential loads) | 5–7 years |
| Medium | Warehouse, hotel, manufacturing facility | 30–50 kWp | 30–60 kWh | £15,000–£30,000 | 2–4 hours | 4–6 years |
| Large | Industrial site, distribution centre, multi-site | 100–500 kWp | 100–500 kWh | £50,000–£250,000 | 2–6 hours | 4–6 years |
Indicative figures only. Actual battery capacity, installed cost, backup duration, and payback period depend on site conditions, electricity usage patterns, tariff structure, solar system size, and installation specification. A professional site assessment is required. Solar system sizes shown are indicative for solar+battery combinations; standalone battery sizing is assessed separately.
How We Work
How Is Commercial Battery Storage Installed for UK Businesses?
Each installation is designed around your business’s energy profile, operational requirements, and site conditions — from initial consultation through to commissioning and ongoing monitoring.
We assess your energy usage profile, solar system (if present), peak demand charges, and battery requirements. We review half-hourly meter data to understand your load profile and provide a fixed-price quote.
We specify battery size, type (AC-coupled or DC-coupled), and control strategy — covering peak shaving, time-of-use optimisation, and backup power as required. We design the installation location, whether plant room, warehouse, or external enclosure.
- Install battery unit(s) on floor or wall brackets
- Install inverter/controller (if AC-coupled)
- Connect to solar system and/or grid
- Install backup consumer unit (if required)
- Install monitoring and control system
We commission the system, configure charge and discharge profiles based on your tariff and load profile, set backup reserve levels, and provide monitoring app access so you can track performance in real time.
Costs & Savings
How Much Does Commercial Battery Storage Cost in the UK?
Commercial battery storage costs vary depending on battery capacity, energy usage and operational requirements. The table below provides typical price ranges, estimated annual savings and expected payback periods for different commercial battery systems.
Good to know: Adding battery storage to an existing solar system typically increases self-consumption significantly, improving payback on both systems. Larger batteries generally deliver higher lifetime savings through economies of scale.
| Battery System | Typical Business | Installed Cost | Est. Annual Savings | Payback Period |
|---|---|---|---|---|
| 10–20 kWh | Small office, retail, small business | £5,000–£10,000 | £1,000–£3,000 | 5–7 years |
| 30–60 kWh Popular | Medium warehouse, hotel, manufacturing | £15,000–£30,000 | £4,000–£8,000 | 4–6 years |
| 100–500 kWh | Large industrial site, distribution centre | £50,000–£250,000 | £15,000–£60,000 | 4–6 years |
VAT is charged on materials (battery units, inverters, mounting equipment) at the standard 20% rate. Installation services attract no VAT. VAT-registered businesses can reclaim VAT paid on materials through their normal VAT return in accordance with standard UK VAT rules. We recommend confirming VAT treatment with your accountant or tax advisor. VAT rules verified July 2026.
Indicative figures only. All costs, savings, and payback periods are planning estimates, not quotations. Actual figures depend on battery capacity, site conditions, electricity usage, energy prices, tariff structure, and installation complexity. Annual savings figures assume combination with solar PV or time-of-use tariff optimisation.
Our Approach
Why Choose Compliant Retrofits for Commercial Battery Storage Across the UK?
Compliant Retrofits delivers tailored commercial battery storage solutions designed to help UK businesses reduce electricity costs, improve energy resilience and maximise the value of their energy investment.
Tailored System Design
We assess your energy consumption, operating hours and electricity tariff to design a battery storage system that precisely meets your business objectives — not a one-size-fits-all solution.
Peak Shaving & Time-of-Use Optimisation
We optimise battery charging and discharging to take advantage of off-peak electricity rates, store excess solar energy, and reduce costly peak demand charges on your energy bill.
Backup Power Solutions
Where required, we design and install backup power functionality to keep critical equipment, lighting, security systems and essential business operations running during grid outages.
Commercial-Grade Equipment
We use high-quality commercial battery systems from trusted manufacturers, delivering reliable, scalable solutions for offices, retail premises, warehouses, factories and industrial facilities.
Solar Integration & EV Compatibility
Our systems integrate with existing or new solar PV installations and EV charging infrastructure, creating a fully optimised on-site energy ecosystem for your business.
Free Consultation & Feasibility Study
Every project begins with a free consultation and feasibility study, ensuring you receive the most suitable battery storage solution with clear savings projections and long-term performance in mind — at no obligation.
FAQs
Frequently Asked Questions About Commercial Battery Storage in the UK
Ready to Install Commercial Battery Storage for Your UK Business?
Book a free consultation — we’ll assess your energy usage, review your electricity tariff and provide a fixed-price quote. No obligation, 24-hour response.
69 Hamilton Road, Manchester M13 0PD