Commercial Battery Storage
Government-Approved & Certified Installers
Fully Funded Solutions Available
5 year installation warranty
Battery storage installers
Thanks to the development of commercial battery storage technologies, businesses can now manage their energy consumption while also making effective long-term plans.
Onsite battery storage installation gives the ability to store any excess energy produced, so businesses can function independently of the grid using backup power when demand is high.
Bright Spark provides bespoke battery storage solutions for your company using the latest, well-tested technology.
We offer exceptional aftercare, so your business is well-equipped to use and manage its new systems.
Learn more about our services or set up a free consultation with a no-obligation quote.
Benefits of energy storage
Reliable backup
Keep up with growing government commitment to reducing carbon emissions and green energy.
Cost-effective
Release your self-generated energy when peak electricity times kick in and sell your excess back to the grid.
Sustainable energy
Power cut? No problem. Remain operational in the event of a power outage on the main grid.
Scalability
Grow your solar set-up the way you need it, when you need it.
Why Choose Bright Spark Energy for Commercial Battery Storage?
At Bright Spark Energy, we combine deep technical expertise with a genuine passion for renewable energy. With over a decade of experience in designing and installing energy systems, we’ve built a reputation for delivering intelligent, high-quality solutions that help organisations cut costs, reduce emissions, and future-proof their operations.
Proven Experience, Trusted Partner
Since 2011, we’ve helped hundreds of businesses, schools, public sector organisations and community buildings across the South of England transition to clean energy. From multi-site solar and battery installations to bespoke energy storage systems, we understand the needs of commercial spaces — and how to deliver results efficiently and reliably.
End-to-End Project Management
We don’t just install equipment — we manage your project from concept to commissioning. Our team handles everything, including site surveys, DNO applications, structural assessments, and full system integration. You’ll have a dedicated point of contact and a solution tailored to your energy usage, site layout, and long-term goals.
Industry leading units
Our battery storage systems are designed to optimise your energy usage, reduce peak-time grid demand, and provide backup power if needed. Whether you’re aiming to lower operating costs, meet sustainability targets, or build in energy resilience, we’ll help you find the right technology mix — now and for the future.
We only install products we would use in our own offices. That’s why we only offer installations for quality products from trusted partners like Tesla, and Sigenergy.
Accredited, Insured, and Always Accountable
All of our commercial installations are carried out by our own team of experienced, MCS-accredited engineers. We’re fully insured and committed to the highest standards of safety, compliance, and quality. Every project is backed by robust product warranties and full documentation, giving you peace of mind that your investment is in safe hands.
- NICEIC
- MCS
- Trading standards
- RECC
- CHAS
Case Studies
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Case Study: Solar PV System Installation at Hazlemere Library
Hazlemere Library has embraced sustainability with a new solar PV…
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Case Study: Solar Power Project at Chesham Library
Working with Buckinghamshire Council, Bright Spark Energy successfully implemented a…
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Aylesbury Family Centre Solar Installation
Solar installation on behalf of Bucks council at a family…
Commercial Battery Storage – Frequently Asked Questions
Battery storage is the perfect way to make the most of your solar energy—cutting your bills, reducing your reliance on the grid, and giving you backup power when you need it most.
How much energy can a commercial battery store?
Commercial battery systems are modular and scalable — we’ll design a solution based on your usage patterns, site needs, and goals. Systems can range from 5 kWh for small businesses to hundreds of kWh or more for large sites or multi-location operations.
What types of businesses are a good fit for battery storage?
Any business with high energy usage, variable operating hours, or a desire to reduce grid reliance can benefit. We work with schools, warehouses, manufacturers, offices, hospitality venues, and public buildings — tailoring each system to the specific demands of the site.
How long do commercial batteries last?
Most commercial-grade batteries come with 10+ year warranties and are designed to last well beyond that with proper maintenance. We only supply trusted, high-performance brands with strong manufacturer support.
Will the battery work during a power cut?
Yes—if you opt for a system with backup functionality. Your battery will automatically kick in to power essential circuits like lighting, refrigeration and internet, helping you stay safe and connected even during outages.
What’s involved in the installation process?
We manage the entire project in-house — including site surveys, DNO applications, structural checks, equipment installation, and system commissioning. You’ll have a dedicated project manager and minimal disruption to your day-to-day operations.
Will I need planning permission?
In most cases, battery systems don’t require planning permission. However, we assess each site individually and advise you if any permissions are needed — particularly for listed buildings or conservation areas.
Can I add battery storage to my existing solar system?
Yes. We regularly retrofit battery storage to existing commercial solar PV systems. We’ll check compatibility and advise on any changes needed for a smooth integration.
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