Battery Storage
Using our trusted service we will help you store the energy you generate and use it when you need it most, with state-of-the-art commercial battery storage systems so that you can reduce your reliance on the grid and protect your business from peak-time energy costs.
Perfect for businesses with high daytime energy demand or those looking to maximise the value of their solar installation.
What’s included?
Already have solar? Battery storage could significantly increase your return on investment.
Bespoke battery system sized -around your energy consumption and usage patterns
Seamless integration with existing or new solar PV systems
Full electrical installation by our accredited engineers
Smart energy management system setup for automated charge and discharge cycles
Battery storage funding
Power Purchase Agreement (PPA)
No upfront capital required
A PPA can be structured to include battery storage alongside your solar installation, meaning you benefit from reduced energy costs and greater grid independence from day one — with no upfront investment required.
Under a battery storage PPA, a third-party funder owns and maintains the system on your premises. You simply pay for the electricity the system delivers, at a rate set below the standard grid price. The result is immediate savings on your energy bills without tying up capital or taking on system ownership risk.
This structure is particularly well suited to businesses that want the financial benefits of battery storage — reduced peak demand charges, protection against grid outages, maximised solar self-consumption — without the upfront cost of purchasing the equipment outright.
PPAs are typically structured over a 10–25 year term. At the end of the agreement, options usually include renewing the contract, purchasing the system outright, or having it removed at no cost.
Capital Expenditure (CAPEX)
Own your system outright from day one
Purchasing a battery storage system outright is the most straightforward route, and the one that delivers the greatest long-term return on your investment.
With CAPEX, the system is yours from the moment it's commissioned. Every unit of electricity your battery stores and discharges is effectively free — reducing your reliance on the grid during peak tariff periods and maximising the value of any solar generation on site. Most commercial battery storage systems pay back the initial investment within 3–7 years, after which the system continues delivering savings for a decade or more.
CAPEX also comes with a significant tax advantage. Commercial battery storage qualifies for capital allowances under the UK government's Full Expensing scheme, meaning the full cost of the system can be deducted from your taxable profits in the year of purchase — substantially reducing the effective cost of your investment.
For businesses that already have solar installed, adding battery storage via CAPEX is one of the most reliable ways to increase the return on that existing investment. Rather than exporting surplus generation back to the grid at a low rate, you store it and use it yourself at full value.
Why battery storage
Up to 40% reduction in peak demand charges
Protect against grid outages
Pairs with any solar installation
10+ year system lifespan
"Electrasure have been one of Innasol's most important delivery partners in recent years. In the last 24 months the team has delivered vital projects on time, on budget and to best in class standards."
Paul Shearin, InnasolFAQs
What does a commercial battery storage system actually do?
1
A commercial battery storage system stores electricity generated by your solar panels — or drawn from the grid at low-tariff periods — and makes it available when you need it most. This means your business can use its own stored energy during peak tariff periods, reducing reliance on grid electricity at its most expensive. It also provides a degree of protection against power outages and helps maximise the return on your solar investment.
Do I need solar panels to benefit from battery storage?
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No — battery storage can work as a standalone system. Without solar, a battery can be charged from the grid during off-peak low-tariff periods and discharged during peak periods, reducing your overall energy costs. However, the greatest financial returns come when battery storage is paired with a solar PV system, as the battery stores surplus solar generation that would otherwise be exported to the grid at a low rate.
How much can battery storage reduce my energy bills?
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The saving depends on your energy usage profile, the size of the battery system, and your current tariff structure. Businesses with significant peak demand charges typically see reductions of 20–40% on those specific charges. When combined with solar, the overall system can reduce total electricity costs by 50–75%. We provide a detailed financial projection as part of your free consultation.
How long does a commercial battery storage system last?
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Most commercial battery storage systems are designed to last 10–15 years with minimal degradation in performance. The batteries we install come with manufacturer warranties covering both performance and longevity. We also offer ongoing O&M contracts to ensure your system continues operating at peak efficiency throughout its lifespan.
Can battery storage be added to an existing solar installation?
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Yes — battery storage can be retrofitted to most existing solar PV systems, including those installed by other contractors. We carry out a full assessment of your existing system before recommending a battery solution to ensure seamless integration and optimal performance.
How long does it take to install a commercial battery storage system?
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Most commercial battery storage installations are completed within 1–3 days depending on system size and the complexity of your electrical infrastructure. If the battery is being installed alongside a new solar system, both are typically commissioned together within the same project timeline.
What is the difference between a PPA and buying a battery storage system outright?
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Under a Power Purchase Agreement (PPA), a third-party funder owns and maintains the battery system on your premises and you pay only for the electricity it delivers — with no upfront capital required. Buying outright (CAPEX) means you own the system from day one and keep all the financial benefits, with payback typically achieved within 3–7 years. The right option depends on your capital position and long-term energy strategy — we walk you through both during your free consultation.
Ready to get started?
Book a free, no-obligation consultation with our team. We'll assess your business, explain your options clearly, and give you an honest view of what solar or energy optimisation could save you.
