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Battery Energy Storage

Maximise the Value of Your Solar PV System

Solar UK is an MCS‑registered solar installer providing complete end‑to‑end solutions, including system design, product supply, installation, and ongoing maintenance. Our team ensures your solar PV system operates safely, efficiently, and at peak performance throughout its entire lifespan.

Why Add Solar Battery Storage?

Integrating a battery storage system is one of the most effective ways to enhance your solar PV investment. With the right setup, battery storage can:

  • Store surplus solar energy for use during evenings or peak-demand periods

  • Increase self‑consumption and reduce reliance on the grid

  • Improve energy efficiency and system performance

  • Provide greater flexibility in how you manage and use your power

Battery storage transforms your solar PV array into a smarter, more resilient energy system.

Unlock Even Greater Energy Benefits

When conditions are right, adding battery storage allows you to:

  • Sell excess electricity back to the grid

  • Combine solar PV, battery storage, and EV charging for a complete renewable energy solution

  • Reduce energy bills and boost site sustainability

This integrated approach gives you full control over how you generate, store, and use your clean energy.

Future‑Proof Your Energy System

Whether for a home or business, Solar UK can design a tailored solar battery storage solution that maximises savings and long‑term performance.

Contact Solar UK today to discuss your solar and battery storage options.

Battery Energy Storage for Commercial Customers

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The adoption of Battery Energy Storage Systems (BESS) is accelerating across the UK as prices stabilize and system capacities grow. At Solar UK, we install BESS solutions alongside:

  • Commercial rooftop solar PV systems

  • Ground-mounted arrays

  • Solar car park canopy projects

Optimized Design for Your Business

Our expert design team analyzes your generation and demand data to recommend the optimal BESS capacity—whether integrated with onsite solar PV or as a standalone energy storage solution.

Scalable Energy Storage Solutions

We offer a full range of commercial and industrial battery storage systems, from 10 kW units to multi-megawatt installations, tailored to your site requirements and energy goals.

Ready to reduce costs, improve efficiency, and future-proof your energy strategy?
Contact Solar UK today for a bespoke commercial battery storage solution.

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In today’s volatile energy market, UK businesses are increasingly adopting Battery Energy Storage Systems (BESS) to improve energy security, reduce costs, and boost operational efficiency.

BESS technology enables:

  • Load shifting – Store energy during low-cost periods and use it when prices peak

  • Peak shaving – Reduce demand charges by managing consumption intelligently

  • Integration with on-site renewable generation – Maximize solar PV and other green energy sources

By reducing reliance on the traditional grid and minimizing exposure to wholesale price fluctuations, battery storage systems help businesses optimize energy usage, support decarbonisation goals, and strengthen sustainability strategies.

Investing in BESS provides a competitive edge in a rapidly evolving energy landscape—future-proofing your operations and delivering long-term savings.

 

 

 

 

Commercial Battery Energy Storage Systems (BESS) allow businesses to store excess electricity generated during periods of low demand or from on-site renewable sources like solar PV systems. This stored energy can then be released during peak demand times, helping reduce reliance on the grid, improve load management, and lower demand charges and overall energy costs.

 

Energy reliability is a critical component of operational continuity in commercial and industrial environments. Battery Energy Storage Systems (BESS) provide instantaneous backup power in the event of grid instability, voltage sags, or complete outages. By supporting uninterruptible power supply (UPS) functions and enabling seamless load transfer, BESS ensure that mission-critical systems remain online. This operational resilience minimizes exposure to downtime-related financial losses, preserves process integrity, and supports compliance with reliability standards.

Learn about our service & maintenance plans

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Energy Contracts for Commercial Customers

As part of a forward-looking energy strategy, Solar PV and battery storage can play a big part in addressing your energy needs, but in the majority of cases the client is still left exposed to grid market uncertainty.  Having addressed onsite generation and storage, the remaining power demand, that bit left for the grid to supply, is often overlooked.

 

We don’t overlook it.  We address it.

 

Why securing the best energy contracts matters

Finance for Commercial Customers.

Finance can be a powerful tool for businesses of all sizes. It can deliver greater financial flexibility as you pay a regular, affordable, fixed amount in return for exactly what your organisation needs. 

Commercial Finance

Battery Energy Storage for Residential Customers

WARM HOMES PLAN The government has announced its plans to make green technology and energy upgrades more affordable. The government's Warm Homes Plan intends to support UK households in their transition to cleaner energy and lower long-term energy bills. The plan will provide direct funding support for low-income families struggling to pay their energy bills, who will receive free upgrade packages, depending on what technology and updates are most suitable for their homes. Alongside that, all homeowners will be able to apply for new government-backed, low or zero-interest loans to install: •solar panels •batteries Details on how to get a low or zero-interest loan will be released later this year, according to the Department for Energy Security and Net Zero (DESNZ). It will be establishing a Warm Homes Agency, which it says will make it easier to navigate a currently complicated system for accessing information, funding and installations.

Battery Energy Storage Systems (BESS) are now seen as an essential part of a solar strategy if the customer’s budget allows.  Installing PV first and then adding BESS later is quite feasible; it doesn’t have to be done all at once.

 

Many modern BESS systems are modular, and we can add them in stages to increase storage capacity in line with both demand and budget.  Just ask us for details.

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What is a battery energy storage system (BESS)?

Exactly what it sounds like; a battery or a bank of batteries that store energy, from either a solar PV installation or from the grid, or both.  A BESS can also improve the stability of the electricity grid, manage energy demand, and provide backup power during outages.

 

What are the advantages of using battery energy storage?

Grid stabilisation, by balancing supply and demand, especially with intermittent renewable energy sources such as wind and solar

Peak shaving: Reduces the need for expensive peak-time electricity by discharging stored energy during high demand

Renewable energy integration: Stores excess renewable energy for later use, reducing dependence on fossil fuels.

Backup power: Provides a reliable backup in case of grid outages.

Reduced energy costs: Helps reduce energy costs by storing power during low-demand periods when electricity is cheaper.

How long do battery storage systems last?

The lifespan of a battery energy storage system depends on the type of battery used and its usage patterns. Typically, lithium-ion batteries last around 10 to 15 years, while other types may have shorter or longer lifespans.

 

What is the cost of battery energy storage?

The cost of a battery energy storage system varies widely based on its size, type, and application.  In simple terms, the more storage you want (measured in kWhs), the greater the cost.  And so, whilst we always try to future proof a system to some degree, there is generally a point where it doesn’t make economic sense to add more storage.  We will be pleased to advise on any given situation.

 

How does BESS help with renewable energy integration for the UK?

BESS is a key technology for integrating renewable energy sources, such as solar and wind, into the grid. It stores excess energy when generation exceeds demand, which is then released when demand exceeds generation, thus ensuring a reliable energy supply.

 

Is battery storage suitable for off-grid applications?

Battery storage is a key technology for off-grid applications. It can store energy generated by renewable sources like solar panels or wind turbines and supply power in areas without access to the grid.

What are the maintenance requirements for battery energy storage systems?

Maintenance needs are generally minimal but will depend on the type and scale of the system. Regular monitoring, keeping the system clean, and ensuring proper ventilation are all important.

General FAQs

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SolarUK Limited

Vantage Point,
North Trade Rd,

Battle,
East Sussex, TN33 9LJ

01424 772 903

Office Hours   

Monday to Thursday
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Friday
08:00-16:00

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