solar installers surrey

Top 5 Questions Businesses Ask About Solar & Battery Storage

A Guide for Companies in Hampshire, Surrey & Berkshire

With rising energy costs and growing sustainability requirements, more UK businesses are investing in commercial solar panels and battery storage systems. For organisations in Hampshire, Surrey and Berkshire, solar energy offers long-term cost savings, energy resilience, and reduced reliance on the grid.

Below, we answer the five most common questions businesses ask before investing in solar and battery storage.

1. How Much Does Commercial Solar & Battery Storage Cost?

The cost of a commercial solar and battery storage system depends on:

  • Roof covering type

  • Land size

  • Battery capacity required

  • Grid connection requirements

For most UK businesses, solar panels deliver a payback period of 4–7 years, with battery storage improving savings by increasing self-consumption and reducing peak electricity charges.

 

2. Is Solar & Battery Storage Worth It for My Business?

Yes — particularly for businesses that:

  • Operate during daylight hours

  • Have high electricity usage

  • Want predictable energy costs

  • Aim to improve ESG or sustainability credentials

Battery storage allows businesses to:

  • Store excess solar energy

  • Reduce peak demand charges

  • Improve resilience during grid outages

Although energy stored in batteries can be below consumption level, solar systems are especially valuable for manufacturing, logistics, offices, retail, and warehouses.

Case study highlight:
UKGEI installed a solar and battery storage system at a sports ground, enabling outdoor lighting to be powered sustainably while reducing grid dependency. The battery system stores solar energy during the day and releases it during evening events, dramatically lowering operating costs and carbon emissions.

solar and battery storage for commercial buildings
 

3. Do Businesses Need Battery Storage with Solar Panels?

Battery storage isn’t mandatory — but it significantly improves system performance.

Without batteries:

  • Excess solar is exported to the grid at lower rates

With batteries:

  • Energy is stored and used when prices are highest

  • Grid reliance is reduced

  • Overall return on investment improves

For many businesses in Surrey and Berkshire, battery storage is particularly effective where peak tariffs apply.

Real-world example:
One UKGEI commercial client invested in multiple battery storage units to protect their operations from inconsistent grid supply and peak-time disruptions. The system now stores energy during low-cost periods and releases it during outages and demand spikes — ensuring continuity and operational stability.

commercial battery storage for businesses
 

4. Are There Grants or Tax Incentives for Commercial Solar?

Although there is no single nationwide grant, UK businesses can benefit from:

  • Annual Investment Allowance (AIA) — claim up to £1 million against taxable profits*

  • Smart Export Guarantee (SEG) — payments for exported energy

  • Local authority or sector-specific funding (varies by region)

 

5. How Long Does Commercial Solar Installation Take?

A typical commercial solar project includes:

  1. Energy assessment and system design

  2. DNO approval (if required)

  3. Installation and commissioning

Most installations take a few weeks to a few months, depending on system size and grid approvals. Many rooftop commercial solar systems fall under permitted development, meaning planning permission isn’t usually required.

 

Conclusion: Solar & Battery Storage for Businesses in Hampshire, Surrey & Berkshire

Commercial solar and battery storage systems offer businesses:

  • Lower energy costs

  • Increased energy security

  • Improved sustainability credentials

If your business operates in Hampshire, Surrey or Berkshire, UKGEI can provide a site-specific feasibility study, tailored design, and full installation service.

Speak to UKGEI today to find out how much your business could save with solar and battery storage.

*AIA applies to qualifying plant and machinery only. Relief is capped at £1m per accounting period and subject to HMRC rules and business eligibility see here.

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Proven Commercial Solar & Battery Projects

UKGEI has delivered commercial solar and battery storage systems across a wide range of sectors — from warehouses and sports facilities to critical infrastructure sites requiring energy resilience.

  • Battery storage for inconsistent grid supply

  • Solar and battery systems for outdoor lighting

  • Commercial solar installations improving EPC ratings

 

Frequently Asked Questions About Commercial Solar & Battery Storage

Is solar and battery storage worth it for UK businesses?

Yes. Commercial solar and battery storage systems can reduce electricity costs, improve energy resilience, and support sustainability goals. Returns are often strongest where energy use is high and battery storage can reduce peak demand charges.

How much do commercial solar panels cost in the UK?

Costs vary depending on system size, energy usage, roof or ground conditions, and grid requirements. Most commercial systems deliver a strong long-term return, and battery storage can improve savings by increasing the amount of solar energy you use on site.

Do businesses need battery storage with solar panels?

Battery storage isn’t essential, but it can significantly improve performance. It stores excess solar generation for later use, reduces reliance on the grid, and can help protect operations during outages or periods of inconsistent supply.

Are there tax incentives for commercial solar installations?

In many cases, yes. UK businesses may be able to claim Annual Investment Allowance (AIA) on qualifying solar and battery investments, and you may also earn payments for exported electricity through the Smart Export Guarantee (SEG), depending on your setup.

How long does it take to install commercial solar panels?

Typical timelines range from a few weeks to a few months depending on system size, site access, and whether Distribution Network Operator (DNO) approval is required. Many rooftop systems can be installed with minimal disruption.

Can solar panels improve a commercial building’s EPC rating?

Yes. Solar PV can improve EPC performance by reducing carbon emissions and lowering a building’s energy demand, which can make the property more attractive to tenants and support better leasing outcomes.

Can solar and battery storage power outdoor lighting or facilities?

Yes. Solar and battery storage are ideal for sites like sports grounds where energy use extends into evenings. Solar can generate during the day, while batteries store that energy for use later to power lighting and other loads.

Does UKGEI install commercial solar systems in Hampshire, Surrey and Berkshire?

Yes. UKGEI provides commercial solar panel and battery storage installations across Hampshire, Surrey and Berkshire, including site assessment, system design, installation, and aftercare.