Powering Change

Installing since 2010 · 0118 951 4490 · info@spiritenergy.co.uk
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Welcome to Spirit Energy

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Skip to our Battery Offerings

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Store excess solar for self consumption

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Buy cheap, off-peak power, to store and use later

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Become more grid independent

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Increase bill savings

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Mitigate rising electricity costs

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Protect against power cuts

Why Choose Spirit Energy?

"We're a family-run solar specialist that has been installing solar panels and battery storage systems throughout the South of England since 2010. We pride ourselves on our 100% in-house technical expertise and installation work, as well as our attention to detail, industry-leading design work, customer care, and the quality of our post-install support.

Installing solar PV & battery storage is such a large investment that it's paramount to work out the best specification and system design to maximise your return on that investment and make sure that the system ticks all the boxes. As such, we provide a free, bespoke design service for all of our clients, and are prepared to go back to the drawing board as many times as it takes to finely tune the design and achieve the best system and investment return for every household and building.

If you'd like to understand what you get when you request a quote from Spirit Energy, take a look at our case study series, Sam's Solar Journey. I'd recommend video 4."

-Tok Charles, Spirit Energy

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Residential Battery Storage

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Tesla Powerwall 3

Spirit Energy is one of the most established and decorated Tesla Powerwall 3 Premium Partners in the UK. We won the Tesla Excellence Award in 2021 and 2024, and typically install over 250 Powerwall units every year. In 2024, Spirit Energy was lucky enough to be selected by Tesla to install the first Tesla Powerwall 3 in the UK.

Learn More About Tesla Powerwall 3

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Sigenergy SigenStor

Launched in 2022, Sigenergy has taken the UK battery industry by storm, offering a battery system that is pushing the industry forward with many technological advances. Spirit Energy works very closely with Sigenergy and we install a lot of single phase and three phase SigenStor batteries with power cut protection.

Learn More About Sigenergy SigenStor

 

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GivEnergy Home Storage Systems

Givenergy is a prominent, British battery storage brand which offers an extensive range of versatile storage systems to suit all needs. Spirit Energy is a Givenergy Platinum Installer, and we have installed a lot of their 9.5 kWh batteries as well as the highly regarded GivEnergy All in One. 

GivEnergy Battery Systems Knowledge Bank

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Victron & BYD Systems

Victron energy is one of the most established battery manufacturers in the world. Founded over 50 years ago, Victron began by building energy systems for commercial shipping vessels. Victron have since ventured into the home battery market, offering one of the most advanced and customisable battery systems available.

 

Victron Battery Systems Knowledge Bank

 

 

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How to learn more

Watch Spirit Energy on YouTube - the best way to keep up with solar
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Read Spirit Energy blogs - learn from experts
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Meet the Team

Tesla Powerwall 3 Technical Breakdown - Everything You Need To Know

Sigenergy SigenStor - Everything You Need To Know

 

What is the Best Solar Panel in 2025? How to Choose the Best Solar Panel?

Mitigating Shade from a Chimney - Enphase not worth it? - Sam's Case Study Pt 4

Octopus Energy vs Local Solar Specialist - Choosing a Solar Installer

The Steps to Getting Solar and Battery | From Enquiry to Installation

Do You Need Battery Storage?

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As Seen On

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Mark Golding - Vertical - Spirit Energy - Head of Sales

Mark Golding
Head of Sales & Design

Joined Spirit in 2016

My aim at Spirit is to make sure we get the right renewable energy solution for your home or business. It is a great feeling to take yourself off grid and generate your own power without needing to worry about power cuts or an increasing energy price over the next 25 years.

I have an in-roof PV installation at my home with a zappi and eddi. Having the technology you sell on your own roof fitted by the company you work for really helps to understand how the system works and what sort of experience a customer expects.

"At Spirit, we don’t believe in pushy salesmen. We employ well-trained and knowledgeable technicians who know our products, are up to date with the regulations and can carry out technical calculations. This lets us provide you with a detailed quote and plenty of guidance on what the best system for you is."

-Mark Golding, Head of Sales

Justin Parsons - Vertical - Spirit Energy - Head of Installations

Justin Parsons
Head of Installations

Joined Spirit in 2010

Justin is the backbone of the company and part of the leadership team. He has overall responsibility for the installers, electrical design and sign off of all systems as well doing a technical and structural survey for every project to ensure we can manage each job perfectly. His devotion and meticulous attention to detail has helped build Spirit into the reputable and trustworthy brand we are today. 

You will most likely meet Justin on your technical & structural survey where he will plan your entire installation and run you through every minute detail. 

"I know that the technical & structural survey is a step that other installers don't feel is necessary, but many of Spirit's customers appreciate the chance to talk to the actual installers before the installation date."

-Justin Parsons, Head of Installations

Accreditations

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Latest Case Study

Worcestershire - 5.52 kWp (Sep '25)

Worcestershire - 5.52 kWp (Sep '25)

In September 2025, Spirit Energy completed the installation of a solar PV and battery storage system in Worcestershire. By combining high-efficiency AIKO panels with cutting-edge Sigenergy battery technology, the project is set to deliver substantial bill savings, a strong financial return, and meaningful carbon reductions for years to come

Read more...

Latest Blog

How to Improve EPC Rating with Solar?

Posted by Alicja Kopinska on 10 Oct 2025
How to Improve EPC Rating with Solar?

Across the UK, businesses are under growing pressure to improve the energy efficiency of their buildings. Minimum Energy Efficiency Standards (MEES) currently prohibit the letting of commercial properties below an EPC rating of E, with government plans to raise the minimum to B by 2030. For property owners and facility managers, this shift is not just regulatory - it’s financial. Buildings with low EPC scores are becoming harder to lease, insure, or refinance.

Read more...

We've installed thousands of systems since 2010, helping to make buildings across the South of England more energy efficient, as well as helping people save money and reduce reliance on the grid.
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Spirit House, 25 Albury Close, Reading, RG30 1BD
(Location formerly known as 44 Portman Road, Reading, RG30 1EA)

Spirit Energy is the trading name of Spirit Solar Ltd  ·  UK Company Number 07138647

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