'No hesitation in recommending Spirit Energy'

 -Peter Dennis, Managing Director, Philip Dennis Foodservice

'Superior level of technical design'

-Sam, Berkshire Homeowner

'Installation was better than seamless'

 -Giles Owen, Operations Director, Hansgrohe UK

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Spirit Energy is one of the most experienced solar and battery installers in the South of England, specialising in the bespoke design and installation of solar and battery storage systems. Founded in 2010, we have installed over 6,000 solar and battery systems, helping homeowners and businesses save millions on electricity bills, become energy independent, and cut their carbon footprints.

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Design your own solar & battery storage system using our free online calculator

In 2016, Spirit Energy designed and built the first online free solar calculator tool to allow homeowners and business owners to design their own solar and battery storage systems without needing to contact installers.

It's so accurate that we've even come across other solar and battery installation firms that use it to design their own solar systems!

The solar calculator is very flexible and allows you to design a system that incorporates both solar and battery storage, or just one of the technologies. You can see how your chosen system will perform alongside any heat pumps and electric vehicles that you may have, as well as the different savings that you'll achieve on the various different electricity tariffs are available.

Of course, the solar and battery calculator is no substitute for getting a bespoke quotation from one of our highly trained, in house solar specialists, however if you're just looking to play around with different system designs or to see how many panels your roof can fit, then it's certainly worth taking a look.

Why Choose Spirit Energy?

Spirit was founded by Erica Charles, a mathematician who returned to Oxford in her 30’s to complete a Masters on the maximisation of photon capture by solar panels. Anyway, the maths taught her that a well-designed and well-installed solar system will generate a considerably superior return on investment compared to one where insufficient attention has been applied to the design details.

That ethos continues today with Spirit’s commitment to recruiting the finest engineers and installers and providing them with the best in-house technical training that the industry can offer… regardless of the cost…

-Ian Charles, Financial Director

Established 2010 - Spirit Energy35 Staff - Spirit Energy100% In-House Installation & Design Team - Spirit Energy136 Years of Combined Experience - Spirit EnergyFamily Business - Spirit Energy

Ian Charles - Financial Director - Spirit Energy - Compressed - Cropped 2

Ian Charles        Financial Director

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Vishal Giga
Operations Director

Joined Spirit in 2010

Vishal joined Spirit Energy a few months after Erica and Ian founded the business in 2010 as a project manager, and is now our Operations Director. All of our project managers and installers are in-house, and Vishal oversees them all and is in charge of making sure that every project goes smoothly and is installed on time. Vish has a wealth of experience with both commercial and residential projects, and directly manages every commercial project that we do, including our installations at Philip Dennis Foodservice in April 2024, and Hansgrohe's headquarters in September 2024.

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. 

"My ultimate goal is to ensure our operations run smoothly, delivering exceptional customer service and top-quality installations to every customer, domestic or commercial."

-Vishal Giga, Operations Director

"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

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Some of our Commercial Case Studies

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Latest Case Study

Cathedral Hill Industrial Estate - 500 kWp & 26 x Tesla Batteries (Jun '23)

Credit - Cathedral Hill

Introduction

In a significant move towards sustainability and energy efficiency, Savills Investment Management embarked on an ambitious solar energy project with Spirit Energy on their industrial estate on Cathedral Hill in Guildford. Today, the estate is home to prominent tenants such as Halfords, Screwfix, and Topps Tiles, who benefit from the renewable energy solution provided. Over a two-year period, from 2021 to 2023, Spirit Energy successfully installed a comprehensive renewable energy solution across 13 newly refurbished units. The project combined 500 kWp of solar PV capacity with 351 kWh of battery storage, ensuring significant energy savings and carbon footprint reduction for future tenants.


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Latest Blog

Sigenergy SigenStor - The Future of Residential Battery Storage?

Posted by Luke Pemberton on 16 Jan 2025

The Sigenergy SigenStor, by offering groundbreaking innovations in scalability, smart control, off-grid capabilities, and integrated EV charging, redefines what homeowners can expect from energy storage solutions. Unlike many existing systems that offer rigid configurations and somewhat limited flexibility, the SigenStor brings a new level of adaptability and forward-thinking design to the market.

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Some Products We Work With

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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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