About Us

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Our Mission

  • To offer expert advice on all aspects of renewable energy
  • To install high quality systems efficiently, cost effectively and in accordance with best practice
  • To play our part in working towards a low-carbon future

Why choose Spirit?

Experienced installers, no subcontractors:

You can be assured that your system will be fitted by an expert installer with a proven track record: Our installation managers have been installing renewable technologies for several years in this country and overseas, and have carried out hundreds of installations.

We can provide testimonial after testimonial from satisfied customers impressed with our installation team. You are welcome to speak to previous customers; some of whom are even happy to show you around their system!

Full Technical team, experienced in both domestic and commercial renewable technology installations:

We pride ourselves on our in-house technical expertise. Our electricians and heating engineers have the knowledge and experience to provide a one-stop-shop for every aspect of an installation, including planning, structural advice and work ‘peripheral’ to the installation such as cable trenching and groundworks.

Full in-house design capabilities:

Our design team is responsible for providing our customers with the best solutions to suit their needs; they ensure our customers get the most out of their chosen renewable energy system. The team are all trained in Computer Aided Design software.

Exacting about customer service:

Installing renewable energy technology should be a rewarding experience and we make sure this is the case. We are committed to providing exceptional standards of customer service; our experienced staff are happy to help with any of your technical questions.

Each customer is allocated their own project manager to guide them through the installation process and offer assistance, if required, once the installation is complete. We can put you in touch with one of our – very many – satisfied customers if you would like to take a reference on us.

Test us out – give us a call now on 0845 475 3953, 9am to 5pm Monday to Saturday. We’ll answer within a few rings and give you specific, constructive advice on whatever you want to talk about.

We only install tried and tested quality products:

We take great care in product selection, aiming to combine quality and durability with best value for money. We don’t favour just one brand, preferring to offer you a range of options instead – so that you can choose how best to allocate your budget. Where possible we are accredited by the manufacturer for the products which we install.

Unbeatable guarantees:

If we go out of business, you don’t go out of pocket: We offer an unparalleled guarantee package backed by the Independent Warranty Association. Every time we carry out an installation, we pay IWA an insurance premium. This means that, if we go bust and something goes wrong with your equipment, IWA will pay for another accredited installer to sort out the problem.

Building Regulations compliance:

We aim for the highest standards on all installations. We also ensure that we comply with current Building Regulations.

For instance, on solar panel installations we work closely with qualified structural engineers to ensure that we comply with Building Regulations Parts A and C. We provide full structural calculations for you and for Building Control to make sure that your roof can take the additional load. We do not take the view (as many of our competitors do) that the load from the solar panels is immaterial. We know from experience that it is. So if your roof needs strengthening, we’ll make sure this is done.

Fully accredited under MCS and RECC:

We are accredited installers under the Microgeneration Certification Scheme. You need to use an accredited installer to be eligible for any present or future tariff payments under the Renewable Heat Incentive. In addition, we are members of the RECC assurance scheme and we abide by their code of conduct.

Fully insured and qualified

We are fully insured and qualified to carry out the works in your property.

What next?

Fill in our quote request form for a no obligation quote.

Call us to discuss your requirments or even arrange a FREE site visit.



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Microgeneration Certification Scheme

You must use an MCS approved contractor in order to qualify for feed in tariffs and the renewable heat incentive – Spirit Solar is accredited under the Microgeneration Certification Scheme (MCS) for solar PV and heat pumps (certificate number NIC 1220).

RECC Assurance Scheme

We are members of the Renewable Energy Consumer Code and adhere to the RECC Code of Conduct.

Which? Trusted Trader

We are proud to be be endorsed as a trusted trader through the Which? Trusted Traders Scheme.

NICEIC Approved domestic solar installer

NICEIC is the National Inspection Council for Electrical Installation Contracting, an independent consumer safety organisation.

Sharp Accredited Solar Installer

We are approved installers for all Sharp PV products.

Sunpower authorised partner

We are approved installers for all Sunpower PV products.

Mitsubishi Ecodan Installer

We are accredited to install Mitsubishi heat pumps

Accredited Dimplex Installer

We are accredited to install Dimplex heat pumps

Actio2n Surrey

We are trusted installers for Action Surrey.


We are members of the Independent Warranty Association. Our guarantee is therefore insurance backed with an independent insurance company.

Solar Photovoltaic

We install MCS accredited panels, which come with a 5 or 10 year defects guarantee and a 25 year (and intermediate term) performance guarantees, depending on the panel. For specific warranty details, by panel, please refer to our table of solar panels here.

We use a range of inverters such as SMA, ABB, SolarEdge and Omnik. These are the market leaders in inverter technology. They come with a 10 year warranty, which is extendable to 15, 20 or 25 years at additional cost.

We are extremely confident of the quality of our installations and are happy to offer a standard 5 year warranty on all our workmanship. We guarantee all of our workmanship will be free from defects for 5 years from the date of commissioning and that all equipment and materials have been installed in accordance with manufacturer specifications. In the first 10 years after installation we will correct free of charge any fault arising in the system as a result of defective workmanship by Spirit Solar Ltd. Where there is a need to claim on a manufacturer’s warranty within the first 5 years we will make the claim from the manufacturer on your behalf and we will replace the faulty equipment free of charge.

Heat Pumps

Mitsubishi and Dimplex heat pumps come with a 3 year warranty as standard. Hitachi heat pumps come with a 5 year warranty.

Our workmanship warranty is 2 years for ground source heat pumps and 3 years for air source heat pumps. We will investigate and rectify any query or complaint about your system in the first 2 years (ground source) and 3 years (air source) free of charge, with no call out fee.


We always endeavour to provide the very best service for our customers. However if you wish to log a complaint then please refer to the Spirit Solar complaints procedure.


Company background

Spirit Solar Ltd is an independent renewable energy company, specialising in the installation of high quality heat pumps, solar electricity, CHP, solar hot water and rainwater harvesting systems.

The company works both in the domestic market and in the non-domestic market, installing systems on schools, community buildings, in farms, warehouses and other commercial premises.

Spirit Solar is managed by an experienced team of electrical, structural and heating engineers supported by project managers, surveyors and installers. Together we are committed to building a successful, sustainable business by focusing on superior technical excellence and outstanding service. With in-house planning and engineering expertise we are able to ensure our systems are fully compliant with the applicable regulations, and, by using only top quality components and installers employed directly by the company, we are able to maintain the high standards of quality and safety that clearly set us apart from the competition.

Since December 2009 Spirit Solar has grown rapidly and now employs more than 50 people. We are big enough to be able to offer the full range of expertise needed to maximise the return from every installation, but small enough to ensure that every customer receives a personal service, tailored to their requirements.

The company founders

Spirit Solar Ltd is owned and managed by Ian and Erica Charles, entrepreneurs who between them have 35 years of experience in starting and building up businesses. Ian is a Chartered Accountant and has a degree in Medicine from Barts Medical College (1986). Erica has a degree in Pure Mathematics from Oxford University (1990) and more recently a Masters in Applied Mathematics and Scientific Computing, also from Oxford University (2007), during which she investigated the mathematical solutions of the problem of using fixed (non-tracking) mirrors to maximise the concentration of the sun’s rays on solar panels.

Ian and Erica own two businesses, one being Spirit Solar Ltd and the other being an internet retailer in the outdoor living / gardening sector (Meika Ltd, trading as Primrose London). Meika operates a range of websites, the largest of which is www.primrose.co.uk. Meika was started in 2003. It operates from an office in Reading and a 100,000 square foot warehouse in Winnersh, Berkshire.

Erica has had a longstanding interest in green issues and in the renewable energy sector. In 2009 she launched a Low Carbon Day for Schools which took place in June 2010, supported by 1600 schools. She launched Spirit Solar at the end of 2009, funded by profits from Meika Ltd.

Meet the Team

When asked why they like working at Spirit, everyone without exception mentions the fantastic people in our team. As a service organisation committed to excellence, people are our greatest asset.

Meet Team Spirit:


Director: Erica CharlesErica Charles started Spirit Solar at the end of 2009, having become increasingly excited about the benefits that renewable energy can bring both in meeting our energy needs and in reducing CO2 emissions. An entrepreneur by nature, prior to starting Spirit, she started Meika Ltd in 2003. Meika Ltd runs the gardening retail website www.primrose.co.uk and employs 120 people, working in the same building as Spirit. She has a first class degree in Pure Mathematics from Oxford University (1990), and more recently a masters in Applied Mathematics and Scientific Computing (2007), also from Oxford University, during which she investigated the mathematical solutions of the problem of using fixed (non-tracking) mirrors to maximise the concentration of the sun’s rays on solar panels.Erica has had a longstanding interest in green issues. Prior to launching Spirit she ran a Low Carbon Day for schools which took place in June 2010, supported by over 1600 schools.
DSC_0001crop Director: Ian CharlesIan Charles is a Chartered Accountant and has a degree in Medicine from Barts Medical College (1986). He has run businesses since the age of 25, ranging from a car spares business, to the garden retailer Meika Ltd, and more recently Spirit Solar.
Head of PV Installations: Justin ParsonsJustin joined Spirit in 2010 and now heads up our PV installation team. A qualified electrician, he has installed systems for schools, farms, corporates and community centres.
Head of Project Management: Vishal GigaVishal joined Spirit in Jan 2010. He holds a first class degree in Architectural Technology and Design. His extensive knowledge of building construction, technical design and computer aided design techniques has enabled him to understand and tackle every type of project. He has himself managed over 150 installations, from domestic PV to large non-domestic PV and heat pumps. He has excellent technical knowledge and a talent for finding his way around whatever problem we throw at him.
Sales and Business Development: Will DragonettiAt 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.Will prepared an awful lot of quotes, heat loss calculations and shading analysis before he was let loose and sent out to talk to potential customers about our systems and advise on the right system for their home/situation.Will joined Spirit after working for our sister company primrose.co.uk.
Accounts: Anne Marie GrahamAnne Marie does more than accounts; she is the engine of our organisation. She makes sure we stay up to date with all that “stuff” in the office; whether it’s health and safety, staff training or electrical tester calibration, Anne Marie is on the case. She also makes a mean cup of tea and some very fine brownies.