Our Team

About Us

Rob Johnston
Managing Director

rob@greenteamone.co.uk

Our managing director Rob has decades of experience in the renewable energy industry, having worked extensively in the domestic and commercial sectors.

He started his working life as a physics teacher, and so, as many of our customers constantly say, he is also great at explaining the science behind the technologies in a clear and understandable way.

Green Team One

Tom Eggerton
Technical Director

tom@greenteamone.co.uk

Technical director Tom came to us from a career as an aerospace test engineer, where he developed his deep technical knowledge and attention to detail. 

Having every qualification you can imagine, he deals with all things technical from site surveys and installations to MCS certification and compliance.

About Us

Creag Louttit-Vermaat
Business Development Manager

creag@greenteamone.co.uk

Creag’s studied maths and business at university, was a maths teacher and then spent 10 years working as a luthier before pursuing a career in renewables.

As well as developing Green Team One’s online presence and trying to find more people who may want solar, Creag is learning the company’s detailed design approach from Rob and Tom as the junior system designer.

About Us

Allan Farr
Project Manager

allan@greenteamone.co.uk

Allan’s previous career was as a project manager in food manufacturing. He holds formal project management qualifications and has transferred those skills into the renewable energy industry.

He is also a keen golfer and rower.

About Us

Debs Dunham
Operations Manager

debs@greenteamone.co.uk

Debs has spent several years working in the equine veterinary field both as a vet Tech (assisting Vets) and all things admin and customer focussed.

In her spare time, Debs loves hiking with her dog Kaiser, spending time with family and friends and having fun.

About Us

Ben Mansfield
Retrofit Manager

ben@greenteamone.co.uk

Ben spent 7 years with the army before being medically discharged due to an injury to his leg. Since then, he has worked in the retrofit industry, initially fitting insulation and then progressing to his current position, overseeing teams of installers for all Eco4 measures.

In his rare spare time, he enjoys snowboarding and golf.

About Us

Scott Johnston
Compliance and Legal

scott@greenteamone.co.uk

Scott studied Law at University, and manages compliance for Green Team One.

Having worked for many years in renewable energy, he is well placed to make sure the company is compliant and delivering expert services for our customers.

About Us

Ryan Kibble
installation engineer

Ryan is a veteran of the solar panel industry, having installed approaching 50,000 panels on domestic and commercial sites.

He’s also a fitness fanatic, and competes in endurance competitions both here and abroad.

About Us

Brindley Woodward
electrician

An ex-postman of 7 years (still wears shorts all year round), Brindley took a drastic career change 5 years ago to become an electrician.

New to fatherhood in early 2024, Brindley spends all his free time changing nappies and walking his dog.

About Us

Joshua Watts
Electrician

After studying sports at Hartbury College, Josh started an apprenticeship as an electrician in 2018. He’s learned the craft over time, and in 2024 he gained his renewables certifications.

He plays football for Longlevens, and is a big Chelsea fan.

About Us

Tom Lowery
Electrician

Tom is an experienced electrician who has been involved in renewables in many forms for many years. 

He is also a keen climber and enduro mountain biker.

About Us

Amy Kosmala
Electrician

After building up her own electrical business for 17 years, Amy took an office role while starting a family.

Now her boys are a bit bigger, she is enjoying returning to site between school hours.

About Us

Simon Whiteway
Software Specialist

Simon has undergraduate and Masters degrees in Military History, which he has never used even once in his decade of administrative and project management experience. Instead, he looks after all the exciting paperwork and spreadsheets behind the scenes at Green Team One.

Simon has two toddlers so his hobbies mostly include tidying up and running about after them. He has no regrets.

About Us

Matt Burnell
System Designer

matt@greenteamone.co.uk

Matt works part-time for Green Team One as a renewable systems designer and surveyor, having had various roles in renewables for over a decade. Since 2020, Matt has developed a keen interest in solar panel recycling, reuse and end-of-life, and on his off-days undertakes research in this field with the University of Exeter and ReSolar Ltd. He also sits as vice-chair of Solar Energy UK’s Responsible Sourcing Group.

When Matt is not thinking about solar panels, he attempts to play football and can occasionally be found strumming a guitar.

Our Mission Statement

Is to design and install bespoke renewable energy solutions with exceptional levels of diligence and quality.

What Makes us Different?

Our goal is to apply our deep knowledge of the latest technology and best design practices to your specific circumstances.

Here are some of the ways that we try and achieve the best outcomes for our customers:

We won’t lie to you, or apply the hard sell.
We never sign our customers on the dotted line at the survey. This is part of our commitment to best advice but is also in compliance to the Renewable Energy Consumer Code (RECC) which all installers should adhere to (in our opinion). This is a big investment, which you should take time over, so you won’t see us employing time pressure on you to rush you into a decision.

Our forecasts are sensible.
This may seem like a minor thing, but the effect of compound interest on the forecast revenue from the system makes a huge difference on it. We’ve seen other companies (in fact, it seems to be the norm), predict electricity rises of 7-8%, which just isn’t realistic. If you’re looking at a solar revenue table that says you’ll be saving £800 in year 1, and over £2000 in year 20, then you’re looking at a company that’s trying to tell you that electricity will rise in price by 7% per year. We think that’s nonsense. Prior to the energy shocks of 2022, electricity rose by an average of 3% per year for the past 30 years. We don’t have a crystal ball to see what they’ll do in the future (no one does), but we think it’s realistic to use 3%.

If it doesn’t look like installing solar makes financial sense for your circumstances, we won’t try and tell you that it does.

Solar Panel Installation in Magor, near Newport
Green Team One

We put ourselves in your shoes when making design recommendations.
For example, it would be simpler for us to suggest putting the inverter and battery in the loft, and some companies do this as standard. It’s usually less work for the installers, and would save us money. But electronics work best when they’re cooler (which is why your PC has a fan in it). So when inverters are put in the loft, when the Summer sun comes and the solar yield is highest, the inverters are working less efficiently than they ideally would, due to the heat.

We will give you a technical survey before the installation.
Getting solar is a big investment, and you want to make the best decisions and make sure you’ve understood it all. Every customer of ours gets a technical survey to discuss all of the design decisions, so that you know exactly what to expect when the install time comes around, and can have the time to make informed choices.

We aren’t married to one manufacturer, and we don’t have a warehouse full of stock that we bought 6 months ago.
The hardware that’s available in this industry changes rapidly. When we’re designing your system, we’ll look at the hardware that’s available on the entire market right now, and choose what we think is the best for you.

We get hardware delivered to our warehouse first.
It would be cheaper and simpler to get the kit delivered to your house, and some companies do this. But occasionally there’s a problem with what’s been delivered; it could be a damaged panel, or the wrong inverter. Everyone makes mistakes: we use the same suppliers as everyone else, and occasionally humans make errors. By getting your kit delivered to our warehouse a few days before your install is due to take place, we can check it over and make sure that if a mistake has been made, we can catch it and fix it before the install date, so that things run smoothly on the day.

We’d much rather not sell you finance.
Like all installers, we can broker a finance solution for you. But compound interest makes a huge difference to your wealth, and the 11-12% interest rate that we’ll be able to find you will almost certainly be worse than the rate that you’ll be able to get from the bank yourself. Don’t get me wrong, selling on finance can make things sound more appealing, but it’s usually not the best advice.

Our level of workmanship is second to none.
We set very high standards for our installers, who will always do a tidy, precise job. Read our reviews for the customers’ views on this, and everything else that’s written above.

Solar Batteries Gloucester


About Us

Local works for us and for you

Green Team One’s headquarters is in Tortworth, just off Junction 14 of the M5.

We cover:

  • Gloucestershire
  • Somerset
  • Wiltshire
  • Oxfordshire
  • Herefordshire
  • Worcestershire
  • South East Wales

Our offices are open for meetings if you would like to come in and discuss your project.

Contact Us

Our Accreditation and Governance

All our installations, procedures and certifications are governed by the Renewable Energy Consumer Code (RECC) and the Microgeneration Certification Scheme (MCS) installer standards. As RECC Members, we have agreed to abide by the high standards set out in the RECC Consumer Code, following the consumer journey from start to finish. This also includes The Deposit and Workmanship Warranty Insurance Scheme Working with MCS defines, maintains and improves the quality of our installations by certifying low-carbon energy technologies – including, solar, battery storage and heat pumps.
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Ready to take the next step?

We will assess your property to see what solutions are possible, we can tell you about government incentives, the latest technology, our implementation process, financing, and much more should you wish to know.