Our People

At Zestec, we are a close-knit, diverse family of experts with a shared passion for caring for our planet. We work seamlessly together to bring you exceptional service and honest advice on how your business can join us in driving net zero.

Dora Bartos

Finance Assistant

Dora Bartos

Dora is an integral part of our finance team and supports the business in different stages of the financial cycle. Dora loves an investigation so her analytical skills are perfect for keeping financial records in order and assisting with our financial processes.

Yvonna Balysz

Head of Legal

Yvonna Balysz

As our Head of Legal, Yvonna supports the Zestec Team with all legal stages in developing, installing and managing its solar projects, from initial heads of terms, contract negotiations and installation, to asset management. Yvonna is passionate about making a real difference in the fight against the climate emergency and has gained renewables experience in solar, biomass, EV charging and batteries.

Simon Booth

CEO

Simon Booth

Simon is our co-founder and CEO of Zestec. He has been delivering an integrated range of funded renewable energy projects for commercial and industrial clients since 2010 and in his current role, he leads a multi-disciplinary, highly talented, dedicated team of renewable energy professionals.

Cameron Beauclerk

Senior Asset Manager

Cameron Beauclerk

As a Senior Asset Manager, Cameron takes care of a variety of our operational new-build and legacy rooftop solar projects. Before that, after 4 years in commercial property, he worked for 3 years managing utility scale solar projects on behalf of community energy organisations around the UK.

Sophie Breakell

Business Development Manager

Sophie Breakell

In Sophie’s own words; ‘I was lucky enough to find Zestec early on in my career’ which was also fortunate for us. Sophie speaks with businesses looking to reduce their electricity bills and carbon output via a PPA. With a degree in Natural Sciences, she lives and breathes all things solar.

Neil Clayton

Co-Head of Project Delivery

Neil Clayton

Neil is our Co-Head of Project Delivery. With John, he leads our Project Management team and key accounts to ensure everything from designs, contracts, construction and management of a project runs smoothly for our clients.

Kate Erminasa

Head of Finance

Kate Erminasa

Kate oversees our financial planning and HR functions, ensuring our organisational goals align with nurturing a vibrant and productive work environment. To do this Kate has to seamlessly blend both HR and financial strategies to achieve organisational success.

Elizabeth Gibbons

Project Manager

Elizabeth Gibbons

Elizabeth manages the development of projects from feasibility and development phases, through contract negotiations and installation, to commissioning and handover to asset management. Communication is key to Elizabeth’s role, working with the end users and installation partners to deliver the projects on time and within budget.

Peter Hall

Head of Asset Management

Peter Hall

Peter leads the Asset Management team here at Zestec, focusing on asset performance optimisation and delivering exceptional customer service. Peter’s journey began in Chemical Engineering, but his career spans 15 years in the renewable energy sector, where he has gained experience across various technologies, including waste to energy, biogas, and solar.

Russ Kelsall

Project Manager

Russ Kelsall

Russ manages the development of projects from feasibility and development phases, through contract negotiations and installation, to commissioning and handover to asset management.

Sara Kershaw

Asset Manager

Sara Kershaw

As one of our Asset Managers, Sara plays a key role in ensuring our renewable projects continue to run smoothly and efficiently for the longevity of the contract. Sara will identify any underperforming projects and ensure that our O&M partner is on hand to get the problems fixed.

Liberty Kinlin-Martin

Solar PV Design Engineer

Liberty Kinlin-Martin

Liberty is our Solar PV Design Engineer. From the beginning of a renewables project, she runs the initial yield calculations to design the systems to suit the client’s needs, as well as working with James on the financial modelling, analysis of performance and technical reviews.

Yash Kulkarni

Head of Energy Transition

Yash Kulkarni

Yash is exploring opportunities to develop our proposition for energy transition technologies for Commercial and Industrial clients in the UK. Currently leading all the stages of a product solution’s development for funded Battery Energy Storage Systems from inception to proposition, to operation, to evaluation and improvement.

Tomasz Knutel

Finance Assistant / Data Analyst

Tomasz Knutel

Tomasz is our Data Analyst and Technical Developer, with a passion for innovation, leveraging data and technology to move green energy projects forward, specialising in the details needed to overcome challenges for a sustainable future.

Jakub Kusz

Client Engagement Executive

Jakub Kusz

Jakub identifies new opportunities for future projects through customer outreach and conducting surveys using geospatial analysis One of the key parts of Jakub’s role is to assist businesses in implementing green solutions while simultaneously supporting them in achieving net-zero goals and improving the environment.

Rachel Lenton

Business Development Manager

Rachel Lenton

Rachel is one of Zestec’s business development representatives focussing on UK renewable generation growth through client partnerships. Her expertise includes PV, e-mobility, energy storage, and green tech to support effective scaling.

Alex Lynch

Client Engagement Manager

Alex Lynch

Alex is leading the client engagement team here in hunting for new projects, partners, and opportunities to generate as much renewable energy as possible for the UK. After studying data analytics at Bournemouth University, Alex’s passion for renewables has driven him to lead the way in the analytical support for our commercial team and identify the space to grow green energy generation.

Felix Ma

Asset Manager

Felix Ma

Felix is one of our Asset Managers at Zestec. He is responsible for monitoring our portfolio of projects to ensure they are performing as efficiently as possible to match our client’s energy consumption.

James Mackinnon

Head of Technical Development

James Mackinnon

James runs our team that supports the delivery of projects from sales to installation and operation. As well as financial modelling, analysis of performance, and technical reviews, he also stays involved with training new team members.

Priyat Madhur

Asset Manager

Priyat Madhur

Priyat is part of the asset management and finance team where she monitors and analyses asset and portfolio performance and identifies where improvement could be made to maximise portfolio revenue.

Craig Miles

Management Accountant

Craig Miles

As Zestec’s Management Accountant Craig is primarily responsible for analysing and reporting the financial performance of our projects. His day-to-day role also encompasses budget renewal and monitoring, as well as providing support for annual financial account audits, among other responsibilities

Aidan Moran

Project Manager

Aidan Moran

Aidan is one of our Project Managers delivering PV systems from development through to commissioning and handover. After graduating with an MSc in Renewable Energy Systems Technology, Aiden worked as a project manager in Electric Vehicle Charging installations and Solar Home Systems product development.

Asher Prout

Senior Project Manager

Asher Prout

Ash is a dedicated solar Senior Project Manager, holding a Master’s degree in Mechanical Engineering, Ash brings a robust technical background to the table, coupled with a passion for sustainable solutions.

Jordan Smart

Business Development Manager

Jordan Smart

Jordan is a renewable energy specialist who is on a mission to help support and accelerate clients’ transition to a future powered by renewable energy with lower costs through expert advice and innovative energy solutions.

Toby Smith

COO

Toby Smith

Toby is our co-founder and COO who leads the delivery function at Zestec where he has designed and implemented the delivery systems and processes that have placed the business at the very top of the C&I funded solar PV market. Through the partnership with Octopus Toby has grown and developed the delivery team that is now successfully delivering for a diverse range of clients such as Amazon, major UK airports, and large multi-site programmes for major UK supermarket chains.

John Toms

Co-Head of Project Delivery

John Toms

As the Co-Head of Project Delivery, John is responsible for overseeing project delivery, stakeholder collaboration, and operations to create the strategic direction within the business.

Will Watson

Commercial Director

Will Watson

Commercial Director Will is responsible for the Business Development, Marketing & Client Engagement activity across the business. His team’s goal is to ensure we are delivering new revenue into the business allowing us to deploy Octopus capital into projects. They are also responsible for working with our key EPC partners to continue to deliver optimal projects to maintain our position as the funder of choice for PPA’s in the Commercial and Industrial market.

Samantha Whittle

Executive Administrator

Samantha Whittle

As Zestec’s Executive Administrator, Sam offers high-level support to the Leadership Team and Project Delivery Team, facilitating the growth of fully funded renewable solutions for our clients. With over 20 years of experience in business support and administration, Sam is keeping us in check with her dedication to enhancing organisational efficiency and productivity.

Anastasia Wills

Brand and Partnerships Manager

Anastasia Wills

As our Brand and Partnerships Manager, Anastasia combines marketing expertise with assisting the strategic growth plan for Zestec. She is responsible for elevating our brand and growing awareness of how we can drive businesses’ energy transition forward.