“Watt Footprint was set up to deliver real energy savings for businesses. This is what we do on a daily basis.”

Paul Mahon and Paul O’Reilly founded Watt Footprint in 2020 with the mission of changing the way people see and use energy. By making energy usage visible, Watt Footprint makes energy saving smarter.

OUR SERVICES

Meet The Team

Paul Mahon

CEO AND FOUNDER
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Paul Mahon is the CEO and founder of Watt Footprint.
Having worked in the sustainability sector for the past 7 years, Paul has extensive experience working both internationally and domestically in providing energy savings for businesses. Paul is also a Certified Energy Manager (CEM) with specialist expertise in the areas of project delivery and structuring of capital finance for both large and small scale projects.
Paul leads the rapidly growing team at Watt Footprint with enthusiasm, intelligence, and wit.
Paul O’Reilly

CHAIRMAN AND FOUNDER
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Paul O’Reilly is the Chairman and founder of Watt Footprint.
Paul is an award-winning entrepreneur, speaker, author and energy consultant with over 25 years experience. He has been an advisor for both public and private sector organisations for energy efficiency and cost savings, including interpreting government and international legislation and advising businesses on financial models to capitalise on green funding opportunities including grants and supports. In 2016, Paul published a non-fiction guide for the Irish citizen to save energy in the modern world. The book had the same title of his company today; Watt Footprint.
Paul was the co-founder of the international engineering firm ORS which he sold in 2019.
Jeffrey Lyons

CHIEF RESEARCH OFFICER
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Jeffrey Lyons is the Chief Research Officer.
As head of Research and Development for Watt Footprint, Jeffrey is tasked with developing new products and services to drive energy savings for our clients. His primary focus is the design and delivery of Zero-Fifty, Watt Footprint's in-house Smart Energy Monitoring Device, which will form the heart of our energy management ecosystem.
Jeffrey a Master's degree in Complex Systems Engineering from TU Delft, he is well placed to address the myriad technical challenges that face our clients as they seek to tackle their energy consumption.
Jenny O'Reilly

INTERNATIONAL SALES AND MARKETING
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Jenny O’Reilly is the Head of International Sales and Business Development.
With 6 years experience working in international sales with Fáilte Ireland, Jenny has extensive experience in marketing and business development across such worldwide markets as Europe, the UK, UAE, USA and Ireland.
Jenny has been establishing Watt Footprint’s presence in the international market and preparing the company for rapid international growth.
Heather O'Reilly Duff

HR AND TRAINING DIRECTOR
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Heather O’Reilly Duff is the Director of HR and Training.
Heather is the driving force behind our Smart Energy Management Academy (SEMA) which is our in-house training academy to up-skill and cross-pollenate the knowledge and experience of the Watt Footprint team members.
Drawing upon her previous career as a Captain in the Royal Engineers, Heather brings a wealth of invaluable leadership and managerial experience to Watt Footprint. She has honed her skills through successfully leading high-performing teams both domestically and during operational deployments.
With Heather at the helm of the Smart Energy Management Academy, Watt Footprint is confident in its ability to provide top-notch training and cultivate a workforce that is prepared to meet the challenges of the ever-evolving energy industry.
Shereen Beatty

FINANCE MANAGER
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Shereen Beatty is the Finance Manager.
Shereen has over 12 years of experience in accountancy and has worked across a range of industries, such as within Travel, IT, Consultation and Services, and Telecommunications Software Development. She brings an array of experience to the table and is currently working towards an ACCA membership with an equivalent of a BSc degree in Finance.
Philip Goode

CHIEF TECHNICAL OFFICER
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Philip Goode is the Chief Technical Offer.
Philip has been working in the sustainability sector for the past 11 years on some of the largest energy efficiency projects in Ireland. He has undertaken the decarbonisation journey with public and private sector clients by producing roadmaps through feasibility studies and project management works on AHU heat recovery, CHP installations, Solar PV and range of renewable energy technologies including Heat Pumps to increase the efficiency of business operations.

Philip developed his initial engineering experience on high end, fast track commercial projects. This initial experience has grown into the project management of some the largest energy efficiency projects assisting clients to progress from concept phase to successful project completion.
Stephen St Leger

SENIOR ENERGY ENGINEER
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Stephen St Leger is a Senior Energy Engineer.
Stephen has a degree in sustainable energy engineering and a post grad in NZEB Design. Stephen is a certified energy manager with the association of energy engineers and a certified ISO 50001 internal auditor. Most of his experience is in industrial energy management, energy efficiency, energy auditing, renewable energy, net zero masterplans, and ISO 50001.
Su Heffernan

ENERGY ENGINEER
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Su Heffernan is an Energy Engineer.
Su is a recent Environmental Science Graduate from the University of Limerick. Over her four years, she developed a valuable skillset that helps her to apply her science and engineering knowledge to tackle the energy crisis in Ireland at the moment.
At Watt Footprint, Su is contributing her environmental knowledge, determination, passion for the industry, and strong initiative to help provide smart energy solutions to reduce Ireland’s carbon footprint.
Kevin Butler

ENERGY ENGINEER
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Kevin Butler is an Energy Engineer.

Kevin graduated from University College Cork shortly before beginning to work with Watt Footprint. Kevin has been working across multiple sectors and understanding the needs of different industry clients. He is working with agricultural, manufacturing, hospitality and many more clients around Ireland when delivering energy audits from the SEAI and LEO systems. Dealing with such a wide variety of people and industries has enabled Kevin to learn of many different and unique issues businesses face when considering their energy systems.
Fergal Gilmartin

ENERGY ENGINEER
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Fergal Gilmartin is an Energy Engineer.
Fergal is a recent energy engineering graduate from ATU Galway. Having studied in this field for four years, he has gained valuable skills and knowledge in areas such as renewable energy systems and building energy performance.
Fergal has quickly become an integral part of the team at Watt Footprint, bringing a wealth of knowledge and a passion for the industry.

Watt Footprint understands the importance of making a positive impact on the environment while also benefiting your finances.

That's why we take a proactive and hands-on approach to help you actively reduce your energy consumption and save money. With our expert guidance and cutting-edge software solutions, achieving significant energy savings becomes effortless and rewarding.

Great Place to Work

We're excited to share our Great Place to Work certification for the period of September 2023 to September 2024.

Our unwavering dedication lies in assisting our clients in reducing energy costs while championing sustainability. This achievement underscores our commitment to creating environmentally responsible and financially efficient solutions for our valued clients.

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Our Core Values

Do It Right

We take a holistic view, taking the whole picture into account and doing it right from the get-go. We don't cut corners. Setting our team and our clients up for success.

Adapt and Innovate

Innovation has always been at the heart of Watt Footprint. Our team will challenge the norm and adapt to achieve the best results every time.

Don't be an Activist, be an Actionist!

Watt Footprint was built on the founding principle of delivering real energy savings, taking action today for tomorrow. Our success is measured by our clients' results.

Open and Transparent

We believe active and effective communication is fundamental to building relationships. Our transparent, open-book approach is a key component in how we deliver projects.