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Our mission is to empower people, organisations and communities in making the transition to a low-carbon, resilient future


XD Consulting is an integrated sustainability consultancy providing multi-disciplinary advice and support in the area of renewable energy and energy efficiency. It was created by Xavier Dubuisson Eng. MSc. in 2007 on the basis of his now 20-year experience as a sustainable energy engineer having worked with leading organisations in this field in Ireland, Belgium and other European countries. The consultancy was incorporated as XD Sustainable Energy Consulting Ltd in 2011 and continues to grow its range of services and portofolio of clients in Ireland and abroad

Our approach to delivering services is based on a set of core principles:

  • Providing know-how built on experience, backed-up by ongoing research;
  • Engineering innovative, elegant and reliable solutions;
  • Communicating effectively with our clients and responding to their needs, context and aspirations;
  • Putting sustainable use of resources at the core of what we do and how we do it;
  • Delivering cost-effective services and uncompromised quality, consistently;
  • Facilitating positive change for our clients, our environment and communities locally and globally.

Over the years, we have developed strong partnerships with a network of leading experts from diverse backgrounds and complimentary disciplines at international level. No matter how big or complex your challenges are, XD Sustainable Energy Consulting will embrace them as its own.


What we can do for you 

We work with a multi-disciplinary team of experts so that we can address your needs, moving from concept to design. We believe in the wider community playing a key role in the sustainable energy transition. We can provide strategic advice and mentoring in clear accessible and non-specialist language. We aim to empower our clients by providing not just information but training, clear communication and helping them with their planning and strategic thinking.

Energy Master Planning

Pioneering local energy planning in Ireland, producing energy master plans for communities and local authorities.

Near Energy Zero Buildings

Passive house building design focused on robust, cost-effective solutions,

Renewable Energy Systems

Feasability Studies, design and engineering both at utility scale and in buildings.

Retrokit Toolkit

RetroKit is a software platform which helps housing providers and  professionals to plan their energy upgrade projects.

Get In Touch

XD Sustainable Energy Consulting Ltd

Rocksavage, Clonakilty,
Co. Cork, Ireland

Talk to Xavier on
Mobile: +353 (0)86 0476124