XD SUSTAINABLE ENERGY CONSULTING LIMITED

XD Sustainable Energy Consulting Ltd is an integrated sustainability consultancy that helps people, organisations and communities transition to a low‑carbon, resilient future. Founded in 2007 by Xavier Dubuisson, an engineer with two decades of experience across Ireland, Belgium and wider Europe, the firm combines multidisciplinary expertise with ongoing research to deliver innovative, reliable solutions in renewable energy and energy efficiency.

The consultancy’s core services include energy master‑planning for local authorities and communities, design and engineering of near‑zero‑energy (Passive House) buildings, and feasibility studies for utility‑scale and building‑integrated renewable energy systems. In addition, XD Consulting offers the RetroKit software platform, which assists housing providers and professionals in planning and managing energy‑upgrade projects, and provides strategic advice, mentoring and training in clear, non‑technical language.

Based in Clonakilty, County Cork, XD Sustainable Energy Consulting works with a network of international experts to address challenges of any size, always putting sustainable resource use, cost‑effectiveness and quality at the heart of its work.