About Green Net Zero
Formed in 2022, Green Net Zero Limited was created with the sole focus of delivering projects which decarbonise existing buildings. The UK’s Net Zero Strategy relies heavily on buildings to achieve its 2050 target, with 80% of the buildings that will be present by that point already built and operational.
We pull on a wealth of experience and knowledge in the mechanical and electrical sector to advise our customers on the most technically and commercially suitable solutions to replace carbon-intensive technologies currently used in their buildings.
Green Net Zero is positioned to work directly for end-users, sustainability and building consultants, and facility managers, offering a single point of contact to undertake projects from concept to delivery. We work closely with our network of market-leading partners to offer a full range of mechanical and electrical services throughout the residential, commercial, and industrial sectors.
Our primary aim is to deliver high-quality projects that provide the biggest impact on our client’s carbon reduction strategies.
Kim Jenkins
My passion for sustainability started beneath the waves. I’ve always loved the ocean—scuba diving introduced me to the beauty of marine ecosystems and sparked a lifelong interest in conservation and environmental impact. That connection to nature has stuck with me and continues to influence the way I think about the built environment and our impact on it.
I began my journey in the social housing sector in 2006, where I quickly developed a keen interest in the built environment. Over the years, I progressed into roles overseeing property refurbishments and managing complex void programmes, reducing re-let times dramatically and saving significant revenue in the process. This hands-on experience gave me a strong grounding in housing, construction, compliance, and strategic operations.
When I moved into the mechanical and electrical industry, I brought that same mindset—focused on driving efficiency and fostering strong, reliable teams. My roles evolved from operations management to business support, where I led initiatives in HR, finance, compliance, and accreditation. I’ve always enjoyed solving problems, streamlining systems, and building resilient operations that help businesses grow sustainably.
In early 2023, I joined Green Net Zero with a clear purpose: to help organisations take meaningful steps toward decarbonisation. My role spans many areas of the business—from supporting client relationships and overseeing project delivery to shaping internal processes and helping the team grow. I’m proud to be part of a company that’s focused on supporting businesses to reduce their carbon footprint, improve energy efficiency, and adopt more sustainable practices.
I’m a firm believer in practical action, honest collaboration, and making meaningful change—because the choices we make now shape the world we leave behind.
James Carsley
With a background in mechanical and sustainable engineering — and a healthy dose of common sense — I help schools, businesses, and estates make practical progress on their journey to net zero.
At Green Net Zero, I specialise in identifying and delivering cost-effective, technically sound decarbonisation solutions tailored to each client’s building type, budget, and carbon goals. Whether it’s meeting changing legislation like MEES, tackling rising energy costs, or just doing the right thing for the planet, my approach is holistic, realistic, and always results-focused.
After earning both a Bachelor’s in Mechanical Engineering and a Master’s in Power & Sustainable Engineering from Swansea University, I cut my teeth in the building services world. I spent over three years designing and managing renewable and traditional M&E systems for new builds and refurbishments — experience that showed me just how much end users need clear, honest support in navigating the sometimes smoke-and-mirrors world of sustainability.
Now, I work closely with clients and leading manufacturers to ensure solutions aren’t just impressive on paper — but ultimately work, perform well, and deliver return on investment. I’m also currently working toward my Commercial Energy Assessor qualification (Level 4), to further support compliance and performance in complex buildings.
My core values? Conservation, sustainability, and delivering what’s actually needed — not just what looks good on a brochure. I’m here to help organisations move confidently toward a greener future, one smart solution at a time.