Pioneering Carbon Removal and Rural Innovation Through Microalgae and Biochar

Nellie Technologies has emerged as a frontrunner in the 2025 Earthshot Prize nominations, showcasing a groundbreaking solution for carbon dioxide removal through microalgal growth. Their innovative approach not only addresses climate change but also fosters economic growth and community engagement, making them a standout candidate for the prestigious award.

At the heart of Nellie Technologies’ solution is their proprietary technology, which leverages microalgae to capture CO₂ directly from the atmosphere. This method is faster, more efficient, and cost-effective compared to traditional carbon removal techniques. By harnessing the natural processes of microalgae, Nellie offers an organic and sustainable way to combat climate change.

Nellie’s solution goes beyond carbon removal by integrating biochar production into their process. Biochar, a stable form of carbon, enhances soil health and fertility, providing long-term benefits to agriculture. This dual-purpose approach addresses both climate and agricultural challenges, creating a circular economy that supports sustainable farming practices.

In Wales, Nellie has partnered with local farmers in Ceredigion to test biochar applications. These partnerships have resulted in improved crop yields and soil fertility, demonstrating the tangible value of their technology to the agricultural community. By empowering farmers to reduce their carbon footprint while increasing productivity, Nellie is driving sustainable practices in rural settings.

Nellie Technologies is not just an environmental innovator but also a catalyst for economic growth. By creating jobs in the green technology sector, they are proving that innovation can thrive in rural areas. Their commitment to community engagement is evident through their educational outreach programs, which involve schools, local communities, and events like the Royal Welsh Show. This proactive approach fosters collaboration and integrates community input into their operations.

Nellie’s modular and scalable design allows for deployment in diverse environments, setting it apart from conventional solutions.

Quote from Tom Turner, Abel + Imray:

It is great to see Nellie’s deceptively simple, innovative CO₂capture system being put into real-world use in the local community, and I’m delighted to nominate Nellie for an Earthshot prize.

Quote from Stephen Milburn, Nellie:

Tom and Abel + Imray’s support and technical expertise have been instrumental in protecting our innovative technologies and allowing us to exploit them to their full potential. Tom’s nomination of Nellie Technologies for the CIPA’s Earthshot recognition is a real boost for the business, and we’re incredibly grateful for the continued support. It’s great that organisations like Abel + Imray and the CIPA are able and willing to lend their backing to early-stage technology businesses like ours.