Turning server heat into sustainable energy.
We recover data centres’ excess heat to power thermal-intensive processes – from urban farming to bioprocessing – unlocking new revenue, slashing operational costs, and driving circular innovation across industries.
Explore Our Mission
The Hot Air Company is a climate-tech social enterprise transforming urban waste into agricultural opportunity. Our mission is to help cities become regenerative and economically viable by connecting two major urban pain points — energy waste from data centres, and the environmental cost of imported crops. Sustainability isn’t a cost — it’s an advantage. We're here to make it scalable, circular, and profitable.
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We retrofit spaces in data centres with modular, heat-enabled biomanufacturing units. Out plug-and-play system captures waste heat - typically around 40°C - and transfers it directly to bio-processes that thrive in stable warm environments, such as alternative protein production, biopharmaceuticals, and sustainable materials.
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Waste heat from data centres—often exceeding 40°C—is captured using custom heat exchangers and redirected through insulated pipelines to nearby vertical farms. There, AI-managed environments harness the heat to grow high-value medicinal crops under optimal conditions. Harvested plants are supplied to NHS providers, pharmaceutical companies, and herbal suppliers. Any residual heat is reused, completing a circular thermal ecosystem. AI is hot right now — literally. That heat fuels growth.
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Building the world's smartest vertical farm means developing a research-driven facility and software platform to optimise growing conditions for a wide range of crops. The goal: to create a global plant knowledge base and a scalable heat recovery model that can empower vertical farms around the world.
Why this matters: by repurposing data centre heat, the system can save up to 30% in energy costs while cutting emissions from food and pharma imports. It supports resilient, local healthcare supply chains, builds green infrastructure, and helps create circular economies. Ultimately, it enables a new model for regenerative cities. Cool cities start with smart heat.
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