Deep Green Uses Data Center Heat to Warm Pools

Deep Green, a British start-up, launched a technology that supplies free heat to local businesses and public swimming pools, reducing their energy bills and cutting their reliance on carbon-intensive fossil fuel boilers.

Deep Green’s ‘digital boiler’ technology is a cloud data center that transforms the heat from its servers into useful hot water for local businesses. It is installed on-site at swimming pools or businesses with consistent heat needs, such as bakeries, distilleries, laundrettes and blocks of flats.

Exmouth Leisure Centre in Devon is the first site in the country to benefit from heat recapture by cloud data centers. The surplus heat donated by Deep Green’s unit will reduce the pool’s gas requirements by 62 percent, saving them more than £20,000 a year and reducing their carbon emissions by 25.8 tons.

There are more than 1,500 pools in England that could benefit. Energy costs for leisure facilities have increased 150 percent since 2019 and an estimated 79 percent face closure.

Using the ‘immersion cooling’ technology, Deep Green captures heat from the operating data center servers, transferring it into the site’s existing hot water system, for free. Around 96 percent of the heat generated by a Deep Green ‘digital boiler’ is recycled.

“Data is critical to modern society and demand for data centers is growing exponentially. However, this comes at a cost,” said Mark Bjornsgaard, CEO of Deep Green. “Current data center infrastructure is inefficient, using a huge amount of energy and generating a vast amount of waste heat. Yet, at the same time, there are many businesses that need heat and face increasing energy bills.

“By moving data centers from industrial warehouses into the hearts of communities, our ‘digital boilers’ put waste heat to good use, saving local businesses thousands of pounds on energy bills and reducing their carbon footprint. Pools are just the start and around 30 percent of all industrial and commercial heat needs could be provided by this technology,” he added.

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