Heading: Heat reuse background
With nearly every MW consumed by a data center converted into heat, the sector has a significant opportunity to support surrounding energy systems. Rising rack densities and liquid cooling improve heat capture, while efficient heat pumps and the Nordics’ cool climate strengthen reuse potential, especially as district heating faces headwinds. Without an active heat recovery strategy, this represents a missed opportunity both economically and from a sustainability perspective.
Heading: Heat reuse opportunity
Sweden, as a proxy for the Nordic counties, has 290 municipalities, 240 of which have district heating grids with a national base heat load of ca1.5GW, there is an abundance of places and heating needs that can benefit by data center heat reuse.
By integrating sites directly into surrounding energy ecosystems, SDC positions data centers not only as digital infrastructure, but also as thermal energy assets for the benefit of our communities and clients.
Heading: Scandinavian Data Centers approach
Through facility design and workload management, SDC optimizes the balance between low density and high density IT workloads to produce stable and predictable heat output. This enables SDC’s city partners tocapture and reuse waste heat efficiently within municipal district heating networks. By converting a byproduct of computation into a usable resource, SDC’s infrastructure helps heat homes, offices, and public buildings while reducing reliance on fossil fuels and other primary heat generation sources.
Heading: Auxiliary heat reuse benefits
When a data center supplies a stable share of a city’s heating demand, it enables central plants to operate more flexibly shifting focus toward electricity generation during peak cold periods and improving overall system efficiency, resilience, and responsiveness. At the same time, surplus heat can support applications like greenhouse agriculture, strengthening local food production and self-reliance. Realizing these benefits requires integrating heat recovery, grid planning, and secondary uses from the earliest stages of site selection and data center design.
