Green heat and the energy transition

Insights from the Datacloud Energy and ESG Conference 2025 -Energy transition and green heat

Brussels hosted the highly anticipated Datacloud Energy and ESG Conference. The event brought together industry leaders, including Cara Mascini and Edgar van Essen from Switch Datacenters, to discuss the future of sustainable data centers. The conference was a melting pot of ideas, innovations, and strategies aimed at tackling the pressing challenges of energy efficiency and sustainability in the data center sector as well as the combined energy transition for grid companies and other energy providers.

Key Observations
One of the most significant observations during the conference was the growing emphasis on heat reuse or better said the use of green heat from datacenters by communities or businesses. Speakers highlighted the urgent need for more data centers to be abe to  adopt greener practices to reduce their environmental impact. Cara Mascini, Chief Sustainability Officer at Switch Datacenters, emphasized the importance of collaboration with local authorities and operators to identify opportunities for these heat transition projects whereby renewable eneergy can be used for good twice, once to process data, another time to heat up a home or greenhouse.

Examples of Sustainable Data Center Projects and Heat Reuse
Several innovative projects were showcased at the conference, demonstrating the potential of sustainable practices in the data center industry. One notable example is the Switch Datacenter and municipality Diemen  project in the Netherlands with the potential to provide heat to tens of thousands of homes and buildings.

Bottlenecks to Making Data Centers More Sustainable
Despite the promising advancements, several bottlenecks hinder the widespread adoption of sustainable practices around the use of renewables and green heat provided by data centers. One major challenge is the power infrastructure bottleneck. Data centers require a reliable and continuous power supply, which can strain existing power grids, especially in regions with high data center density. The need for 24/7 power with high redundancy levels further complicates the integration of renewable energy sources. The green data heat can alleviate some of these bottlenecks. For instance Switch datacenters upcoming project to provide heat to 50 greenhouse enterepreneurs in the De Kwakel area south of Amsterdam anables the local heat transition by alleviating invetsment and heavy deployments fro the local grid company therby enabling the local energy transition.

Addressing these concerns requires a collaborative approach involving policymakers, industry leaders, and local communities to develop sustainable solutions that balance growth with environmental responsibility.

Conclusion
The Datacloud Energy and ESG Conference 2025 highlighted the critical need for sustainable practices in the data center industry. With innovative projects like Switch Datacenters green data heat initiatives, the potential for greener data centers is evident. However, overcoming bottlenecks such as power infrastructure and supply chain constraints is essential for achieving widespread sustainability. As the industry continues to evolve, collaborative efforts and regulatory frameworks will play a pivotal role in shaping a sustainable future for data centers.