Summary
- Wirth Group’s Engrida project would place hyperscale data centre capacity on a former energy and industrial site in Philippsburg.
- The scheme has secured access to a 380kV grid connection, with a new substation and underground cable infrastructure planned.
- The project includes waste heat supply for local households, subject to further municipal and utility work.
Engrida, a Wirth Group project, is advancing plans for a hyperscale data centre campus in Philippsburg, Baden-Württemberg, using a former energy and industrial site as the basis for large-scale digital infrastructure.
The project has been presented to Philippsburg municipal council and is being taken forward under a special development plan called “DEC Daten.Energie.City”. It would use land across Campus Nord and Campus Süd in the Philippsburg-Huttenheim industrial park, including the former Goodyear site and land close to the former Philippsburg nuclear power station.
Grid access is the central asset. Engrida says it has a contract with transmission system operator TransnetBW for access to the existing 380kV extra-high-voltage level at the former nuclear power site. The scheme would also require its own substation near the switchgear and underground cable routes to connect the industrial park to the transmission infrastructure.
The project update published by Engrida sets out a campus model that combines data processing, energy infrastructure, and waste heat supply. The company says low-temperature heat from data centre cooling would be recovered for use in Philippsburg, with future discussions planned with neighbouring municipalities and municipal utilities.
The campus follows the grid
Philippsburg is not an established data centre market in the way Frankfurt, Amsterdam, London, or Dublin are. Its development case rests on electrical infrastructure, industrial land, and the ability to repurpose a location already shaped by heavy energy use. That makes the project a direct example of how AI-era capacity is being pulled towards sites where large power connections are already present or can be engineered with less delay.
Across Europe, developers are moving beyond the traditional assumption that demand starts in the nearest major cloud or financial cluster. Fibre and customer proximity still count, but large AI and hyperscale projects increasingly begin with a different set of questions: whether transmission capacity exists, whether a substation route is feasible, whether the local authority will accept an industrial load, and whether the electricity system can carry the demand.
The project also reflects the growing reuse value of energy sites. Former power stations, heavy industrial parks, and grid-adjacent land can carry the physical ingredients data centre developers now need: high-voltage equipment, road access, zoning precedent, technical labour, and local familiarity with large infrastructure. Those assets can reduce some delivery risk, although they do not remove planning, financing, construction, customer, or grid-management challenges.
TransnetBW’s involvement places the scheme inside a wider system under pressure from batteries, electrification, industry, and data centres. Connection requests are becoming a strategic allocation issue, not an administrative background process. If Philippsburg progresses, it will show how far an existing transmission asset can be converted into deliverable digital capacity.
Waste heat needs a customer
The waste heat plan gives the project a second infrastructure layer. Germany has tightened expectations around energy efficiency and heat reuse, and large data centres increasingly need to explain how rejected heat will be handled. In Philippsburg, the proposal is to connect data centre waste heat with local households, rather than treating it as a later sustainability claim.
Making that work will require more than warm water at the data centre boundary. District heat needs pipe routes, heat customers, temperature management, commercial offtake agreements, metering, backup arrangements, and year-round demand. Data centre heat is abundant, but it is not automatically useful unless the local heat network can absorb it.
That places part of the project’s credibility outside the data centre fence. Municipal utilities, nearby towns, and heat network developers will have to decide whether recovered heat can be turned into a functioning supply system. The planning process is likely to test how firmly that commitment is embedded in the project, and whether the heat plan is matched by engineering detail.
Philippsburg’s pitch is stronger than a standard greenfield campus because the electrical and heat narratives are both local. The site offers a route to reuse former energy infrastructure, create a new municipal tax base, and attach digital capacity to tangible civic infrastructure. Its next tests are less conceptual: planning approval, grid engineering, heat network design, financing, and customers willing to underwrite capacity at scale.
