A 300-million-euro river water plant is being built in Dresden's north that will supply industrial water exclusively to chip factories. From 2030 onwards, the facility will deliver up to 67,000 cubic meters of Elbe water daily to production sites operated by Bosch, Infineon, GlobalFoundries and the TSMC plant under construction. The project is industrial policy operating quietly, far from the headlines surrounding Intel and Magdeburg. Yet it may prove the more critical location factor for Germany's most important semiconductor cluster.
Why water became a strategic bottleneck
Semiconductor fabrication plants rank among the world's most water-intensive industrial facilities. Each silicon wafer on which chips are structured undergoes hundreds of cleaning steps. Each requires ultra-pure water, which must be carefully treated and either recycled or discharged after use. This is no peripheral issue: Dresden's north concentrates fabs in tight proximity. Bosch operates a 300-millimeter fab there, GlobalFoundries produces two generations of chips, Infineon has completed its smart power factory. Since August 2024, ESMC, the joint venture of TSMC, Bosch, Infineon and NXP, has been constructing a European plant for 10 billion euros.
The city's existing drinking water network was not designed for this concentration of industrial demand. Sachsenenergie, Dresden's utility company, recognized the bottleneck scenario early: when ESMC begins production of 40,000 wafers per month from 2029 onwards, existing infrastructure will be insufficient for the cluster's expansion.
The Übigau river water plant: 67,000 cubic meters daily
The solution is a dedicated industrial water plant in the Übigau district, located directly on the Elbe. Sachsenenergie has commissioned Hochtief as general contractor for planning, permitting and construction. The facility draws water from the Elbe, treats it to industrial standards and delivers it via two new pipelines to chip factories in the city's north. Capacity: up to 67,000 cubic meters daily. Approximately 80 percent of the water used returns cleaned to the Elbe via the municipal treatment plant after production. According to operators, even at low water levels, less than 0.23 percent of the daily river flow is withdrawn.
Three parties share financing: the Free State of Saxony provides 100 million euros, the city of Dresden 50 million. Sachsenenergie itself covers the substantial remainder. Total investment exceeds 300 million euros including distribution pipelines. Operations are scheduled to commence in late 2030.
What sets Silicon Saxony apart from Magdeburg
Dresden's semiconductor cluster deserves comparison with the Intel project in Magdeburg, which was shelved in autumn 2024. Intel had announced a 17-billion-euro plant, subsidized with nearly 7 billion from the German budget. When Intel entered restructuring crisis, the factory remained unbuilt and funds unallocated. Dependence on a single company proved a structural risk.
Silicon Saxony in Dresden has grown differently. Siemens began chip manufacturing at the location in the early 1990s, building its first fab in 1994. Infineon emerged from this, as did further spin-outs and relocations. Bosch invested more than a billion euros of its own funds in its Dresden 300-millimeter fab. GlobalFoundries acquired another production complex. Today, roughly 12,000 people work in the cluster according to the Silicon Saxony industry association. The TSMC plant joins an established base that already produces, exports and accumulates technology. The water plant project follows this logic precisely: not a subsidy project for a single company, but infrastructure for a mature ecosystem.
Why the Netherlands and France are watching Übigau
International interest in the Dresden project is remarkable. According to Silicon Saxony, both the Netherlands and France are monitoring the model with an eye to their own semiconductor locations. Both countries are expanding chip production: the Netherlands around ASML in Eindhoven, France around STMicroelectronics and planned Crolles expansion. Water infrastructure is considered among the least replicable location prerequisites, because it extends beyond any single company site and is bound to geographic conditions.
Until 2030, work remains before the project launches. Building permits are in preparation, soil surveys in the Übigau area largely complete. When the plant is finished, TSMC/ESMC will already be producing for roughly a year. The tight timing is not project failure, but expression of the speed at which Silicon Saxony has developed over the past two years, faster than infrastructure could follow. The water plant closes this gap.