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Environment beslut · Stockholms Stadshus AB · Meeting 2026-02-16 · Summarized 2026-04-02

Wastewater Plant Ownership Change and Cost Savings

Stockholm Vatten AB intends to reduce its ownership in Syvab AB, which operates the Himmerfjärdsverket wastewater treatment plant, from approximately 33 percent to about 14 percent. This is because Stockholm Vatten will be directing some of its wastewater to the Henriksdals treatment plant instead, leading to reduced use of Himmerfjärdsverket. Simultaneously, the municipalities of Ekerö and Trosa will become owners of Syvab, and Stockholm Vatten's guarantee commitment in Syvab will decrease from approximately 860 million SEK to about 225 million SEK.

Attachments

The original document is available at meetingspublic.stockholm.se.