Water Systems Overview: Berliner Wasserbetriebe

Executive overview

Key findings

About 70%: share of Berlin's supply from bank filtration (utility statement, 2022)

€589.0 million: total investment in 2025 (actual); €691.3 million planned for 2027

–€149.8 million: net result for 2025 (actual), after a €309.3 million goodwill write-off

€1.694 and €2.155 per m³: drinking water and wastewater volumetric charges, unchanged for 2026

Buyer relevance

Who the report is for

Treatment and process technology suppliers

Track the Ruhleben, Schönerlinde and Münchehofe filtration and ozonation stages scheduled between 2027 and 2032 against their latest stated dates.

Lenders and public finance analysts

Set the 2025 net result of minus €149.8 million and planned 2027 investment of €691.3 million against the end of state profit waivers in the utility's planning.

Berlin and Brandenburg policy teams

See which decisions on charges, capital return and the mandate review sit with the Senate and the supervisory board it chairs.

Water resource and climate planners

Compare the planned Johannisthal and Jungfernheide yields of 12.8 and about 20 million m³ a year with 2027 planned volume.

Decision scope

Questions answered

How much spare drinking water capacity does Berlin have?

Average 2025 sales of about 594.5 thousand m³ a day used about 54% of the nine waterworks' 1,100 thousand m³ daily capacity, on an annual-average basis.

What has the State of Berlin given up to keep charges unchanged?

Profit waivers of €57.8 million in each of 2024 and 2025 and €82.6 million for 2026, €198.2 million in total; the utility's planning assumes none for 2027.

Did investment reach the levels announced in 2024?

No. The utility announced around €642 million a year for 2024 and 2025 and invested €574.0 million and €589.0 million; 2027 investment is planned at €691.3 million.

When will new raw water sources come online?

Reactivation of Wasserwerk Johannisthal is targeted from 2036; construction at Jungfernheide was foreseen from 2030, with no approval application filed as of September 2024.

Inside the report

Inside the complete report

Executive Snapshot

1. Water Resource Profile

2. Governance and Institutional Framework

3. Infrastructure and Service Delivery

Strategic Outlook and Opportunities

Source Register

Public preview

What to watch next

1. Water Resource Profile

Groundwater levels in the northeast and southeast of the city; sulfate trends at the waterworks as Lausitz mine-water pumping declines; any update to the 70% bank filtration share.

2. Governance and Institutional Framework

The coalition agreement and who chairs the supervisory board under the new Senate; the 2027 charge decision and its approval; adoption of the amended charging rules; the Senate's rate-of-return ordinance for 2027.

3. Infrastructure and Service Delivery

Network investment against plan in 2026, especially the pressure-pipe projects; long-running street works such as Landsberger Allee (expected to continue until the end of 2029); sewer extension in Karow and Buchholz, where up to 900 properties are to be connected by 2031.

Strategic Outlook and Opportunities

The 2027 charge decision; commissioning of the Waßmannsdorf sludge plant and the Ruhleben and Schönerlinde stages; the water-law approval procedures for Johannisthal and Jungfernheide; the outcome of the Senate's mandate review; the new strategic target framework.

Report page with a table of 2025 actual and 2026–2027 planned investment, EBIT and water volumes, followed by a table of major programs with scope and latest status. — Sample page · page 8 of 11
Capital outlook to 2027 and the status of Berlin's major treatment works and waterworks programs.

Included

What you receive

The complete PDF report: 11 pages, 6 sections, 10 tables and a register of 28 sources.

This edition

October 2026, First edition.

Evidence & method

Evidence and method

The report draws on the utility's FY 2025 annual report and 2020–2025 operating series, its sustainability reports and facility and project releases, Berlin Senate decisions and ordinances on charges and capital return, parliamentary written answers on project status, and German Environment Agency studies of the Spree basin.

Sources

28 sources, listed in the report's source register. Evidence current to 27 October 2026. Principal data periods: FY 2025 annual report (year ended December 31, 2025); operating series 2020–2025; charges in force for 2026; project status as of October 2026. All currency is euros (€)..

Evidence boundaries

This report uses authoritative source material available at the stated research cutoff. It distinguishes published facts, calculated values and analytical interpretation. No independent modelling is performed. Forward-looking analysis reflects published plans, documented trends and stated uncertainties. It does not constitute legal, financial, investment or engineering advice.

Lead analyst

Robert C. Brears

Founder, Our Future Water Intelligence

Robert C. Brears is a water-security specialist and author whose work examines utility governance, infrastructure investment, climate resilience and long-term water-system change for executive and policy audiences.

Decision-focused utility intelligence
Published water-policy author
Evidence-grounded system analysis

Buyer FAQs

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