01
Executive overview
Key findings
11.76%: non-revenue water in 2025, down from 17.1% in 2020 and below the 12.75% contract target
€13.7 million: investment executed in 2025, 67.4% of the €20.4 million budgeted
€0: bank borrowings at December 31, 2025, down from €2.2 million a year earlier
5,911 tCO2e: wastewater process emissions in 2025, up from 4,310 tCO2e in 2023
02
Buyer relevance
Who the report is for
Municipal and regulatory policy teams
See how the delegated management contract signed in December 2024 sets annual targets, and which three of the 13 indicators reported for 2025 were missed.
Wastewater treatment and energy suppliers
Locate the €4.5 million program at the Sobreiras and Freixo plants, including Freixo solar to 635 kWp and biogas recovery due in the first half of 2027.
Network, drainage and metering contractors
Set the NORTE 2030 renewal of 15.4 km against a water pipe rehabilitation rate that fell from 1.9% in 2020 to 1.22% in 2025.
Infrastructure lenders and grant advisers
Track a balance sheet with no bank debt, approved co-funding of about €12 million and investment execution of 67.4% in 2025.
03
Decision scope
Questions answered
How far has Porto reduced water losses?
Non-revenue water fell from 17.1% in 2020 to 11.76% in 2025, below the 12.75% contract target, and real losses fell to 58 litres per connection per day.
Is the company's carbon footprint falling?
Energy use fell 9.0% between 2023 and 2025, but market-based emissions rose 3.1% to 17,836 tCO2e as wastewater process emissions rose 37.1%.
Is funding holding back investment?
Bank borrowings were zero at the end of 2025 and investment equaled 66% of EBITDA, yet 67.4% of the €20.4 million budget was executed.
Which contract targets were missed in 2025?
Flooding (0.79 against 0.70 per 1,000 connections), discharge compliance (98% against 100%) and written complaint response (99.19% against 100%).
04
Inside the report
Inside the complete report
Executive Snapshot
1. From Service Provider to System Operator
2. System Intelligence and Digital Control
3. Energy, Carbon, and Resource Decoupling
4. Infrastructure Strategy for a Non-Stationary Climate
5. Customers, Demand, and the Water Prosumer
6. Governance, Regulation, and Institutional Reform
7. Capital Planning and Financial Architecture
8. Workforce, Capability, and Organisational Change
9. Strategic System Roadmap
Conclusion
Source Register
05
Public preview
What to watch next
7. Capital Planning and Financial Architecture
The FY 2026 execution rate against budget; drawdown of approved EU co-funding; whether the company returns to bank borrowing for larger works.
4. Infrastructure Strategy for a Non-Stationary Climate
Flooding occurrences against the 0.70 target; whether the 2026–2030 plan names stormwater or stream projects with budgets; water pipe renewal rates; discharge licensing at the two treatment plants.
6. Governance, Regulation, and Institutional Reform
The 2026 contract results; any revision of targets; ERSAR's 2025 assessment; how energy activities are accounted for alongside regulated water services.
3. Energy, Carbon, and Resource Decoupling
Process emissions in the 2026 inventory; completion of Freixo biogas recovery, due in the first half of 2027; the Freixo solar expansion to 635 kWp; a decision to scale the Freixo reuse pilot.
Climate exposure, renewal and treatment indicators, with investment by area for 2022, 2024 and 2025.
06
Included
What you receive
The complete PDF report: 15 pages, 12 sections, 22 tables and a register of 21 sources.
This edition
November 2026, First edition.
07
Evidence & method
Evidence and method
The report draws on Águas e Energia do Porto's audited annual reports for 2017 to 2024 and its 2025 integrated management report, ERSAR's service-quality assessments for 2020 to 2024, the company's 2026 tariff, service-level and sustainability reporting, and 2026 municipal and press reports on tariffs, governance and treatment plant projects.
Sources
21 sources, listed in the report's source register. Evidence current to 7 November 2026. Principal data periods: FY 2025 integrated management report (year ended December 31, 2025); audited annual reports for FY 2017 to FY 2024; ERSAR service-quality assessments for 2020 to 2024; the 2026 general tariff. Status of plans, tariffs and governance checked on November 7, 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.
08
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
09
Buyer FAQs
Before you purchase
Who can use the report?
Licensed for internal use within one purchasing organization. The PDF and its contents may be shared with colleagues within that organization. External redistribution, resale and public publication are prohibited without permission.
How is the report delivered?
The PDF is available to download immediately after confirmed payment, through our secure delivery system.
Can my organization buy wider access?
Institutional purchasing: For invoice enquiries, multi-organization licensing or broader access requirements, contact Our Future Water Intelligence.
10
Water Utility of the Future: Águas do Porto
- Format
- Length
- 15 pages
- Edition
- November 2026, First edition
- Price
- USD 499
11
Report details
Publication details
- Publisher
- Our Future Water Intelligence
- Report family
- Water Utility Intelligence Report
- Edition
- November 2026, First edition
- Format
- Length
- 15 pages
- Reference
- OFW_EXT_WATER_UTILITY_OF_THE_FUTURE_AGUAS_DO_PORTO_f50020778ef1
- Evidence current to
- 7 November 2026
14
Explore this report family
More Water Utility of the Future reports
Explore the same report family covering other utilities.
Water Utility of the Future
Water Utility of the Future: Thames Water
- Geography
- United Kingdom, Europe
- Edition
- October 2026 edition
- Length
- 15 pages
water utility of the future
Water Utility of the Future: Denver Water
- Geography
- Denver, United States
- Edition
- October 2026, Second edition
- Length
- 13 pages
Water Utility of the Future
Water Utility of the Future: Berliner Wasserbetriebe
- Geography
- Berlin, Germany
- Edition
- 2026 · v3
- Length
- 19 pages