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Executive overview
Key findings
€2.5 billion: investment plan for 2026–2035, led by €965 million of Eastern Attica sewerage projects (plan, H1 2026 report)
About 2.1 million meters, about €300 million: smart-meter program at technology evaluation, with its tender targeted for H1 2027 (planned)
73.47%: renewable share of total energy consumption in 2025, up from 61.05% in 2024 (actual)
About 43 providers: to be absorbed across Attica, Boeotia, Phocis and Evia under Law 5325/2026, with special succession expected by July 31, 2027 (law enacted; succession not yet completed)
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Buyer relevance
Who the report is for
Metering and digital-water suppliers
Time bids around the smart-meter tender targeted for H1 2027 and the SCADA, ERP and digital-twin work already under way.
Wastewater contractors and engineering firms
Track the Rafina/Spata re-tender (€94.02 million excluding VAT), the Marathon award and the Psyttalia Phase 3 study against the €965 million Eastern Attica line.
Investors and lenders following EYDAP
Read the 2025–2029 allowed-revenue path, the €323 million disputed claim and the €250 million EIB line (no drawdown reported) side by side with actual absorption.
Energy developers and public-sector advisers
See the seven PV stations (9.72 MW), the 13.99 MW Psyttalia biogas plant and the stormwater and irrigation duties added by Law 5325/2026.
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Decision scope
Questions answered
How much has EYDAP actually invested?
Absorption was €77.5 million in 2025 and €39.2 million in H1 2026; the €2.5 billion for 2026–2035 is a plan, not spending.
When will EYDAP tender its smart meters?
The program for about 2.1 million meters, at about €300 million, is at technology evaluation, with the tender targeted for H1 2027 after slipping from 2023.
What does Law 5325/2026 change?
It extends EYDAP into Boeotia, Phocis and Evia, adds stormwater and irrigation, and requires special succession of about 43 providers by July 31, 2027.
How far has EYDAP moved on renewable energy?
Renewables were 73.47% of total energy consumption in 2025, up from 61.05% in 2024, and seven PV stations totaling 9.72 MW have been tendered.
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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
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Public preview
What to watch next
2. System Intelligence and Digital Control
Launch of the smart-meter tender and its lot structure; full-year 2026 NRW against the 25.46% recorded in H1 2026; results from the satellite leak-detection pilots.
6. Governance, Regulation, and Institutional Reform
RAAEY's response to the €323 million review request; the Council of State hearing; RAAEY's role in approving the valuations for the new territory.
7. Capital Planning and Financial Architecture
Full-year 2026 absorption; first drawdown under the EIB line; whether the €2.8 billion figure becomes the formal plan.
9. Strategic System Roadmap
Bid opening and award for Rafina/Spata; Marathon contract signing; the smart-meter tender notice; completion of the first special successions.
The strategic roadmap: dated milestones from end-2026 to 2040, with the status of each as of November 12, 2026.
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Included
What you receive
The complete PDF report: 16 pages, 12 sections, 23 tables and a register of 22 sources.
This edition
November 2026, First edition.
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Evidence & method
Evidence and method
EYDAP's annual financial reports through FY2025, its H1 2026 semi-annual report, its ESG metrics and sustainability statements, the RAAEY decisions and EYDAP's tariff proposal for 2025–2029, the EIB project page, and dated Greek press reports on procurement status checked to November 12, 2026.
Sources
22 sources, listed in the report's source register. Evidence current to 12 November 2026. Principal data periods: FY2025 annual financial report (year ended December 31, 2025); semi-annual financial report for January 1 to June 30, 2026; the 2025–2029 regulatory period approved on December 30, 2025; project and procurement status as of November 12, 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.
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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.
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Water Utility of the Future: EYDAP S.A.
- Format
- Length
- 16 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
- 16 pages
- Reference
- OFW_EXT_WATER_UTILITY_OF_THE_FUTURE_EYDAP_S_A_37e220bbfff7
- Evidence current to
- 12 November 2026
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