The document discusses an Austrian wastewater treatment upgrade project in Vienna that was financed by the European Investment Bank's (EIB) Climate Awareness Bonds (CAB). The upgrade included a new sludge digestion system and stormwater retention basins. The EIB provided €130 million loan for the €260 million total project cost. The project was completed on time and on budget in 2021. It allows Vienna's central wastewater treatment plant to become a net energy producer and save 40,000 tons of CO2 emissions annually.

1. Austrian wastewater treatment upgrade
financed by EIB’s Climate Awareness
Bonds (CAB)
Marco Beroš,
Lead Engineer, Water Management Division
Projects Directorate
EUROPEAN INVESTMENT BANK
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The presentation will be shared with participants after the session.

2. Contents:
- EIB, the Climate Bank
- A brief introduction to CAB and SAB
- Case Study: Vienna’s sludge project
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EIB, the Climate Bank
EIB’s Climate Action Commitment - General
OECD - DG ENV - Water Investment Planning & Financing Workshop
“As the largest multilateral provider of climate finance worldwide, we
commit at least 25% of our lending portfolio to low-carbon and
climate-resilient growth.” (2016)
“The EIB will increase its level of support to climate action and
environmental sustainability to exceed 50% of its overall lending
activity by 2025.” (EIB Group Climate Bank Roadmap 2020-2025)
We want to
demonstrate the
climate impact
(adaptation and/or
mitigation) of all
our projects!
In 2020 EIB’s climate
financing totalled EUR 24.2
Billon (37% of total lending).

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EIB, the Climate Bank
EIB’s Climate Action Commitment - Adaptation
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Standard Terms of reference for Climate Risk and Vulnerability Assessments (CRVA),
available upon request (in English, French, Russian)

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EIB, the Climate Bank
EIB’s Climate Action Commitment - Technical Assistance
OECD - DG ENV - Water Investment Planning & Financing Workshop
A single access point to a comprehensive offer
of advisory and technical assistance services
for all stages of the project cycle
CAPACITY BUILDING RELATED TO PROJECTS
Capacity building on technical issues – Cooperation centres of expertise -
Dissemination best practices & case studies
UPSTREAM
• Policy &
program advice
• Preliminary
project
assessment
PREPARATION
• Technical advice to our
clients prior to appraisal (ToR,
CBA)
• Advice on financial
structuring (PPPs,
investment platform &
innovative projects)
• Selection & supervision of
consultants for project prep.
IMPLEMENTATION
• Advice on project
implementation
• Enhanced
monitoring in
delayed projects

6. A brief introduction to CAB and SAB
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CAB SAB Investor Presentation (eib.org)

7. RAISING MONEY
ON THE CAPITAL MARKETS
BORROWING
IN 2021
billion
€55.26
LARGEST
SUPRANATIONAL
ISSUER OF GREEN
BONDS
AMERICAS
EUROPE
ASIA
MIDDLE EAST
& AFRICA
14%
64%
2%
20%
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A brief introduction to CAB and SAB

8. BORROWING
IN 2021
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A brief introduction to CAB and SAB
CAB & SAB eligibilities (Objectives & Activities) today (January 2022)

9. BORROWING
IN 2021
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A brief introduction to CAB and SAB
CAB & SAB issuance in EIB’s total funding

10. Case Study: Vienna WWTP’s new Sludge
Treatment plant
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Case Study: EOS Project, Vienna WWTP
The EOS project is part of a larger
operation with EBS, Vienna’s
wastewater utility:
• The EOS Project: new sludge
digestion system to use biogas as a
renewable energy source to produce
energy through a Combined Heat
and Power plant.
• Three storm water retention basins:
Simmering (34,500m³), Gelbe Haide
(7,000m³), and Blumental (20,000m³)
• Renovation and upgrading works at
the wastewater treatment plant (grit
removal, etc.) dating from 1980
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1. Introduction

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Case Study: EOS Project, Vienna WWTP
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Component At appraisal
(2014)
At completion
(2021)
EOS project 200 204
Renovation works in the WWTP 10 19
Storm water basins 40 37
Contingencies 50 -
TOTAL 300 260
2. Cost breakdown and financing (in EUR million)
Origin of funds At appraisal
(2014)
At completion
(2021)
EIB Loan 150 130
Own resources & other loans 150 130
TOTAL 300 260

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Case Study: EOS Project, Vienna WWTP
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3. Timeline
• 2012: first contacts with EBS
• 2014: project appraisal
• 2015: signature of the finance contract and start of works
• 2020: end of works
• 2021: project completion and start of operation
4. Reporting under CAB for the yearly CAB & SAB audit, example 2019
CAB impact report 2019 (eib.org)
Project
number
Project name
Project
location
Sector
Main Sub-
Sector
Total
project cost
(EUR m)
EIB's share in
total project
cost (%)
EIB's signed
loan amount
(EUR M)
Project
economic life
(years)
CAB-eligible
component (%
of total project
cost)
RE
component
(% of total
project cost)
EE
component
(% of total
project cost)
20140123
EBS - ENERGY OPTIMISATION
SLUDGE TREATMENT
Austria RE
Energy from
waste
300 50% 150 30 41% 41% 0%
10 0 79 10 83 0.0 0 0 90 0 20.5
Smart
energy
meters
installed
2019 indicators PROJECT-LEVEL DATA
Expected total project result / impact for a representative year of project's operations
Renewable
electricity produced
(GWh-e/y)
Relative
GHG
emissions
(kt CO2e)-4
Allocation in
EUR m from
CAB (2019)
Total
transmissio
n lines (km)-
6
Renewable
electricity
capacity
rehabilitated
(MWe)
Renewable
electricity
capacity added
(MWe)
Absolute
GHG
emissions
(kt CO₂e)-4
Primary
energy
savings
(GWh/y)
Renewable
heat
capacity
added (MW-
th)
Renewable
heat
produced
(GWh-th/y)

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Case Study: EOS Project, Vienna WWTP
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5. Results
• Project completed on budget and on
time (slight delay only due to COVID
crisis and challenging works under
operation)
• Vienna’s central WWTP becomes a net
energy producer (total production of
electricity and heat of 160 GWh/year vs.
total needs of 103 GWh/year)
• Annual savings of 40,000 tons of CO2
Klimaschutz – ebswien

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THANK YOU FOR YOUR ATTENTION!
For more information please contact :
Marco Beroš (m.beros@eib.org), phone +352 43 79 827 48
EUROPEAN INVESTMENT BANK
http://www.eib.org/