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HERMES - Holistic Energy Renovation Management & Engagement Support

HERMES establishes a comprehensive One-Stop-Shop model for residential energy renovation in Greece, guiding property owners from initial consultation through to full project completion. 

EU Funding: €1,498,473

Program: LIFE CET OSS 

OSS Hubs: 3 cities

GAP-101295124

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Europe's building stock accounts for approximately 40% of total energy consumption and 36% of CO₂ emissions. In Greece, the annual renovation rate remains low (~1%) due to fragmented services, bureaucratic complexity, financing barriers and lack of coordinated support for property owners. Around 71% of Greek homes were built before 1980, with inadequate thermal insulation and outdated equipment. HERMES addresses this structural gap by establishing a fully integrated OSS model — aligned with the EPBD Recast and the European Green Deal.

Project Objectives:

  • Three fully operational OSS hubs in the pilot cities

  • Integrated digital ecosystem for service management, information and stakeholder coordination

  • Full support for energy and non-energy renovations including seismic reinforcement

  • Personalized financial advisory services through strategic partnership with Piraeus Bank

  • Streamlined licensing procedures in cooperation with partner municipalities

  • Network of 100+ certified engineers, auditors and contractors (Pool of Experts)

Policy Value:

Image by Sergio Martins

HERMES transforms renovation from a fragmented, bureaucratic process into a structured, transparent investment pathway — with the citizen at the center. Leveraging competitively secured EU funding and mobilizing public, private and financial stakeholders, the project reduces structural barriers while accelerating renovation rates, climate resilience and social inclusion."

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  • Scalable and replicable OSS model for Southern Europe

  • Direct reach to thousands of households through POMIDA and municipal registries

  • Expansion across three EU Mission Cities through CLIMANET

  • Creation of a coordinated public-private ecosystem for long-term renovation acceleration

BENEFITS FOR CITIZENS & PROPERTY OWNERS:

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  • Single, reliable point of contact for the entire renovation process

  • Simplified access to financing and subsidies

  • Reduced administrative burden and licensing delays

  • Certified engineers and contractors for quality assurance

  • Focus on vulnerable households

  • Integration of heatwave resilience and climate adaptation measures

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BENEFITS FOR MUNICIPALITIES:

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  • Acceleration of local renovation rates

  • Improved energy performance of residential stock

  • Reduction of urban heat island effect

  • Strengthening of local economic activity through SMEs

  • Alignment with national and European energy transition commitments

  • Integration of OSS into local climate neutrality strategies

Image by Jessica Hearn

3

Trikala

Climate Zone C

22.047 Residential Buildings 

2

Kalamata

Climate Zone A

20,188 Residential Buildings 

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1

Athens

Climate Zone B 

50,211 Residential Buildings 

PILOT CITIES — OSS HUBS:

PROJECT CONSORTIUM:

SDA — Coordinator

UIPI — Union of Property Owners

POMIDA — Panhellenic Federation of Property Owners

Piraeus Bank

PEDMEDE — Hellenic Association of Mechanical & Electrical Contractors

Sustainable City — Municipality of Kalamata

e-Trikala S.A.

Municipality of Athens

Municipality of Trikala

Municipality of Kalamata

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