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This document presents the results of the activities carried out within WP4 of the LIFE22-CET-SET_HEAT Project, tasks 4.1 (Environmental impact assessment) and 4.5 (Legal, environmental and socio-economic risk assessment).
The report evaluates national legislation in Poland, Croatia, Romania, and Lithuania, identifies key barriers and regulatory gaps, and formulates policy recommendations aimed at accelerating the decarbonisation of the district heating sector.
The SET_HEAT project is entering its final phase, focusing on the preparation of investment-ready transition plans for 15 district heating systems in Poland, Croatia, Lithuania and Romania. The consortium is now translating its findings into concrete investment plans that outline viable pathways for the decarbonisation and modernisation of district heating networks.
The central goal of this report is to deliver a thorough evaluation of the strategic market analysis and market landscape in which the SET_HEAT model investment projects will be executed.
This Environmental Impact Assessment Report presents a comprehensive life cycle assessment of district heating decarbonization projects across four Eastern European countries under the SET_HEAT initiative.
The zip file contains 8 presentations of design modules planned for replication within the SET_HEAT project. The presentations are in pptx format.
Raport z warsztatów: Dekarbonizacja miejskiego systemu ciepłowniczego w Opolu we współpracy z interesariuszami zewnętrznymi. Opole, 13–14 stycznia 2026 r. Miejsce: Siedziba ECO SA w Opolu
This pre-feasibility study examines the potential for recovering waste heat from a supermarket refrigeration system and integrating it into a district heating (DH) network.
This document presents the results of the activities carried out within WP3 of the LIFE22-CET-SET_HEAT Project, tasks 3.1, 3.2, 3.3 and 3.4. All activities in those tasks resulted in sensitive deliverables, which are summarised in the report.
The prefeasibility work covers two complementary sub-projects. Rooftop‑based solar district heating integration in existing district heating systems in Bucharest, Romania and a centralized solar thermal plant combined with thermal storage and auxiliary systems in Zaprešić, Croatia.
The SET-HEAT project webinar titled: ‘Current Actions for Decarbonisation of Croatian District Heating’ was held on 5 December 2025 on the MS Teams platform. It can be still watched on YouTube platform: https://youtu.be/xN0BfWLy53c
The SET_HEAT_CHP project concerns the deployment of an integrated hybrid heat‑recovery and heat‑pump system. The intervention targets low‑temperature (LT) and medium‑temperature (MT) waste‑heat streams originating from gas‑engine cogeneration units and couples them with high‑efficiency industrial heat pumps to increase the usable share of renewable and waste‑heat sources in district heat supply.
The document presents the technical pre-feasibility study for integrating air source heat pumps (ASHPs) and a 3,000 m³ thermal storage tank into the Naujoji Vilnia district heating (DH) system in Vilnius, Lithuania. The project supports the LIFE22-CET-SET_HEAT initiative aimed at accelerating energy transition and decarbonisation of district heating systems.
The SET_HEAT_LAKE project aims to demonstrate a viable pathway toward decarbonisation of Bucharest’s centralised district heating system by replacing fossil‑fuel-based heat generation with renewable heat derived from Lake Morii through a large-scale lake-water-source heat pump system.
The study explores the integration of a wastewater-source heat recovery system into the district heating network (DHN) of Opole, Poland. It demonstrates how municipal wastewater infrastructure can be coupled with district heating to create a circular, low-emission, and energy-efficient urban energy system.
The SET_HEAT_PTES pre-feasibility study initially examines the technical, environmental, legal, and economic viability of integrating a large-scale Pit Thermal Energy Storage (PTES) system into the district heating (DH) network of Opole.
The SET_HEAT_RIVER Project aims to decarbonise Zagreb’s district heating system by introducing a 21 MW water-to-water heat pump system that uses the Sava River as a renewable heat source.
The SET_HEAT project has closed its second year of implementation and is now fully rolled out.
Nuotolinis SET_HEAT projekto vaizdo seminaras 2025 m. spalio 2 d. (ketvirtadienis) „Centralizuoto šilumos tiekimo sektoriaus dekarbonizavimas“
The SET_HEAT Project organised special session titled “Energy Transition and Decarbonisation in the District Heating Sector” was part of the #SESAAU2025 11th International Conference on Smart Energy Systems.
Co-funded by the European Union. Views and opinions expressed are however those of the author(s) only and do not necessarily reflect those of the European Union or CINEA. Neither the European Union nor the granting authority can be held responsible for them.