Note: you need to log in to download the resources listed on this page.
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 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.
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_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 public event of the workshop brought together specialists from Romania, Denmark, Lithuania, Croatia and Poland, together with local authorities and thermal energy experts. A collective effort between district heating companies, local administration and citizens is essential to achieve the emission reduction and energy efficiency objectives, which was attended by representatives of the Ministry of Public Works, Development and Administration, the Ministry of Investments and European Projects, the Bucharest City Hall, Electrocentrale București S.A., the Bucharest-Ilfov Intercommunity Thermal Energy Development Association, as well as European experts in the field of thermal energy.
This report summarises the results of the SET_HEAT project’s activities on the identification of available low-grade heat sources in four cities targeted by the project.
This report summarises the activities of the SET_HEAT project consortium dedicated to stakeholder engagement. Within the first 9 months of the project, those activities were mainly focused on changing the mindset of the district heating companies directly involved in the project and stakeholder identification.
This SET_HEAT project report is a sourcing guide for district heating companies working on the energy transition and decarbonisation roadmaps and planning investment projects.
This SET_HEAT project's report addresses opportunities for district heating development with a point of departure in the literature and the prospects seen by district heating companies in the four SET_HEAT countries – Poland, Lithuania, Romania and Croatia.
This report summarises the results of the SET_HEAT project’s activities on the identification of key needs and challenges related to the uptake of low-grade heat into the existing high-temperature DH networks. It also includes an updated identification of critical barriers and obstacles. The results make the basis for further project activities in forthcoming work packages, such as specific studies, dedicated audits, etc. This report can also be used to trigger relevant coordination with external stakeholders. In particular, it provides information that may be useful for municipalities and policymakers. Although the analysis was tailored for retrofitting of DH systems run by the consortium partners ECO, ECO, VST, TEB, HEP and specific to the regions covered by the project in many aspects it applies to other fossil-fuel-fired DH systems in Europe.
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.