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HEAT 35

Project overview

Transforming district heating systems of Central Europe into sustainable and efficient heating and cooling systems by 2035

Many district heating systems in central Europe still rely heavily on fossil fuels. New approaches utilize various heat sources but are complex to implement. The HEAT 35 project supports eight regions and cities in the transition process to run their district heating systems on 50% of renewables and waste heat by 2035. The partners involve district heating operators and experts to design new solutions. They also prepare guidelines and tools for the operators to implement these solutions, supported by a quality management system that helps to ensure that emission standards are respected.

2,05m €

Project Budget

80%

of the Budget is funded by ERDF

Layer 1

7

Countries

8

Regions

10

Partners

2

Pilots

Duration

Start date

End date

Project progress

24%

Project partnership

Project partners

Hrvatska (HR)

Lead partner

Energy institute Hrvoje Požar

Department for Energy Efficiency
Address
Savska cesta 163
10000 Zagreb
Country
Croatia (HR)
Web
https://eihp.hr

Project partner

Address
DR. FRANJE TUĐMANA 23
32000 Vukovar
Country
Croatia (HR)
Web
www.tehnostan-vukovar.hr
Total partner budget
173,600 €
Cities and Networks
Address
Feldgasse 19
8200 Gleisdorf
Country
Austria (AT)
Web
http://www.aee-intec.at
Total partner budget
287,000 €
Address
U Porcelánky 1052
35735 Chodov
Country
Czechia (CZ)
Web
https://www.teplochodov.cz
Total partner budget
119,700 €
Energy- and District Strategies
Address
Mainzerhofstraße 10
99084 Erfurt
Country
Germany (DE)
Web
www.thega.de
Total partner budget
217,000 €
Department of Innovation
Address
ul. Aleja Pokoju 81
31-564 KRAKÓW
Country
Poland (PL)
Web
https://mpec.krakow.pl
Total partner budget
194,600 €
Address
Čučkova ulica 5
2250 Ptuj
Country
Slovenia (SI)
Web
www.ezavod.si
Total partner budget
225,300 €
Economic Development and Transition Office
Address
Titov trg 1
3320 Velenje
Country
Slovenia (SI)
Web
www.velenje.si
Total partner budget
170,154 €
Address
Via Santa Lucia 19
33013 Gemona del Friuli
Country
Italy (IT)
Web
www.ape.fvg.it
Total partner budget
243,600 €
Address
Piazza Italia 18
33085 Maniago
Country
Italy (IT)
Web
www.maniago.it
Total partner budget
172,017 €

Roadmap

1

Background information

Central Europe has high demands for heating and cooling with a well-developed district heating (DH) supply model, high dependency on fossil fuels, and similar potential regarding the integration of low-temperature renewable energy sources (RES) or waste heat into the DH grids. District heating (DH) systems in Central Europe are highly dependent on fossil fuels and are mostly using old technologies. Since heating and cooling accounts for around 50% of final energy consumption in Europe, there is a need for a deep transition, including significant improvement in energy efficiency.

2

Challenge

DH systems are facing big challenges deriving from their dependency on Russian gas and longer-term demands for their efficiency set by Revised Energy Efficiency Directive. The complexity of integrating multiple heat sources like geothermal, biomass, and waste heat presents technical and operational challenges. Additionally, the region's reliance on Russian gas has caused vulnerabilities, urging a shift to more sustainable, decentralized energy sources. A new generation of DH systems is on its way, integrating many different heat sources, making them far more complex and decentralised.

3

Solutions in place

Until now, different specific solutions have been developed in the form of tools and assessments like heat maps, waste heat maps, assessments of different energy potentials, etc. Projects like CE-HEAT and ENTRAIN have already produced tools such as a waste heat viability calculator and quality standards for biomass plants. However, a comprehensive approach is still missing to take DH systems through a tailored process of activities and supporting tools.

4

Goal

Our goal is to answer the challenges that DH systems are facing by involving them in the process of becoming sustainable and efficient systems using waste heat and renewable energy sources. The main objective is for DH systems to use at least 50% renewable energy or waste heat as an energy source by 2035. The project aims to co-design transformation solutions for involved DH systems, improve energy efficiency, and reduce emissions, ultimately positioning DH systems at the core of community climate transformation efforts.

5

Our solution

Project partners will co-design transformation solutions for DH systems involved in the project - Tehnostan Vukovar (HR), Municipality of Velenje (SI), Heating Chodov (CZ), Cracow District Heating Company (PL), and Municipality of Maniago (IT). The solutions will then be adopted by governing bodies of DH systems and expert partners. HEAT 35 will offer a comprehensive approach through the HEAT 35 Kit, which includes guidelines, tools, and a quality management system to help DH operators integrate RES and waste heat into their systems. The project will also establish a Learning Lab to build the capacity of operators to manage more complex and decentralized DH networks. By uniting Central European partners and promoting knowledge transfer, HEAT 35 aims to deliver sustainable transformation solutions that can be replicated across the region.

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HEAT 35

The project lead partner is responsible for the content of this project website.

Project Contacts

Project Manager

Ilja Drmač
Phone: +385995326279

Finance Manager

Amra Sarunović
Phone: +385995326107

Communication Manager

Jasmina Trstenjak
Phone: +385995326155