District heating

The district heating supply area can be viewed in the map portal of the city of Jena (--> Links --> District heating supply areas - Jena map portal).

Emission-free heating systems

For properties whose hot water or heating energy requirements, or both, are to be covered in part or in full by emission-free systems, an exemption from the obligation to connect and use is granted to the extent that the hot water and/or heating energy requirements are replaced by the aforementioned types of supply. Heating systems in which solid, liquid or gaseous fuels such as coal, coke, wood, crude oil, natural gas or propane are used are not considered emission-free.Emission-freeheating systems include, for example, solar thermal, geothermal or heat recovery systems.

Combined heat and power (CHP) + renewable energies

Properties with a heat requirement of at least 5 MW can be completely exempted from the obligation to connect and use heat if the entire heat requirement is covered by a combination of heat generation system(s) based on renewable energies and CHP system(s) operated with gaseous fuels. The heat quantity share of the heat generation system(s) based on renewable energies must cover at least 30 % of the total heat demand per year.

Combined heat and power generation

Properties with a heat requirement of at least 5 MW can be fully or partially exempted from the obligation to connect and use heat. The prerequisite for this is that the heat requirement can be covered in full or in part by CHP plant(s) operated with gaseous fuels. In addition, the CO2 emission factor of these CHP plant(s) may only correspond to a maximum of the CO2 emission factor of district heating generation in Jena. The applicant must prove compliance with this specified CO2 emission factor as part of the application for exemption from the obligation to connect and use.

Serious reasons

Exemption from the obligation to connect and use is granted as long as and to the extent that the connection of the property to the district heating supply system cannot reasonably be expected for serious reasons, particularly in consideration of the requirements of the public good. Exemption is granted if it can be credibly demonstrated by submitting appropriate documentation that the retrofitting of an existing system would jeopardize the economic existence of the property.

Properties with a single-family house (detached or semi-detached) or a detached two-family house as well as refugee accommodation in non-stationary structures (e.g. containers) are exempt from the connection and use obligation.

Yes, the installation and operation of emission-free heat generation systems in addition to a heat consumption system supplied with district heating is possible. In accordance with § 7 Para. 2, an exemption from the obligation to connect and use is granted on application to the extent that the hot water and/or heating energy requirement is replaced by the emission-free heat generation system.

The application for exemption must be submitted in writing by the property owner.

To apply for an exemption, a corresponding form is available in the city's service portal under Downloads.