Participants

Fraunhofer Institute for Solar Energy Systems ISE, Marek Miara (Operating Agent)

Fraunhofer Institute for Energy Economics and Energy System Technology IEE, Dietrich Schmidt

EDFDF – Research & Development, Odile Cauret

Objectives

The annex 62 will have the task to further develop the results from the annex 50. The significant effort to create the data base and to find case studies from (so far) five countries should not be terminated with the end of the Annex 50. This is in particular in the light of the fact that several countries are currently in the process of completing new cases.

Following objectives from the Annex 50 should be continued:

  • Extension of the case studies database (current situation: about 20 examples described).
  • Extension of the “matrix tool”, especially further description of each general concept with the aim of finding and establishing standard solutions
  • Implementation (for example in form of an app) and extension of the tool “solution finder” with the aim of creating an easy-to-use pre-planning tool, allowing for a quick recognition of possible heat pump solutions for specific cases

Following new or not yet sufficiently addressed topics should be covered by the new
Annex:

Heat sources.

  • The main implementation problem of heat pumps in high-density cities can potentially be the connection to a heat source. There is a need to identify a robust and proofed solution helping the wide application of heat pumps.

Standardized solutions.

  • Standardized solutions are necessary to allow implementation of heat pumps on a large scale. The international Annex work should help to identify and establish these solutions. To increase future acceptance, all subject typically involved in the deciding, planning and execution
    process, should be included (such as housing companies).

Quarters solutions.

  • For cities it is meaningful to search solutions for whole quarters or for groups of buildings. Taking into account the future energy system (dominant renewable sources, electrification, balancing of fluctuation in the energy grid, etc) this type of solutions will become increasingly purposeful and necessary.

Cooling.

  • Heating and cooling needs are not being separated, geographically (countries holding the two needs throughout the year), as well as momently (when both needs appear simultaneously). Therefore, finding solutions including cooling needs should constitute a part of the new Annex work.

Central vs. decentral solutions.

  •  There are various solutions for heat source itself (single heat source vs. cold district heating). Furthermore, solutions can also vary when applied from a broader perspective – central district (local) heating solutions using the new or existing heat distribution network powered by a heat pump, versus decentral single solutions for each building. For the further development of heat pumps in cities, clear description and exhaustive comparison of applicable solutions has a crucial meaning

Urban heat and cold island.

  • The extensive use of heat pumps for heating purposes (concentrated use of several heat pumps on small area) can result in a local cold island. Particularly in the case of extensive use of a ground through boreholes, the issue of the heat-regeneration of the ground will be an important aspect.

Extending the range of participating countries.

  • There is a strong will and at the same time a necessity to involve also the non-European countries in the future. It is essential to draw from good practices in countries having more experience with highdense or “mega” cities, such as Asiatic, as well as Nord American countries.

Participants

Germany

Fraunhofer Institute for Solar Energy Systems ISE, Marek Miara (Operating Agent)

Fraunhofer Institute for Energy Economics and Energy System Technology IEE,          Dietrich Schmidt

France 

EDF – Research & Development, Odile Cauret

Tasks

Task 1 – Market overview, barriers for application, system classification

  • Among others, these are the questions Task 1 is instructed to answer: How is the marked structured and who are its players? What systems are available and how are they regulated? This tasked is also charged with verifying classification by practical professionals. Furthermore, the Task will enable a communication channel for direct feedback on this very website.

Task 2 – Standardization of solutions

  • Task 2 will develop a typology of buildings’ types and local limitations and sort them into an application matrix. It will propose solutions to foreseeable problems and identify further research and development needs based on previous activities.

Task 3 – Specific technology issues

  • Task 3 will look into different types of heat sources, namely aerial sources, ground sources and those that are not yet broadly in use (like waste heat or sewage canals). Other areas of this Task include heat pumps for higher supply temperatures, hybrid systems, building cooling, and solutions for neighborhoods

Task 4 – Demonstration and monitoring

  • Task 4’s main objective is to interpret collect and interpret the results of the field tests and case studies. When finished, the Task is supposed to have assembled the most extensive and leading data base for application of heat pumps worldwide.

Task 5 – Dissemination and communication

  • Task 5 will communicate the results as well as the final report to a broad audience and further develop the website. It will host workshops for target groups such as installers and planners.