The sector model of private households (SoPHa) can be described as a stock-and-flow model that simulates the change (flow) in sector states (stock) for the period from 2020 to 2050. Figure 1 shows a schematic overview of the stock-and-flow character of the model. The initial state of the household sector defines the starting point of the simulation. Based on this, the changes in the sector states can be simulated in year-by-year simulations, taking into account sector-inherent cause-effect relationships and limitations.
The overall objective of SoPHa is to determine the costs, emissions, and load profiles of the sector for given implementation levels of CO2 reduction measures. On this basis, the feedback effects of the measures on the energy system can be described. A dynamic assessment of these measures can be performed in combination with the supply sector models (ISAaR and MINGA). The model’s focus is on the provision of space heating and hot water demand due to the high shares of emissions.
Figure 2 shows the four modules of SoPHa or their main tasks and results. The modules can be divided both thematically (top: buildings, bottom: heating systems) and temporally (left: annually, right: hourly). The development of the building stock and the simulation of the useful energy load curves are prerequisites for developing the plant stock and the use of the heating systems.
SoPHa was developed and used for the first time in the Dynamis project to quantify the repercussions of the private household sector on the supply sector depending on the implementation of measures. The model is one of four “final energy” sector models.
- Modelling Load Profiles of Heat Pumps, Artikel in der Energies – Special Issue Energy Efficiency in Plants and Buildings Volume 12 Issue 4, 02.2019
- Modelling the private households sector and the impact on the energy system, Paper und Vortrag auf der 41st International Conference der International Association for Energy Economics (IAEE), 06.2018.
- Vergleich der Emissionen von WP- & Solarthermiesystemen, Paper und Poster auf dem Symposium thermische Solarenergie, 05.2017.
- Anwendungsorientierte Emissionsbilanz, Artikel in der Fachzeitschrift BWK, 03.2017
- Wärmepumpe versus Solarthermie, BWK, Ausgabe 06/2016