Hello Rafaelsen,
for a coherent overall concept, there are still some points to consider that you should include in your considerations. Since there is still some time left for the final decision, here are some remarks:
- The economic efficiency of a combined heat and power plant strongly depends on what happens to the generated electrical energy. The larger the share that must be fed into the distribution network, the worse the economic efficiency. Therefore, the question is how your electrical consumption is distributed over time (keyword base load). There are quite a few approaches that make it possible to better correlate the generation and consumption of energy and thus achieve better self-consumption (keyword: Smart Home).
- The zeolite heat pump mentioned in the thread represents a technology concept that has not yet been established in mass application, but due to the increasing tightening of energy standards both on the legal side (Energy Saving Ordinance) and on the funding side (KfW and local programs), new possibilities arise to use the energy carrier NATURAL GAS (keyword primary energy factor, efficiency). If you rely on natural gas, then check the current prices for a gas heat pump. At the same time, inquire about corresponding reference projects from SHK craftsmen. On the pages of the Sanitary Heating Air Conditioning (SHK) trade associations, it is possible to narrow down the search for craftsmen by CHP and renewable energy.
- How many people will live in the house, how many might be added over time?
- What is your current heat consumption, is there a separate meter for the hot water? This way one could try to characterize the consumption behavior a bit.
Best regards, Erik