Separate meter and electricity tariff for air-to-water heat pump sensible?

I definitely pay an extra rate for the heat pump

It should also be noted that some operators simply "disconnect" the heat pump electricity for 1-2 hours a day. Especially around midday. We therefore have the heat pump with HT/NT at the local supplier, I change households every 2-3 years. In 2009, NT was 9 cents per kWh (net):D

An interesting option for optimizing electricity costs is a spot tariff. The electricity price in Leipzig fluctuates enormously throughout the day. These fluctuations are passed on to the customer. Thus, electricity is quite expensive around 7:00 PM and very cheap at 5:00 AM. With appropriate behavior, a lot can be saved.

Briefly on the topic of photovoltaics and heat pump tariffs: Yes, it is possible. The keyword is cascade measurement, and any solar technician can install it this way (without an additional meter). This allows the photovoltaic electricity to be used for both the household and the heat pump while still being billed separately. It only means half an hour of extra work for the electrician.

BUT: many heat pump tariffs then naturally become less profitable, so one should recalculate beforehand. If it was only barely profitable before, the second meter can be removed. If it was a few hundred euros cheaper per year before (with high consumption and/or very cheap heat pump electricity), then it should be kept.

We also have an air-to-water heat pump and have 2 meters HT and NT ( Haupt-Tarif ) + ( Nacht Tarif ) costs are with provider ..... at 22 cents per kWh. The HT and NT are almost equally expensive, plus a basic fee of about 8 euros per month. We have a house with 120 sqm and about 4000 kWh per year, which is about 75-80 euros per month. Ps. and then we also have a 3rd meter for house electricity, where the electricity price is about 30 cents per kWh and 12 euros per month basic fee ;)

That is exactly the right decision. Look at how much the heat pump consumes in heating mode without a separate tariff/meter. Optimize the heat pump in the 2nd year and by the 3rd year you can calculate based on consumption and experience whether a separate tariff/meter is worthwhile.

I’m just wondering how I can then see how much the heat pump has consumed. I couldn’t find anything about that in the menu.