ᐅ Which provider do you use for electricity specifically for your heat pump?

Hello everyone,

we have started operating our ground source heat pump (with horizontal ground collectors). The brine pipes are not yet connected. At the moment, we are heating the screed on the lower floor with the electric heating element. Afterwards, the upper floor will be heated.

Question: Is it really necessary to heat both floors separately because the heating element can no longer keep up?

It is a Viessmann Vitocal 200-G.

Another question: We have a separate meter for the heat pump. I understand that I can choose a different electricity provider for the heat pump and for household electricity. Which provider have you chosen for your heat pump electricity? Have you experienced any issues with that?

Thanks and best regards

Hello,
I recently gave this some thought as well (even though we are just about to start construction): In our case, the heat pump electricity tariff is only 1 cent / 4 cents (peak, off-peak) cheaper than the regular electricity rate. The additional fixed cost of 7.20 EUR per month for the heat pump tariff is not really worth it. Also, I would like to integrate a small photovoltaic system (1.5–2 kWp) to support self-consumption. This is not really practical with two separate electricity tariffs either. ==> Therefore, it is more economical to run the heat pump on the household electricity tariff.

HAL06120 schrieb:
Hello,
a small photovoltaic system (1.5–2 kWp) to support self-consumption

If you are smart enough to remove the second meter (rightfully so), then recalculate how much sense 2 kWp really makes... Fill your roof up to a maximum of 10 kWp. This has a positive effect on the cost per kWp and the system essentially pays for itself (minus business risk). Because whether you pay the electricity supplier or the "solar bank" makes no difference.

toxicmolotow schrieb:
If you’re smart enough to justifiably dismiss the second meter, then recalculate how much sense 2kWp actually makes...

I have 😉 Feeding electricity back into the grid is no longer really profitable, so it’s only for self-consumption now. What good is my system if I generate more than I can use? I might be able to cover some peaks better, but I would also often produce too much. Increasing the kWp only makes sense if you have a battery storage, which itself is still unprofitable. In addition, a small system is exempt from Renewable Energy Act fees and reporting requirements, so it doesn’t require a separate meter or anything like that.

I would like to install the panels on the carport — it won’t accommodate more than the specified 1.5–2kW anyway. Connection and installation costs would also remain low.

For a 2kW system, I expect costs around 2,000€ (approximately 2,000 USD). Upgrading later is always an option once the technology (especially storage or electricity prices) advances 2–3 generations further.

If I’ve made any major mistakes somewhere — please let me know 😉

Well, up to 10 kWp, the Renewable Energy Act doesn’t really concern you, and even at 2 kWp you need to notify the grid operator (not register) about the system. And I can imagine that a different meter will be required.

In winter, your system won’t provide you with any benefit at all. A larger system pays for itself to some extent, and the fixed costs (meter and insurance) are probably the same.

I agree with you economically that a storage system doesn’t make sense.

I also don’t believe that 2 kWp can be realized for 2,000 euros. Or does that include any self-performed work?