ᐅ Electricity Connection Registration with Provider – Assistance with Technical Data

Hello dear forum members,

unfortunately, more than 10 inquiries with local electricians have been unsuccessful. The issue concerns applying for the house connection and temporary construction power (including rental and installation). I received 2 offers but then no further feedback. Therefore, I have now filled out the application myself. I need help with the technical data; maybe someone here is familiar with this.

A single-family house is being built on an existing plot, but there is no existing connection on the property, so no connection box or similar. The overhead line runs underground at the neighbor’s property about 1 meter (3 feet) from the boundary line. The single-family house is 160 square meters (1722 square feet), has an air-to-water heat pump with 8 kW, no basement, and is a KfW55 energy-standard house. Our building consultant gave me an application form from another single-family house to use the data, but only for the construction power and house connection. I tried to fill out the heat pump section myself in the form. Is this okay so far? Would you install a separate meter for the heat pump? I would run it through the normal meter. Photovoltaics are only planned for the future, but the panels will be installed in 2-3 years, hopefully when prices become more reasonable again.

Hello, basically every provider has a service center. Regarding your question about a separate meter for the heat pump: definitely! There are subsidized electricity tariffs for heat pumps. We even have a peak/off-peak meter. I am not sure if it is legally required.

Yes, I had already read about the special tariffs, but the heat pump can be turned off by the utility provider at any time, which is why it is cheaper. However, with photovoltaic systems, it apparently does not make sense, since the heat pump runs on solar power during the day. The second meter also incurs a basic fee/charge. The question is whether it is worth it if you might only save around 50€ per year, considering the provider could shut it off at any time. The future situation is still somewhat uncertain. I don’t really expect much help from the service center either. They will probably just give general responses like “ask your electrician, we don’t know the local situation,” and so on.

No one can say for sure how the situation with a second meter will develop in the future. In general, though, I think your idea is a good one. In the coming years, there will be significant changes to our power grid, and personally, I prefer not to have my system simply switched off. This is also not beneficial for the efficient and durable operation of an inverter heat pump.

First, call your utility provider regarding the application. If that doesn’t help, contact the company building your house or the person responsible for the construction power or your electrical system.

With photovoltaic systems and heat pumps (including special tariffs), meter concept 8 is normally used, involving two or even three meters. There is quite a bit of information about this available online.

HilfeHilfe schrieb:

However, regarding your question about a separate meter for the heat pump: absolutely!

This statement is at least debatable nowadays. It definitely depends on the region and the energy provider whether they even offer specific tariffs for this. And if they do, these usually are not worthwhile at all! In the best-case scenario, considering all fixed charges and fees, and the relatively low electricity consumption of the heat pump in a new build, you end up at around break-even by the end of the year. In some cases, you might also need to choose a larger distribution board for the second meter, which definitely argues against having a second meter in this case.