ᐅ Heat pump and household electricity combined on a single meter
Created on: 8 Jun 2023 12:11
G
GePrest
Hello,
I am having a heat pump with a capacity of 5.46 kWh installed soon and have some questions regarding the electrical installation. Yesterday, the electrician who works with the builder was on site. According to the electrician, Netze-bw applies lockout periods, even though I have only one meter for the heat pump, the photovoltaic system, and household electricity. A new meter was installed on 04.05.23 by Netze-bw due to the new photovoltaic system. Using a separate meter for the heat pump electricity is not an option. Does anyone have experience with Netze-bw and the required meter installation for heat pumps and photovoltaic systems? I want to run everything through a single meter. Do I need to register the heat pump with Netze-bw?
Regards
I am having a heat pump with a capacity of 5.46 kWh installed soon and have some questions regarding the electrical installation. Yesterday, the electrician who works with the builder was on site. According to the electrician, Netze-bw applies lockout periods, even though I have only one meter for the heat pump, the photovoltaic system, and household electricity. A new meter was installed on 04.05.23 by Netze-bw due to the new photovoltaic system. Using a separate meter for the heat pump electricity is not an option. Does anyone have experience with Netze-bw and the required meter installation for heat pumps and photovoltaic systems? I want to run everything through a single meter. Do I need to register the heat pump with Netze-bw?
Regards
X
xMisterDx11 Jun 2023 23:50Radfahrer schrieb:
Anyone who recalculates will arrive at a much higher amount, but I no longer remember the difference from all the years and have calculated very conservatively, including other control cabinets, etc.
Otherwise, the savings would be 5,000 €.5,000 € (about 5,400 USD) savings over 19 years. With an additional cost of 10,000 € (about 10,800 USD) compared to a gas heating system...
Any questions?
R
Radfahrer12 Jun 2023 04:22The heating system cost €14,500 all-inclusive, including installation and everything else.
There is no fireplace, no boiler room—only 0.9m² (about 10 sq ft) of space for the hot water tank.
No gas connection, no chimney sweep, and it is maintenance-free.
The €5,000 refers to an additional heat pump meter.
So, there’s no point in discussing the total costs because just building a boiler room with a fireplace would have more than offset the extra cost compared to gas heating.
There is no fireplace, no boiler room—only 0.9m² (about 10 sq ft) of space for the hot water tank.
No gas connection, no chimney sweep, and it is maintenance-free.
The €5,000 refers to an additional heat pump meter.
So, there’s no point in discussing the total costs because just building a boiler room with a fireplace would have more than offset the extra cost compared to gas heating.
W
WilderSueden12 Jun 2023 08:54Radfahrer schrieb:
With a photovoltaic system, there is no way to save electricity for household use and heat pump power. Has your electrician ever heard of cascade wiring?
I am currently removing the second meter. Good rates for household and heating electricity differ by only 1-2 cents. Even if the difference were larger, I would need 1500-2000 kWh for the second meter. In a modern, moderately sized house without a daily sauna in the living room, you roughly break even at best. If heating power is ever charged at industrial electricity prices, I might consider installing a second meter again 😉
We deliberately decided not to install a second meter for the pump during the renovation of our house.
1. The second meter incurs an annual fee of €130.
2. There are three daily blackout periods when the power supply is cut off. If you happen to have a long shower marathon in winter, it will be freezing. And nothing is worse than a cold woman.
3. The difference compared to regular electricity is 3 cents per kWh.
1. The second meter incurs an annual fee of €130.
2. There are three daily blackout periods when the power supply is cut off. If you happen to have a long shower marathon in winter, it will be freezing. And nothing is worse than a cold woman.
3. The difference compared to regular electricity is 3 cents per kWh.
Before I could make any calculations or considerations, the decision was taken away from me because my electricity provider at the time didn’t offer a separate heat pump tariff. Now I have changed providers twice already and, to be honest, I’m not sure if the new one would offer it.
R
Radfahrer12 Jun 2023 10:43You always keep learning.
Cascade switching, never heard of it before.
Thanks for the tip.
At the comparison portal, I currently only find a difference of 2 cents.
My main energy provider increased household electricity from €0.30 to €0.43 at the beginning of the year, and heat pump electricity from €0.22 to €0.30.
I have canceled both contracts, but I can only exit the heat pump contract in November.
With a difference of €0.02, a second meter definitely isn’t worth it. It seems there are significant regional differences after all.
Cascade switching, never heard of it before.
Thanks for the tip.
At the comparison portal, I currently only find a difference of 2 cents.
My main energy provider increased household electricity from €0.30 to €0.43 at the beginning of the year, and heat pump electricity from €0.22 to €0.30.
I have canceled both contracts, but I can only exit the heat pump contract in November.
With a difference of €0.02, a second meter definitely isn’t worth it. It seems there are significant regional differences after all.
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