ᐅ Additional meter for heating electricity tariff: yes or no?
Created on: 23 Oct 2023 13:08
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Dachshund90
Hello everyone,
I would like to hear your opinions on the above-mentioned question, as two electricians have different views.
Conditions:
- Ground source heat pump 8 kW with cooling function for summer
- Photovoltaic system SE+NW 16.38 kWp
- New single-family house with 193 m² (2,076 sq ft) living area
We now want to determine the size of the distribution board. Of course, it is also crucial to know how many meters I will need and how much space should be reserved for them.
One option is to go with 3+1 meters to be ready for everything. However, there is a price difference depending on whether you can leave out two meter slots and have only 1+1 in the panel.
Additional costs come from meter rental fees and usually the higher basic charges, which reduce the savings from the cheaper heating electricity tariff. If I roughly calculate this, you would need to consume quite a lot of electricity (single-family house > 6000 kWh) to benefit significantly from the lower tariff. Does anyone have a clear example calculation?
The questions are:
1. Is the heating electricity tariff generally worthwhile, and from what consumption level? If it’s currently not worth it, should space still be reserved? Who knows how the difference between tariffs will develop.
2. Can the electricity generated by the photovoltaic system be used both for self-consumption within the house (household appliances, etc.) and for the heat pump?
Thank you for your assessments. I am happy to answer any questions.
Good luck
I would like to hear your opinions on the above-mentioned question, as two electricians have different views.
Conditions:
- Ground source heat pump 8 kW with cooling function for summer
- Photovoltaic system SE+NW 16.38 kWp
- New single-family house with 193 m² (2,076 sq ft) living area
We now want to determine the size of the distribution board. Of course, it is also crucial to know how many meters I will need and how much space should be reserved for them.
One option is to go with 3+1 meters to be ready for everything. However, there is a price difference depending on whether you can leave out two meter slots and have only 1+1 in the panel.
Additional costs come from meter rental fees and usually the higher basic charges, which reduce the savings from the cheaper heating electricity tariff. If I roughly calculate this, you would need to consume quite a lot of electricity (single-family house > 6000 kWh) to benefit significantly from the lower tariff. Does anyone have a clear example calculation?
The questions are:
1. Is the heating electricity tariff generally worthwhile, and from what consumption level? If it’s currently not worth it, should space still be reserved? Who knows how the difference between tariffs will develop.
2. Can the electricity generated by the photovoltaic system be used both for self-consumption within the house (household appliances, etc.) and for the heat pump?
Thank you for your assessments. I am happy to answer any questions.
Good luck
W
WilderSueden24 Oct 2023 08:38xMisterDx schrieb:
And even with this lower electricity price of 25 cents/kWh, it takes decades for it to be cost-effective compared to natural gas at 10 cents/kWh :pWith an annual performance factor (seasonal coefficient of performance) of 2.5 during operation, you are actually cheaper. In fact, even a bit better, since about 10% of the energy from gas is lost through the chimney. The 2.5 value can even be reached in many uninsulated older buildings, as a large part of the heating season falls into the transitional periods.D
Dachshund9024 Oct 2023 10:06Maybe we could swing back from the gas meter to the electrical distribution board? 😉
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WilderSueden24 Oct 2023 10:41Thought this topic was settled? A second meter only makes sense if your utility company gives away the heat power for free. For whatever reason 😉
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Dachshund9024 Oct 2023 11:35WilderSueden schrieb:
I thought this topic was settled? A second meter only makes sense if your utility company gives away thermal energy for free. For whatever reason 😉Oh, I just wasn’t sure whether I should reserve the "space" in the meter cabinet for the future or not.D
DaGoodness24 Oct 2023 11:46Having space is better than needing space.
And who knows what the future may bring.
And who knows what the future may bring.
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NatureSys24 Oct 2023 12:42DaGoodness schrieb:
Having space is better than needing space.
And who knows what the future might bring. I can only agree with that. Maybe someday for a separate meter for an electric car, if that is specifically supported...
In that respect, a slightly larger distribution board is always a good idea.
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