Hello,
Today I found out that two electricity meters are planned to be installed in our new single-family house:
One for general household electricity and
one for heating electricity for the heat pump.
Our electrician wants to install the latter because he believes that heating electricity is cheaper than electricity for other consumption.
Unfortunately, there is no cheaper heating electricity available in our town, and I want to keep my existing electricity contract with EON, which I signed at Media Markt with a rate of 30 cents/kWh, and use it in the new house to bill both household and heating electricity.
According to EON, I can only bill one meter with this contract.
Within the next five years, a photovoltaic system is planned to be installed. At that time, I will definitely need a second meter.
Therefore, my question is:
Is it better to have only one meter installed now to cover current needs?
Or should the second meter be installed right away for the future photovoltaic system, even if it remains unused for the first few years?
For such an unused second meter, is there only an annual meter rental fee of about 20 euros, or am I required to have a separate electricity contract for that meter with a corresponding fixed monthly fee?
Unfortunately, I received many different answers to these questions today.
Today I found out that two electricity meters are planned to be installed in our new single-family house:
One for general household electricity and
one for heating electricity for the heat pump.
Our electrician wants to install the latter because he believes that heating electricity is cheaper than electricity for other consumption.
Unfortunately, there is no cheaper heating electricity available in our town, and I want to keep my existing electricity contract with EON, which I signed at Media Markt with a rate of 30 cents/kWh, and use it in the new house to bill both household and heating electricity.
According to EON, I can only bill one meter with this contract.
Within the next five years, a photovoltaic system is planned to be installed. At that time, I will definitely need a second meter.
Therefore, my question is:
Is it better to have only one meter installed now to cover current needs?
Or should the second meter be installed right away for the future photovoltaic system, even if it remains unused for the first few years?
For such an unused second meter, is there only an annual meter rental fee of about 20 euros, or am I required to have a separate electricity contract for that meter with a corresponding fixed monthly fee?
Unfortunately, I received many different answers to these questions today.
S
SaniererNRW12310 Oct 2022 23:03Sandra.M85 schrieb:
Unfortunately, there is no cheap heating electricity available in our town. Then you don’t need a special heating electricity contract or a second meter. Which usually isn’t worth it anyway.
Sandra.M85 schrieb:
I want to transfer my EON electricity contract, which I signed at Media Markt with a price of 30 cents/kWh, to the new house and use it for both household and heating electricity billing. Then go ahead. That’s a good price.
Sandra.M85 schrieb:
A photovoltaic system is planned to be installed within the next 5 years. At that point, I will need a second meter anyway. No – others have said the same. You just need a bidirectional meter, and that’s all.
Sandra.M85 schrieb:
So my question is:
Is it better to install only one meter for the current needs?
Or should the second meter for the future photovoltaic system be installed now, even though it will be unused for the first few years?
For such an unused second meter, is it just the 20 euro meter rental fee per year, or am I required to sign a separate electricity contract for that meter which would then involve a monthly basic charge? As above — no second meter necessary.
P.S. Our basic supplier offers heating electricity with a 1 cent discount during peak hours and a 6 cent discount at off-peak times, but it comes with an annual base fee of 170€. It’s not worth it.
W
WilhelmRo11 Oct 2022 07:49WilderSueden schrieb:
Our expectation is 700-800 kWh heating electricity Really?
Quote:
"An average electricity consumption for heat pumps is between 27 and 42 kWh per square meter of living space. This means for a house with 160 square meters (1722 square feet) of living space an average electricity consumption of about 4320 kWh to 6720 kWh."
We need 10,500 kWh for 3 people including heating, hot water, and electricity.
180 square meters (1938 square feet) * 35 kWh = 6300 kWh
3 people electricity = 3500 kWh
Hot water = ?
That seems about right.
KingJulien11 Oct 2022 08:04I also find a figure below 1000 kWh very low, even with a ground-source heat pump and KfW40 standard. On the other hand, over 6000 kWh just for heating in the new build would be far too high!
W
WilderSueden11 Oct 2022 09:44WilhelmRo schrieb:
Really?
Quote:
"An average electricity consumption for heat pumps ranges between 27 and 42 kWh per square meter of living space. This means for a house with 160 sqm (1722 sq ft) of living space an average electricity consumption of about 4320 kWh to 6720 kWh."
We need 10,500 kWh for 3 people including heating, hot water, and electricity.
180 sqm (1938 sq ft) * 35 kWh = 6300 kWh
Electricity for 3 people = 3500 kWh
Hot water = ?
Seems about right.Average values are just averages, but my house is not 😉 We are building EH 40+ standard, corresponding to 25 kWh/sqm (2.3 kWh/sq ft). We also have 50 sqm (538 sq ft) less than you, which results in an estimated heating demand of 3250 kWh per year. A brine-to-water heat pump should rather achieve a COP of 5 than 4, which would mean around 650-800 kWh. Hot water is added on top, which is likely mostly covered by photovoltaics during the summer months (and probably also during transitional seasons). I think it’s quite reasonable to assume that even including hot water, our heat pump’s electricity consumption will remain well below 1000 kWh.
I have ignored household electricity here since it is measured separately by the regular meter. We will certainly be far from 3500 kWh; that would be almost a fourfold increase of our current consumption. Even though an apartment needs less than a house, not that much more for a household of three people.
S
Sandra.M8511 Oct 2022 16:29SaniererNRW123 schrieb:
Then you don’t need a heating electricity contract and therefore no second meter either. Which, by the way, often/usually isn’t worth it anyway.
Then do it like that. That’s a good price.
Nope – others have said the same. A bidirectional meter, and that’s it.
See above ==> no second meter needed
P.S. Our main supplier offers heating electricity with a 1-cent (U.S. penny) discount during peak hours and a 6-cent (U.S. penny) discount during off-peak hours. The annual basic fee is then 170€ (about 170 USD). It doesn’t pay off. Great, that answers all my open questions! Thanks!
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