Hello everyone,
I hope you can help me. In our development area, there will be a cold local heating network, where the energy provider supplies the heat pump in the house through deep drilling and a connected ring main network.
We have been considering integrating a photovoltaic system to use the self-generated electricity to power the heat pump. So far, so good! Today we received a letter from the energy provider stating that, for billing reasons, it is not possible to use the self-generated electricity for the heat pump.
Here is the original wording:
“As you have correctly understood, for billing reasons it is not feasible to register self-generated electricity from a photovoltaic system. By feeding it into the system through us, there would additionally be the disadvantage that the full Renewable Energy Act surcharge would apply to all electricity, so the benefit of self-generated electricity would no longer be fully realized.”
Has anyone heard of something similar? Is it really not possible?
If that is the case, a photovoltaic system almost doesn’t make sense anymore. The contract conditions do not state anywhere that self-generated electricity cannot be used for the heat pump.
Thank you very much in advance!
I hope you can help me. In our development area, there will be a cold local heating network, where the energy provider supplies the heat pump in the house through deep drilling and a connected ring main network.
We have been considering integrating a photovoltaic system to use the self-generated electricity to power the heat pump. So far, so good! Today we received a letter from the energy provider stating that, for billing reasons, it is not possible to use the self-generated electricity for the heat pump.
Here is the original wording:
“As you have correctly understood, for billing reasons it is not feasible to register self-generated electricity from a photovoltaic system. By feeding it into the system through us, there would additionally be the disadvantage that the full Renewable Energy Act surcharge would apply to all electricity, so the benefit of self-generated electricity would no longer be fully realized.”
Has anyone heard of something similar? Is it really not possible?
If that is the case, a photovoltaic system almost doesn’t make sense anymore. The contract conditions do not state anywhere that self-generated electricity cannot be used for the heat pump.
Thank you very much in advance!
[QUOTE][/QUOTE]
D
DaniMartinez26 Feb 2021 09:52nordanney schrieb:
Not at all. It depends on the heat pump, the heating system design, and your situation. I simply assumed an annual performance factor (COP) of 4, which should definitely be achievable with geothermal energy. If the heating system is well designed, 4.5 to 5 is possible.
This means that from one kWh of electricity, you generate four kWh of heat. If you actually get five kWh from one kWh of electricity, the cost per unit of heat would be equivalent to an electricity price of 30 cents.
Paying for both one kWh of electricity to operate the system and for the work involved in producing four or even five kWh of heat would be unreasonable. So does this mean that it is actually a pretty good venture, or not so good after all?
T
T_im_Norden26 Feb 2021 10:07Do you have more detailed information on this?
This colorful info page doesn’t provide much.
Who supplies the electricity for the heat pump?
Since the price of 5.95 cents (ct) likely refers to the heat produced, this creates a situation where the more efficient the heat pump operates, the more your provider earns from it.
By the way, 500 euros per year is roughly what many people with well-insulated houses pay in total for their heating energy consumption.
This colorful info page doesn’t provide much.
Who supplies the electricity for the heat pump?
Since the price of 5.95 cents (ct) likely refers to the heat produced, this creates a situation where the more efficient the heat pump operates, the more your provider earns from it.
By the way, 500 euros per year is roughly what many people with well-insulated houses pay in total for their heating energy consumption.
N
nordanney26 Feb 2021 10:07Plot of land: I don’t think it’s bad at all. For a reasonable price, you get a deep geothermal borehole plus a heat pump. The underfloor heating in the house then won’t cost a fortune.
The labor cost isn’t great, and the annual maintenance fees are also quite steep.
Overall (assuming no additional costs come up), it’s a solid and fairly balanced offer. You also avoid the risks of the heat pump breaking down.
The labor cost isn’t great, and the annual maintenance fees are also quite steep.
Overall (assuming no additional costs come up), it’s a solid and fairly balanced offer. You also avoid the risks of the heat pump breaking down.
D
DaniMartinez26 Feb 2021 10:45T_im_Norden schrieb:
Do you have more detailed information on this?
This colorful info page doesn’t provide much.
Who supplies the electricity for the heat pump?
Since the price of 5.95 ct likely refers to the heat generated, the situation arises where the more efficient the heat pump operates, the more the provider profits from it.
By the way, 500 euros per year is about what many households with well-insulated homes pay for their total heating consumption. The electricity is supplied by the energy provider itself, and we then pay the surcharge for the heat produced by the heat pump! I can take a photo of a detailed breakdown later!
DaniMartinez schrieb:
Hello everyone,
I hope you can help me. In our building area, there will be a cold district heating network where the energy provider supplies the heat pump in the house through deep drilling and a connected ring main network.
We were considering integrating a photovoltaic system to supply the heat pump with self-generated electricity. So far, so good! Today we received a letter from the energy provider stating that, for billing reasons, it is not possible to use the self-generated electricity to operate the heat pump.
Here is the original wording:
“As you have correctly noted, for billing reasons, it is not feasible to register self-generated electricity from a photovoltaic system. By feeding electricity into our system, there would be the additional disadvantage that the full Renewable Energy Act surcharge would apply to all electricity consumed, so the benefit of self-generated electricity would not be fully realized.”
Has anyone heard of something like this before? Is it really not possible?
If that’s the case, a photovoltaic system almost becomes pointless. And nowhere in the contract terms does it state that self-generated electricity cannot be used for the heat pump.
Thanks in advance!Does your property purchase agreement require connection to the district heating network? If not, you can ignore the provider and install an air-to-water heat pump plus photovoltaic system yourself. 🙂 No, I’m not guessing, I was just wrong. Opening it up, the details on the flyer don’t match the project I’m referring to. That seems to be quite popular at the moment, but it’s no problem.
Prices for comparison, rounded:
Construction costs: €11,100 for up to 5.5 kW plus €600 for cooling
Calculation for a single-family house with 9.3 MWh/year and 5.5 kW:
Basic fee €119
Capacity charge €319
Energy charge €920
Cooling €100
= €1,450 per year
= €120 per month
Prices for comparison, rounded:
Construction costs: €11,100 for up to 5.5 kW plus €600 for cooling
Calculation for a single-family house with 9.3 MWh/year and 5.5 kW:
Basic fee €119
Capacity charge €319
Energy charge €920
Cooling €100
= €1,450 per year
= €120 per month
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