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 21:27nordanney schrieb:
Not at all. It depends on the heat pump, the heating system design, and you. I simply assumed an annual performance factor of 4, which should definitely be achievable with geothermal energy. If the heating system is well designed, values of 4.5 to 5 are possible.
This means that you generate four kWh of heat from one kWh of electricity. If you manage to get five kWh from one kWh, the effective cost per unit of heat would correspond to an electricity price of 30 cents.
Paying for both, meaning one kWh of electricity for operation plus the heating cost for four or even five kWh of heat, would be nonsense.I’ll show you the pricing structure here in a photo… feel free to share your opinion on it…!! Thanks ☺️N
nordanney26 Feb 2021 22:06Very low operating costs, high one-time expenses, fairly high fixed costs.
Conclusion: In my opinion, average.
The problem is that you commit to a monopoly provider for 10 or more years. There is no competition. Conditions are opaque and hardly directly comparable. Sometimes you pay for electricity separately, sometimes for hot water, sometimes a low initial investment, sometimes you have to buy the heat pump yourself…
Conclusion: In my opinion, average.
The problem is that you commit to a monopoly provider for 10 or more years. There is no competition. Conditions are opaque and hardly directly comparable. Sometimes you pay for electricity separately, sometimes for hot water, sometimes a low initial investment, sometimes you have to buy the heat pump yourself…
D
DaniMartinez26 Feb 2021 22:07T_im_Norden schrieb:
Do you have more detailed information?
This colorful info page doesn’t provide much.
Who supplies the electricity for the heat pump?
Since the price of 5.95 cents probably refers to the heat generated, this means the more efficient the heat pump is, the more your provider earns from it.
By the way, 500 euros per year is roughly what many people with well-insulated homes pay in total energy costs for heating. Here is an overview of the costs... if I understand point 2.2 correctly, the fixed price of 487 euros also includes the electricity for the heat pump, which is why they don’t want me to feed my own solar power from the photovoltaic system into their network...!!!
Is it legal for them to prohibit me from using the electricity generated by my photovoltaic system for the heat pump?!
N
nordanney26 Feb 2021 22:12DaniMartinez schrieb:
Is it legal for them to prohibit me from using the electricity generated by my photovoltaic system for the heat pump?!Yes. Take it or leave it.D
DaniMartinez26 Feb 2021 23:48nordanney schrieb:
Not at all. It depends on the heat pump, the heating system design, and you. I simply assumed an annual performance factor of 4, which should definitely be achievable with geothermal energy. With a well-designed heating system, even 4.5 to 5 is possible.
This calculation means that you generate four kWh of heat from one kWh of electricity. If you even get five kWh from one kWh, the energy cost would correspond to an electricity price of 30 cents.
Paying for both—one kWh of electricity for operation plus the operating costs for four or five kWh of heat—would be nonsense. But is that how it is currently, or how should the contract be understood? Please post the costs again as a photo...
With the current contract, we pay a one-time fee of €17,400, then a base price of €500 (which includes the electricity for the heat pump; under section 2.2 it states ...the costs for operating the heat pump...), and then we also pay for the heat produced by the heat pump using the electricity we have already bought... that is how the contract reads currently, right?
So I am paying for the electricity to operate the heat pump and also for the heat produced with the electricity already purchased, or is there a misunderstanding on my part?
T
T_im_Norden27 Feb 2021 07:34No, you are not mistaken. You pay operating costs, meaning electricity, maintenance, plus heating costs. The operator takes care of maintenance, etc., although I find the wording regarding the base price confusing since it only includes operation, measurement, and billing.
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