We have a question regarding the Energy Saving Ordinance 2009 and solar energy. According to two of the potential builders, the current Energy Saving Ordinance 2009 can be met without solar panels, provided that the primary energy consumption is 15% below the requirements of the Energy Saving Ordinance 2009. This was also offered to us! What is your opinion on this? Is this just a cost-saving measure for the builder, or is it genuinely reasonable?
Thank you for your opinions
Klüsic
Thank you for your opinions
Klüsic
Hello,
Here is a good basic rule: Never sign anything you do not understand, especially when it concerns your finances!
I definitely cannot quantify this, as I lack all the initial data! It would have to be calculated. However, the results in private households are often rather sobering.
Best regards
haeuslebauer schrieb:
.. Yes, I was shown the calculations, but since I/we are complete laypersons.... well, you can imagine the rest!
Here is a good basic rule: Never sign anything you do not understand, especially when it concerns your finances!
haeuslebauer schrieb:
.. What savings can be expected for about 160 m² (1,722 sq ft) of living space? When does the solar system pay for itself?
I definitely cannot quantify this, as I lack all the initial data! It would have to be calculated. However, the results in private households are often rather sobering.
Best regards
Hello,
General statements are often misleading! A better phrasing would be: usually not! It always depends on the specific conditions of the building and individual circumstances.
That is not quite accurate. At best, this applies to existing buildings. In new constructions, depending on the design, the percentage shifts more towards hot water preparation! This varies with every project, especially since occupant behavior has a significant impact! In passive houses, heating energy demand plays a rather minor role.
Best regards.
6Richtige schrieb:
..a solar system just for hot water hardly ever pays off,
General statements are often misleading! A better phrasing would be: usually not! It always depends on the specific conditions of the building and individual circumstances.
haeuslebauer schrieb:
.. , 80% is used for heating.
That is not quite accurate. At best, this applies to existing buildings. In new constructions, depending on the design, the percentage shifts more towards hot water preparation! This varies with every project, especially since occupant behavior has a significant impact! In passive houses, heating energy demand plays a rather minor role.
Best regards.
haeuslebauer28 Apr 2010 08:46Calculation
Hello everyone,
hello 6Richtige,
that was exactly the calculation basis used by the heating engineer. In the end, it does not really matter whether the savings amount to 80 or 90 euros per year. Thanks for that, 6Richtige!
However, it is clear that this lack of cost-effectiveness is required in order to comply with the 2009 Energy Saving Ordinance. Honestly, it’s an outrageous situation that is even supported by a corresponding loan from the KFW bank.
Since I already have proof of compliance with the Energy Saving Ordinance, I will only commission the preparation for a future photovoltaic system. If I have extra money in the coming years, I will reconsider the option of solar or photovoltaic then.
Hello everyone,
hello 6Richtige,
that was exactly the calculation basis used by the heating engineer. In the end, it does not really matter whether the savings amount to 80 or 90 euros per year. Thanks for that, 6Richtige!
However, it is clear that this lack of cost-effectiveness is required in order to comply with the 2009 Energy Saving Ordinance. Honestly, it’s an outrageous situation that is even supported by a corresponding loan from the KFW bank.
Since I already have proof of compliance with the Energy Saving Ordinance, I will only commission the preparation for a future photovoltaic system. If I have extra money in the coming years, I will reconsider the option of solar or photovoltaic then.
Hello,
The Energy Saving Ordinance, KfW, and MAP primarily aim to reduce primary energy demand. Whether this is economical for the homeowner in every case is a completely different matter! However, the legislator has left the homeowner and especially their planners all options open through § 25 of the Energy Saving Ordinance and § 9 of the EEWG. The fact that these are not used is due to incompetence, inability, or unwillingness!
The requirements of the KfW exceed those of the Energy Saving Ordinance! KfW and MAP are merely temporary solutions that only partially cover the homeowner’s burden! Anyone who believes that generous gifts are handed out is living on another planet. 😉
Best regards
haeuslebauer schrieb:
However, it is clear that this inefficiency is necessary to comply with the Energy Saving Ordinance 2009. Honestly, an outrageous situation, which is even supported by the KfW Bank through a related loan.
The Energy Saving Ordinance, KfW, and MAP primarily aim to reduce primary energy demand. Whether this is economical for the homeowner in every case is a completely different matter! However, the legislator has left the homeowner and especially their planners all options open through § 25 of the Energy Saving Ordinance and § 9 of the EEWG. The fact that these are not used is due to incompetence, inability, or unwillingness!
The requirements of the KfW exceed those of the Energy Saving Ordinance! KfW and MAP are merely temporary solutions that only partially cover the homeowner’s burden! Anyone who believes that generous gifts are handed out is living on another planet. 😉
Best regards
@Haeuslebauer
My experience is also in the range of 80 to 130 euros, even though the calculations often show higher values. Practice is not the same as theory; mistakes are quite common during both planning and execution.
Therefore, I find the figures given by the heating contractor to be fair.
My experience is also in the range of 80 to 130 euros, even though the calculations often show higher values. Practice is not the same as theory; mistakes are quite common during both planning and execution.
Therefore, I find the figures given by the heating contractor to be fair.
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