Hello everyone,
what is your assessment of photovoltaic and/or solar systems purely from an economic perspective?
Without going into details.
Single-family house, 199 sqm (2,145 sq ft); 2 adults / 2 children; gas condensing boiler with underfloor heating;
I know it always depends on the individual case, but I would like to hear your opinions based on the points mentioned above and from those who have experience with the additional costs of such systems.
Thanks in advance.
Best regards
what is your assessment of photovoltaic and/or solar systems purely from an economic perspective?
Without going into details.
Single-family house, 199 sqm (2,145 sq ft); 2 adults / 2 children; gas condensing boiler with underfloor heating;
I know it always depends on the individual case, but I would like to hear your opinions based on the points mentioned above and from those who have experience with the additional costs of such systems.
Thanks in advance.
Best regards
Häuslebau3r20 Oct 2015 08:27Hmm.. I personally find the topic of photovoltaic systems and batteries quite interesting. Of course, only from the perspective of actually saving money or if it is economically viable. I don’t buy them just for the “green conscience”... I work too hard for my money.
I found another post on this topic. Maybe it can stay in the discussion.
I will definitely continue to follow this here.
__________________________________________________________________________
I had to remove the link according to the terms and conditions.
Anyone interested in the article can search using the keywords "Powerwall" and "Wirtschaftswoche."
Best regards,
Musketier
I found another post on this topic. Maybe it can stay in the discussion.
I will definitely continue to follow this here.
__________________________________________________________________________
I had to remove the link according to the terms and conditions.
Anyone interested in the article can search using the keywords "Powerwall" and "Wirtschaftswoche."
Best regards,
Musketier
interesting article @Häuslebau3r
I keep coming back to this topic from time to time, but for now, only out of interest.
As I mentioned before, the available capital is still needed elsewhere (outdoor area).
Also – as briefly mentioned in the articles – other manufacturers (Daimler or a BMW subsidiary) are now entering the market, which could potentially affect prices again.
Time will tell, battery will come.
I keep coming back to this topic from time to time, but for now, only out of interest.
As I mentioned before, the available capital is still needed elsewhere (outdoor area).
Also – as briefly mentioned in the articles – other manufacturers (Daimler or a BMW subsidiary) are now entering the market, which could potentially affect prices again.
Time will tell, battery will come.
Häuslebau3r20 Oct 2015 16:52Yes, of course you hope that this might give the market a bit of a boost (and that prices will stabilize as a result). Since I still have some time until it’s finally my turn (almost 2 years), I naturally hope that there will be some developments by then. Of course, the wheel won’t be reinvented... but who really knows.
I’m really curious, like a cat on a hot tin roof.
I’m really curious, like a cat on a hot tin roof.
A brief addition, as some users occasionally mention wanting or planning to use the electricity they generate to support their heating and present rather “interesting” calculations.
The heating system is naturally used during the cold season. This period is often characterized by heavily overcast skies and short days. The impact of such weather conditions on production should not be underestimated.
We have an approximately 5.3 kWp system with a south/southeast orientation on the roof. During peak times, the system produced between 34-38 kW.
Last week—the current weather is probably familiar—made me repeatedly want to bite my desk. Over the past five days (November 13-17), we produced a total of about 8.7 kWh. This includes a single peak of 4.5 kW. Otherwise, daily production ranged between 1-1.5 kW. Yesterday, the system hit a new low with only 0.75 kW.
As expected, this does not even come close to covering one’s own electricity needs. Correspondingly, it certainly cannot meet the electricity demand of the heat pump. In autumn and winter, electricity production often falls far short of self-consumption needs. In summer, on the other hand, when the heat pump is mostly needed just for hot water, there is generally a surplus.
Currently, the self-consumption rate is impressively between 60-100%.
The heating system is naturally used during the cold season. This period is often characterized by heavily overcast skies and short days. The impact of such weather conditions on production should not be underestimated.
We have an approximately 5.3 kWp system with a south/southeast orientation on the roof. During peak times, the system produced between 34-38 kW.
Last week—the current weather is probably familiar—made me repeatedly want to bite my desk. Over the past five days (November 13-17), we produced a total of about 8.7 kWh. This includes a single peak of 4.5 kW. Otherwise, daily production ranged between 1-1.5 kW. Yesterday, the system hit a new low with only 0.75 kW.
As expected, this does not even come close to covering one’s own electricity needs. Correspondingly, it certainly cannot meet the electricity demand of the heat pump. In autumn and winter, electricity production often falls far short of self-consumption needs. In summer, on the other hand, when the heat pump is mostly needed just for hot water, there is generally a surplus.
Currently, the self-consumption rate is impressively between 60-100%.
Häuslebau3r19 Nov 2015 07:23Isn't it currently the case that the electricity drawn from the grid to operate the heat pump is still subsidized or cheaper? Although this could ultimately change the calculation somewhat?
N
nordanney19 Nov 2015 07:28Häuslebau3r schrieb:
Isn’t it currently the case that the electricity used from the grid to operate the heat pump is subsidized or cheaper? Although that could change the calculation a bit in the end? There are special heat pump electricity tariffs (offered by some providers). However, you have to install and have a separate meter read (which also involves additional costs).
We decided against it because it didn’t make financial sense.
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