ᐅ Is it practical to install a photovoltaic system on the west or east side of a building?
Created on: 5 Jan 2020 18:42
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kaho674
Hello,
we are wondering whether we should install a photovoltaic system on the roof in the near future. The empty conduits for it are already in place. However, we have a hipped roof. On the south side, there is just over 20m² (215 sq ft) available for the system. Would it make sense to also use the west (or east) side to increase the area, even if the sun doesn’t hit it at the optimal angle?
we are wondering whether we should install a photovoltaic system on the roof in the near future. The empty conduits for it are already in place. However, we have a hipped roof. On the south side, there is just over 20m² (215 sq ft) available for the system. Would it make sense to also use the west (or east) side to increase the area, even if the sun doesn’t hit it at the optimal angle?
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boxandroof14 Jan 2020 10:16Bookstar schrieb:
Come on. The DAX averages 14% per year.The return from the roof can be fully financed, and there is still enough cash left for the markets. The return on equity goes through the roof. Try that with your broker.After this discussion, I am now wondering which direction to invest in.
1) Build out as much as possible
2) Design the photovoltaic system according to one’s own needs (aiming for a high level of self-sufficiency as described by @hampshire)
Old versus new business model. I believe we are currently at a crossroads, especially if the federal government does not remove the photovoltaic capacity cap.
@kaho674 – we are currently in an almost identical situation. Bungalow, 28° east-west orientation, and just under 90 square meters (970 square feet) of roof space. I am waiting for three offers. Initial talks with solar installers concluded: no battery storage (this was discouraged). Postal code 067xx (between Leipzig and Halle). Above all, the FAQ from Pflanze initially overwhelmed me as well. I have been reading through it daily for a week now. By the way, my tax advisor is skeptical regarding the economic viability. Once I have the numbers, I will review them with him. Requests for offers are initially based on the “old” model / as much as possible. Looking forward to it...
In any case, a very, very interesting discussion.
1) Build out as much as possible
2) Design the photovoltaic system according to one’s own needs (aiming for a high level of self-sufficiency as described by @hampshire)
Old versus new business model. I believe we are currently at a crossroads, especially if the federal government does not remove the photovoltaic capacity cap.
@kaho674 – we are currently in an almost identical situation. Bungalow, 28° east-west orientation, and just under 90 square meters (970 square feet) of roof space. I am waiting for three offers. Initial talks with solar installers concluded: no battery storage (this was discouraged). Postal code 067xx (between Leipzig and Halle). Above all, the FAQ from Pflanze initially overwhelmed me as well. I have been reading through it daily for a week now. By the way, my tax advisor is skeptical regarding the economic viability. Once I have the numbers, I will review them with him. Requests for offers are initially based on the “old” model / as much as possible. Looking forward to it...
In any case, a very, very interesting discussion.
Bookstar schrieb:
Come on. The DAX yields an average of 14% per year over such a period. You might as well pack up your panels on that shed, which will later be hazardous waste.
Photovoltaics aren't profitable enough. It's fine that there are enthusiasts and people who think the technology is cool. But from a return perspective, it doesn’t pay off. You do realize that you are comparing risky stocks with a relatively secure photovoltaic system here? Stocks that can be sold in case of emergency versus a photovoltaic system, whose investment can't just easily be converted back into cash? Apples and oranges...
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boxandroof14 Jan 2020 10:29ntsa86 schrieb:
After this discussion, I am now wondering in which direction to invest.
1) Build out as much as possible (recommendation from the Photovoltaic Forum and as @Specki implemented)
2) Design the photovoltaic system based on personal demand (aiming for a high degree of self-sufficiency as described by @hampshire) Your degree of self-sufficiency is not a metric that holds economic significance for you or ecological significance for the community.
As of today, the larger system makes more sense. You earn more money and displace electricity from non-renewable sources. Your share of self-consumption is also higher with a larger system.
If in the future large systems become less profitable due to reduced subsidies and/or sufficient electricity from renewable sources is available, the calculations will have to be done differently.
Our photovoltaic system is currently being installed. The response from all suppliers contacted was: "We are happy to sell you a battery storage system; it’s a great deal for us, but unfortunately not for you."
A photovoltaic system is practically always cost-effective except if you pay 2000+ euros per kWp. Our setup now has 9.6 kWp completely finished and ready at just under 12,500 euros gross. The estimated annual yield is over 10,000 kWh with an ideal southwest orientation. The entire project is financed discreetly at less than 1%.
A photovoltaic system is practically always cost-effective except if you pay 2000+ euros per kWp. Our setup now has 9.6 kWp completely finished and ready at just under 12,500 euros gross. The estimated annual yield is over 10,000 kWh with an ideal southwest orientation. The entire project is financed discreetly at less than 1%.
halmi schrieb:
The whole thing subtly financed for less than 1%.Where/how, if you don't mind me asking?Similar topics