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?
H
hausbauer5 Jan 2020 19:51Honestly, do you want to do something good for the environment and earn a few cents, or do you want to burn a lot of money? Depending on your intention, the answer regarding a storage system will be no or yes. Except if you are building to KfW 40+ standards.
You can already introduce your project there, even if it is still very vague. The advice is very valuable early on. This way, you can start off in the right direction. And please send my regards to the plant and the green pirate.
You can already introduce your project there, even if it is still very vague. The advice is very valuable early on. This way, you can start off in the right direction. And please send my regards to the plant and the green pirate.
H
hausbauer5 Jan 2020 19:54The only meaningful and financially viable use of a storage system is operating a green plantation, so you cannot be tracked by a high electricity bill. If that is the case, then good luck.
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boxandroof5 Jan 2020 19:56You could keep your husband busy by having him map out the roof surfaces and fit as many standard modules measuring 170x100cm (67x39 inches) as possible.
I only have west and east orientations.
I filled all available space as much as it made sense for me, considering shading from chimneys. In total, I ended up with 24.48 kWp.
Most people look at me strangely and are surprised because the system is so large. Usually, installations are only done up to a maximum of 10 kWp. But my system will generate about 18,000 (currency) over the next 20 years without investing an extra cent. (Completely calculated after taxes.) Everything is financed. And from the very first year, it has a positive cash flow. I just have to pay the value-added tax upfront for a short time until I get it refunded by the tax office.
So, it definitely makes sense!
And as soon as possible!
The feed-in tariff decreases every month. So go full throttle, don’t waste another day and therefore no money.
Sometimes it takes up to 4 months before they can install the system for you because they are fully booked. But in reality, the process only takes a few days.
I regret not having installed the photovoltaic system when I built the house 4 years ago. Then the profit would have been significantly higher.
I got 5 offers and finally chose the one who already installed the 5th system for my neighbor. So, a recommendation.
Oh, and talk your husband out of getting a battery storage. It’s not worthwhile financially or environmentally.
Regards
Specki
I filled all available space as much as it made sense for me, considering shading from chimneys. In total, I ended up with 24.48 kWp.
Most people look at me strangely and are surprised because the system is so large. Usually, installations are only done up to a maximum of 10 kWp. But my system will generate about 18,000 (currency) over the next 20 years without investing an extra cent. (Completely calculated after taxes.) Everything is financed. And from the very first year, it has a positive cash flow. I just have to pay the value-added tax upfront for a short time until I get it refunded by the tax office.
So, it definitely makes sense!
And as soon as possible!
The feed-in tariff decreases every month. So go full throttle, don’t waste another day and therefore no money.
Sometimes it takes up to 4 months before they can install the system for you because they are fully booked. But in reality, the process only takes a few days.
I regret not having installed the photovoltaic system when I built the house 4 years ago. Then the profit would have been significantly higher.
I got 5 offers and finally chose the one who already installed the 5th system for my neighbor. So, a recommendation.
Oh, and talk your husband out of getting a battery storage. It’s not worthwhile financially or environmentally.
Regards
Specki
B
boxandroof5 Jan 2020 20:14kaho674 schrieb:
We would then have about 60m² (645 ft²) available Systems between 10 kWp and around 13 kWp are not cost-effective due to the Renewable Energy Act. Maybe with expensive modules and optimal positioning, you can exceed 13 kWp. You have to look into it and calculate. Possibly it will remain "only" 10 kWp. Maybe there is a garage, carport, or similar available. That’s why you should sketch out and share all the available areas.
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