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Installing 3850Wp Amorphous PV Panels Vertically on Shaded Wall: Winter Yield & Economic Viability

Jack3030 5583 12
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Treść została przetłumaczona polish » english Zobacz oryginalną wersję tematu
  • #1 16337555
    Jack3030
    Level 15  
    On a normal winter day, what yield will 3850Wp amorphous panels placed vertically on a mostly shaded building wall give? I know that amorphous panels are more pros and cons.
    Are stains and dirt visible on the vertical panels?

    I am asking for an objective assessment of the economic sense of installing amorphous panels on the vertical western wall.
    For three years, the main source of heating a house with the annual demand for CO 30MWh has been PC P / W, and the peak source is the DS 25kW boiler. Last winter has slightly verified the possibilities of my PV system with PC P / W appetite in an expensive tariff, significantly increasing the operating costs, and since I had some wood and coal residues, I was cleaning them up in the DS boiler :) This year, I was supposed to insulate only two niches by the balconies (thermal bridges at the windows), but the thermal imaging of the side wall suggests its insulation.
    Installing 3850Wp Amorphous PV Panels Vertically on Shaded Wall: Winter Yield & Economic Viability
    With my current heating costs, expenses related to insulation will never pay off, I am more interested in the comfort effect (no chilled ceilings, no need to support the PC with the DS boiler) and finishing than the electric energy gain.

    Can the GS-50 amorphous panels be mounted vertically at all - taking into account their performance and technical considerations?
    Is there any sense in this mounting on a wall facing west and obscured by a neighboring house 6 meters away?
    I have a tall and moderately energy-consuming house, its side wall is about 8.6 meters wide, 9 meters high, and the highest point is 11.5 meters high.
    I am thinking of insulating this wall: the cost with the material will come out about 10-11 thousand. .

    I wonder if it is worth putting the insulation on my own, seal it up with mortar, paint it with paint and put amorphous panels on it. I will do all / most of the work myself (installation of double-threaded screws, mounting strips, sticking polystyrene on PU foam, placing an adhesive layer on polystyrene + some ground).
    Costs:
    the highest part made by the company is about 2 - 3 thousand. PLN and depends on the area
    cost of the fastening system 3.6 thousand PLN
    inverter and cables 2.3 thousand PLN
    77 panels 3,000 PLN + transport
    polystyrene foam mortar approx. 3 thousand. PLN
    in total 14-15 thousand PLN + transport of panels and some fun. [/ align]
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  • #2 16337767
    Anonymous
    Level 1  
  • #3 16337817
    Jack3030
    Level 15  
    Erbit wrote:


    Sorry, with this approach, mount the panels on this wall and you don't even have to connect them. The rest of the questions became irrelevant.

    And more seriously.

    If I understand you correctly - you do not have a facade and you are considering panels instead.

    I would do the facade. Since the facade is a good idea to put insulation underneath it. So when asked what to spend 11k on the facade or on the panels, I say: on the facade.

    ps a big difference between a facade with insulation and a facade without insulation?

    I have an elevation but no insulation.
    I can make the 15-20 cm styro insulation myself (i.e. not very evenly) and cover it with PV panels, it will be about 2,000. more expensive than anything made by the company.
    For this inverter and cables, the whole will cost 4-5 thousand. more than outsourcing everything to the company.

    So, does it make sense to play with self-insulation with a PV facade, adding about 4-5 thousand. ? What maximum power can I get in winter? 400W?

    The question that bothers me the most is whether PV panels mounted horizontally on a mounting rail laid on a vertical wall will not crack due to the wind or under their own weight? A friend scared me that vertical panels will not clean up in rain and dirty streaks will be visible.
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  • #4 16337939
    Leon444
    Level 26  
    Your friend scared you well, because even on the roof they don't clean very well and at least last year I washed the panels on the roof (they have been on it for three years), so that on the facade I do not expect a nice view after a few years ...
  • Helpful post
    #5 16343686
    byCris
    Level 12  
    I have 4 thin-layer frameless panels mounted vertically on the balcony (vertically, side by side) for 2 years and they are cleaner than the roof ones set at 15 and 35 degrees.

    very positive visual effect.
  • #6 16344469
    Jack3030
    Level 15  
    Thanks to byCris, as the panels placed vertically on the balcony lasted 2 years without any damage, they should be able to do well on the wall. He is more and more convinced to make himself a glass wall.
    The only thing that puzzles me is whether it makes sense to spend money on an inverter or add a heater to the tank and connect the panels directly. I have a stainless steel heater, the only question is welding the muffle to the tank.
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  • #7 16344484
    Tech132
    Level 28  
    How many pieces are you going to mount on this wall?
  • #8 16344501
    Jack3030
    Level 15  
    They will be installed horizontally, 7 pcs and 11 full rows + 12 rows as long as it will fit, on the remaining wall area, gray or dark gray textured plaster.
    So about 80 pcs.
    The panels will have direct sunlight for 2 hours at an angle of 90-60 degrees, during the remaining hours only diffused light.
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  • #9 16344535
    Leon444
    Level 26  
    Okay, and I have a question from a different barrel, I also had two amofric panels mounted vertically on the wall and after the summer, when the sun warmed up, one of the panels slipped out of the hooks and hung only on the wires, maybe because I gave the fixings as on the panels on the roof on the sides ...
    How are you going to give fixings, or how do you get? On the sides or top and bottom, or maybe all sides?
  • #10 16344551
    Anonymous
    Level 1  
  • #11 16344558
    Jack3030
    Level 15  
    I plan to provide vertical mounting strips and two clamps at the bottom and two at the top, which is why I keep wondering if the outer panel will crack under its weight and temperature. If you do not look at it vertically, there will be 11 of them, and the tightened clamps should not move on the mounting strip.

    Added after 2 [minutes]:

    Erbit wrote:
    Jack3030 wrote:
    ...
    So about 80 pcs.


    A lot. What power do you plan PV?


    Insulation is the priority, so GS-50 will be used, so 80 x 50W
  • #12 16345788
    gaz4
    Level 34  
    Vertical installation makes sense when we want to use direct solar radiation in winter. Only then, because with a cloudy sky they will give half the power compared to those mounted horizontally. So using the entire western wall lined with PV to heat the house does not make any sense, it would be otherwise if it was the south wall. One of my colleagues writing in the thread about the construction of the collector for PLN 1,500 installed his structure vertically and praised himself very much - it has good performance in the fall and spring, and the water does not overheat in summer. And if you already apply such a "glass wall" to something (Żeromski would not even dream of such a hi-end :) ) it is only for water heating. The GS50 can be bought very cheaply (I got mine for about 1.5 PLN / W) so even with this setting the return on investment would be at a reasonable level (probably less than 15 years). An inverter is a big cost, it is not profitable to invest in the case of a half-hearted PV.

    The power obtained on a sunny day is easy to calculate. We multiply solar radiation by the sine of the angle of incidence. The sine of 30 degrees is 0.5, i.e. with the PV mounted vertically when the Sun is in front of the panels 60 degrees above the horizon (the angle of incidence on the vertical PV is 30 degrees), half of the available power will be obtained (i.e. when the rays fall on the PV perpendicularly).
  • #13 16368522
    Jan_Werbinski
    Level 33  
    Leon444 wrote:
    Okay, and I have a question from a different barrel, I also had two amofric panels mounted vertically on the wall and after the summer when the sun was warming one of the panels slipped out of the hooks and hung only on the wires, maybe because of the power

    According to all the instructions I read, vertical installation requires additional fixings on the bottom edge of the panel.

Topic summary

The discussion revolves around the installation of 3850Wp amorphous photovoltaic (PV) panels vertically on a shaded western wall, focusing on winter yield and economic viability. Users express concerns about the expected energy output during winter, with estimates suggesting a maximum yield of around 400W under limited sunlight conditions. The conversation highlights the importance of insulation, with suggestions to prioritize facade insulation over panel installation. Concerns about the visibility of dirt and stains on vertical panels are addressed, with mixed experiences shared regarding cleanliness. The structural integrity of the panels is discussed, emphasizing the need for proper fixings to prevent damage from wind or weight. The economic aspect of investing in inverters versus direct connections to heating systems is also debated, with recommendations for cost-effective solutions.
Summary generated by the language model.
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