ᐅ Evaluating the Proposal and Technology of a Photovoltaic System
Created on: 30 Jan 2023 12:00
H
hanghaus2023
Hello,
I am planning to equip my house with a photovoltaic system.
Electricity consumption: 7100 kWh per year
Southwest orientation, roof pitch 45 degrees
Most affordable photovoltaic offer:
23 * modules
Jolywood JW-HD108N-420W (frame: black, backsheet: glass)
- Best price-performance ratio: high nominal power of 420 W per module and an efficiency of 21.51%.
- Linear power warranty for 30 years (minimum 87.4% after this period).
- 25 years product warranty from the manufacturer.
- Half-cut cells: two separate cell areas connected in series reduce shading losses.
- Front and back glass with anti-reflective technology.
23 * modules DC installation including scaffolding
1 * Sungrow SBR096 9.6 kWh
- High-voltage lithium iron phosphate battery with multi-level protection concept and comprehensive safety certifications.
- Up to 30A continuous charge and discharge current with high efficiency and 100% usable energy.
- Plug & Play, no wiring required between individual battery modules.
- Of the total price, €4,476.16 net is allocated to the battery storage.
1 * Sungrow Hybrid SH8.0RT
- Three-phase hybrid inverter for residential use.
- Fast charging/discharging to easily manage consumption peaks.
- High self-consumption through optimized integrated energy management system.
- Remote firmware updates and customizable settings.
- Quick and easy installation, commissioning via smartphone.
1 * AC installation for Sungrow SBR096 9.6 kWh battery with Sungrow inverter(s)
According to the provider, the meter cabinet does not incur any additional costs.
Note:
The cost for the required additional electricity meter is not included in the purchase price. Your local grid operator is responsible for installing this meter and will charge you separately for this service.
Net price: €26,192
The provider is relatively new to the market and has 150 ***** reviews on Google.
Previously, I received offers with lower specifications starting above €50,000.
Is there anything to consider regarding taxes?
Honestly, I have no expertise in this area. Is there an expert here who can technically and financially evaluate the most affordable offer for me?
Thank you very much for your help from
hanghaus2023
I am planning to equip my house with a photovoltaic system.
Electricity consumption: 7100 kWh per year
Southwest orientation, roof pitch 45 degrees
Most affordable photovoltaic offer:
23 * modules
Jolywood JW-HD108N-420W (frame: black, backsheet: glass)
- Best price-performance ratio: high nominal power of 420 W per module and an efficiency of 21.51%.
- Linear power warranty for 30 years (minimum 87.4% after this period).
- 25 years product warranty from the manufacturer.
- Half-cut cells: two separate cell areas connected in series reduce shading losses.
- Front and back glass with anti-reflective technology.
23 * modules DC installation including scaffolding
1 * Sungrow SBR096 9.6 kWh
- High-voltage lithium iron phosphate battery with multi-level protection concept and comprehensive safety certifications.
- Up to 30A continuous charge and discharge current with high efficiency and 100% usable energy.
- Plug & Play, no wiring required between individual battery modules.
- Of the total price, €4,476.16 net is allocated to the battery storage.
1 * Sungrow Hybrid SH8.0RT
- Three-phase hybrid inverter for residential use.
- Fast charging/discharging to easily manage consumption peaks.
- High self-consumption through optimized integrated energy management system.
- Remote firmware updates and customizable settings.
- Quick and easy installation, commissioning via smartphone.
1 * AC installation for Sungrow SBR096 9.6 kWh battery with Sungrow inverter(s)
According to the provider, the meter cabinet does not incur any additional costs.
Note:
The cost for the required additional electricity meter is not included in the purchase price. Your local grid operator is responsible for installing this meter and will charge you separately for this service.
Net price: €26,192
The provider is relatively new to the market and has 150 ***** reviews on Google.
Previously, I received offers with lower specifications starting above €50,000.
Is there anything to consider regarding taxes?
Honestly, I have no expertise in this area. Is there an expert here who can technically and financially evaluate the most affordable offer for me?
Thank you very much for your help from
hanghaus2023
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xMisterDx19 Sep 2023 15:41sysrun80 schrieb:
Again: It’s not about the power going out! It’s about the fact that at certain times it is more expensive! (...) Did you even read what I wrote? It doesn’t seem like it.
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xMisterDx19 Sep 2023 15:43sysrun80 schrieb:
In Norway and Denmark, for example, dynamic electricity tariffs, including for household electricity, are very common and well accepted. I also found an article a few months ago that explains how this supports the power grid and can prevent a massive—and therefore expensive—expansion.
But you already see that the focus tends to be on why something doesn’t work, even when others have already demonstrated it successfully 😎Yes. Just look at the map to see how much coastline Denmark has, versus the land area (and coastline... and mountains, relevant for hydropower) in Sweden, and then compare that with the population size.
It quickly becomes clear that for a relatively densely populated industrial country with 85 million people, they can only be a limited role model.
R
RotorMotor19 Sep 2023 15:45sysrun80 schrieb:
In countries like Norway and Denmark, dynamic electricity tariffs for residential electricity are very common and widely accepted. What share do they actually have?
sysrun80 schrieb:
A few months ago, I also found an article explaining how this helps the power grid and can prevent a massive—and therefore expensive—expansion. Was that from Tibber themselves?
sysrun80 schrieb:
But you can already see that the focus is more on why something doesn’t work—even when others are already demonstrating it successfully 😎 I basically believe that many problems can be solved with technology.
However, home energy storage systems (as they currently operate) and dynamic electricity tariffs (without automation behind them) are certainly not the solution to our problems.
Energy storage systems are toys for the wealthy, and dynamic tariffs are mostly for a small group of enthusiasts.
xMisterDx schrieb:
Did you even read what I wrote? It doesn’t seem like it.Sorry, I’m also working on programming a controller at the same time. I thought you meant complete shutdown.
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xMisterDx19 Sep 2023 15:49sysrun80 schrieb:
Sorry, I’m also programming a controller at the same time. I thought you meant a full shutdown.I’m remote on a system abroad, that’s no excuse 😉
No... a basic supply must always be available. But it shouldn’t be that the cashier sits in candlelight because electricity prices have shot up to 60 cents/kWh, while her neighbor, the CEO, at the same time turns on his sauna and pool heater because he doesn’t care about the 60 cents/kWh at all.
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