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
R
RotorMotor19 Sep 2023 21:08sysrun80 schrieb:
The rest is being obstructed.
That's clear. But that's not the point here 🙂Who is being obstructed and what exactly are you referring to?@kati1337 Do you know where these huge amounts of energy are going in your case?
And how is bathing related to electricity consumption? Do you only have tankless water heaters?
RotorMotor schrieb:
Who is disadvantaged and what exactly is your point? This is what I’m concerned about:
kati1337 schrieb:
We have a PTH measurement concept, where charging or discharging the storage system from the grid is not allowed. Since we feed excess energy into the grid, it must be ensured that no electricity from non-renewable energy sources is fed into the grid. It’s difficult to prevent this, so it’s easier not to do it at all.
RotorMotor schrieb:
@kati1337 do you know where these huge amounts of energy go in your case?
And how is bathing related to electricity consumption? Do you only have tankless water heaters? After a full bath, the heat pump usually starts reheating the hot water.
We don’t want to change that either.
Otherwise, we have a lot of equipment that consumes energy. Computers running for home office, even in the evening. Heat pump for hot water, air conditioning, household appliances, cooking, baking... the usual.
People often underestimate what permanent home office means for household electricity. Many things that others use at the office (8–10 hours a day!) we use at home: computers, monitors, coffee machines, dishwasher, lighting, and so on.
Edit: Not to forget the electric car.
I think if you subtract the electric car and the heat pump from our load, and then subtract another 33% from what remains (to account for the time others spend in the office), our consumption turns out to be at the upper average for a family of four and this house size.
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