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
X
xMisterDx19 Sep 2023 07:49Which I actually very much welcome. I can already almost smell the experts who will load their vehicles at the branch every day just to cook and watch TV in the evening, while those who really need to charge because they drive a lot get left out...
And in general, the public charging infrastructure is meant for people who cannot charge at home or need to charge while on the go.
Maybe let the ego-driven driver stay in the cage once in a while. It’s better for society.
And in general, the public charging infrastructure is meant for people who cannot charge at home or need to charge while on the go.
Maybe let the ego-driven driver stay in the cage once in a while. It’s better for society.
KoalasAreCute19 Sep 2023 09:30Buchsbaum schrieb:
It is probably due to the resulting loss of tax revenue. I read somewhere about a scenario where you charge for free at work and then feed electricity back into the grid at home. The question was something about taxes.
Hello,
Yes, I’ve seen a discussion along those lines somewhere as well. To be honest, it seemed like a typical German “Let’s invent some absurd special case to prevent something new” kind of debate.
Sure, there will be some rare cases of people trying this, but they will be the exception. An electric car can usually supply only about 3.6 kW. At most, you could feed back around 40 kWh in one night at home. At current feed-in tariffs, that’s about 3 euros (around $3.50) per night. Is losing your job really worth that?
Usually, experts like this get stopped by colleagues who also want to charge their cars and, more importantly, just ask how it is possible that the electric car runs flat every day despite only commuting between home and the office.
Best regards,
Andreas
KoalasAreCute schrieb:
I read somewhere about a scenario where someone charges their car at work for free and then feeds the electricity back into the grid at home. There was some question about the tax implications.
Yes, I’ve seen a discussion along those lines somewhere as well. To be honest, it seemed like a typical German “Let’s invent some absurd special case to prevent something new” kind of debate.
- Hardly any employer will provide _free_ charging stations for a large number of electric vehicles. Maybe 1-3 spots at most, to appear environmentally friendly, but not more than that.
- Such behavior would simply be theft and therefore highly problematic from an employment law perspective. At that point, you might as well take pencils and printer paper from the office and sell them.
Sure, there will be some rare cases of people trying this, but they will be the exception. An electric car can usually supply only about 3.6 kW. At most, you could feed back around 40 kWh in one night at home. At current feed-in tariffs, that’s about 3 euros (around $3.50) per night. Is losing your job really worth that?
Usually, experts like this get stopped by colleagues who also want to charge their cars and, more importantly, just ask how it is possible that the electric car runs flat every day despite only commuting between home and the office.
Best regards,
Andreas
X
xMisterDx19 Sep 2023 10:28Well. For company vehicles with personal use, it’s actually cheaper for the employer to charge them at the workplace rather than at a Supercharger costing 50 to 60 cents per kWh. Depending on the location type, electricity prices are often lower than what you pay at home. A medium-sized steel construction company, for example, doesn’t pay 35 cents per kWh for its electricity...
Besides that, I don’t think it’s a good idea to use your car battery for this kind of purpose, but of course, everyone has to decide for themselves. As I mentioned, I doubt manufacturers would still offer a warranty with excessive use. Considering current (realistic) ranges of an ID.4 in winter below 300 km (not discharging below 20% and not charging above 80%, see VW battery care guidelines), it would be quite frustrating if after a few years the battery capacity drops to only 70%, and the warranty claim is denied because the battery was regularly used as a home storage system...
For good reason, Tesla uses old car batteries as storage units... not new ones.
Besides that, I don’t think it’s a good idea to use your car battery for this kind of purpose, but of course, everyone has to decide for themselves. As I mentioned, I doubt manufacturers would still offer a warranty with excessive use. Considering current (realistic) ranges of an ID.4 in winter below 300 km (not discharging below 20% and not charging above 80%, see VW battery care guidelines), it would be quite frustrating if after a few years the battery capacity drops to only 70%, and the warranty claim is denied because the battery was regularly used as a home storage system...
For good reason, Tesla uses old car batteries as storage units... not new ones.
It won’t be free because that alone already constitutes a "monetary benefit." If someone wants to enter this tax nightmare, that’s their choice.
Regarding charging infrastructure: Time is money – fast chargers and public charging points are generally more expensive than electricity from your own home electrical system. The public infrastructure needs to be maintained and supported – and a small profit margin should remain, otherwise nobody will build it.
And as long as the government keeps its hands off, I think everything is fine.
Regarding charging infrastructure: Time is money – fast chargers and public charging points are generally more expensive than electricity from your own home electrical system. The public infrastructure needs to be maintained and supported – and a small profit margin should remain, otherwise nobody will build it.
And as long as the government keeps its hands off, I think everything is fine.
sysrun80 schrieb:
It won’t be free because that alone is already a “taxable benefit.” If anyone wants to enter this tax nightmare, be my guest.
Regarding charging infrastructure: Time is money – fast chargers and public charging points are generally more expensive than electricity from your own home installation. Public infrastructure needs maintenance and support – and there should be some profit left over, otherwise no one will build it.
And as long as the government stays out of it, I think everything is fine. That’s how it is.
The fear that someone could sneak a little bit through the back door with bidirectional charging is typically German once again. Simply ridiculous, and we end up shooting ourselves in the foot.
The public charging infrastructure is actually okay by today’s standards. We used it exclusively for a few months before our wall box was up and running. We just need to make sure it grows in line with new electric vehicle registrations.
I also find the prices acceptable, though somewhat high. But still cheaper than comparable fuel. Plus, you get back on the road quickly. Charging at home is almost free, but of course it takes longer.
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