ᐅ Photovoltaics at Any Cost – Current Situation and Available Options
Created on: 31 Jul 2022 13:22
H
HnghusBY
Hello everyone,
After countless rejections due to overload, availability, and delivery issues, I have finally received an offer for a photovoltaic system.
The system is planned for our new build (completion in 2023). We have a gable roof, almost south-facing, with a 30-degree pitch, fully usable, about 50 sqm (540 sq ft) of roof area per side.
The house is being built in Bavaria, about 60 km (37 miles) from Thuringia.
The offer surprised me a bit. The following items are included:
14x MAXEON modules at 430 W each, heat pump system, totaling 6.02 kWp - €11,138
1x Tesla Powerwall 2.0, 13.5 kWh - €10,400
Installation, etc. - €3,130
Total: €24,668 net
I find that quite expensive. I would leave out the battery anyway, but even then, I think the price for the 6 kWp system is too high. Apparently, this is currently the price you pay in Bavaria if you can find someone at all. For me, the question is whether it even makes sense to invest right now or just pay for electricity. Of course, it’s a matter of calculation, but if you follow the discussions here, those prices seem sky-high — or not?
Is it better to get offers from other regions? Are there any recommendations around the 97XXX area?
After countless rejections due to overload, availability, and delivery issues, I have finally received an offer for a photovoltaic system.
The system is planned for our new build (completion in 2023). We have a gable roof, almost south-facing, with a 30-degree pitch, fully usable, about 50 sqm (540 sq ft) of roof area per side.
The house is being built in Bavaria, about 60 km (37 miles) from Thuringia.
The offer surprised me a bit. The following items are included:
14x MAXEON modules at 430 W each, heat pump system, totaling 6.02 kWp - €11,138
1x Tesla Powerwall 2.0, 13.5 kWh - €10,400
Installation, etc. - €3,130
Total: €24,668 net
I find that quite expensive. I would leave out the battery anyway, but even then, I think the price for the 6 kWp system is too high. Apparently, this is currently the price you pay in Bavaria if you can find someone at all. For me, the question is whether it even makes sense to invest right now or just pay for electricity. Of course, it’s a matter of calculation, but if you follow the discussions here, those prices seem sky-high — or not?
Is it better to get offers from other regions? Are there any recommendations around the 97XXX area?
DaGoodness schrieb:
I had already opened a thread on this topic before.
https://www.hausbau-forum.de/threads/einsparung-pv-anlage-speicher-stromcloud-diskussionsthread.43899/First of all, congratulations on the price and thanks for the link.
Of course, the 2,000 EUR (about 2,000 USD) subsidy is something to keep in mind 😉
I would recommend everyone to read through the thread, as it puts a lot into perspective for probably 95% of those interested. But of course, everyone should form their own opinion and ask questions or seek information themselves.
- Is the load profile comparable?
- According to your figures, you get over 260 cycles per year. That is extremely high for a system where the installation size equals the storage size.
- The latter is probably due to your load profile and possibly the unwillingness to make changes. From my impression, it is realistically unachievable for most people with a heat pump, especially if you try even slightly to shift consumption to the daytime (e.g., domestic hot water preparation or daytime heating).
- Your data on charging and discharging the battery seems to have "optimized measurement points." :P Less than 2% loss during storage? Your system seems to be the solution to the energy transition. 😀 Is that realistic?
Of course, all of this is speculation. No one knows how long batteries will last. Maybe longer than we think.
Photovoltaic system 28.35 kWp, storage 10.2 kWh, installed in 2020, Renewable Energy Act tariff 9.27 cents/kWh
Storage costs: €7,340 net minus €3,040 subsidy
2021 charged: 2,694 kWh
2021 discharged: 2,290 kWh
2022 charged: 2,497 kWh
2022 discharged: 2,094 kWh
For the first 5 years, VAT would need to be added to self-consumption, while the tax deduction for depreciation over 20 years should be subtracted; both are not significant figures. The same applies to financing at 0.5%.
Storage costs: €7,340 net minus €3,040 subsidy
2021 charged: 2,694 kWh
2021 discharged: 2,290 kWh
2022 charged: 2,497 kWh
2022 discharged: 2,094 kWh
For the first 5 years, VAT would need to be added to self-consumption, while the tax deduction for depreciation over 20 years should be subtracted; both are not significant figures. The same applies to financing at 0.5%.
X
xMisterDx26 Nov 2022 00:34These figures demonstrate how impractical a storage tank is.
xMisterDx schrieb:
These numbers show how pointless a storage system is.This has already been proven many times: a storage system can be cost-effective depending on the initial investment, subsidies, usage, and other factors. It’s not appropriate to generalize here.Still, at present, achieving a positive balance is challenging. However, this is mainly due to political reasons. If only as much money had been invested in photovoltaics, water (H2O), and battery technology as in nuclear power or combustion engines, the world would look very different today. 🙄
F
fromthisplace26 Nov 2022 11:07i_b_n_a_n schrieb:
Still, right now, a positive calculation is difficult. But that’s more due to political reasons. If we had invested as much money in photovoltaics, water (H2O), and battery technology as we did in nuclear power or combustion engines, the world would probably look very different by now 🙄What annoys me most is the political favoritism toward the automotive lobby. It felt like just last year it was "OMG, we’ll never achieve good batteries, diesel is king," and now it’s "Our BMW 8 Series can drive XY km (XY miles) and has ZZZ horsepower, we’re the best."
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