ᐅ Experiences with Energy Cloud Services versus Feed-in Tariffs?
Created on: 27 Aug 2020 13:00
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Micha8589
Hello dear forum members,
Our house construction plans were significantly disrupted by the coronavirus pandemic, but you have to accept the trade-offs when pursuing something important. The good thing is we had enough time to calculate all the options and actually decided to give up our original plan of a gas boiler plus solar thermal system, as a heat pump combined with solar panels turns out to be more cost-effective over 20 years.
The current plan is:
Solid construction house, 148m2 (Kalksandstein – a type of calcium silicate brick – up to the roof ridge plus facing brick)
Air-source heat pump (Junkers Compress 7400)
Photovoltaic system plus battery storage (no provider chosen yet)
Our builder recently received an offer from Senec that includes a cloud tariff. It sounds great on paper, but both I and our builder are somewhat skeptical and are currently researching and calculating further. Unfortunately, I’ve also found contradictory information online.
Is the cloud system worthwhile, or is the classic system with feed-in tariff better?
What do you think? What are your experiences with electricity cloud systems?
Thanks in advance for your answers.
Our house construction plans were significantly disrupted by the coronavirus pandemic, but you have to accept the trade-offs when pursuing something important. The good thing is we had enough time to calculate all the options and actually decided to give up our original plan of a gas boiler plus solar thermal system, as a heat pump combined with solar panels turns out to be more cost-effective over 20 years.
The current plan is:
Solid construction house, 148m2 (Kalksandstein – a type of calcium silicate brick – up to the roof ridge plus facing brick)
Air-source heat pump (Junkers Compress 7400)
Photovoltaic system plus battery storage (no provider chosen yet)
Our builder recently received an offer from Senec that includes a cloud tariff. It sounds great on paper, but both I and our builder are somewhat skeptical and are currently researching and calculating further. Unfortunately, I’ve also found contradictory information online.
Is the cloud system worthwhile, or is the classic system with feed-in tariff better?
What do you think? What are your experiences with electricity cloud systems?
Thanks in advance for your answers.
daniel1985ffo schrieb:
How do you plan to fully charge a 10 kWp system with a 10 kWp battery and still have a heat pump connected?
Also, you have to pay taxes separately on the kWh taken from the battery as direct consumption.
I have had a photovoltaic system on my roof for one year now, 8.96 kWp (kilowatt peak).
I receive about 100 euros feed-in compensation and now have electricity costs of only around 30–40 euros.
However, I still have to submit a monthly VAT advance return. VAT is paid on the feed-in compensation and there is also a non-monetary benefit charge on the direct consumption.
Then you also have to file an annual VAT return every year. You must also prepare a profit and loss statement (EÜR), and the profit is then added to your income in the income tax return.
I recommend you familiarize yourself with the whole tax topic first. This is not easy for laypeople.
[ATTACH alt="Übersicht Einnahmen.JPG"]51177[/ATTACH]
[ATTACH alt="Umsatzsteuervoranmeldung.JPG"]51178[/ATTACH]
[ATTACH alt="EÜR.JPG"]51179[/ATTACH]
Here are some data. You have to deal with it yourself as well. Your profit and loss statement (EÜR) for 2020 is incorrect. You include the reimbursed VAT in your revenue but don’t deduct it (and possibly other VAT amounts) as expenses. Just a note.
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daniel1985ffo28 Sep 2020 17:53Please send me this by email at muellrose2003@googlemail.com
I don’t quite understand, since the Excel tool is supposed to do all of this automatically.
Thank you.
I don’t quite understand, since the Excel tool is supposed to do all of this automatically.
Thank you.
Micha8589 schrieb:
With approximately 81m2 (872 square feet) of usable roof area, the photovoltaic system would have a rated capacity of 10.56 kWp.
Storage: 10 kWh (4 x 2.5 kWh lithium-ion battery units with integrated inverters) The storage system must match the photovoltaic system. Our 9.9 kWp system will cost about €15,000 gross, including preparation, permit application (building permit / planning permission), digital meter reading, and so on.
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Micha858920 Dec 2020 12:26Hello respected forum members,
quite some time has passed again, and our house project is progressing much too slowly for my taste. However, after 11 months, the building permit application has finally been submitted—yeah!
Now back to the topic... we have finally received offers from local companies for our combination of an air source heat pump and photovoltaic system, and I wanted to ask the experts here whether this is a viable combination...
Air source heat pump:
Bosch/Junkers Condens Hybrid 7000i AW / GCH7000iF AW 7 O
Nominal output 2.71 kW
Supply/return temperature 35°C / 28°C (95°F / 82°F)
Seasonal performance factor 4.4 (with backup... whatever “backup” means in this context)
Preliminary price: €15,498
(Bafa subsidy of 35% has been applied for, although it was discontinued without replacement from 2021)
Photovoltaic system (without storage):
Solar modules from Qcells
Hybrid inverter Plenticore plus 10 (including preparation for future storage)
9.90 kWp
Preliminary price (including installation, photovoltaic system registration, commissioning support): €15,653
Is this a viable combination? For now, we have ruled out battery storage due to the high costs of storage systems.
Regards,
micha8589
quite some time has passed again, and our house project is progressing much too slowly for my taste. However, after 11 months, the building permit application has finally been submitted—yeah!
Now back to the topic... we have finally received offers from local companies for our combination of an air source heat pump and photovoltaic system, and I wanted to ask the experts here whether this is a viable combination...
Air source heat pump:
Bosch/Junkers Condens Hybrid 7000i AW / GCH7000iF AW 7 O
Nominal output 2.71 kW
Supply/return temperature 35°C / 28°C (95°F / 82°F)
Seasonal performance factor 4.4 (with backup... whatever “backup” means in this context)
Preliminary price: €15,498
(Bafa subsidy of 35% has been applied for, although it was discontinued without replacement from 2021)
Photovoltaic system (without storage):
Solar modules from Qcells
Hybrid inverter Plenticore plus 10 (including preparation for future storage)
9.90 kWp
Preliminary price (including installation, photovoltaic system registration, commissioning support): €15,653
Is this a viable combination? For now, we have ruled out battery storage due to the high costs of storage systems.
Regards,
micha8589
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RotorMotor20 Dec 2020 12:41Somehow this is the wrong thread for this question.
There are hundreds of threads about heating systems here.
With a seasonal performance factor of 4.4, it definitely does not qualify for BAFA funding.
1,500 €/kWp for the photovoltaic system is expensive. Is that net or gross?
There are hundreds of threads about heating systems here.
With a seasonal performance factor of 4.4, it definitely does not qualify for BAFA funding.
1,500 €/kWp for the photovoltaic system is expensive. Is that net or gross?
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Micha858920 Dec 2020 12:47RotorMotor schrieb:
Somehow this is the wrong thread for this question.
There are hundreds of threads about heating systems here.
With a seasonal performance factor of 4.4, it definitely does not qualify for BAFA support.
€1500 per kWp for the photovoltaic system is expensive. Is that net or gross? Yes, I know this doesn’t quite fit, but this thread has been about installing a photovoltaic system from the beginning in order to run the heat pump, so I thought I would also share the heat pump data here.
The photovoltaic price is net, which is why we have been considering going for an 8 kWp system to reduce the costs.
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