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.
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nordanney
20 Jan 2021 16:13
Piotr1981 schrieb:

I accepted a great offer last week. 40 modules with SolarEdge and power optimizers. 14 kWp. Price per kWp: 955 euros. Including installation, etc.

Gross? That would be 800 euros net – awesome!
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hippjoha
20 Jan 2021 17:55
nordanney schrieb:

It sounds good at first.
Questions that come to mind are:
- Is the battery storage capacity sufficient for your self-consumption?
- How does the calculation change if the situation with storage/self-consumption is different?
- What is the cost of the Senec battery compared to a freely purchased model?
- With the cloud solution, do you not need an electricity meter (150€ per year)?
- Self-consumed electricity is not free (taxes!!!). These are probably higher with the cloud solution due to higher self-consumption (I assume that cloud usage is taxed similarly to actual self-consumption—somehow it has to be taxed). Please include this in your calculation.

I suspect that in the end your savings will shrink considerably. Just the 150€ for the meter alone. If the battery is 1,200€ more expensive than a comparable freely purchased model, that leaves only 41€ per year over 10 years. Then there is the tax issue.


The offer with the Senec battery was cheaper than the comparison offer with, for example, the LG battery. It’s about 1550 €/kWp (including 10kWh (12kWh) Senec battery and 9.8 kWp (Q.PEAK DUO-G6)) including grid connection and so on.

Whether the battery is sufficient for self-consumption remains to be seen... So far, it’s all just on paper, based on the assumed 6500 kWh (7000 kWh) per year.
The flat rate seems to be included in the Senec package, so the 150€ is not needed here. As for self-consumption and taxes from the cloud usage, I still have to check—I didn’t find anything quickly. Does anyone know anything about this?
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dhd82
20 Jan 2021 23:05
We are also getting a photovoltaic system but decided against installing a battery storage.
Without having closely examined the provider Senec, I immediately noticed in the calculation that an electricity purchase price of 29 cents per kWh is assumed.
In my opinion, that is set far too high; for example, we currently pay 23.11 cents per kWh.
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hippjoha
21 Jan 2021 23:20
dhd82 schrieb:

We are also installing a photovoltaic system but decided against adding a storage unit.
Without having looked closely at the provider Senec, I immediately noticed in the calculation that an electricity purchase price of 29 cents / kWh (29 cents per kilowatt-hour) was used.
In my opinion, this is set much too high; for example, we currently pay 23.11 cents / kWh (23.11 cents per kilowatt-hour).

The 29 cents / kWh (29 cents per kilowatt-hour) comes from me—I found it briefly today on Check24. I was too lazy to look for my current electricity bill. Even with 24 cents, the cloud option would still be cheaper.

It would be interesting to know whether the electricity drawn from the cloud counts as self-consumption (for tax purposes).
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nordanney
22 Jan 2021 08:30
hippjoha schrieb:

It would be interesting to know whether the electricity drawn from the cloud counts as self-consumption (for tax purposes)?
I found something on this topic:
www dot Photovoltaik-magazine dot de/2019/03/16/cloud-und-community-steuerlich-betrachtet/#:~:text=Die%20Kosten%20f%C3%BCr%20den%20R%C3%BCckbezug,Strom%20im%20Privathaushalt%20verbraucht%20wird.

Apparently, the tax aspect should not be underestimated...

Among other things

Text section explaining the EEG feed-in tariff for private consumption and VAT obligations.


Image with notes on income tax and VAT treatment
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nordanney
22 Jan 2021 08:37
Additionally, there are many discussions on the photovoltaic exchange page, the link to which I am not allowed to share.