ᐅ Experiences with Energy Cloud Services versus Feed-in Tariffs?
Created on: 27 Aug 2020 13:00
M
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.
M
Martial.white27 Aug 2020 20:23I normally don’t comment in threads where everything has already been said, but here I’m making an exception to emphasize this even more.
Don’t do it!
Build your own system on the roof and keep the (small) returns for yourself.
Don’t do it!
Build your own system on the roof and keep the (small) returns for yourself.
M
Martial.white27 Aug 2020 20:52I just read that there is also a monthly fee for the cloud.
And you still have to pay for the system with the expensive storage, right?
And you still have to pay for the system with the expensive storage, right?
M
Micha85891 Sep 2020 10:02Yes, you have to pay for the system plus the monthly fee.
On paper, it all looks quite good, but I don’t really trust these promises. That’s why I turned to the forum, as I have absolutely no experience with this, and in my area, almost everyone who is building new installs the gas plus solar thermal combination because “...this new stuff doesn’t work anyway...” and so on.
So, would it be best to buy a photovoltaic system plus battery storage to cover the air source heat pump and our own consumption, and then receive some feed-in tariff at the end of the year?
However, I have to pay taxes on that, right?
On paper, it all looks quite good, but I don’t really trust these promises. That’s why I turned to the forum, as I have absolutely no experience with this, and in my area, almost everyone who is building new installs the gas plus solar thermal combination because “...this new stuff doesn’t work anyway...” and so on.
So, would it be best to buy a photovoltaic system plus battery storage to cover the air source heat pump and our own consumption, and then receive some feed-in tariff at the end of the year?
However, I have to pay taxes on that, right?
M
Martial.white1 Sep 2020 10:19In most cases, a battery storage system is only worthwhile if you receive significant subsidies or financing through a support program, such as KfW 40+ or regional funding, effectively reducing your cost to nearly zero.
Without any subsidies, experts in various forums estimate that the cost per kWh of electricity from the battery storage is about €0.40.
Electricity from the grid costs around €0.30 per kWh.
To clarify the offer once more: If I understand these proposals correctly, it means you pay a company for a solar system with battery storage (no risk, no investment for the energy provider). Then, you also pay a monthly fee for being allowed to draw electricity. You can then use as much electricity as you feed in yourself at zero cost. Any consumption beyond that will be charged at the regular electricity rate.
I think if you put this into a spreadsheet, it quickly becomes clear that this almost never pays off unless the initial investment plus the monthly fee are very, very low (I lack data for that).
Without any subsidies, experts in various forums estimate that the cost per kWh of electricity from the battery storage is about €0.40.
Electricity from the grid costs around €0.30 per kWh.
To clarify the offer once more: If I understand these proposals correctly, it means you pay a company for a solar system with battery storage (no risk, no investment for the energy provider). Then, you also pay a monthly fee for being allowed to draw electricity. You can then use as much electricity as you feed in yourself at zero cost. Any consumption beyond that will be charged at the regular electricity rate.
I think if you put this into a spreadsheet, it quickly becomes clear that this almost never pays off unless the initial investment plus the monthly fee are very, very low (I lack data for that).
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