ᐅ Savings from photovoltaic system, battery storage, and electricity cloud
Created on: 4 Aug 2022 10:12
D
DaGoodness
In the construction cost thread, the topic of the usefulness of battery storage, energy cloud services, etc., came up recently.
So, here is a dedicated discussion thread on this subject.
Since May 2020, I have had a 10 kWp (kilowatt peak) system on my roof and a 10 kWh (kilowatt-hour) battery storage in the utility room. Additionally, since August 2020, I have been using an energy cloud service provided by the company Senec (EnBW).
With this service, the electricity fed into the grid during summer is credited to an account and can be drawn again in winter at favorable conditions. The general opinion on this topic everywhere is that it is not worthwhile. The same applies to the question of whether to have storage or not.
Therefore, I made a cost breakdown for myself and compared my current expenses with different scenarios such as "energy cloud service or regular electricity tariff," "photovoltaic system with and without storage," and the costs "completely without a photovoltaic system."
Attached you will find my breakdown.
Looking forward to an active discussion.
So, here is a dedicated discussion thread on this subject.
Since May 2020, I have had a 10 kWp (kilowatt peak) system on my roof and a 10 kWh (kilowatt-hour) battery storage in the utility room. Additionally, since August 2020, I have been using an energy cloud service provided by the company Senec (EnBW).
With this service, the electricity fed into the grid during summer is credited to an account and can be drawn again in winter at favorable conditions. The general opinion on this topic everywhere is that it is not worthwhile. The same applies to the question of whether to have storage or not.
Therefore, I made a cost breakdown for myself and compared my current expenses with different scenarios such as "energy cloud service or regular electricity tariff," "photovoltaic system with and without storage," and the costs "completely without a photovoltaic system."
Attached you will find my breakdown.
Looking forward to an active discussion.
D
DaGoodness4 Aug 2022 17:52That's right, it was 10 years. I would need to check again what coverage I have.
I actually have an extended warranty for the storage system up to 20 years.
I actually have an extended warranty for the storage system up to 20 years.
D
DaGoodness4 Aug 2022 21:26I just read through the warranty terms for my 20-year warranty.
After 20 years, Senec guarantees a storage capacity of at least 70%.
For defective components, I have a deductible of up to 250€ on the materials.
For defective batteries, the deductible is 250€ per kWh. That would be 675€ for a new battery if one fails within the 20 years.
The question is what happens to the still functioning batteries, since Senec apparently requires that the production dates of the installed batteries must not differ by more than one year.
After 20 years, Senec guarantees a storage capacity of at least 70%.
For defective components, I have a deductible of up to 250€ on the materials.
For defective batteries, the deductible is 250€ per kWh. That would be 675€ for a new battery if one fails within the 20 years.
The question is what happens to the still functioning batteries, since Senec apparently requires that the production dates of the installed batteries must not differ by more than one year.
How did you come up with €15,000 for a 10 kWp system including storage? What about installation costs? Is that the gross price? Storage systems were still extremely expensive two years ago … 2020. Were those prices around €1,400 per kWh of storage? You paid half of that?
Well, with that consumption, it makes sense … but for what the average person needs, probably not so much …
Well, with that consumption, it makes sense … but for what the average person needs, probably not so much …
D
DaGoodness4 Aug 2022 21:46No, that is the net price. I have been refunded the value-added tax (VAT) by the tax office.
The price fully includes installation and commissioning.
For the storage system, I also received a €2,000 (approximately $2,200) subsidy to reach that price.
Originally, it was €8,000 (approximately $8,800) net.
The price fully includes installation and commissioning.
For the storage system, I also received a €2,000 (approximately $2,200) subsidy to reach that price.
Originally, it was €8,000 (approximately $8,800) net.
D
DaGoodness4 Aug 2022 22:35Net or gross?
My system is purchased, not rented.
I also had comparison offers for just under €30,000 gross.
To clarify again: the invoice from the solar installer was exactly €20,230 gross.
The VAT of €3,230 was refunded, plus a €2,000 subsidy, so in total I paid exactly €15,000.
My system is purchased, not rented.
I also had comparison offers for just under €30,000 gross.
To clarify again: the invoice from the solar installer was exactly €20,230 gross.
The VAT of €3,230 was refunded, plus a €2,000 subsidy, so in total I paid exactly €15,000.
Similar topics