ᐅ Savings from photovoltaic system, battery storage, and electricity cloud

DaGoodness schrieb:

Attached is the current price list as of 01.08.2022.
It's even just 27 cents :p

And do you have to get the storage from Senec? What are the prices for that? Do you rent it or buy it?

Yes, the electricity cloud from Senec is only available in combination with one of their storage systems. I can’t tell you the current price. It also depends on the solar installer and the price at which they offer the storage system.

Apparently, I got mine quite cheaply. Of course, partly thanks to subsidies. From what I’ve read, many others have paid much more.

With the knowledge I have today, I probably wouldn’t choose a Senec storage system anymore. There are some disadvantages with Senec that only became clear to me later on.

DaGoodness schrieb:

There are indeed some drawbacks with Senec that only became clear to me later on.

What are those?

I’m not opposed to energy self-sufficiency. However, it requires additional investments upfront, involves extra equipment in the house, still has ongoing costs (subscription), and overall, it’s uncertain where the energy market is headed, including prices.
Maintenance/repairs/possibly additional insurance...

A proper cost analysis needs to include everything, which usually can only be assessed after several years.

driver55 schrieb:

Which ones are those?

For example, the issue with the mandatory online connection. SENEC generally advertises that their storage system requires an internet connection. I can understand that, since you can monitor your consumption data on the go via the app.
However, I wasn’t aware that the system completely shuts down and becomes practically unusable after 72 hours without internet connection, and SENEC doesn’t make this very clear in their communications. If I have a problem with my internet provider and lose connectivity for a week, after 3 days the system stops working. That’s simply not acceptable.

The second issue concerns the batteries used. If you followed it, SENEC remotely shut down all 80,000 storage units for at least nine weeks starting in March due to several incidents. Only then did I look more closely at the different battery types and by now I would prefer a system with LiFePO4 batteries instead of the Li-ion batteries installed by SENEC.

driver55 schrieb:

I’m not opposed to energy self-sufficiency. But you first need additional investment, extra technology in the house, ongoing costs (subscription), and you’re still uncertain where the energy market is heading, including prices.
Maintenance/repairs/possibly extra insurance…

Have you actually done the math yourself? What are your current costs? What does the system cost, and how much do you need to save each year for the system to pay off? That’s the only way to reach a conclusion.
My conclusion is definitely that I save money with the system.

driver55 schrieb:

A real cost calculation must include/consider everything that is usually only possible after several years.

Of course, nobody can predict the future. But I can see what I saved last year and try to extrapolate from that. The unknown factors are the future costs of the energy cloud compared to other electricity tariffs, and of course potential repair costs. If all the batteries fail after four years, my entire calculation is worthless. But those are the kinds of risks you have to factor in.
What other costs, for example, are missing from my calculation?

I’m replying here in this thread to avoid cluttering the others further. 😉

driver55 schrieb:

They play in a completely different “league” anyway… I always have to invest several thousand euros first in order to save something later. 😉

Photovoltaics/storage/cloud…: I still doubt that the calculations make sense over 10…15 or even 20 years.
For €0 (a few €)

Here’s the question again… “you doubt it”? Have you already made a meaningful calculation for yourself?
Have you looked at my calculation by now, despite the incorrect unit values? In my opinion, the calculation works well for me. But that doesn’t have to be the case for everyone.

driver55 schrieb:

Sorry, quick car question again.

You need to explain that in more detail now.

@OP: Depending on the planned mileage, you might need a second set of tires, thanks to the torque. 😉

What kind of tire wear do you all have? 😳
For me, one set lasts about 50,000–60,000 km (31,000–37,000 miles).
So I run down the current set and then put on the summer tires before I hand over the vehicle.

A few months ago, I looked into what I could get for this.
This is the result.

I currently have the data with storage included, but can’t find the one without it.