Energy storage

Nevertheless, it can be assumed that electricity prices will continue to rise in the future and that one will receive less and less for feeding in.

However, storage systems are likely to become significantly cheaper in the coming years.

Both are correct. 1. Overproduction will soon no longer be profitable, as there will be no reason for subsidies anymore. 2. Battery prices are falling. Consequences: 1. System design will increasingly focus on local demand – oversizing will become less attractive. 2. Storage will become an increasing economic factor for PV systems in private and commercial sectors, as it raises the self-consumption rate. Further development: The storage capacity of a storage system will not remain the only component considered – for optimizing self-consumption, charge-discharge performance and intelligent connectivity of the systems will gain greater importance – contributions to self-consumption optimization come, among others, from sector coupling, e-mobility, consumer control, and in the commercial sector peak shaving and peak shifting... Current electricity cloud offers do not target profitability, but community and belonging. Knowing this, one can do a rough calculation and then decide better – whether to agree or to reject.

I’m reopening the thread because we are currently interested in a photovoltaic system. With the cloud models, you get "storage space" in the cloud for self-produced electricity at a fixed monthly price. If you put the whole thing into Excel, it still adds up. I took the Senec values and added an electricity tariff from a comparison portal. Since no additional electricity provider is needed, the basic fee is eliminated. Depending on the additional purchase, we are talking about around 100 EUR per year for usage of 1500 kWh, and about 250 EUR for 3000 kWh.

If the batteries are more expensive for the cloud usage, e.g. Senec, it quickly no longer pays off.

What is your question? The topic itself has already been discussed x times.

I’m reopening the thread because we are currently also interested in a photovoltaic system. With the cloud models, you get "storage space" in the cloud for self-produced electricity for a fixed monthly price. If you put the whole thing into Excel, it still works out. I took the Senec values and a electricity tariff from a comparison portal. Since no other electricity provider is needed, the base price is eliminated. Depending on additional purchases, we are talking about approximately 100 EUR per year when using 1500 kW, and about 250 EUR for 3000 kW.

If the batteries are more expensive for cloud usage, it quickly no longer pays off.

The key question with a cloud solution is:
What annual consumption is included in the monthly flat rate and is it sufficient for operating a heat pump + Hamburg?
How long does my storage last or does it provide the required capacity? Because ultimately, you are also providing your own storage free of charge for charging and discharging external electricity.
I quickly distanced myself from the solution and invested the capital in additional modules. So far, I have not regretted it.