Evaluate offer, photovoltaic system technology

Of course you are right. That also depends a lot on the environment and the life situation. I work from home and can take advantage of such fluctuations very well. A storage system could also be smaller. The point is that both will happen: the electricity price will rise (grid expansion etc.) and the prices for storage systems will continue to fall.

With a sharp pen, for example, building a house is always financially inferior to renting.

Well, whatever. We roughly calculated it because our vehicles drive 30, 40 thousand km per year, often over distances of 500 km... economically speaking, an electric car is currently not competitive compared to a diesel. The lower maintenance costs do not offset the higher purchase price, the longer travel time due to the lower average speed, and especially the paid charging breaks. Why I’m still getting one... well, you want to show that you are a super innovative green company. In winter, I will probably curse it when I have to make the second charging break just before Munich...

That electricity prices will rise is anything but certain. The more green electricity there is on the grid, the cheaper it will be, because operating costs disappear. Wind costs nothing and it doesn’t have to be brought to us by ship from Australia or Venezuela.

That prices for electricity will rise is anything but certain. The more green electricity is in the grid, the cheaper it gets, because operating costs are eliminated. Wind costs nothing and it does not have to be brought to us by ship from Australia or Venezuela.

Correct, but that is only one part of the price. And therefore storage (whether car, private, large-scale systems, etc.) and changed user behavior are becoming increasingly important so that power plants do not have to be started during peak times.

I find it an absolute mystery how storage systems could be subsidized with public funds without being fully grid-supportive. When you look at the fact that most private storage systems are just charged up in the morning and simply discharged at night, it causes more problems for the grid during the morning hours than it helps. :-(

You don’t only discharge at night. For large parts of the year, you also discharge in the evening, at the time when according to Tibber it is particularly expensive. Expensive probably means high demand, because everyone comes home from work and cooks, showers, watches TV, etc. I do think that this relieves the grid.

Intelligent grids are indispensable if you want to supply yourself economically 100% from "unreliable" sources. But that also means that you can't run the washing machine for a day when the infamous dark doldrums are happening. Or that the heat pump is switched off for half a day in that case, as long as it is not -15°C outside.

I don't believe that a significant number of German citizens are currently willing to do that. The survey results for AfD, Freie Wähler and CDU also show this.

Smart grids are indispensable if you want to supply yourself economically 100% from "unreliable" sources.
But that also means that you sometimes cannot run the washing machine for a day when the infamous dark doldrums prevail. Or that the heat pump in that case is also switched off for half a day, provided it is not -15°C outside.

I don't believe that a significant number of German citizens are currently willing to do that. The survey results for AfD, Free Voters, and CDU also show that.

Don't see it so black and white!

Of course, you can run the washing machine whenever you want – but then simply at a higher price! And for the heat pump it's basically the same game – that's why there are also "Sparfuchs" tariffs where the provider can also take the device off the grid for a few hours during peak times. If you don't want that, you just take a more expensive contract or a variable one with a clever regulation.

The trick is to try to use fossil power plants as little as possible. Of course, we have to keep them available and also use them when the dark doldrums really hit.

So if people start running the washing machine when the power is available (and thus cheap), the daily peaks also become flatter. And since Germans like reading discount flyers and making lists to save 5 cents, that's a great control point. It will come, it has to come!