Every now and then, when the renewables in Germany produce too much electricity (sunshine, too much wind, etc.), it can also happen that you get paid for consuming electricity for an hour. The app then apparently shows a negative price and accounts for it.
With your storage and electric car, of course, you can really take advantage and fully charge everything. Whether that really works, I can't say. You'd have to read up on it more.
That's why we have the idea. We came across it through an electric car community because yesterday there was a note posted saying you should quickly plug the cars into the wallboxes, the price would be -45 cents, so you get 45 ct per kWh you draw.
Technically, many things are possible, which is why the question is whether it should become a hobby.
Apparently it should. The man really enjoys things like that. Besides, we've already invested a lot in our little house with garden and technical gadgets, so the whole project "house" and "living" becomes a kind of hobby. ;)
Moreover, we are rather "green behind the ears" and I find the concept extremely forward-looking, because it encourages people explicitly to draw electricity from the grid when there is too much electricity in the grid. Loads we can distribute, we don't need to store somewhere (with losses). When there is a lot of electricity, best use it. ;)
We are also ideal candidates for such a system since we both work from home. That means we are also at home during the day to manually start consumers if necessary when it is cheap.
Because with a 7 ct surcharge for Tibber and fees and 8 ct feed-in remuneration, electricity prices would have to be zero to negative for Tibber to be worthwhile compared to photovoltaics.
Where do they all get the 7 ct surcharge for Tibber from? According to their website, they don’t have a fee for consumption, only a monthly price of €4.90 and you pay for the purchase of the Pulse once with €100-150.
What I wonder is: How well can I control my "home system"? Photovoltaics with storage and wallbox is new territory for us. I probably have to ask the electrician. Yesterday, we read in the car community that people have taken their photovoltaic systems off the grid (turned off the inverter) to draw as much as possible from the grid because the price was negative.
I would rather avoid that. I put my photovoltaic panels on the roof to generate clean electricity, and as much as possible. I don’t want to disconnect them. They have to buy my electricity for about 8 ct, so in the case of negative electricity prices, I would rather feed in fully and draw our household demand from the grid. But that would require that I can control this. So tell the photovoltaic system "feed in," and the wallbox / storage / household "draw from the grid."
It should at least be possible to tell the storage "don’t discharge until this evening," but whether it is possible to tell it "fill yourself from the grid, not via photovoltaics, and right now" – I don’t know.
What also surprises me: Tibber publishes the prices for the coming day on the day before. How does that work?