it duplicates the price, but still cheaper than the grid. and you have backup when the grid goes down.
giving excess to the grid using virtual battery (tax free) and then consuming it later is still better deal than mining. for the saved amount, buy BTC.
do you actually do this BTW?
Regarding if solar+batteries give cheaper energy than the grid, it's vastly depends! Where and when in the world you are.
It's not always that case.
You are assuming too much things, sorry.
Regarding virtual batteries: that's why I said:
"all while maintaining independence of the possible grid surpluses subsidies."
🤷
"Sending power to the grid and then consume it later" is sometimes tricky.
Depends on the contract - devil could be in "small letter's paragraphs".
Many times you sell power for low price (it's a sunshine, spot price is low) and buy it expensive afterwards (it's a winter).
Just small note, that the cost savings are not always as expected ones.
For homes, it's actually hard to get the spot price. You usually get either flat fee or two prices (day/night or alterning hours for heat pump).
So it does not matter much. If you have two prices system, you can even charge batteries from the grid and don't consume anything during the high price times.
I personally don't use virtual battery though, I have real batteries and I can use everything I make.
No, no. As ordinary homeowner you usually cannot get spot prices. But they could be used as financial background in case of "virtual battery".
Not always, just to be not "surprised".
Virtual battery is not based on prices. You give them kWh, you can get kWh back (but you pay distribution fees).
I am just using argument of guy from Signal group you are member probably too.
If it's in your contract, then you are fine.
Wish Australia had "virtual batteries"!
Instead we just have a regulated feed-in rate, and the grid supplier retaliates by charging higher supply charges for customers who have solar.
I don't sell any of my surplus. F--- those monopolists. My BIL was selling back to the grid, until we ran the numbers and found it was actually cheaper not to.
Euroland has a lot of stupid in its regulatory systems, but less outright fraud.
