So you can’t buy raw solar panels or inverters in Germany?
Sure you can. Solar panels will be fried by grid voltage more or less immediately if you connect them directly to a wall socket and become useless.
You cannot buy a PV inverter in Germany (entire EU really) that doesn’t automatically shut off if it doesn’t detect a frequency to sync against from it’s AC side, unless it can run off-grid in which case it has to disble the grid connection within the same 20ms.
You cannot buy a PV inverter in Germany (entire EU really) that doesn’t automatically shut off if it doesn’t detect a frequency to sync against from it’s AC side, unless it can run off-grid in which case it has to disble the grid connection within the same 20ms.
So you can’t buy a grid-connected inverter with off-grid capabilities? Because the inverter has no way to tell the difference between the grid being off, and being off-grid.
Oh you can buy off grid inverters (or inverters capable of “island mode”). But they are required to be able to automatically disconnect from grid, even if they are never going to be connected to a grid. You can’t buy solar inverters without this for the exact reason that you can connect them to grid.
Again, it doesn’t matter what inverter you buy, they can’t tell the difference between off grid and grid off. So if it shuts off when it doesn’t detect voltage, then it won’t work off grid. Which makes it sound like you’re saying off-grid inverters are illegal.
I mean…if there is no grid frequency detected it automatically breaks connection between the house and the grid and keeps supplying the house from the panels and batteries. When it detects grid frequency again it reconnects the house to grid. It’s a fairly simple concept.
So you do realize that this is exactly how HV wire detectors work right lol… You hold up a wire (or there’s a wire in the wall) carrying high voltage, and the wand will pick up the EM Field.
So you can’t buy raw solar panels or inverters in Germany?
It’s not, which is why I’m not sure why you’re struggling.
Sure you can. Solar panels will be fried by grid voltage more or less immediately if you connect them directly to a wall socket and become useless.
You cannot buy a PV inverter in Germany (entire EU really) that doesn’t automatically shut off if it doesn’t detect a frequency to sync against from it’s AC side, unless it can run off-grid in which case it has to disble the grid connection within the same 20ms.
So you can’t buy a grid-connected inverter with off-grid capabilities? Because the inverter has no way to tell the difference between the grid being off, and being off-grid.
Oh you can buy off grid inverters (or inverters capable of “island mode”). But they are required to be able to automatically disconnect from grid, even if they are never going to be connected to a grid. You can’t buy solar inverters without this for the exact reason that you can connect them to grid.
Again, it doesn’t matter what inverter you buy, they can’t tell the difference between off grid and grid off. So if it shuts off when it doesn’t detect voltage, then it won’t work off grid. Which makes it sound like you’re saying off-grid inverters are illegal.
They detect incoming frequency, not voltage. And yes, they absolutely detect the difference, I have one, it works exactly like this.
How do you detect the frequency of voltage that doesn’t exist? Hold a wire up in the air and measure the frequency and let me know what you find.
I mean…if there is no grid frequency detected it automatically breaks connection between the house and the grid and keeps supplying the house from the panels and batteries. When it detects grid frequency again it reconnects the house to grid. It’s a fairly simple concept.
Okay now try again but there is no grid.
So you do realize that this is exactly how HV wire detectors work right lol… You hold up a wire (or there’s a wire in the wall) carrying high voltage, and the wand will pick up the EM Field.
Right. What’s the typical frequency of the EMF field generated by a piece of wire?
Of course you can buy whatever you like, and whatever is being sold has to be compliant with local legal requirements.
If you buy illegal stuff and cause problems, you will have problems with your insurance and potentially, legal ones.
And that’s all I’m going to say on the matter. HAND.
There’s no way to prevent people from connecting perfectly legal equipment in an illegal manner, where otherwise there would be.