🤷sri

If you want a supported version for your phone then yes, it’s paid for. You can create a free build yourself though.

If I had to guess…

We had that with Sailfish OS.

Yep. And in my case, the backup battery is connected to another DC input on the inverter and the inverter pretty much manages everything. As I understand the documentation, there is no other way to use solar AND a battery at the same time as a power source for islanding. Switching over manually with a short disruption in-between is always possible of course, as is charging an AC coupled battery from an islanding solar inverter.

@[email protected]

An engineer dabbling in such things explained to me, that it is hard enough to regulate a small island network frequency and voltage-wise from a single point. Reacting to whatever another source (something like another solar inverter out in the garden with a few panels of its own, e.g.) in the same island grid does could easily lead to potentially destructive oscillations in the regulation circuit. Large grids have “mass” - literally, because large generators and electric motors are spinning at whatever speed they are spinning in whatever phase they are in. So small disturbances from regulating too quickly or a little wrong just disappear into that. The same doesn’t go for a small island grid, so at Fronius they have decided to put 52Hz on the grid which by standard prevents other sources from syncing. Electric utilities do the same when they have to power small villages from diesel generators temporarily - 52Hz and the house mounted solar generators don’t sync.

Not necessarily. While running parallel to the grid or needs to sync to it of course, but when running in island mode it can do whatever it feels like - if it supports that. My Fronius runs at 52Hz e.g. to keep other generators in the island from starting up.

During the gold rush, shovel manufacturers had a steady income.

Then go ahead and do it again. My experience in (agreed, small-ish avenues and small festivals) is still the same as it was in the 2000s. If anything, I’ve found people in the metal and synthcore scene to be more aware of each other and care more for those around them.

A lot of things that are posted online are just ragebait.

Yeah, yeah, but, numbers please, not the PR talk.

What’s the efficiency of the process then? Say, I generate 1kWh of electricity somewhere in the middle of the day on a sunny field, how much of that kWh arrives at the wheels of a car at the end of this described H2 workflow?

Have you recently been to, you know, an actual concert?

Yep. But also you need to run lead acid in a smaller charge window so you need more of them and when running out of space more panels might not be feasible - many variables in the whole thing, I don’t think there’s a universal answer, one can’t really get around setting up a small spreadsheet.

Of course it’s relevant. My LiFePos reach about 92% efficiency. Losing 12% of energy in the storage process or not losing them is a big difference.

Once you have a hammer the world is full of nails.

Nah, I think it’s more like: people that have constantly experienced being second row in everything suddenly have something they can feel smarter than everyone about. So they do.

Lead acid is pretty inefficient though, something like 80% iirc.

I’ve got some 20-ish kWh LiFePo in the basement. The internal temperature barely reacts to a forgotten window in a cold winter night. The whole thing is just many kilograms of thermal mass. Are you sure the battery temp was your problem?

I don’t know where you are

Germany, 3-phase, 400V to the home is pretty much the standard here.

We use split-phase, where we have two 120v lines that use a common neutral

Yeah, yeah, I know. It was frustrating in the beginning of electric cars - all the manufacturers put those single phase chargers into their cars because US and Asia just didn’t need anything else and we were left bumbling along at 4.2kW charging to avoid too much asymmetric load (most providers here limit you to 20A asymmetry although I’ve been known not to give a fuck) while two wonderfully capable phases sat around doing nothing and the third was only used half the way at most.

This is really where smart appliances should be heading.

Yeah, that looks interesting, although it’s unusual to see any “intelligence” delegated to the panel housing. Usually here, the panel cabinet is something like this:

https://files.catbox.moe/qjmpal.png

…which is a mechanical housing and some very basic distribution on the lower left. Everything else is built while the distributor is fitted. Look like this in the end:

https://files.catbox.moe/7u8yzm.jpg

Anyway, you can get this functionality right now, for example with a go-e wallbox and the go-e controller and retrofit it without touching the rest. That’s not really a reason not to get an electric car.

Not the US, Canada, AU or Western Europe I guess?