Home Backup Power Systems

[ponytug]

I think you are safe then, from the Sol Ark restrictions, with any Deye inverters sold in Portugal. I would still consider not using the dongle, possibly.

That is a great price.
We pay more in the US, split phase also probably partly for UL 9540,1741, and some other certifications

Sol Ark and EG 4 even claim EMP hardening.
If we need that... things have really gone off the rails.

There is "EMP hardening" and then there is EMP hardening for, shall we say, "worst case scenarios".

"EMP hardening" is helpful for those of us who live in areas with lightning, not to mention solar flares. But read the fine print. IIRC, the claimed hardening is at a low level, but better than nothing in my book for sure. Every little bit helps.

All the best, Peter

 

[ultrarunner]

Maybe grandpa’s single cylinder crank start diesel tractor with nothing electrical is already EMP hardened by default?

 

[fatjay]

I built my solar system off grid. It's excellent.

I paid $3k for my 6 inverters, $500 each, 3kw, for a total of 18kw split phase.

I paid $7000 for my 90kwh of battery, but i built it by hand, and that may be beyond some people's comfort level.

I paid $1000 for my solar panels because I got them for scrap second hand off a commercial installer that was unloading them.

Do some research, if you're familiar with how electricity works, it's mostly procedural.

 

[ultrarunner]

You have triple my capacity plus you have battery backup…

The power in the city is not as reliable as once was… public safety power shutoffs, pole replacements and traffic accidents are my top three… although, did have a area transformer go bad that took 3 days to replace…

35 years ago I had the only generator and it was in my service van… lots of generators around now… maybe 1 of 3 have generators and more if counting portable battery banks…

One thing inspectors look for is UL label or similar for home solar and now even RV solar subject to inspection/certification…

 

[sd455dan]

Maybe grandpa’s single cylinder crank start diesel tractor with nothing electrical is already EMP hardened by default?

yes, but so is any mechanically injected diesel up to tier 2 with a wind up spring starter fitted. Which is a good thing.

 

[fatjay]

One thing inspectors look for is UL label or similar for home solar and now even RV solar subject to inspection/certification…

I can't help but tell those people to go f themselves. I made nearly everything by myself with raw parts.

Also i have another 90kwh of battery ready to go in, for a total of 180kwh. My solar is 11kw, but i'm looking to add a second 11kw array.

In your state, you just can't build your own batteries.

 

[fatjay]

Here's my UL listing:

 

[mark in portugal]

That is a great price.
We pay more in the US, split phase also probably partly for UL 9540,1741, and some other certifications

When I first came to Europe 40 years ago, everything was far more expensive than the US. For whatever reasons, that has mostly reversed now, with the notable exception of fuel. Even that is catching up though; we're 'only' paying about 15% more than you at the moment.
EU has similar tariffs, but higher sales tax (VAT 23%) here. so I don't know why Chinese goods should be cheaper.
Things as diverse as bulk steel, work boots, and drill bits are also all a lot cheaper on this side.

 

[ponytug]

Maybe grandpa’s single cylinder crank start diesel tractor with nothing electrical is already EMP hardened by default?

Perhaps, perhaps not, as it depends on how the voltage regulator functions, plus how the alternator is constructed, the insulation and the alternator windings themselves. I'd bet not, but I'd also bet better than many more modern generators nearby.

At least to me, EMP design is not simple, and involves lots of interlocking efforts. It isn't exactly buy off the shelf, bolt together use.

All the best, Peter

 

[ultrarunner]

Perhaps, perhaps not, as it depends on how the voltage regulator functions, plus how the alternator is constructed, the insulation and the alternator windings themselves. I'd bet not, but I'd also bet better than many more modern generators nearby.

At least to me, EMP design is not simple, and involves lots of interlocking efforts. It isn't exactly buy off the shelf, bolt together use.

All the best, Peter

There is nothing OEM electrical… even starting in very cold weather takes a match to light a bunt screwed into the cylinder head being the original glow plug?