Here's the high lights of UL-1741
UL 1741 highlights
Anti-Islanding test is an important part of the testing, but most UL testing includes
fire prevention factors & and anti-electrocution as the main thrust of the testing.
At least it was that way when I was getting FCC & UL testing done for NEC printers and PCs.
The risk of 'electrocuting a lineman' down the road is always going to be a problem.
If it's not part of their training to double check lines (for back-feed) before working on them, it should be.
Anytime you have a storm with lightning, there is a chance that a grid tied inverter might get damaged.
If it's not 100% fail-safe with redundant back-up/continuous self-testing, it just might keep putting killer AC out to the grid...
Touching 'dead' lines after a storm is like flying in a helicopter..
You have to really
trust complicated machinery..
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I wonder what happens when you have a few grid-tied systems on the same short street..?.
It seems all it would take is some downed lines, and a single malfunction to keep all the grid-tied systems on-line...
It seems like they would feed each other..
Tricking the systems into thinking the grid was still connected..
Or, maybe some goofball with a 6kw gas gen connected to the grid??
That might keep those Enphase homes making juice..?.