@den19420
If it makes you feel any better, the PUD probably doesn't want your power from your solar panels. For a variety of complex electrical reasons that I barely comprehend, they hate us home solar users and we make their job more difficult, far beyond what the electricity they manage to get from us is worth.
I don't know if you have an agreement where you get paid for the electricity you generate, but if you do, bravo, you're sticking it to them.
If not, just be sure to try and use as much electricity as your panels are making through whatever means you can come up with. Example, run a bitcoin miner or etherium miner, but only up to the point of what your panels produce and then shut it down when your production drops. That way your generated electricity is not leaving your home and going to the grid.
Maybe someday prices will drop on properly permitted UL1741SA compliant equipment and batteries.. if so, you could get AC coupled then. Your equipment on your roof/wall is really high quality stuff.. it's not going anywhere and should still be perfectly AC coupleable down the road.
Building your own small solar system as a backup for your fridge and computer and led lamps is a good way to learn. You will then also have a better grasp of what's going on your with grid tied system and can make educated decisions about it in the future.
back to the crazy stuff..
The panels on your roof are completely functional with other solar systems using string inverters, you would just have to not use the enphase microinverters by diconnecting the MC4 connectors from the panel to the inverter and run an mc4 cable down to your own traditional inverter instead. Because each microinverter operates independently of the others, it shouldn't even cause the whole enphase system to stop working. Be absolutely sure the panel isn't HOT while you do it though, cover it with something so it sees no light, and turn off all the panels at that "rapid shutdown for solar PV" box. You might also want to make sure power to/from your utility grid is off at the main breaker as well, but that's probably not necessary as I would think that rapid shutdown is supposed to sever the AC connection from the microinverters/panels to the rest of the system.
Taking some of your panels offline might flag your system (through Enphase built in monitoring) to your installation company though and they might ask about your panels being down and want to come service it, I don't know how reactive they are to detected equipment failure.
Messing with it like that will be frowned upon though and if not reversed back quickly will open you up to liability if something bad happens, but if in a power outage or something, and you want extra power, you could do that and hook them up to a string inverter down below, say your custom portable system. It would need to be a long power outage to justify the work though.. like end of the world length of time power outage in my mind.