No, you're not being misunderstood, but you apparently are
misunderstanding how the module-level inverters will be accepted by
your power provider.
Virtually ~all~ utility companies require a customer who plans to
produce power and introduce it to their grid to have complied with
stringent regulations, both technical and legal, and have in place a
contract to feed the power into their grid. A net metering agreement
or tariff contract is required whether you produce enough to "spin
the meter backwards" or you will consume all of the power produced at
the time of production.
Worse, if you have any type of electronic revenue meter (as opposed
to the old, "spinning disc" meters), you will almost certainly be
*charged* for any excess power that you push back into the grid,
rather than credited for it. Electronic meters can tell which way the
energy is going, but are programmed by default to treat every
Watt-hour that crosses them to be consumption. The
net-metering/tariff agreement will provide you with a meter that has
been programmed to have separate registers for consumption and production.
You're also likely to run afoul of local and state regulations
concerning electrical codes if you simply "plug in" your AC modules.
Many of the less expensive (read: china made) "micro inverters" will
not have the certifications to comply with the utility's and NEC requirements.
Is it possible to charge an EV direct from the sun? Yes, but it's not
"buy it at Wallmart and plug it in" simple. Yet.
>>It seems like I am being misunderstood. You can buy solar arrays each with
its own MPP and inverter to produce 120VAC. You can buy one and add more
over time with out consideration of string balancing and such.
You can tie them to the grid, and if your rate plan us good then you will
be offsetting the cost of charging your EV with whatever the present size
of your microinverter solar arrays is.
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