30kW? or 30kVA?
Or "30kW into a resistive load"?
It is difficult (and insufficient) to distill everything down to a single number.
An AIO has power from battery, from PV, from generator, maybe from grid, to AC loads, maybe from/to several of those (bidirectional) ports. And certain bottlenecks in between. And derating based on temperature, also voltage conversion.
Similar when it came to computers. "MIPS" was a common metric. (Referred to as "Meaningless Indicator of Processor Speed". Microprocessors are often marketed based on clock speed (equivalent of RPM.) But systems also depend on memory and I/O bandwidth, etc.
So then you get Whetstones, Dhrystones ...
A number of benchmarks for inverters and AOI could be useful.
Hey
@Will Prowse , maybe you could develop benchmarks to score equipment:
NoloadWatts / MaxContinuousWatts
DeepWellPumpWatts that can be started
... etc.
With a documented defacto standard test process/setup, you and various other testers and manufacturers could publish numbers related to capability.
Of course, the test loads require much more than computer benchmarking. Rather than just measuring data rate or time to complete, need to repeat the test with a range of motor sizes.
We see some individual demos (starts four DeWalt compressors simultaneously. Does not start one large air compressor.) but not enough to compare brands & models.