Does the solar
panel array rating restrict the usable panel production?
Yes, however Inverters can be over driven by about 120%. You can always verify with your specific inverter specification sheet to be sure you are not overdriving the inverter beyond its rated "over drive" capacity.
As an example: If my panel array is rated at 4.2 kW I should be ok with the 3.8 kw SolarEdge HD Wave inverter?
4.2kW system is .4kW larger than 3.8kW. Which is results in a 9.5% “over drive” of the inverter.
The HD wave, specifically boost 155% DC/AC oversizing rating.
This is a strong feature of this new line!!
Having said that if there shade, which will also limit production, just before the inverter. The common question: with a string inverter, if one panel goes out, all panels go out?
That not actually the case. The production is reduced
depending on how much surface space is shaded. And in fact shaded module act
like a resistor and heat up, thus damaging itself. IF you have a lot of shade I
strongly suggest the microinverters or optimizers.
But if shading is minimal or none existent than the inverter 3.8kW will produce what is feed into it.
There is a safety feature, a fuse or breaker which will “pop” if the power is greater than some predetermined capacity.
Common question: are these fuses easily replaced?