enphase micro inverter, is it really better?

[Naptown]

Now that I look more closely, the M215 and D380 are completely different animals. The M215 works with a 45V max input, while the D380 is made for 2 56V max inputs.

When considering these max voltages, I assume I need to add 25% to the module Voc (as per the NEC). This puts the M215 out of spec with the panels I'm considering.

I better give them a call....

Art

The 215 is for 60 cell modules and the 190 and 380 are for 72 cell modules
More importantly look at the Enphase compatability chart to make sure they will work.
The 190 and 380 have in reality a max wattage panel of about 230w
The 215 is for higher wattage 60 cell modules.
Also on the 380 you are missing the trunk cable in your calculations which in my experience makes them more expensive than the 190.
And the costs you are looking at are retail you can do better.

[Vandergraaff]

Thanks Rich,

I talked to enphase and the confirmed that the ONLY way to match a module with an inverter is via their compatibility chart, which was just updated this week to include the M215. They also confirmed that the D380 will not play with any other inverter, so if a failed D380 cannot be replaced (eventually) those affected modules would need a different module, on a different circuit.

Can you steer me to the best prices?
Thanks.