Installing 20 panel enphase m215 microinverter system on ground mounted, concrete encased poles. First ground mount I've done in quite a while and I'm a little fuzzy on what the requirements are for grounding/bonding at the array location. For the microinverters, I'll be running a #8 THWN-2 continuous through each inverter back to the panel where the opd will be located. Will pick up the rails and other assocaited equipment with an egc. Do I also need to install a grounding electrode and/or separate GEC at the array. If so, does this need to tie in with the GEC going back to my panel location?