BigDaddy1951 wrote:
,,, How hard would it be to power all the 15 and 20 amp breakers on the load center? Just want to power the outlets, possibly the microwave.,,,
Not too difficult but depending on how complex you make it a second ATS (inverter/load center feed) and a sub panel might be needed.
When I did mine I only powered two outlet circuits so two simple 120VAC double pole double pole relays rated for 15 amp service were all I needed. Easy route for me was a pair of Xantrex relays that are in the power feed from the load center to the first outlet in the circuit. If the inverter is on and power is lost the relays switch to feed the loops with 120VAC from the inverter.
Amazon - Xantrex PROwatt SW Auto Transfer Switch