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I have 70 ac microinverter panels, I'm going to mount landscape on my barn roof. What size service panel, breakers, and wires do I need?

I have 70 ac microinverter panels I'm going to mount on my barn roof landscape. What size service panel, how many breakers and what size breakers and wire size do I need? I'm then running 150 feet up to house disconnect by utility meter, then into basement to 2 220 amp service panels. What size wire do I need for the 150 foot run and what size and how many breakers do I install in the 2 200 amp service panels? I will have 70 amps from solar array current.  Larry

Comments

Larry,

If you are using Enphase M215 at 240Vac, then you would need 5 two-pole breakers at 20A each. For 100A of solar back feed, you may need a line-side tap. 

These are pretty basic questions Larry. I would recommend that you consult with a local PV installer or electrician before you try to hack something together by yourself. I do not recommend PV as a DIY project, too many ways someone can get hurt if something is done wrong. 
Yes, seriously, you shouldn't try it yourself as anyone could be injured. It would be appropriate for you to consult some professional technician for better suggestions and work. I would recommend you to visit the following website for more helpful ideas: http://www.amtekair.com/
Submitted
11 years 5 months ago
Asked by
Larry Mitchell