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DU Home » Latest Threads » Forums & Groups » Topics » Environment & Energy » Environment & Energy (Group) » The Massive Demand For So... » Reply #4

Response to kristopher (Reply #3)

Sat Aug 10, 2013, 01:14 PM

4. I am good with all of that, and ...

 

... it sounds like a lot of good application development.

But, as above, I wonder about the part:

... connect to the pre-packaged inverter, and plug into a PV-ready utility outlet.


I can't imagine any National Electrical Code AHJ (Authority Having Jurisdiction) allowing laymen to string conductors from the array to the inverter, and "plug into" whatever a "PV ready" utility outlet may be, without an electrical inspection. I think the homeowner's fire insurance company may also have some qualms about that.

Maybe someday all residences will have some approved backfeed device already integrated into the entrance panel or utility meter enclosure. The connectors may become standardized, like our appliances are. If the conductors (or cable) from the PV array is standardized, comes in a long enough length that it doesn't have to be modified, and is vastly over-engineered for safety, maybe it can get something like a UL approval and can be plugged into the receptacle in the entrance panel. That would be pretty neat and convenient. But the downside of that versatility and over-engineering would be decreased efficiency and increased cost. Many will think the benefits would outweigh the downsides.

Anyway, I'll keep an eye on this. If it actually happens it could be a real milestone.

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