PV Metering

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Hv&Lv said:
Two meters is commonly referred to “buy all, sell all”
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When my system was commissioned in November 2015, Duke (Greenville SC) was in the middle of requiring 2 meters, to be effective January 2016. I had a very interesting conversation when they installed the new meter and threw the switch. The lady said the production meter was a requirement of the utilities commission's need to know solar production. AIUI, that requirement was eliminated quickly. They did come several years later and change my meter; I've no idea what it does the old one didn't do, but the old one gave me scrolling data including VARs. The new one doesn't.
 
GeorgeB said:
When my system was commissioned in November 2015, Duke (Greenville SC) was in the middle of requiring 2 meters, to be effective January 2016. I had a very interesting conversation when they installed the new meter and threw the switch. The lady said the production meter was a requirement of the utilities commission's need to know solar production. AIUI, that requirement was eliminated quickly. They did come several years later and change my meter; I've no idea what it does the old one didn't do, but the old one gave me scrolling data including VARs. The new one doesn't.
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I personally have never understood the two meter policy, even though we had it in place.
meters like the kV2c register four quadrant metering and keep each register separate. its not hard to charge one rate for consumption and another rate for export And makes a cleaner job overall.
 
jaggedben said:
I think for most people AHJ does not refer to the utility because by default it means whatever building department or other governmental authority has jurisdiction, which is usually not the same as the utility. Also if you mean the utility then say utility. Some places there's less of a distinction but not for most of us. In the context of this discussion, usually the metering will be decided by the utility or a contractual party and not any other AHJ.
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With most if not all of the systems I design, the AHJ is the utility when the issue is anything electrical.
 
jaggedben said:
Right. And for most other people it's not.
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Sorry, I do not see what point you are trying to make. I am using the term in its literal sense. If you are a plumber then the AHJ you deal with is likely to be the plumbing inspector. If you are an architect, then it's probably the building inspector. I am an engineer dealing with electrical services, so the AHJs I deal with are usually utilities.
 
ggunn said:
Sorry, I do not see what point you are trying to make. I am using the term in its literal sense. If you are a plumber then the AHJ you deal with is likely to be the plumbing inspector. If you are an architect, then it's probably the building inspector. I am an engineer dealing with electrical services, so the AHJs I deal with are usually utilities.
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The point is simply that when you say 'AHJ' most people across the country will not think you are referring to a utility. They will think you mean the building department (or perhaps someone else e.g. the CO of a military base), but not the utility. Be they (or you) wrong or right about the 'literal sense', they will not likely pick out what you mean if they don't know you. Thusly was your post #3 misinterpreted.
 
jaggedben said:
The point is simply that when you say 'AHJ' most people across the country will not think you are referring to a utility. They will think you mean the building department (or perhaps someone else e.g. the CO of a military base), but not the utility. Be they (or you) wrong or right about the 'literal sense', they will not likely pick out what you mean if they don't know you. Thusly was your post #3 misinterpreted.
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This is a silly argument and I'm not going any further with it other than to say that we must agree to disagree.
 
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