[RE-wrenches] Bi-Directional / Netmetering question

[frenergy]

Jason,

             I'm so glad you brought this up, I'm having a very similar 
issue backfeeding a utility (PG&E) meter that we recently started 
backfeeding  on a small commercial job.  Somewhat unique in that its 
208/120 SINGLE phase (L-L-N).  The inverters are pushing about 3,000 
KWhrs/month to the grid, way more than typical July consumption at this 
site  but their billing shows modest consumption.

Bill

Feather River Solar Electric
Bill Battagin, Owner
4291 Nelson St.
Taylorsville, CA 95983
530.284.7849
CA Lic 874049
www.frenergy.net

On 8/15/2018 4:01 PM, Jason Szumlanski wrote:
> Is it possible for a utility meter to be programmed/wired backward? I 
> have a client on an Enphase system with production and consumption 
> monitoring, and the Enphase monitoring is showing solar production 
> exceeded consumption by 400 kWh for a billing period. However, the 
> meter is reading almost exactly the opposite. It seems too coincidental.
>
> I'm going to go out to the site tomorrow to shut down all of the loads 
> and see what happens when solar is only backfeeding the meter, but I'm 
> curious how the meters are "programmed" or set up to work.
>
> Note that the meter was zeroed to start and the initial billing period 
> readings show DEL exceeded REC by 400 kWh, which matches what was 
> billed (net usage of positive 400 kWh).
>
> Jason Szumlanski
>
>
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