Metering an Outback GT System [RE-wrenches]

[Keith Cronin]

I am looking for some suggestions for the following scenario:

 

We installed a 10kW PV system with Outback with 3048's, 12- 8D's on a
clients home that generally uses a lot more energy than the system makes.
They have a 400 amp service to the home and we have one dedicated panel for
emergency loads in the event of a power failure. They are not confident the
system is working to spec, and want to get the numbers tighter.
Unfortunately, their energy consumption falls into the category of a small
commercial client, and we have not had the privilege of ever knowing what
their initial electrical bill was, due to the home being brand new.

 

The challenge:

 

What is the best method for aggregated/cumulative energy created by the
system, that is being sent to the sub panel and also being sent back thru
the input-output of the system?

 

We did put a CT type Osaki meter on the outputs to the sub panel to "read"
what the system in the home is using, but are at a crossroad on the input-
output portion due to the Outback's can sell on their input breakers.

 

We do have a mate and 3 MX 60's, but the client is a bit older, and can't do
the base calculations. 

 

Feedback appreciated!

 

Keith Cronin

President

Island Energy Solutions Inc.

Electrical Lic. C-25221

270 Kuulei Rd. Suite 106

Kailua, HI 96734

808-262-3268 Tel

808-263-0338 Fax

kcronin at islandenergy.net 

www.islandenergy.net 

 


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