[RE-wrenches] Gross PV production meter options

[Christopher Warfel]

I believe the Outback configuration will spin the meter backwards when 
utility power is used to charge the batteries. I checked with former 
co-workers in a utility meter department. A meter with a detent would be 
the simplest way to make the meter unidirectional, but those meters are 
supposedly long gone. A meter programmed to be unidirectional would 
achieve what the installer wants.

Chris

On 12/7/2011 12:59 AM, wirewiz at gmail.com wrote:
> David,
>
> Here is a link to what you might be looking for:
> http://www.outbackpower.com/pdf/tech_notes/120_vac_single_inverter.pdf
>
> Larry Liesner
> Wirewiz
> 31 Lincoln St
> Westport, CT 06880
> 203-644-2404 <tel:203-644-2404>
> wirewiz at gmail.com <mailto:wirewiz at gmail.com>
> www.wire-wiz.com <http://www.wire-wiz.com>
> NABCEP Certified PV Installer (# 032611-184)
>
>
> On Tue, Dec 6, 2011 at 5:08 PM, Dave Palumbo 
> <dave at independentpowerllc.com <mailto:dave at independentpowerllc.com>> 
> wrote:
>
>     We are installing a grid interactive, with battery back-up,
>     OutBack Radian GS8048 with 5kW of PV. Vermont has a “Solar Adder”
>     premium that varies from utility to utility but in this case adds
>     6 cents per kWh over and above net-metering (basically to come up
>     to a par value of 20 cents/kWh for PV production).
>
>     We need to install a gross PV production meter between the main
>     (utility) load center panel and the Radian inverter. We need a
>     meter that is not multidirectional, as we only want to count the
>     kWh’s that are pushed out into the grid (and not subtract what the
>     Radian uses from utility power to satisfy the protected loads
>     center when the sunlight doesn’t handle that).
>
>     Hialeah Meter offered a GE KV2CE meter that can be programmed to
>     do what we need for $ 260 plus $25 programming fee.
>
>     The utility will have an option, but I’m wondering what other
>     options others have used for this situation.
>
>     David Palumbo
>
>     Independent Power LLC
>
>     462 Solar Way Drive
>
>     Hyde Park, VT 05655
>
>     */www.independentpowerllc.com <http://www.independentpowerllc.com> /*
>
>     NABCEP Certified PV Installer
>
>     Vermont Solar Partner
>
>     23 Years Experience, (802) 888-7194 <tel:%28802%29%20888-7194>
>
>
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-- 

Christopher Warfel, P.E.
ENTECH Engineering, Inc.
Energy Utilization Experts
(401)466-8978

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