[RE-wrenches] Utility Dis-connect

[Joel Davidson]

Peter,
I think we should work to get the disco requirement changed. We formed a 
CalSEIA SoCal chapter to deal with these regional issues. Come to our next 
meeting. Someone from LADWP and the other utilities usually attend.
Joel Davidson

----- Original Message ----- 
From: "Peter Parrish" <peter.parrish at calsolareng.com>
To: <glenn.burt at glbcc.com>; "'RE-wrenches'" 
<re-wrenches at lists.re-wrenches.org>
Sent: Sunday, October 05, 2008 9:49 AM
Subject: Re: [RE-wrenches] Utility Dis-connect


> Wrenches who toil in LADWP-land. Why can't we bring our collective 
> intellect
> and force to bear on this redundant, unnecessary and costly requirement?
>
> I believe that the Los Angeles Department of Water and Power Solar 
> Incentive
> office has at least five years of data on anti-islanding: every PV system
> that applies for a rebate at LADWP undergoes an anti-islanding test. I can
> describe the test for anyone who wants to know the details, but in summary
> the inverter is verified to turn OFF when the grid is disconnected (but a
> load is still provided to the inverter) and verified to turn back ON after
> 300 secs when the grid is re-connected. I spoke to a field engineer back 
> in
> 2006 and he commented that not a single inverter ever failed this test to
> his knowledge. Could this data set be used to support the removal of this
> requirement? What would be the venue to engage the Department on this?
>
> - Peter
>
> Peter T. Parrish, Ph.D., President
> California Solar Engineering, Inc.
> 820 Cynthia Ave., Los Angeles, CA 90065
> Ph 323-258-8883, Mobile 323-839-6108, Fax 323-258-8885
> CA Lic. 854779, NABCEP Cert. 031806-26
> peter.parrish at calsolareng.com
>
> -----Original Message-----
> From: re-wrenches-bounces at lists.re-wrenches.org
> [mailto:re-wrenches-bounces at lists.re-wrenches.org] On Behalf Of Glenn Burt
> Sent: Saturday, October 04, 2008 3:25 PM
> To: jryago at netscape.com; 'RE-wrenches'
> Subject: Re: [RE-wrenches] Utility Dis-connect
>
> Here in NY, the State Public Service Commission is proposing the lockable 
> AC
> disconnect requirement be removed for systems below 15kW.
> This from a recently circulated New York State Standard Interconnection
> Requirements proposal:
>
> 4. The use of external disconnect switch has proven to be redundant and
> unnecessary in small residential systems using inverters that meet 
> relevant
> Underwriters Laboratories (UL) and Institute of Electrical and Electronics
> Engineers (IEEE) standards.  Therefore, Staff proposes to eliminate the
> external disconnect switch requirements for systems 15 kW or less that 
> meet
> UL 1741 (November 2005 revision).
>
>
> There may be hope yet!
>
> -Glenn Burt
>
> -----Original Message-----
> From: re-wrenches-bounces at lists.re-wrenches.org
> [mailto:re-wrenches-bounces at lists.re-wrenches.org] On Behalf Of Jeff Yago
> Sent: Saturday, October 04, 2008 9:25 AM
> To: RE-wrenches
> Subject: Re: [RE-wrenches] Utility Dis-connect
>
> I know installing the totally useless exterior lock-able dis-connect has
> been a bone of contention for us all, but was a necessary evil to get many
> utilities to sign onto net metering in their state back in the late 90's.
> However, now that we have had a few years of showing these are never used,
> are not needed, linemen would not know if there were in their work area, 
> and
> are a waste of money, has there been any states or utilities that are 
> giving
> up on this requirement?
>
> If not, any interest in trying to make this requirement go away?
>
> Jeff Yago
>
>
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