PGE's new AC lockable requirement [RE-wrenches]

[William Miller]

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Friends:

I received about 6 copies of the message at the bottom alternating with the 
message directly below!

Turner, David L would like to recall the message, "MAJOR CHANGE TO AC 
DISCONNECT SWITCH POLICY FOR INVERTER-BASED GENERATION".

I guess Dave can't quite make up his mind.  If this is true, it will save 
hundreds of dollars for my customers.

William MIller





At 06:10 AM 11/22/2006, you wrote:


>Hi All,  Thought this would be of interest.
>
>From: "Turner, David L" <DLTk at pge.com>
>Date: November 21, 2006 7:10:35 PM PST (CA)
>Cc: "McAuley, Arthur K \(ET\)" <AKM3 at pge.com>, "O'Leary, Mark \(ET\)"
><MEO5 at pge.com>, "Skillman, Fred R \(ET\)" <FRS1 at pge.com>, "Aldridge,
>Madeleine \(ET\)" <MEG5 at pge.com>, "Wilhelm, Mark \(ET\)" <MRW6 at pge.com>
>Subject: MAJOR CHANGE TO AC DISCONNECT SWITCH POLICY FOR INVERTER- BASED 
>GENERATION
>
>Vendors:
>         Below is an important announcement regarding changes to
>PG&E's policy on AC disconnect switches for inverter-based
>generators.  Please read immediately.
>
>Dave Turner
>Project Manager, Net-Metering Program
>Pacific Gas and Electric Company
>
>p.s. Happy Thanksgiving as well!
>
>
>For Immediate Release ­ AC Disconnect Switches for Inverter-Based
>Generation
>
>
>In response to your requests and in support of the California Solar
>Initiative, Pacific Gas and Electric Company (PG&E) has modified its
>policy regarding the installation of an AC disconnect switch on
>inverter-based generation systems.  This includes photovoltaic (PV),
>fuel-cell, and inverter-based rotating machine technologies.
>Effective November 21, 2006, customers installing inverter-based
>systems will no longer be required to include an AC disconnect switch
>when the facility has a self-contained electric revenue meter (i.e.
>0-320 amp socket-based meter or 400 amp K-based meters).  This type
>of meter is used by 98% of all PG&E customers.
>
>To accommodate this change while maintaining utility operating needs,
>the revenue meter, when appropriate, may be temporarily removed by
>PG&E to isolate the customer’s generator from the electric
>distribution system.  Removal of the revenue meter (due to an
>emergency or maintenance on PG&E’s system) will result in loss of
>electrical service to the customer’s facility or residence.
>
>PG&E recommends that customers installing an inverter-based generator
>consider also installing an AC disconnect switch to facilitate
>maintenance of the customer’s equipment (i.e. inverter, PV arrays,
>etc).  The AC disconnect switch provides the additional benefit of
>allowing PG&E to isolate the customer’s generator from the utility’s
>distribution system without having to interrupt service to the
>customer’s facility or residence.
>
>PG&E’s AC disconnect requirement for Distributed Energy Resources
>(Distributed Generation) will continue to apply to:
>
>         1)  Inverter-based interconnections having a transformer- rated 
> meter (i.e. all meter panels or switchboards employing the use
>of potential and current transformers).
>
>2)  Non-inverter based generators, including rotating or machine- based 
>generators - regardless of whether the service meter
>configuration is transformer-rated or self-contained.
>
>3)  Special situations where generators may be impacting PG&E’s
>service to its customers.
>
>Please note: PG&E requires that access to the meter area not be
>impeded by animals, locked gates, or other obstacles and that the
>meter remain accessible at all times.  Special arrangements can be
>made to provide secure access by PG&E personnel, as required.
>Contact PG&E for information.
>
>If you have any questions about the new policy or its implementation,
>please contact Dave Turner at 415-973-2213 or Mark O'Leary at
>415-972-5265.
>
>
>
>
>
>Eric Stromberger
>
>Mendocino Solar Service
>--


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