Request to Review Inverter-Integrated Meter Certification Requirements

[Baak, Jim]

Paul,

On behalf of the California Solar Initiative's 5% Meter Certification Working Group, I am contacting you with a request to review our proposed 5% Accuracy Certification Requirements and Testing Procedures for Inverter-Integrated Meters.  This effort was undertaken at the direction of the California Public Utilities Commission to ensure the accuracy of this category of meters in the absence of standards for these devices.

Please see the attached letter and table that describes this effort and provides details on the specific tests the Working Group is proposing.  The proposed requirements make reference to ANSI/NEMA C12.1-2001, IEEE 1547, UL 1741, FCC Part 15 and Sandia/CEC Inverter Performance Test Procedures.

<<Inverter_Integrated_5%_Meters - NEMA.doc>> <<Certification Tests for Inverter Integrated Meters v1 0 2-7-08.doc>>
We would greatly appreciate if you could review the document to ensure there are no copywrite or intellectual property right infringements or concerns on behalf of NEMA.  We are requesting a response from NEMA no later than 3/28/2008 so that a final plan can be adopted as soon as possible.

Please contact me if you have any questions or comments on this request.

Kind Regards,

Jim Baak
Senior Program Manager
Customer Generation
Pacific Gas & Electric Co.
77 Beale Street, Room 2731B
San Francisco, CA 94105-1814

Mailing Address:
Mail Code B27P
P.O. Box 770000
San Francisco, CA 94177-0001

Office: 415-973-1152
Cell:    415-328-1658
Fax:    415-973-2510
Email: j6...@pge.com

www.pge.com/solar
www.pge.com/selfgen

[Baak, Jim]

Bill and Tom,

On behalf of the California Solar Initiative's 5% Meter Certification Working Group, I am contacting you with a request to review our proposed 5% Accuracy Certification Requirements and Testing Procedures for Inverter-Integrated Meters.  This effort was undertaken at the direction of the California Public Utilities Commission to ensure the accuracy of this category of meters in the absence of standards for these devices.

Please see the attached letter and table that describes this effort and provides details on the specific tests the Working Group is proposing.  The proposed requirements make reference to ANSI/NEMA C12.1-2001, IEEE 1547, UL 1741, FCC Part 15 and Sandia/CEC Inverter Performance Test Procedures.

<<Inverter_Integrated_5%_Meters - IEEE.doc>> <<Certification Tests for Inverter Integrated Meters v1 0 2-7-08.doc>>
We would greatly appreciate if you could review the document to ensure there are no copywrite or intellectual property right infringements or concerns on behalf of IEEE.  We are requesting a response from IEEE no later than 3/28/2008 so that a final plan can be adopted as soon as possible.

[Baak, Jim]

Tim,

On behalf of the California Solar Initiative's 5% Meter Certification Working Group, I am contacting you with a request to review our proposed 5% Accuracy Certification Requirements and Testing Procedures for Inverter-Integrated Meters.  This effort was undertaken at the direction of the California Public Utilities Commission to ensure the accuracy of this category of meters in the absence of standards for these devices.

Please see the attached letter and table that describes this effort and provides details on the specific tests the Working Group is proposing.  The proposed requirements make reference to ANSI/NEMA C12.1-2001, IEEE 1547, UL 1741, FCC Part 15 and Sandia/CEC Inverter Performance Test Procedures.

<<Inverter_Integrated_5%_Meters - UL.doc>> <<Certification Tests for Inverter Integrated Meters v1 0 2-7-08.doc>>
We would greatly appreciate if you could review the document to ensure there are no copywrite or intellectual property right infringements or concerns on behalf of UL.  We are requesting a response from UL no later than 3/28/2008 so that a final plan can be adopted as soon as possible.

[Baak, Jim]

Bill and Tom,

On behalf of the California Solar Initiative's 5% Meter Certification Working Group, I am contacting you with a request to review our proposed 5% Accuracy Certification Requirements and Testing Procedures for Inverter-Integrated Meters.  This effort was undertaken at the direction of the California Public Utilities Commission to ensure the accuracy of this category of meters in the absence of standards for these devices.

Please see the attached letter and table that describes this effort and provides details on the specific tests the Working Group is proposing.  The proposed requirements make reference to ANSI/NEMA C12.1-2001, IEEE 1547, UL 1741, FCC Part 15 and Sandia/CEC Inverter Performance Test Procedures.

<<Inverter_Integrated_5%_Meters - IEEE.doc>> <<Certification Tests for Inverter Integrated Meters v1 0 2-7-08.doc>>
We would greatly appreciate if you could review the document to ensure there are no copywrite or intellectual property right infringements or concerns on behalf of IEEE.  We are requesting a response from IEEE no later than 3/28/2008 so that a final plan can be adopted as soon as possible.

[Baak, Jim]

Brij,

On behalf of the California Solar Initiative's 5% Meter Certification Working Group, I am contacting you with a request to review our proposed 5% Accuracy Certification Requirements and Testing Procedures for Inverter-Integrated Meters.  This effort was undertaken at the direction of the California Public Utilities Commission to ensure the accuracy of this category of meters in the absence of standards for these devices.

Please see the attached letter and table that describes this effort and provides details on the specific tests the Working Group is proposing.  The proposed requirements make reference to ANSI/NEMA C12.1-2001, IEEE 1547, UL 1741, FCC Part 15 and Sandia/CEC Inverter Performance Test Procedures.

<<Inverter_Integrated_5%_Meters - CSA.doc>> <<Certification Tests for Inverter Integrated Meters v1 0 2-7-08.doc>>
We would greatly appreciate if you could review the document and provide comments and suggestions for the final certification requirements.  We are requesting a response no later than 3/28/2008 so that a final plan can be adopted as soon as possible.

[Baak, Jim]

Chuck,

On behalf of the California Solar Initiative's 5% Meter Certification Working Group, I am contacting you with a request to review our proposed 5% Accuracy Certification Requirements and Testing Procedures for Inverter-Integrated Meters.  This effort was undertaken at the direction of the California Public Utilities Commission to ensure the accuracy of this category of meters in the absence of standards for these devices.

Please see the attached letter and table that describes this effort and provides details on the specific tests the Working Group is proposing.  The proposed requirements make reference to ANSI/NEMA C12.1-2001, IEEE 1547, UL 1741, FCC Part 15 and Sandia/CEC Inverter Performance Test Procedures.

<<Inverter_Integrated_5%_Meters - BEW.doc>> <<Certification Tests for Inverter Integrated Meters v1 0 2-7-08.doc>>

We would greatly appreciate if you could review the document and provide comments and suggestions for the final certification requirements.  We are requesting a response no later than 3/28/2008 so that a final plan can be adopted as soon as possible.

[Baak, Jim]

Bill,

On behalf of the California Solar Initiative's 5% Meter Certification Working Group, I am contacting you with a request to review our proposed 5% Accuracy Certification Requirements and Testing Procedures for Inverter-Integrated Meters.  This effort was undertaken at the direction of the California Public Utilities Commission to ensure the accuracy of this category of meters in the absence of standards for these devices.

Please see the attached letter and table that describes this effort and provides details on the specific tests the Working Group is proposing.  The proposed requirements make reference to ANSI/NEMA C12.1-2001, IEEE 1547, UL 1741, FCC Part 15 and Sandia/CEC Inverter Performance Test Procedures.

<<Inverter_Integrated_5%_Meters - Brooks.doc>> <<Certification Tests for Inverter Integrated Meters v1 0 2-7-08.doc>>

[Baak, Jim]

Pete,

On behalf of the California Solar Initiative's 5% Meter Certification Working Group, I am contacting you with a request to review our proposed 5% Accuracy Certification Requirements and Testing Procedures for Inverter-Integrated Meters.  This effort was undertaken at the direction of the California Public Utilities Commission to ensure the accuracy of this category of meters in the absence of standards for these devices.

Please see the attached letter and table that describes this effort and provides details on the specific tests the Working Group is proposing.  The proposed requirements make reference to ANSI/NEMA C12.1-2001, IEEE 1547, UL 1741, FCC Part 15 and Sandia/CEC Inverter Performance Test Procedures.

<<Inverter_Integrated_5%_Meters - KEMA.doc>> <<Certification Tests for Inverter Integrated Meters v1 0 2-7-08.doc>>

We would greatly appreciate if you could review the document and provide comments and suggestions for the final certification requirements.  We are requesting a response no later than 3/28/2008 so that a final plan can be adopted as soon as possible.

[Baak, Jim]

Kevin,

On behalf of the California Solar Initiative's 5% Meter Certification Working Group, I am contacting you with a request to review our proposed 5% Accuracy Certification Requirements and Testing Procedures for Inverter-Integrated Meters.  This effort was undertaken at the direction of the California Public Utilities Commission to ensure the accuracy of this category of meters in the absence of standards for these devices.

Please see the attached letter and table that describes this effort and provides details on the specific tests the Working Group is proposing.  The proposed requirements make reference to ANSI/NEMA C12.1-2001, IEEE 1547, UL 1741, FCC Part 15 and Sandia/CEC Inverter Performance Test Procedures.

<<Inverter_Integrated_5%_Meters - MET Labs.doc>> <<Certification Tests for Inverter Integrated Meters v1 0 2-7-08.doc>>

[Baak, Jim]

Tony,

On behalf of the California Solar Initiative's 5% Meter Certification Working Group, I am contacting you with a request to review our proposed 5% Accuracy Certification Requirements and Testing Procedures for Inverter-Integrated Meters.  This effort was undertaken at the direction of the California Public Utilities Commission to ensure the accuracy of this category of meters in the absence of standards for these devices.

Please see the attached letter and table that describes this effort and provides details on the specific tests the Working Group is proposing.  The proposed requirements make reference to ANSI/NEMA C12.1-2001, IEEE 1547, UL 1741, FCC Part 15 and Sandia/CEC Inverter Performance Test Procedures.

<<Inverter_Integrated_5%_Meters - ETL.doc>> <<Certification Tests for Inverter Integrated Meters v1 0 2-7-08.doc>>

We would greatly appreciate if you could review the document and provide comments and suggestions for the final certification requirements.  We are requesting a response no later than 3/28/2008 so that a final plan can be adopted as soon as possible.

[Baak, Jim]

Paul,

 

Thanks for the quick response.  I'm happy to hear that there are no concerns from NEMA on the proposed certification requirements.

 

Kind Regards,

Jim Baak
Senior Program Manager
Customer Generation
Pacific Gas & Electric Co.

Office: 415-973-1152
Cell:    415-328-1658
Fax:    415-973-2510

www.pge.com/solar
www.pge.com/selfgen

 

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From: Orr, Paul [mailto:Pau...@nema.org]
Sent: Tuesday, March 18, 2008 12:00 PM
To: Baak, Jim
Cc: onboard...@googlegroups.com; Hornbrook, Charles; andrew....@xantrex.com; ben.g...@sce.com; Bob Botkin; Brian Farhi; carissa...@sce.com; cwi...@imsmeters.com; Ivan Cooper; jber...@sma-america.com; Jeff Newmiller; Jerry Pilger; jon.bon...@sdenergy.org; Joseph Fleshman; mdar...@enphaseenergy.com; mlaf...@universalenergies.com; n...@cpuc.ca.gov; oba...@smud.org; pat.ad...@veris.com; Pnar...@energy.state.ca.us; Raghu Belur; ri...@fatspaniel.com; rjoh...@sunpowercorp.com; roger...@pvpowered.com; ste...@ccontrolsys.com; Tirona, William; Silcox, Clark; Caskey, John
Subject: RE: Request to Review Inverter-Integrated Meter Certification Requirements

Jim,

 

NEMA does not have an issue with referencing the ANSI C12.1 test in your document.

Regards,

Paul Orr

Program Manager

NEMA Technical Services

Pau...@nema.org

 

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[Baak, Jim]

Tony,

 

Thank you very much for looking over these requirements.  Are there specific tests on which you have questions or comments?  Once we get a final version, how long would it take Intertek to get ready to conduct the testing?  What would you need from us to prepare?

 

Also, we have proposed looking for a NRTL and an inverter meter manufacturer to do a "dry run" of the tests to iron out any issues and establish a baseline of how the tests should be conducted and what constitutes a "pass/fail".  Do you have any suggestions for the group on this?  Would Intertek be interested in participating?

 

Regards,

Jim Baak
Senior Program Manager
Customer Generation
Pacific Gas & Electric Co.

Office: 415-973-1152
Cell:    415-328-1658
Fax:    415-973-2510

www.pge.com/solar
www.pge.com/selfgen

 

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From: Tony Dorta Intertek [mailto:tony....@intertek.com]
Sent: Wednesday, March 19, 2008 6:38 PM
To: Baak, Jim

Subject: RE: Request to Review Inverter-Integrated Meter Certification Requirements

Jim, I have gone through the changes to ANSI C12.1 and although some of the requirements are still to be cleared up, Intertek can perform all of the testing in this standard at several of our offices right now.  We have equipment and personnel to support these tests.  Please feel free to keep me updated on future changes and thank you for the email

 

Regards,

Tony Dorta 
Assitant Chief Engineer
Intertek
Phone: (206) 248-8160
Fax: (503) 626-7328
Email Address: tony....@intertek.com
Website: www.intertek-etlsemko.com

 This e-mail transmission is strictly confidential and is intended solely for the identified person at the identified organization to whom it is addressed. This e-mail may contain privileged and confidential information. If you are not the intended recipient you must not copy, print, distribute or take any action in reliance upon this e-mail. If you have received this e-mail in error then please notify us as soon as possible and delete this e-mail.

Although Intertek Group plc believes this e-mail and any attachments to be free of any virus or other defect which may affect your computer, it is the responsibility of the recipient to ensure that it is virus free and Intertek Group plc does not accept any responsibility for any loss or damage arising in any way from its use."

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From: Baak, Jim [mailto:J6...@pge.com]

Sent: Tuesday, March 18, 2008 2:48 PM
To: Tony Dorta Intertek

Subject: RE: Request to Review Inverter-Integrated Meter Certification Requirements

Thanks, Tony.  I really appreciate your perspective on this, particularly with respect to what is required for and how long it will take Intertek to prepare for testing these inverter-integrated meters to these requirements.

Regards,

 

Jim Baak
Senior Program Manager
Customer Generation
Pacific Gas & Electric Co.

Office: 415-973-1152
Cell:    415-328-1658
Fax:    415-973-2510

www.pge.com/solar
www.pge.com/selfgen

 

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From: Tony Dorta Intertek [mailto:tony....@intertek.com]
Sent: Tuesday, March 18, 2008 2:35 PM
To: Baak, Jim

Subject: RE: Request to Review Inverter-Integrated Meter Certification Requirements

Jim, I am trying to get a copy of the standard and I will go over the changes proposed.  Thanks

 

Regards,

Tony Dorta 
Assistant Chief Engineer
Intertek
Phone: (206) 248-8160
Fax: (503) 626-7328
Email Address: tony....@intertek.com
Website: www.intertek-etlsemko.com

 This e-mail transmission is strictly confidential and is intended solely for the identified person at the identified organization to whom it is addressed. This e-mail may contain privileged and confidential information. If you are not the intended recipient you must not copy, print, distribute or take any action in reliance upon this e-mail. If you have received this e-mail in error then please notify us as soon as possible and delete this e-mail.

Although Intertek Group plc believes this e-mail and any attachments to be free of any virus or other defect which may affect your computer, it is the responsibility of the recipient to ensure that it is virus free and Intertek Group plc does not accept any responsibility for any loss or damage arising in any way from its use."

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From: Baak, Jim [mailto:J6...@pge.com]

Sent: Friday, March 14, 2008 6:30 PM
To: Tony Dorta Intertek
Cc: onboard...@googlegroups.com; Hornbrook, Charles; andrew....@xantrex.com; Baak, Jim; ben.g...@sce.com; Bob Botkin; Brian Farhi; carissa...@sce.com; cwi...@imsmeters.com; Ivan Cooper; jber...@sma-america.com; Jeff Newmiller; Jerry Pilger; jon.bon...@sdenergy.org; Joseph Fleshman; mdar...@enphaseenergy.com; mlaf...@universalenergies.com; n...@cpuc.ca.gov; oba...@smud.org; pat.ad...@veris.com; Pnar...@energy.state.ca.us; Raghu Belur; Rich Eckman; rjoh...@sunpowercorp.com; roger...@pvpowered.com; ste...@ccontrolsys.com; Tirona, William

Subject: Request to Review Inverter-Integrated Meter Certification Requirements

CONFIDENTIALITY NOTICE

This email may contain confidential or privileged information, if you are not the intended recipient, or the person responsible for delivering the message to the intended recipient then please notify us by return email immediately. Should you have received this email in error then you should not copy this for any purpose nor disclose its contents to any other person.
www.intertek.com <http://www.intertek.com>

CONFIDENTIALITY NOTICE

This email may contain confidential or privileged information, if you are not the intended recipient, or the person responsible for delivering the message to the intended recipient then please notify us by return email immediately. Should you have received this email in error then you should not copy this for any purpose nor disclose its contents to any other person.
www.intertek.com <http://www.intertek.com>

[Baak, Jim]

Brij,

 

Thanks very much for your comments - we'll definitely take them into consideration for revising the requirements.  Perhaps we should talk at some point to give you some additional background on this effort and see where CSA can support.

 

Regards,

Jim Baak
Senior Program Manager
Customer Generation
Pacific Gas & Electric Co.

Office: 415-973-1152
Cell:    415-328-1658
Fax:    415-973-2510

www.pge.com/solar
www.pge.com/selfgen

 

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From: Brij Aggarwal [mailto:Brij.A...@csa-international.org]
Sent: Friday, March 28, 2008 12:53 PM
To: Baak, Jim
Cc: onboard...@googlegroups.com; Hornbrook, Charles; andrew....@xantrex.com; ben.g...@sce.com; Bob Botkin; Brian Farhi; carissa...@sce.com; cwi...@imsmeters.com; Ivan Cooper; jber...@sma-america.com; Jeff Newmiller; Jerry Pilger; jon.bon...@sdenergy.org; Joseph Fleshman; mdar...@enphaseenergy.com; mlaf...@universalenergies.com; n...@cpuc.ca.gov; oba...@smud.org; pat.ad...@veris.com; Pnar...@energy.state.ca.us; Raghu Belur; ri...@fatspaniel.com; rjoh...@sunpowercorp.com; roger...@pvpowered.com; ste...@ccontrolsys.com; Tirona, William

Subject: RE: Request to Review Inverter-Integrated Meter Certification Requirements

Hello Jim:

 

Thanks very much for giving us the opportunity to comment on the proposed 5% Accuracy Certification Requirements. Unfortunately, I do not have details of the background and discussions which form the basis of this proposal. It is obvious a lot of work and thought went into this.

 

Couple of general comments:

 

1. If the objective is to make sure (with a reasonable amount of certainty) that the meter is accurate to within 5%, are the tolerances in various tests coordinated in such a way that if two conditions can exist simultaneously, the accuracy will still remain within the limits?

 

2. The reference is made to UL 1741 and CEC Sandia Testing Protocol in some tests. It should be noted that UL 1741 testing is completely separate from the CEC testing. e.g. voltage and frequency variation tests and CEC power levels do not happen at the same time.

 

I have added my other comments in the attached document.

 

Please advise if more information is required.

 

Thanks and Regards

 

Brij

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From: Baak, Jim [mailto:J6...@pge.com]

Sent: Friday, March 14, 2008 5:44 PM
To: Brij Aggarwal
Cc: onboard...@googlegroups.com; Hornbrook, Charles; andrew....@xantrex.com; Baak, Jim; ben.g...@sce.com; Bob Botkin; Brian Farhi; carissa...@sce.com; cwi...@imsmeters.com; Ivan Cooper; jber...@sma-america.com; Jeff Newmiller; Jerry Pilger; jon.bon...@sdenergy.org; Joseph Fleshman; mdar...@enphaseenergy.com; mlaf...@universalenergies.com; n...@cpuc.ca.gov; oba...@smud.org; pat.ad...@veris.com; Pnar...@energy.state.ca.us; Raghu Belur; ri...@fatspaniel.com; rjoh...@sunpowercorp.com; roger...@pvpowered.com; ste...@ccontrolsys.com; Tirona, William

Subject: Request to Review Inverter-Integrated Meter Certification Requirements

 This message is intended only for the use of the person or organization to which it is addressed, and may contain information that is privileged, confidential and exempt from disclosure under applicable law. If the reader of this message is not the intended recipient, or responsible for delivering the message to the intended recipient, you are hereby notified that any dissemination, distribution or copying of this communication is strictly prohibited. If you have received this communication in error, please notify the sender immediately by email and delete the original message immediately. The sender, its subsidiaries and affiliates, do not accept liability for any errors, omissions, corruption or virus in the contents of this message or any attachments that arise as a result of e-mail transmission. Thank you.