From: Robert Greeson [mailto:rgreeson@electro-mechanical.com] Sent: Tuesday, December 20, 2011 8:38 AM To: 'Richard Parker'; 'Meyers, Aaron' Cc: 'Tendulkar, Vijay (SISC)'; 'Timothy Ballo'; 'Fr eeman, Jeremiah (CONTR)'; rick.anderson@faypwc.com; ScottB@lvmetals.com; john.caskey@nema.org ; 'Corkran, Jerry L'; 'Cymbalsky, John'; adelaski@standardsasap.org; Teckman@nwcounc il.org; gbf1@pge.com; carlos.gaytan@ge.com; rgreeson@federalpacific.com; bruce.r.hirsch@bge .com; jhodge@howard.com; mhyland@appanet.org; dave.millure@metglas.com; snadel@aceee.org; wes.pa tterson@us.abb.com; Eric.Petersen@aksteel.com; Raymond.Polinski@atimetals.com; artrosenfeld@g mail.com; srosenstock@eei.org; rroy@nrdc.org; robert.saint@nreca.coop; chuck.simmons@pgnmail.c om; kwinder@mleainc.com; mwaltner@nrdc.org; jerry.schoen@aksteel.com; Paul.Ryan@hitmet.com; BermanEconomics@gmail.com; ahofmann@publicpower.org; pkumar@publicpower.org; bsmith@federalpacific.com; greg.coulter405@gmail.com; jmauer@standardsas ap.org; 'Cohen, Daniel'; Jim.creevy@nema.org; jrossetti@mlgw.org; cabolduc@lbl.gov; kcoughlin@lbl.gov; Brian Coffey; Michael Rivest; gjrosenquist@lbl.gov; Caitlin Johnson; Zhimei Lu o; 'Marchetti, Emily (CONTR)'; charlied@uus.org; DYoung@energy-solution.com; James.Lass@cleco.com; maheshsampat@bellsouth.net; phopkinson@hvolt.com; Matthew Nardotti; 'R aba, Jim'; 'Savitz, Maxine (EMAB)'; tpetrosino@carolina.rr.com; chris.brown@cogentpo werinc.com; ted.johnstone@cogentpowerinc.com; frank.guilbault@cogentpowerinc.com; ned.ef brush@gmail.com; dbren der@cda.copper.org; chad.kennedy@us.schneider-electric.com; eduardorobles@eaton.com; thomas.patzner@us.schneiderelectric.com; carlosgsiqueiros@eaton.com; chad.k ennedy@schneider-electric.com; 'Hyland, Mike'; 'Caskey, John'; thomas.patzner@schneider-electric.com; 'Kennedy, Irene (SISC)'; scott.may@siemens.com; Robert Carmichael; Christopher Lau Subject: RE: LVDT Working Group on Data Center Transformers All, The first sentence in the write-up defines a “low-voltage dry-type” distribution transformer. I think this may be covered but we can fu rther clarify and say windings <= 600V or something like that. Also , are 1-phase not included with data center transformers.

Robert S. Greeson Engineering Manager, P.E. Federal Pacific Company P.O. Box 8200 Bristol, Virginia 24203-8200 Phone - 276-645-8210 | Fax 276-645-8956 Email: rgreeson@federalpacific.com

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<///>< From: Richard Parker [ mailto:richardparkerdc@gmail.com ] Sent: Monday, December 19, 2011 10:11 PM To: Meyers, Aaron Cc: Tendulkar, Vijay (SISC); Timothy Ballo; Freeman, Jeremiah (CONTR); rick.anderson@faypwc.com ; ScottB@lvmetals.com ; john.caskey@nema.org ; Corkran, Jerry L; Cymbalsky, John; adelaski@standardsasap.org ; Teckman@nwcouncil.org ; gbf1@pge.com ; carlos.gaytan@ge.com ; rgreeson@federalpacific.com ; bruce.r.hirsch@bge.com ; jhodge@howard.com ; mhyland@appanet.org ; dave.millure@metglas.com ; snadel@aceee.org ; wes.patterson@us.abb.com ; Eric.Petersen@aksteel.com ; Raymond.Polinski@atimetals.com ; artrosenfeld@gmail.com ; srosenstock@eei.org ; rroy@nrdc.org ; robert.saint@nreca.coop ; chuck.simmons@pgnmail.com ; kwinder@mleainc.com ; mwaltner@nrdc.org ; jerry.schoen@aksteel.com ; Paul.Ryan@hitmet.com ; BermanEconomics@gmail.com ; ahofmann@publicpower.org ; pkumar@publicpower.org ; bsmith@federalpacific.com ; greg.coulter405@gmail.com ; jmauer@standardsasap.org ; Cohen, Daniel; Jim.creevy@nema.org ; jrossetti@mlgw.org ; cabolduc@lbl.gov ; kcoughlin@lbl.gov ; brian.coffey@navigant.com ; mrivest@navigant.com ; gjrosenquist@lbl.gov ; caitlin.johnson@navigant.com ; zhimei.luo@navigant.com ; Marchetti, Emily (CONTR); charlied@uus.org ; DYoung@energy-solution.com ; James.Lass@cleco.com ; maheshsampat@bellsouth.net ; phopkinson@hvolt.com ; matthew.nardotti@navigant.com ; Raba, Jim; Savitz, Maxine (EMAB); tpetrosino@carolina.rr.com ; chris.brown@cogentpowerinc.com ; ted.johnstone@cogentpowerinc.com ; frank.guilbault@cogentpowerinc.com ; ned.efbrush@gmail.com ; dbrender@cda.copper.org ; chad.kennedy@us.schneider-electric.com ; eduardorobles@eaton.com ; thomas.patzner@us.schneider-electric.com ; carlosgsiqueiros@eaton.com ; chad.kennedy@schneiderelectric.com ; Hyland, Mike; Caskey, John; Robert Greeson; thomas.patzner@schneider-electric.com ; Kennedy, Irene (SISC); scott.may@siemens.com ; Robert.Carmichael@navigant.com ; Christopher.Lau@navigant.com Subject: Re: LVDT Working Group on Data Center Transformers Aaron, Thanks for catching this. I would like to refer your question to Dan Cohen for a more definitive answer, but my instinct would be that it should be possible (and not terribly difficult as a legal matter) to limit the exclusion to dry-type transformers. Richard On Mon, Dec 19, 2011 at 6:49 PM, Meyers, Aaron < Aaron.Meyers@cooperindustries.com > wrote: Dear Mr. Parker, Medium-voltage liquid-filled transfor mers are often used in data center applications and therefore, defining a "Data Center Transformer" as a three-phase low-voltage dr y-type distribution tran sformer is potentially damaging. Would it be possible to either modify the definition to recognize other types of data center transformers but state that the exemption only applies to the low-vo ltage dry type variety? Anotheralternative might be to define it more specifically as a Low-Voltage Dry Type Data Center Transformer? Thoughts? Comments? Thanks and Best Regards, Aaron -----Original Message----- From: Tendulkar, Vijay (SISC) [mailto: vijay.tendulka r@onyxpower.com ] Sent: Sunday, December 18, 2011 1:54 PM To: Richard Parker Cc: Timothy Ballo; Freeman, Jeremiah (CONTR); ' rick.anderson@faypwc.com '; 'ScottB@LVMetals.com'; ' john.caskey@nema.org '; Corkran, Jerry L; Cymbalsky, John; 'adelaski@standardsASAP.org'; ' Teckman@nwcouncil.org '; ' gbf1@pge.com '; ' carlos.gaytan@ge.com '; ' rgreeson@federalpacific.com '; ' bruce.r.hirsch@bge.com '; ' jhodge@howard.com '; ' mhyland@appanet.org '; ' dave.millure@metglas.com '; ' snadel@aceee.org '; ' wes.patterson@us.abb.com '; ' Eric.Petersen@aksteel.com '; 'Raymond.Polinski@ATImetals.com'; ' artrosenfeld@gmail.com '; ' srosenstock@eei.org '; ' rroy@nrdc.org '; ' robert.saint@nreca.coop '; ' chuck.simmons@pgnmail.com '; ' kwinder@mleainc.com '; ' mwaltner@nrdc.org '; ' jerry.schoen@aksteel.com '; ' Paul.Ryan@hitmet.com '; ' BermanEconomics@gmail.com '; ' ahofmann@publicpower.org '; ' pkumar@publicpower.org '; ' bsmith@federalpacific.com '; ' greg.coulter405@gmail.com '; ' jmauer@standardsasap.org '; Cohen, Daniel; Meyers, Aaron; ' Jim.creevy@nema.org '; ' jrossetti@mlgw.org '; ' cabolduc@lbl.gov '; ' kcoughlin@lbl.gov '; ' brian.coffey@navigant.com '; ' richardparkerdc@gmail.com '; ' mrivest@navigant.com '; ' gjrosenquist@lbl.gov '; ' caitlin.johnson@navigant.com '; ' zhimei.luo@navigant.com '; Marchetti, Emily (CONTR); ' charlied@uus.org '; ' DYoung@energy-solution.com '; ' James.Lass@cleco.com '; ' maheshsampat@bellsouth.net '; ' phopkinson@hvolt.com '; ' matthew.nardotti@navigant.com '; Raba, Jim; Savitz, Maxine (EMAB); ' tpetrosino@carolina.rr.com '; ' chris.brown@cogentpowerinc.com '; ' ted.johnstone@cogentpowerinc.com '; ' frank.guilbault@cogentpowerinc.com '; ' ned.efbrush@gmail.com '; ' dbrender@cda.copper.org '; ' chad.kennedy@us.schneider-electric.com '; ' eduardorobles@eaton.com '; ' thomas.patzner@us.schneider-electric.com '; ' carlosgsiqueiros@eaton.com '; ' chad.kennedy@schneider-electric.com '; 'Hyland, Mike'; 'Caskey, John'; 'Robert Greeson'; ' thomas.patzner@schne ider-electric.com '; Kennedy, Irene (SISC); ' scott.may@siemens.com '; ' Robert.Carmichael@navigant.com '; ' Christopher.Lau@navigant.com ' Subject: LVDT Working Group on Data Center Transformers Dear Mr. Parker and respected all others,I still have problems with E-Mail and I hope this communications reaches all of you. Mr. Ballo is kind enough to bail me out of my E-Mail problems and help me out with my not so good proficiency in Microsoft Word editin g. Without lot of help from Mr. Patzner and Mr. Ballo, DCT definition document could not have been finished in timely manner. I wish, I will get to work every day with young gentlemen like Mr. Patzner and Mr. Ballo. Further, the comments raised in the meetings by various individuals were very helpful in formulating the final documents. On be half of DCT subcommittee, I extend my appreciation to all those who pa rticipated in the DCT definition discussions. I have checked the intent and the wording of the final document submitted by Mr. Ballo on December 16th, 2011, and this document as written meets my appr oval. I trust that this document developed by the DCT subcommittee will meet the approval of all those concerned. WI SH YOU ALL HAPPY HOLIDAY S AND HAPPY, PEACEFUL, HEALTHY AND BRIGHT NEW YEAR 2012. With Kind Regards, V. B. Tendulkar -----Original Message----- From: Timothy Ballo [mailto: tballo@earthjustice.org ] Sent: Friday, December 16, 2011 10:09 PM To: Freeman, Jeremiah (CONTR); ' rick.anderson@faypwc.com '; 'ScottB@LVMetals.com'; ' john.caskey@nema.org '; ' jerry.corkran@cooperindustries.com '; Cymbalsky, John; 'adelaski@standardsASAP.org'; ' Teckman@nwcouncil.org '; ' gbf1@pge.com '; ' carlos.gaytan@ge.com '; ' rgreeson@federalpacific.com '; ' bruce.r.hirsch@bge.com '; ' jhodge@howard.com '; ' mhyland@appanet.org '; ' dave.millure@metglas.com '; ' snadel@aceee.org '; ' wes.patterson@us.abb.com '; ' Eric.Petersen@aksteel.com '; 'Raymond.Polinski@ATImetals.com'; ' artrosenfeld@gmail.com '; ' srosenstock@eei.org '; ' rroy@nrdc.org '; ' robert.saint@nreca.coop '; ' chuck.simmons@pgnmail.com '; ' kwinder@mleainc.com '; ' mwaltner@nrdc.org '; ' jerry.schoen@aksteel.com '; ' Paul.Ryan@hitmet.com '; ' BermanEconomics@gmail.com '; ' ahofmann@publicpower.org ';' pkumar@publicpower.org '; ' bsmith@federalpacific.com '; ' greg.coulter405@gmail.com '; ' jmauer@standardsasap.org '; Cohen, Daniel; 'Aaron.Meyers@CooperIndustries.com'; ' Jim.creevy@nema.org '; ' jrossetti@mlgw.org '; ' cabolduc@lbl.gov '; ' kcoughlin@lbl.gov '; ' brian.coffey@navigant.com '; ' richardparkerdc@gmail.com '; ' mrivest@navigant.com '; ' gjrosenquist@lbl.gov '; ' caitlin.johnson@navigant.com '; ' zhimei.luo@navigant.com '; Marchetti, Emily (CONTR); ' charlied@uus.org '; ' DYoung@energy-solution.com '; ' James.Lass@cleco.com '; ' maheshsampat@bellsouth.net '; ' phopkinson@hvolt.com '; ' matthew.nardotti@navigant.com '; Raba, Jim; Savitz, Maxine (EMAB); ' tpetrosino@carolina.rr.com '; ' chris.brown@cogentpowerinc.com '; ' ted.johnstone@cogentpowerinc.com '; ' frank.guilbault@cogentpowerinc.com '; ' ned.efbrush@gmail.com '; ' dbrender@cda.copper.org '; ' chad.kennedy@us.schneider-electric.com '; ' eduardorobles@eaton.com '; Tendulkar, Vijay (SISC); ' thomas.patzner@us.schneider-electric.com '; ' carlosgsiqueiros@eaton.com '; ' chad.kennedy@schneider-electric.com '; 'Hyland, Mike'; 'Caskey, John'; 'Robert Greeson'; ' thomas.patzner@schne ider-electric.com '; Kennedy, Irene (SISC); ' scott.may@siemens.com '; ' Robert.Carmichael@navigant.com '; ' Christopher.Lau@navigant.com ' Subject: LVDT Working Group on Data Center Transformers All, Attached is the product of the LVDT work group tasked with coming up with a regulatory approach for lo w-voltage dry-type transformers intended for use in data center a pplications. Our intent was to identify a set of criteria capable of distinguishing data center transformers from more typical L VDT units, recognizing the significant variation that exists even within the universe of data center transformers. We settled on three principal criteria: (1) a nameplate designation; (2) a maximum inrush current limit; and (3) any two other design attributes from a check list of potenti al features. The standards recommended are EL0 - retaining the 2010 standard levels as is. The attached presents a short-term fix, but a long term solution to better address these units may need to include an effort to develop a testing protocol that better reflects the unique loading profiles of data center transformers, so that a fu ture efficiency standard for these units can better achieve r eal-world energy savings. Tom Patzner and Vijay Tendulkar dese rve the vast majority of the credit/blame for the content of th e attached. We look forward todiscussing the proposed approach on Tuesday's call. Thanks. -Tim Ballo

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