1 Franklin, Peggy
From: Petrolati, Victor [Victor.Petrolati@ee.doe.gov] Sent: Tuesday, July 28, 2009 3:30 PM To: Franklin, Peggy Subject: FW: BCEPS Comment Period for Framework Document

FYI
Victor Petrolati General Engineer Office of Building Technologies (EE-2J) Department of Energy 202-586-4549 victor.petrolati@ee.doe.gov

From: Petrolati, Victor Sent: Wednesday, July 22, 2009 9:34 AM Subject: BCEPS Comment Period for Framework Document Dear Battery Charger and Extern al Power Supply Stakeholder: For those of you who were in attendance, thank you for pa rticipating in the U.S. De partment of Energy’s public meeting on Thursday, July 16, 2009 to review the Depart ment’s Rulemaking Framework Document for Battery Chargers and External Power Supplies (BCEPS). DOE welcomes all comments, data, and information regarding BC and EPS energy conservation standards. Please note that DOE has extended the deadline to submit comments to Monday, July 27, 2009. However, due to the tight timeline under our statute, DOE cannot extend the deadline further for comments that will be addressed in the BCEPS Preliminary Analysis, as some stakeholders requested . Nonetheless, to the extent possible, DOE will attempt to address in the BCEPS Preliminary Analysis any a dditional comments it receives beyond the deadline. Any comments that DOE cannot address in the Preliminary Analysis will be addressed in the BCEPS Notice of Proposed Rulemaking (NOPR). DOE encourages stakeholder comment by the July 27 deadline for Items for Comment of particular urgency:

· Item 4 DOE seeks comments on including DC powered battery chargers within the scope of the BC standards rulemaking.

· Item 10 DOE welcomes comment on additional functionality provided by some wall adapters for battery chargers that may impede their ability to meet the same standards as comparable wall adapters for other applications (considered EPSs).

· Item 9 DOE seeks comments on the four approaches to interpreting the BC and EPS definitions to resolve ambiguities in the scope of the analyses.

· Item 22 DOE seeks comments on how DOE should amend its BC test procedure to measure energy consumption in active mode.2 · Additional Item The Department invites stakeholder comme nts on directly measuring charger output energy versus battery output energy.

· Item 23 DOE seeks comments on BC product class divisi ons, including whether ba ttery voltage is the appropriate product classification cr iterion, and/or whether DOE should take into account other factors, such as charge rate, battery capacity, or battery chemistry.

· Item 37 DOE invites manufacturers to work with DOE in the interviews to help develop aggregated curves of manufacturer selling price versus e fficiency for the various representative units. For your convenience, instructions on how to submit comments, as well as copi es of the presentation slides and handouts, are available online at the following link: http://www1.eere.energy.gov/buildings/appliance_standards/residen tial/battery_external_framework_public_mt g.html
The Framework Document and Draft Tec hnical Report can be downloaded from: http://www1.eere.energy.gov/buildings/appliance_standards/resi dential/battery_e xternal_std_2008.html
Vic
Victor Petrolati General Engineer Office of Building Technologies (EE-2J) Department of Energy 202-586-4549 victor.petrolati@ee.doe.gov