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Federal Register / Vol. 86, No. 106 / Friday, June 4, 2021 / Proposed Rules
While DOEs request for information is not limited to the following issues, DOE is particularly interested in comments, information, and data on the following.
1. Energy Use Analysis The purpose of the energy use analysis is to determine the annual energy consumption of CFLKs at different efficiencies in representative U.S. homes and commercial buildings, and to assess the energy savings potential of increased CFLK efficacy. To develop annual energy use estimates in the January 2016 Final Rule, DOE
multiplied CFLK input power by the hours of use HOU per year. The energy use analysis estimates the range of energy use of CFLKs in the field i.e., as they are actually used by consumers.
81 FR 580, 598.
In the January 2016 Final Rule, to determine the average HOU of CFLKs in the residential sector, DOE used data from various field metering studies of GSL operating hours in the residential sector. To account for any difference in CFLK HOU compared to GSL HOU, DOE considered two factors: 1 The relative HOU for GSLs installed in ceiling light fixtures compared to all GSLs based on data from the Residential Lighting End-Use Consumption Study RLEUCS,4 and 2 the HOU
associated with the specific room types in which CFLKs are installed based on installation location data from a Lawrence Berkeley National Laboratory survey of ceiling fan and CFLK owners LBNL survey 5 and room-specific HOU data from RLEUCS. DOE assumed that CFLK operating hours do not vary by light source technology. DOE
estimated that CFLKs are used an average of 2.0 hours per day in the residential sector. 81 FR 580, 598.
For the commercial sector, the HOU
for CFLKs in commercial buildings were developed using lighting data for 15
commercial building types obtained from the 2010 U.S. Lighting Market The max-tech trial standard level was TSL 4, which DOE estimated would result in 0.070 quads of FFC
energy. 81 FR 580, 620.
4 DNV KEMA Energy and Sustainability and Pacific Northwest National Laboratory. Residential Lighting End-Use Consumption Study: Estimation Framework and Initial Estimates. 2012. Last accessed December 5, 2019. https
www1.eere.energy.gov/buildings/publications/pdfs/
ssl/2012_residential-lighting-study.pdf.
5 Kantner, C.L.S., S.J. Young, S.M. Donovan, and K. Garbesi. Ceiling Fan and Ceiling Fan Light Kit Use in the U.S.Results of a Survey on Amazon Mechanical Turk. 2013. Lawrence Berkeley National Laboratory: Berkeley, CA. Report No.
LBNL6332E. Last accessed June 14, 2016. http
www.escholarship.org/uc/item/3r67c1f9.

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Characterization LMC.6 For each commercial building type presented in the LMC, DOE determined average HOU
based on the fraction of installed lamps utilizing each of the light source technologies typically used in CFLKs and the HOU for each of these light source technologies. A national-average HOU for the commercial sector was then estimated by weighting the buildingspecific HOU for lamps used in CFLKs by the relative floor space of each building type as reported in the 2003
Energy Information Administration EIA Commercial Buildings Energy Consumption Survey CBECS.7 81 FR
580, 598599. DOE calculated that, nationwide, CFLKs are used an average of 10.7 hours per day in the commercial sector see chapter 6 of the January 2016
Final Rule technical support document TSD 8.
In the January 2016 Final Rule TSD, DOE did not consider the industrial sector in the analysis because DOE
determined that CFLKs are designed almost solely for the low-volume i.e.
low air flow ceiling fan market, which are not suitable for the large spaces characteristic of most industrial buildings see chapter 6 of the January 2016 Final Rule TSD.
DOE developed its estimate of the power consumption of CFLKs by scaling the input power and lumen output of the representative lamp units from the engineering analysis to account for the lumen output of CFLKs in the market.
DOE estimated average CFLK lumen output based on a weighted average of CFLK models from data collected in 2014 from in-store shelf surveys and product offerings on the internet. DOE
estimated the market share of each identified CFLK model based on price.
81 FR 580, 599.
In the January 2016 Final Rule, DOE
assumed that the only lighting controls used with CFLKs are dimmers. DOE
further assumed that CFLKs did not have dimmable CFLs due to technical issues associated with CFL dimmability.
DOE estimated CFLKs with dimmable incandescent and LED light sources to be an equal fraction and total 11
percent, and assumed that dimmable CFLKs have an average energy reduction of 30 percent. DOE used these 6 Navigant Consulting, Inc. 2010 U.S. Lighting Market Characterization. 2012. U.S. Department of Energy: Washington, DC Last accessed May 4, 2020. https www1.eere.energy.gov/buildings/
publications/pdfs/ssl/2010-lmc-final-jan-2012.pdf.
7 U.S. Department of EnergyEnergy Information Administration. 2003 Commercial Buildings Energy Consumption Survey CBECS. 2003. Last accessed June 15, 2016. https www.eia.gov/consumption/
commercial/data/2003/index.cfm?view=microdata.
8 Available at https www.regulations.gov/
document/EERE-2012-BT-STD-0045-0121.

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percentages for both the residential and commercial sector in determining the energy consumption. 81 FR 580, 599.
See chapter 6 of the January 2016 Final Rule TSD.
For further details regarding the prior energy use methodology, see chapter 6
of the January 2016 Final Rule TSD.
Issue 1: DOE requests comments on whether the methodology and data sources for determining residential and commercial HOU for CFLKs need to be changed, beyond updating to more recent versions of the sources if updated versions exist.
Issue 2: DOE seeks feedback on its methodology used to determine impact of lighting controls for CFLKs in the January 2016 Final Rule, and whether it is appropriate for future potential analyses.
Issue 3: DOE requests information on the percent of CFLKs that incorporate lighting controls, the types of lighting controls incorporated, and data on how the controls affect typical energy consumption.
2. Shipments DOE develops shipments forecasts of CFLKs to calculate the national impacts of potential amended energy conservation standards on energy consumption. DOE shipment projections are based on available historical data and an analysis of key market drivers for each product.
Historical shipment data are used to build up a product stock and to calibrate the shipments model.
The shipments model projects shipments over a 30-year analysis period for the base case no-newstandards and for all standards cases. In the January 2016 Final Rule, shipments were calculated for the residential and commercial sectors by assigning 95
percent of shipments to the residential sector and 5 percent to the commercial sector. DOE further assumed in its analysis that CFLKs are primarily found on standard and hugger ceiling fans.
DOE also assumed that the distribution of CFLKs by light source technology in the commercial sector is the same as the light source technology distribution in the residential sector. 81 FR 580, 603.
Specifically, the January 2016 Final Rule projected the breakout of shipments across years 2017 through 2020, as shown in Table II.1. See January 2016 Final Rule Ceiling Fan Light Kits Final Rule National Impact Analysis NIA Spreadsheets.9
9 Available at https www.regulations.gov/
document/EERE-2012-BT-STD-0045-0123.

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