6

- i CHAPTER 6. ENERGY USE CHARACTER IZATION

TABLE OF CONTENTS

6.1 PURPOSE OF THE DOCUM ENT

................................ ................................ ................. 6

- 1 6.2 METAL HALIDE LAMP FI XTURE SYSTEM OPERATI NG HOURS

....................... 6

- 1 6.3 RESULTS OF THE ENERG Y USE CHARACTERIZATI ON

................................ ...... 6

- 4 REFERENCES

................................ ................................ ................................ ............................ 6

- 6

LIST OF TABLES

Table 6.2.1 Average Annual Metal Halide Lamp Fixture Operating Hours by Sector

............... 6

- 2 Table 6.3.1 70W Equipment Class Input Powers and Annual Energy Consumption

.................. 6

- 4 Table 6.3.2 250W Equipment Class Input Powers and Annual Energy Consumption

................ 6

- 5 Table 6.3.3 400W Equipment Class Input Powers and Annual Energy Consumption

................ 6

- 5 Table 6. 3.4 1000W Equipment Class Input Powers and Annual Energy Consumption

.............. 6

- 5

LIST OF FIGURES

Figure 6.2.1 Commercial Sector Annual Operating Hour Distribution by Building Type

.......... 6

- 3 Figure 6.2.2 Industrial Sector Annual Operating Hour Distr ibution by Building Type

.............. 6

- 3 Figure 6.2.3 Outdoor Stationary Sector Annual Operating Hour Distribution by Installation Type

................................ ................................ ................................ .............................. 6

- 46

- 1 CHAPTER 6. ENERGY USE CHARACTERIZATION

6.1 PURPOSE OF THE DOCUMENT

This chapter presents the methodology the U.S. Department of Energy (DOE) follows to estimate the annual energy consumption of the metal halide (MH) system designs DOE considers in the MH lamp fixture (MHLF) rulemaking analys e s. MH lamps will not be regulated under the proposed MHLF rulemaking , which instead focuses on the ballasts within a fixture. H owever, the input power of the complete metal halide lamp fixture must be considered for the energy use analysis. The results of this analysis, which represent typical energy consumption in the field, are critical inputs to the life

- cycle cost (LCC) and payback period (PBP) analys e s ( preliminary technical support document [ TSD ] c hapter 8 ) and the national impact analysis (NIA ; preliminar y TSD c hapter 10 ) . DOE requires information on annual energy consumption to determine the potential energy and operating cost savings to consumers from the use of more efficient equipment.

DOE determines the annual energy consumption of the metal halide lamp fixtures using information on their measured input power ( i.e. , the rate of energy they consume) and the way consumers use them ( i.e. , operating hours per year). The engineering analysis ( preliminary TSD

c hapter 5) discusses the input pow er ratings of metal halide lamp fixture s in representative fixtures

. The following sections discuss the inputs and calculations DOE uses to develop annual operating hours and annual energy consumption for the equipment considered in this analysis.

6.2 M ETAL H A LIDE LAMP FIXTURE SYSTEM OPERATING HOUR S

To characterize the country’s average use of metal halide lamp fixture s f or a typical year, DOE develops annual operating hour s by sector

. For the LCC, DOE account s for variability in operating hours by developing a distribution of operating hours for the LCC spreadsheet. The operating hour distributions capture variation across nine census divisions (New England, Middle Atlantic, East North Central, West North Central, South Atlantic, East South Central, West South Central, Mountain, and Pacific) and large s tates (California, Florida, New York, and Texas) , building types

, and metal halide lamp fixture s for three sectors (commercial

, industrial

, and outdoor stationary )

. In conjunction w ith data from the U.S. Lighting Market Characterization ( LMC ) Volume 1

, 1 DOE uses data from the Energy Information Administration (EIA) 2003 Commercial Building Energy Survey ( CBECS )

, 2 and 20 06 Manufacturer Energy Consumption Survey (MECS )

. 3 These EIA studies provide information on the distribution of U.S. buildings by building type and census division. The LMC, which is based on thousands of building audits and surveys, provides national

- level data on annual operating hours by building type a nd fixture type for all sectors. These operating hours are divided by application for the commercial

, industrial

, and outdoor stationary sectors.

For the commercial sector, DOE use s CB ECS building data and LMC commercial sector operating hour data to develop a distribution of annual operating hours for metal halide lamp fixture s

. DOE aggregates LMC annual operating hour data by application to develop average6

- 2 annual operating hours by building type. Once the LCC model selects a building, DOE associa tes the aggregated LMC annual operating hour average with the building type selected. DOE chose to aggregate LMC operating hour data to the building level for the commercial and industrial sectors because it more closely represents the impact on consumers.

To develop a distribution of annual operating hours in the industrial sector, DOE use s an approach consistent with that used for the commercial sector. The 200 6 MECS data indicates the probability that a certain building type exists. DOE aggregates LMC an nual operating hour data by industrial application to develop average annual operating hours by building type. Once the model selects a building, DOE associates the aggregated LMC operating hour average with the building type selected.

For the outdoor sta tionary sector, DOE uses LMC operating hour data to develop a distribution of annual operating hours for metal halide lamp fixture s

. LMC data for outdoor stationary sources is aggregated by installation type ( e.g. , u nlike the commercial and industrial
sect ors, DOE aggregates LMC annual operating hour data by application to develop average annual operating hours by installation type ) . Once the LCC model selects a building, DOE associates the aggregated LMC annual operating hour average with the installation type selected. Table 6.2

. 1 summarizes the weighted average annual operating hours per sector.

Table 6.2

. 1 Average Annual M etal Halide Lamp Fixture Operating Hours by Sector
Sector Average Annual Operating Hours hr/yr Commercial 3,720

Industrial 4,748 Outdoor Stationary 4,098

Figure 6.2

. 1 display s the annual operating hours DOE use s for metal halide lamp fixture s in the commercial sector. DOE uses these annual operating hours in the LCC calculation s

.6

- 3 Figure 6.2

. 1 Commercial Sector Annual Operating Hour Distribution by Building Type

Figure 6.2

. 2 display s the annual operating hour s for metal halide lamp fixture s oper ating in the industrial sector. DOE uses this distribution of annual operating hours in the LCC calculation s

.

Figure 6.2

. 2 Industrial Sector Annual Operating Hour Distribution by Building Type 0 1,000 2,000 3,000 4,000 5,000 6,000Hours of Operation per Year

Building Type Commercial Sector Operating Hours by Building Type

0 1,000 2,000 3,000 4,000 5,000 6,000 7,000 8,000Hours of Operation per Year

Building Type Industrial Sector Operating Hours by Building Type6

- 4 Figure 6.2

. 3 display s the annual operating hour s for metal halide lamp fixture s operating in the outdoor stationary sector. DOE uses this distribution of annual operating hours in the LCC

c alculation.

Figure 6.2

. 3 Outdoor Stationary Sector Annual Operating Hour Distribution by Installation Type

6.3 RESULTS OF THE ENERG Y USE CHARACTERIZATION

This section presents the annual energy use estimates for metal halide lamp fixture system designs . DOE calculates the annual energy consumption using annual operating hours and measured input power rating estimates. DOE uses the annual energy consumption results in the LCC and PBP analys e s and the NIA to calculate the operating cost of systems and to estimate the potential energy savings of candidate standard level s ( CS L s)

.

Table 6.3

. 1 through Table 6.3

. 4 detail (1) the measured input power ratings for all the metal halide lamp fixture s DOE assesses in the LCC and PBP analysis for each equipment class ; and (2) average annual energy consumption per fixture based on measured input power, using the U.S. weighted average of annual operating hours in each sector

.

Table 6.3

. 1 70W Equipment Class Input Powers and Annual Energy Consumption
CSL Input Power

w atts Annual Energy Consumption kWh /yr Baseline 96.8 387.8 1 92.0 368.4 2 78.4 313.8 3 76.8 307.6 0 500 1,000 1,500 2,000 2,500 3,000 3,500 4,000 4,500 5,000

Billboard 8 Billboard 30 Billboard/Bulletin Street Lighting Parking LotsHours of Operation per Year

Installation Type Outdoor Stationary Operating Hours by Installation Type6

- 5 Table 6.3

. 2 250W Equipment Class Input Powers and Annual Energy Consumption
CSL Input Power

w atts Annual Energy Consumption kWh /yr Baseline 284.1 1

, 160.8 1 276.2 1

, 128.7 2 273.2 1

, 116.4 3 268.1 1

, 095.4 4 267.1 1

, 091.3

Table 6.3

. 3 40 0W Equipment Class Input Powers and Annual Energy Consumption
CSL Input Power

w atts Annual Energy Consumption kWh /yr Baseline 454.5 1

, 857.2 1 444.4 1

, 815.9 2 436.2 1

, 782.3 3 431.5 1

, 763.0 4 426.0 1

, 740.5

Table 6.3

. 4 1000 W Equipment Class Input Powers and Annual Energy Consumption
CSL Input Power

w atts Annual Energy Consumption kWh /yr Baseline 1088.1 4

, 577.8 1 1079.9 4

, 543.2 2 1071.8 4

, 509.16

- 6 REFERENCES

1

. U.S. Department of Energy

– Office of Energy Efficiency and Renewable Energy. Energy Conservation Program for Consumer Products: Final Report: U.S. Lighting Market Characterization, Volume I: National Lighting Inventory and Energy Consumption Estimate. September 2002. Washington, D.C.

< http://apps1.eere.energy.gov/buildings/publications/pdfs/ssl/lmc_vol1_final.pdf >

2

. U.S. Department of Energy

– Energy Information Administration. Commercial Building Energy Consumption Survey: Micro

- level Dat a, File 2 Building Activities, Special Measures of Size, and Multi

- building Facilities. 2003. Washington, D.C.

< http://www.eia.gov/emeu/cbecs/cbecs2003/public_use_2 003/cbecs_pudata2003.html >

3

. U.S. Department of Energy

– Energy Information Administration. Manufacturing Energy Consumption Survey, Table 1.4: Number of Establishments Using Energy Consumed for All Purpose. 200 6

. Washington, D.C.

< http://www.eia.doe.gov/emeu/mecs/mecs2006/2006tables.html >