keyised Life Cycle Analysis for Fluorescent Lamp Ballasts

The following Life Cycle Analysis is a revision of the Chapter 4 LCC analysis from the February

1996 "Draft Report on Potential Impact of Possible Energy Efficiency Levels for Fluorescent

Lamp Ballasts". Revisions to the analysis came from the June 1996 workshop and stakeholder

interviews. The following information describes the changes made to inputs for the

engineering/economic analysis for fluorescent lamp ballasts. For the engineering analysis,'the old

values from the 1996 draft, the new values for the 1997 draft, and their sources are listed.

Engineering/Economic Analysis

1. Ballast Lifetime

Old Values: 4 foot, 33,000 hours

-8-foot, 36,000 hours

Source: LRI 1995 survey

New Value: 45,000 hours for all ballasts

Source: Comments by ACEEE and NRDC (July 19, 1996 letter to DOE, comment # 5,

June 20, 1995 workshop) and by Bob Wisbey, Advance, at. the June 20, 1995

workshop.

2. Ballast End-User Price

Old Values: See engineering tables (1993 prices), F96T12HO CC price was $72.37.

Source: Aggregated by LBNL from LRI 1995 survey..

New Value: F96T12HO CC ballast price is changed to $49.40. No other changes.

Source: Letter from L. Coulson, NEMA to Isaac Turiel, LBNL, dated June 6, 1996.

Note: Gough and Associates are performing a survey to provide 1996 prices.

Lamp Life

Old Values: 4-foot lamps with EEM, CC and ERS ballasts, 19000 hours

-4-foot (T8) lamps with instant start ballasts, 14000 hours

8-foot lamps, 11000 hours

Source: Weighted average of group and, spot relamping times '

' Spot relamping times are rated lamp lives from manufacturers ' literature. Group relamping times are 70 percent

of rated lamp lives, per NALMCO. Weights are from LRI 1995 survey.

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New values: Lamps with cathode cutout ballasts (CC) have 15% average lamp life reduction (4-

foot, 16150 hours, 8-foot; 9350 hours)

Source : NEMA 1996. Comment #9 submitted on Proposed Rulemaking for Fluorescent

Ballasts by L. Coulson, NEMA, Rosslyn, VA, July 19, 1996.

Input Wattage

Old Values: See old engineering tables

Source: LBNL calculations based on NEMA wattage and BEF data

New Values: See new engineering tables, mostly minor changes (<1%) with 1 exception (see 5)

Source: Corrections based on NEMA input, letter of June 6 from L. Coulson to I. Turiel.

5. Ballast Factor

Old Values: See draft report, page 3-7

Source: Advanced Lighting Guidelines, NEMA Standard LE-5

New Values: For F96T12/RE and F96T12/HO/RE product classes, EEM BF is corrected to

0.95 (from 0.88).

Source: Corrected per input from B. Wisbey, Advance in telephone call to 1. Turiel, June of

1996.

Note: Correction also changes the calculated input wattage for these ballasts.

Annual Lighting Hours

Old Values: 4-foot (commercial sector), 4230

8-foot (commercial sector), 4170

8-foot HO (industrial sector), 5050

Source: Hours from Xenergy database weighted by LRI 1995 survey building type weights.

New Values: 4-foot (commercial sector), 3600

8-foot (commercial sector), 3600

8-foot HO (industrial sector), 5000

Source: Hours from Xenergy database weighted by CBECS 1992 survey building type

weights.

Note: These hours now match those used as input to the COMMEND model.

7. Electricity Prices

Old Values: Commercial sector, $0.075; industrial sector, $0.05

Source: Annual Energy Outlook 1995, year 2000 electricity prices, in $1994

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New Values: Commercial sector, $0.075; industrial sector, $0.048

Source: Annual Energy Outlook 1997, year 2001 electricity prices, in $1995

Note: Coincidentally, the commercial sector price is unchanged.

8. Labor Rate

Old Values: Electrician, $42.10/hour; electrician's helper, $29.35/hour.

Source: Means Construction Estimator 1994

New Value: Electrician, $50.00/hour; electrician's helper, $29.35/hour

Source: National Construction Estimator, 1995

Note: In updating to 1995 labor rates, staff found the new source to be more accurate

(and consistent with the HID analysis). The electrician's helper labor rate was

consistent with this source and therefore required no change.

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