UFC 3-530-01
22 August 2006
APPENDIX D
Economic Analysis of Parking Lighting Example
D-1 The following spreadsheet shows all of the values assumed for the economic
example shown on page 7-4.
Annual Operating Hours =
4380 (12 hours per day average)
Analysis Period =
10 years
Electric Energy =
||content||
.06 per kWhHPS Luminare Cost =
||content||
,500.00
HPS lamp cost =
.00
HPS ballast cost =
.00
MH Luminaire Cost =
||content||
,500.00
MH lamp cost =
.00
MH ballast cost =
.00
IND Luminaire Cost =
||content||
,500.00
Induction lamp & power supply
cost =
0.00
Equipment Cost
Luminaire
Equipment
Quantity
Cost
Total Cost
Light Type
High Pressure Sodium
16
||content||
,570
,120
Metal Halide
16
||content||
,580
,280
Induction
16
||content||
,850
,600
Energy Cost
Energy Cost
for Analysis
Luminaire
Annual
Annual
Annual
Quantity
Input Watts kWh
Energy Cost
Savings
Period
Light Type
250 watt High Pressure Sodium
16
295
20673.6
||content||
,240
,404
150 watt Metal Halide
16
185
12965
8
,779
,625
165 watt Induction
16
165
11563.2
4
,466
,938
Lamp Replacement
Lamp repl.
Labor
Cost for
Group
group
Cost
# lamps
Average
analysis
Luminaire
Lamp Life
relamp
Effective Life relampings in replaced in
(each
Lamp Cost
Annual
Light Type
Quantity
(hours)
factor
(hours)
analysis period analysis period (each)
lamp)*
Savings
period
High Pressure Sodium
16
24000
0.7
16800
2
32
.00
.00
,240
Metal Halide
16
10000
0.7
7000
6
96
.00
.00
,680
-,440
Induction
16
100000
0.7
70000
0
0
0.00
.00
||content||
,240
Summary of Total Cost for Analysis Period
Total Cost for Savings for
Average
Analysis
Luminaire
Analysis
Annual
Quantity
Equipment
Energy
Replacement Period
Period
Savings
Light Type
High Pressure Sodium
16
,120
,404
,240
,764
Metal Halide
16
,280
,779
,680
,739
-5
-
Induction
16
,600
,938
||content||
,538
,226
3
* Assumed Labor Cost: per lamp
D-1
Previous Page
