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Pulse Start - Manufacturing Highbay (ASHRAE/IESNA 90.1-2001
Allowance: 3.0 watts/sq.ft.)
Assumptions: Room Height =
30', Mounting Height = 28', Work Plane Height = 2.5', Reflectances =
50/30/10, LLD = 0.70, LDD =
0.95. All rooms were approximately 100' x 100' (the exact size was
determined by what size the room had to be for the distance from the
wall to the first row/column of luminaires to be 1/2 of the spacing). So
if the spacing was 12'x12' then the room was 108x108 (108 = 8x12 + 2x6).
The calculations were always done on a 1'x1' grid over the entire space.
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Version |
Lamp(s) |
Ballast |
Ballast Factor |
Spacing (Feet) |
Average Illuminance (fc)* |
Lighting Power Density* (Watts Per Sq.Ft.) |
% Below Allowance |
Tax Deduction** ($/Sq.Ft.) |
Tax Deduction** ($/Luminaire) |
|
THS |
400M |
SCWA |
1.00 |
15x15 |
89.5 |
2.01 |
33.0% |
$0.46 |
$103.50 |
|
THS |
400M |
LLRPSL |
1.00 |
15x15 |
89.5 |
1.89 |
37.0% |
$0.54 |
$103.50 |
|
THS |
350M |
SCWA |
1.00 |
15x15 |
75.0 |
1.78 |
40.7% |
$0.60 |
$121.50 |
|
THS |
350M |
LLRPSL |
1.00 |
15x15 |
75.0 |
1.67 |
44.3% |
$0.60 |
$135.00 |
|
THS |
320M |
SCWA |
1.00 |
15x15 |
68.2 |
1.64 |
45.3% |
$0.60 |
$135.00 |
|
THS |
320M |
LLRPSL |
1.00 |
15x15 |
68.2 |
1.52 |
49.3% |
$0.60 |
$135.00 |
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|
THS |
400M |
SCWA |
1.00 |
20x20 |
49.7 |
1.13 |
62.3% |
$0.60 |
$240.00 |
|
THS |
400M |
LLRPSL |
1.00 |
20x20 |
49.7 |
1.06 |
64.7% |
$0.60 |
$240.00 |
|
THS |
350M |
SCWA |
1.00 |
20x20 |
41.6 |
1.00 |
66.7% |
$0.60 |
$240.00 |
|
THS |
350M |
LLRPSL |
1.00 |
20x20 |
41.6 |
0.94 |
68.7% |
$0.60 |
$240.00 |
|
THS |
320M |
SCWA |
1.00 |
20x20 |
37.8 |
0.92 |
69.3% |
$0.60 |
$240.00 |
|
THS |
320M |
LLRPSL |
1.00 |
20x20 |
37.8 |
0.86 |
71.3% |
$0.60 |
$240.00 |
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|
THS |
400M |
SCWA |
1.00 |
25x25 |
32.0 |
0.72 |
76.0% |
$0.60 |
$375.00 |
|
THS |
400M |
LLRPSL |
1.00 |
25x25 |
32.0 |
0.68 |
77.3% |
$0.60 |
$375.00 |
|
THS |
350M |
SCWA |
1.00 |
25x25 |
26.8 |
0.64 |
78.7% |
$0.60 |
$375.00 |
|
THS |
350M |
LLRPSL |
1.00 |
25x25 |
26.8 |
0.60 |
80.0% |
$0.60 |
$375.00 |
|
THS |
320M |
SCWA |
1.00 |
25x25 |
24.4 |
0.59 |
80.3% |
$0.60 |
$375.00 |
|
THS |
320M |
LLRPSL |
1.00 |
25x25 |
24.4 |
0.55 |
81.7% |
$0.60 |
$375.00 |
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* º
Illuminance and LPD values are for a typical
room. Results for other, specific rooms will vary somewhat.
** º
All deduction estimates are subject
to DOE/IRS rules and a cap based on actual expenditures. Please contact your tax advisor to determine
the specific tax treatment appropriate for your property. |