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Energy Cost Comparison - 150 Watt Metal Halide vs. 90 Watt Cosmopolis

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ENERGY AND MAINTENANCE COST COMPARISON:
150 Watt Pulse Start Metal Halide vs. 90 Watt Philips CosmoPolis™ Ceramic Metal Halide
150 Watt Pulse Start Metal Halide 90 Watt Philips CosmoPolis™ Lighting System
ENERGY COST COMPARISON
 Number of Fixtures 20
Lamp Wattage 150 90
CRI 70 70
Average Lamp Life (Horizontal) 11,250 Hours 30,000 Hours
Approximate Initial Lumens 12,000 10450
Approximate Mean Lumens 9000 8800
Total System Wattage 190 99
Lumens Per Watt 63 106
Energy Consumed Per Year (kWh) 832 434
Energy Cost Per kWh $0.11
Annual Energy Cost Per Fixture $91.52 $47.74
Estimated Annual Savings Per Fixture $43.78
Years of Operation 5
Estimated Energy Savings $4,378.0
Maintenance Cost Comparison
Number of Fixtures 20
Lamp Cost $35 $85
Estimated Labor Cost Per Fixture $150 $150
Initial Cost $3,035 $3,085
Years of Operation 5
Life Cycles 1.95 0.73
Total Re-Lamping Cost $5,918.25 $2,252.05
Potential Maintenance Savings $3,666.20
Total Potential Savings  $8,044.20


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