12 light System | 75w Halogen | LEDs | | | | Annual Operating Cost (10 Hours per Night) | $361.35 | $7.23 | Bulb Replacement (@ $8 per bulb) | $140.00 | $0.00 | Total Annual Operating cost | $501.35 | $7.23 | | | | 100 Thousand Hours (27.5 Years) | $13,787.13 | $198.83 |
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| System Cost | $2,400.00 | $3,771.00 | | | | Annual Savings | | | Dollars | $494.12 | | Electricity (kwh) | 3,217.3 | | CO2 emisions (kgs) | 3,033.9 | | SO2 emisions (kgs) | 12.7 | | NOx emisions (kgs) | 5.6 | | | | | Savings over 27.5 years | | | Dollars | $13,588.30 | | Electricity (kwh) | 92,144.5 | | CO2 emisions (kgs) | 85,188.3 | | SO2 emisions (kgs) | 350.5 | | NOx emisions (kgs) | 153.1 | |
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