In this example we compare the life-cycle costs Lucas II 84 street lights with normal incandescent lamps and the most commonly available High Pressure Sodium Street Lights with the same brightness.You can download the calculator as an Excel spreadsheet by
clicking here.
LED Street Light Cost Savings Calculator
Number of lights installed 2000
Price per KWH for electricity (Note 1) 0.20
Average number of hours of use per day 10
....................................................................Normal light Sodium bulb LED light
Number of lights 2,000 2,000 2,000
Price per KWH for electricity 0.20 0.20 0.20
Number of hours of use per day 10 10 10
Maintenance cost per light per year 450 220 0
Average lifetime (hours) of replacement lamp 2,000 16,000 60,000
Watts consumed per lamp 250 150 100
Total electricity cost per year for 2,000 lamps 365,000 219,000 146,000
Total maintenance cost per year for 900,000 440,000 0
Total cost per year (at current prices) 1,265,000 659,000 146,000
Average lifetime for each light (in years) 0.55 4.38 16.44
Total electricity and maintenance costs during lifetime of 2,000 lights (at current prices)
.........................................................................20,794,521 10,832,877 2,400,000
C02 Emissions in tons per year (Note 2) 0.365 0.219 0.146
Comparison of savings in electricity, maintenance, and CO2 emissions.
...........................................................Sodium lamp LED lamp LED lamp
............................................................vs Normal lamp vs Normal lamp vs Sodium lamp
Savings in Euro per year 606,000 1,119,000 513,000
Savings in Euro during total lifetime 9,961,644 18,394,521 8,432,877
Percentage savings 48% 88% 78%
Reduced CO2 emissions (tons per year)0.15 0.22 0.07
CO2 annual reduction percentage 40% 60% 33%
ROI
........................................................................LED vs normal light LED vs Sodium light
Price per LED lamp (single unit) 500 500
Total investment for 2,000 LED Lamps 1,000,000 1,000,000
Total savings per year 1,119,000 513,000
Total savings over lifetime of light 18,394,521 8,432,877
Payback period on investment (years) 0.89 1.95
Note 1. All costs in this example are based on actual 2009 prices in Euro.
Note 2. CO2 emissions are caculated on electricity consumption alone. Reduced vehicle journeys will yield additional emission savings.
Features and Benefits of U-Tron LEDs
1. The right product for the application. Today's LEDs output the illumination necessary to protect our streets, our sky, and our environment.
2. The LEAST costly alternative available today. LED Street Lights deliver the best economic return compared to conventional alternatives considering the total life-cycle costs including installation, maintenance and energy.
3. Consume less energy. Generally, a LED consumes less than 1.15 watts to operate. This low power consumption means you save on your energy costs.
4. No heat output, less CO2 pollution. LEDs can convert almost all the energy used into light, creating a highly efficient light source. In contrast, conventional lighting emits heat and/or light pollution.
5. Long lifetime. An LED can last for up to 100,000 hours. High Power LEDs can last up to 50,000 hours. In comparison the lifespan of an incandescent light is about 1,000 hours and for a halogen light is about 2,000 hours.
6. Environmentally safe. LEDs are made from non-toxic materials - unlike fluorescent lights which contain mercury. Plus they can also be recycled.
7. Durable. No loose or moving parts. They can withstand extreme temperatures and have a high Impact Resistance. Shock-proof since they have no filament and glass envelope - unlike traditional lamps.
8. Easy on the eyes. No Strobe - eliminates the visual fatigue which can be caused by the strobe effect of traditional street lamps
9. Dark-sky Friendly. Brings back the stars for us and for the other creatures of this planet.
10. No Cleaning Necessary. No burned insects accumulate on the surface, so no reduction of light intensity - unlike conventional lamps.
11. No Radiation. No ultraviolet or infer red emissions. LEDs only emit light in the visible spectrum.
