LED Streetlight Conversion

by Angelo Piga | Apr 03, 2013
| 1 Comment

Summary:

Convert residential streetlights from high-pressure sodium lights to light emitting diodes, or LEDs. This project would help to decrease energy consumption and reduce costs for the city.

Our neighbors Brooklyn Park, MN made this conversion. They would be good close resource to network with for the project.

The following information was pulled from: http://www.seattle.gov/light/streetlight/led/

Benefits of LED Conversion Include:
Approximately 48 to 62 percent lower energy consumption
• High-pressure sodium luminaires, most installed in the mid-1980s, are at the end of their useful lives and failing. LEDs will provide better service reliability and lower maintenance costs.
• Reduction in greenhouse gas emissions:
o In manufacturing
o Fewer service vehicle trips for repairs will mean a reduction of about 20,000 tons of carbon each year
• Replacement of luminaires with LED fixtures will provide three to four times longer field life than high-pressure sodium
• LEDs are not affected by truck and roadway structure vibration
• Better light quality (whiter/cooler color rendering)
• Light quality improves safety because of depth of field and peripheral vision enhancements without distorting color

About You

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About You

First Name

Angelo

Last Name

Piga

City

Saint Paul

County

USA

Country

United States, MN, Ramsey County

Website (if you have one)

Names of others who helped contribute to my idea

How did you hear about the Forever Saint Paul Challenge?

About Your Organization (if applicable)

Organization Name (if applicable)

Organization Website

Organization Phone

Organization Address

City

Organization Country

United States

Your idea

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Title of your idea

LED Streetlight Conversion

Give us the highlights of your idea for making Saint Paul great (2,000 characters maximum or approx. 250 words)

Convert residential streetlights from high-pressure sodium lights to light emitting diodes, or LEDs. This project would help to decrease energy consumption and reduce costs for the city.
Our neighbors Brooklyn Park, MN made this conversion. They would be good close resource to network with for the project.
The following information was pulled from: http://www.seattle.gov/light/streetlight/led/
Benefits of LED Conversion Include:
Approximately 48 to 62 percent lower energy consumption
• High-pressure sodium luminaires, most installed in the mid-1980s, are at the end of their useful lives and failing. LEDs will provide better service reliability and lower maintenance costs.
• Reduction in greenhouse gas emissions:
o In manufacturing
o Fewer service vehicle trips for repairs will mean a reduction of about 20,000 tons of carbon each year
• Replacement of luminaires with LED fixtures will provide three to four times longer field life than high-pressure sodium
• LEDs are not affected by truck and roadway structure vibration
• Better light quality (whiter/cooler color rendering)
• Light quality improves safety because of depth of field and peripheral vision enhancements without distorting color

Website address (if applicable)

Innovation

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What makes your idea different or unexpected? (4000 characters maximum or approx. 500 words)

It is new technology that can provide innovation. The impact can save the city money. Long lasting LED lights can provide sustainability.

Impact

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This Entry is about (Issues)

How will your idea make a difference in Saint Paul? (4000 characters maximum or approx. 500 words)

Example: Replacing (1,000) 100W HPS Cobra-head Street Lights with $0.10 hWh energy rate.

Initial Cost: $215,000
• New LED luminaires = $230 X 1,000 = $230,000
• Installation = $50 X 1,000 = $50,000
• Bid = $10,000
• Utility rebates = $75 X 1,000 = ($75,000)

Annual Savings: $55,000
• Energy Savings = 1,000 street lights X 4,000 hours per year X 75W per luminaire saving X .10 kWh rate = $30,000
• Maintenance Savings = 1,000 street lights X $25 per fixture per year savings = $25,000.

Payback = $215,000/$55,000 = 3.91 years

Sustainability

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Why do you think people will recognize or remember your idea after it comes to life? How might it inspire others to do something similar in their community? (4000 characters maximum or approx. 500 words)

Additional resources for this competition are available for download here:

streetlights_conversion.doc37 KB