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Summary

LED Bollards

Outdoor Bollard (Post) Lighting: LED vs. CFL

Low post, ground-mounted walkway lighting employing LED technology.

Synopsis:

Bollards provide localized lighting for pedestrians on walkways and other public walking areas, such as in parks and campuses. They also function as security lighting for the surrounding area. Conventional light sources used in bollards are high-pressure sodium, metal halide and compact fluorescent lights. Bollards using LED light sources are becoming more widely available, providing equivalent lighting with significantly reduced energy consumption.

Outdoor lighting luminaires employing LED technology are widely available from a number of manufacturers. The U.S. Department of Energy (USDOE) is encouraging research, development and market penetration of the technology, and is providing resources for developing objective, updated information about the technology. Both the DOE LED Lighting Facts program and the Design Lights Consortium Qualified Products List have an LED bollard category.

Energy savings over traditional bollards may be significant — up to 30-75%, depending on design light levels, technology, and controls. LEDs are particularly well suited to operate with automatic controls such as occupancy sensors, which allow light output and power consumption to be reduced during periods of low occupancy. Lamp life could be significantly longer than other systems in use, making LED bollards especially good in hard-to-access locations. The white light is available in a range of color temperatures. Light distribution can be more precisely controlled -- often providing more uniformity -- than other technologies. Additionally, the USDOE predicts continued significant improvement in efficacy and decline in price for LED lighting.

Energy Savings: 40%
Energy Savings Rating: Limited Assessment  What's this?
LevelStatusDescription
1Concept not validatedClaims of energy savings may not be credible due to lack of documentation or validation by unbiased experts.
2Concept validated:An unbiased expert has validated efficiency concepts through technical review and calculations based on engineering principles.
3Limited assessmentAn unbiased expert has measured technology characteristics and factors of energy use through one or more tests in typical applications with a clear baseline.
4Extensive assessmentAdditional testing in relevant applications and environments has increased knowledge of performance across a broad range of products, applications, and system conditions.
5Comprehensive analysisResults of lab and field tests have been used to develop methods for reliable prediction of performance across the range of intended applications.
6Approved measureProtocols for technology application are established and approved.
Simple Payback, New Construction (years): 16.7   What's this?
Simple Payback, Retrofit (years): 50.7   What's this?

Simple Payback is one tool used to estimate the cost-effectiveness of a proposed investment, such as the investment in an energy efficient technology. Simple payback indicates how many years it will take for the initial investment to "pay itself back." The basic formula for calculating a simple payback is:

Simple Payback = Incremental First Cost / Annual Savings

The Incremental Cost is determined by subtracting the Baseline First Cost from the Measure First Cost.

For New Construction, the Baseline First Cost is the cost to purchase the standard practice technology. The Measure First Cost is the cost of the alternative, more energy efficienct technology. Installation costs are not included, as it is assumed that installation costs are approximately the same for the Baseline and the Emerging Technology.

For Retrofit scenarios, the Baseline First Cost is $0, since the baseline scenario is to leave the existing equipment in place. The Emerging Technology First Cost is the Measure First Cost plus Installation Cost (the cost of the replacement technology, plus the labor cost to install it). Retrofit scenarios generally have a higher First Cost and longer Simple Paybacks than New Construction scenarios.

Simple Paybacks are called "simple" because they do not include details such as the time value of money or inflation, and often do not include operations and maintenance (O&M) costs or end-of-life disposal costs. However, they can still provide a powerful tool for a quick assessment of a proposed measure. These paybacks are rough estimates based upon best available data, and should be treated with caution. For major financial decisions, it is suggested that a full Lifecycle Cost Analysis be performed which includes the unique details of your situation.

The energy savings estimates are based upon an electric rate of $.09/kWh, and are calculated by comparing the range of estimated energy savings to the baseline energy use. For most technologies, this results in "Typical," "Fast" and "Slow" payback estimates, corresponding with the "Typical," "High" and "Low" estimates of energy savings, respectively.

Status:

Details

LED Bollards

Outdoor Bollard (Post) Lighting: LED vs. CFL

Low post, ground-mounted walkway lighting employing LED technology.
Item ID: 396
Sector: Commercial
Energy System: Lighting--Fixtures: Outdoor

Synopsis:

Bollards provide localized lighting for pedestrians on walkways and other public walking areas, such as in parks and campuses. They also function as security lighting for the surrounding area. Conventional light sources used in bollards are high-pressure sodium, metal halide and compact fluorescent lights. Bollards using LED light sources are becoming more widely available, providing equivalent lighting with significantly reduced energy consumption.

Outdoor lighting luminaires employing LED technology are widely available from a number of manufacturers. The U.S. Department of Energy (USDOE) is encouraging research, development and market penetration of the technology, and is providing resources for developing objective, updated information about the technology. Both the DOE LED Lighting Facts program and the Design Lights Consortium Qualified Products List have an LED bollard category.

Energy savings over traditional bollards may be significant — up to 30-75%, depending on design light levels, technology, and controls. LEDs are particularly well suited to operate with automatic controls such as occupancy sensors, which allow light output and power consumption to be reduced during periods of low occupancy. Lamp life could be significantly longer than other systems in use, making LED bollards especially good in hard-to-access locations. The white light is available in a range of color temperatures. Light distribution can be more precisely controlled -- often providing more uniformity -- than other technologies. Additionally, the USDOE predicts continued significant improvement in efficacy and decline in price for LED lighting.

Baseline Example:

Baseline Description: 68.5 W average of a two typical bollard types: a 42 W CFL lamp and a 70 W HPS (95 W actual).
Baseline Energy Use: 300 kWh per year per unit

Comments:

The baseline selected for determining energy savings is an average of two typical bollard types: a 42 W CFL lamp and a 70 W HPS (95 W actual). The installed stock of bollards also includes higher wattage HPS lamps, halogen lamps, and incandescent lamps, however no data could be found on the distribution of installed lamp types.  Assuming 68.5 W * 12 hours/day * 365 days / 1,000 W/kW = 300 kWh/yr.

Manufacturer's Energy Savings Claims: Currently no data available.
Best Estimate of Energy Savings:

"Typical" Savings: 40%
Energy Savings Reliability: 3 - Limited Assessment

Comments:

Thirty to seventy-five percent savings possible.

Energy Use of Emerging Technology:
180 kWh per unit per year What's this?

Energy Use of an Emerging Technology is based upon the following algorithm.

Baseline Energy Use - (Baseline Energy Use * Best Estimate of Energy Savings (either Typical savings OR the high range of savings.))

Technical Potential:
Units: unit
Potential number of units replaced by this technology: 200,000
Comments:

Ten percent of flood lighting units based on Navigant's 2011 report for the U.S. DOE SSL Program, "Energy Savings Estimates of Light Emitting Diodes in Niche Lighting Applications." (Navigant , 2011)
   

Regional Technical Potential:
0.02 TWh per year
3 aMW
What's this?

Regional Technical Potential of an Emerging Technology is calculated as follows:

Baseline Energy Use * Estimate of Energy Savings (either Typical savings OR the high range of savings) * Technical Potential (potential number of units replaced by the Emerging Technology)

First Cost:

Installed first cost per: unit
Emerging Technology Unit Cost (Equipment Only): $480.00
Emerging Technology Installation Cost (Labor, Disposal, Etc.): $68.00
Baseline Technology Unit Cost (Equipment Only): $300.00

Comments:

Costs for bollards were developed from an Internet pricing review.  The price premium for LED bollards as compared to HPS and CFL bollards is about 60%, although prices for LEDs are expected to continue to decline.

Labor costs to replace an existing bollard with a new LED bollard are estimated at $68, assuming 0.75 hr at $90/hr.

Cost Effectiveness:

Simple payback, new construction (years): 16.7

Simple payback, retrofit (years): 50.7

What's this?

Cost Effectiveness is calculated using baseline energy use, best estimate of typical energy savings, and first cost. It does not account for factors such as impacts on O&M costs (which could be significant if product life is greatly extended) or savings of non-electric fuels such as natural gas. Actual overall cost effectiveness could be significantly different based on these other factors.

Reference and Citations:

DOE, 08/14/2014. LED Lighting Facts
U.S. Department of Energy

Navigant , 01/01/2011. Energy Savings Estimates of Light Emitting Diodes in Niche Lighting Applications
U.S. Department of Energy, Building Technologies Program

EERE, 08/24/2011. New and Underutilized Technology: Exterior LED/Solid State Lighting
Energy Efficiency & Renewable Energy

PNNL, 03/01/2008. Demonstration Assessment of Light Emitting Diode (LED) Walkway Lighting, Host Site: Federal Aviation Administration, William J. Hughes Technical Center, Atlantic City, New Jersey
U.S. Department of Energy

DLC, 01/01/2013. DesignLights Consortium Qualified Products List
DesignLights Consortium, Northeast Energy Efficiency Partnerships, Inc.

DOE, 10/02/2013. Solid State Lighting Program
U.S. Department of Energy, Office of Energy Efficiency & Renewable Energy

NPS, 01/01/2012. Bear Valley Visitor Center Lighting Retrofit Guide for National Parks
National Park Service & the California Lighting Technology Center at UC Davis

SDG&E, 03/16/2012. LED Pathway Bollard
San Diego Gas & Electric’s (SDG&E®) Emerging Technologies Program

Rank & Scores

LED Bollards

There is no TAG available for this technology.
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