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1b. City Code Amendment - LED Lights CITY OF CHANHASSEN 7700 Market Boulevard PO Box 147 Chanhassen, MN 55317 Administration Phone: 952.227.1100 Fax: 952.227.1110 Building Inspections Phone: 952.227.1180 Fax: 952.227.1190 Engineering Phone: 952.227.1160 Fax: 952.227.1170 Finance Phone: 952.227.1140 Fax: 952.227.1110 Park & Recreation Phone: 952.227.1120 Fax: 952.227.1110 Recreation Center 2310 Coulter Boulevard Phone: 952.227.1400 Fax: 952.227.1404 Planning & . Natural Resources Phone: 952.227.1130 Fax: 952.227.1110 Public Works 1591 Park Road Phone: 952.227.1300 Fax: 952.227.1310 Senior Center Phone: 952.227.1125 Fax: 952.227.1110 Web Site www.ci.chanhassen.mn.us 1-b MEMORANDUM TO: Planning Commission FROM: Sharmeen Al-Jaff, Senior Planner O~, DA TE: June 16,2009 SUBJ: City Code Amendmentsto Chapter 20 to allow Light-Emitting Diode (LED) Lights BACKGROUND On April 7, 2009, staff presented an issue paper to the Planning Commission addressing Light-Emitting Diode (LED) Lights. This issue was subsequently reviewed by the City Council on May 26, 2009 (see attachment #1). Staff explained that there have been developers requesting LED lights. The technology is moving toward LED. City code allows high-pressure sodium (HPS) light fixtures only. The city code needs to be updated to accommodate this technology. The use of LED lights should be added to the type of light permitted in the City. PROPOSED ORDINANCE AMENDMENTS (All new language is in bold.) Sec. 20-913 Lighting (c) Lighting fixtures on poles shall comply with the following: (1) All fixtures must be shielded, high pressure sodium or Light-Emitting Diode (LED) with a total cutoff angle equal to or less than 90 degrees. RECOMMENDA TION Staff recommends the Planning Commission recommend approval of the attached ordinance amending Chapter 20. ATTACHMENTS 1. City Council Work Session Memo dated May 26,2009. 2. Proposed Ordinance Amendment. 3. Notice of Public Hearing. g:\plan\city code\2009 code amendments\led lights\cover memo pc.doc Chanhassen is a Community for life - Providing for Today and Planning for Tomorrow CITY OF CHANHASSEN 7700 Market Boulevard PO Box 147 Chanhassen, MN 55317 Administration Phone: %2.227.11 00 Fax: 952.227.1110 Building Inspections Phone: 952.227.1180 Fax: 952.227.1190 Engineering Phone: 952.227.1160 Fax: 952.227.1170 Finance Phone: 952.227.1140 Fax: 952.227.1110 Park & Recreation Phone: 952.227.1120 Fax: 952.227.1110 Recreation Center 2310 Coulter Boulevard Phone: 952.227.1400 Fax: 952.227.1404 Planning & Natural Resources Phone: 952.227.1130 Fax: 952.227.1110 Public Works 1591 Park Road Phone: 952.227.1300 Fax: 952.227.1310 Senior Center Phone: 952.227.1125 Fax: 952.227.1110 Web Site ww#.ci .chanhassen. mn. us MEMORANDUM TO: Todd Gerhardt, City Manager FROM: Sharmeen AI-Jaff, Senior Planner DATE: May 26, 2009 SUBJ: Light-Emitting Diode (LED) Lights ISSUE Staff was contacted by a developer requesting installation of Light-Emitting Diode (LED) lights. Staff explained that current city ordinances allow only High- Pressure Sodium (HPS) lights. Staff researched the difference between LED and HPS and presented the findings to the Planning Commission. The consensus was that the yellow hue from HPS is preferred over the white LED. BACKGROUND The City Code allows high-pressure sodium (HPS) light fixtures only (Sec. 20- 913). This requirement applies to public and private developments. The code also requires that if a development changes more than 50% of its existing non- conforming light fixtures, then the new fixtures must meet all standards specified in the code including the high-pressure sodium. Chanhassen is a Community for life. Providing for Today and Planning for Tomorrow Todd Gerhardt, City Manager LED Lights May 26, 2009 Page 2 of 5 A large number of the city street lights are owned and maintained by Xcel Energy and Minnesota Valley Electric Company (MVEC). Currently Xcel Energy and MVEC offer HPS only. This discussion will focus on privately owned lights rather than street lights owned by Xcel Energy. EXISTING SITES WITH LED LIGHTS Staff recommends the City Council visit one or more of the following sites to be more acquainted with LED light fixtures: . Chan View in Chanhassen (south of the Chanhassen Fire Station) located at 7610 Laredo Drive, Chanhassen, MN 55317 . Eden Prairie City Hall parking lot located at 8080 Mitchell Road, Eden Prairie, Minnesota 55344 . 1-35W Mississippi River Bridge, Minneapolis . Cub Foods - Phalen Neighborhood, 1177 Clarence Street, St. Paul, MN 55106 ANALYSES One of the more promising and emerging technologies in lighting is LED. It consumes approximately 50% less energy than HPS making it more energy efficient. The lifetime of LED is between 10 to 15 years, while HPS lasts 3 to 5 years, requiring more frequent maintenance. Todd Gerhardt, City Manager LED Lights May 26, 2009 Page 3 of 5 Municipalities are investigating the option of switching light fixtures from HPS to LED and they all want answers to the following questions: "Is this a good light? Is it as bright? Do we get the same coverage?" As with any such transition, there are advantages and disadvantages. - Compact Fluorescem High Intensity Discharge '1000 The cost associated with retrofitting existing fixtures is still high; however, it is falling rapidly. 100 - E Q) -'(0 ~ u 10 thCl) - +-'0) C/J 0 O....J U 1 -- Fluorescent White LED ~ Incandescent o 2000 2005 200 f ... ,'~ , I --a,' " LED, I > I I~~ , I , ,Whl. t , LED t I ;;;!/ - l! 150 ~ ~ a- .i 100 Jl in ! 2 50 ~ .3 Inc4ndOse4lnt 1', . . Halogen ry rI' o 1920 1NO . - 1980 1960 2000 -~- Figlln: 2-1: Hi~toricul und Predicted EITkacy of Light SOllrcc~ Source; Lumilclls. 2010 2015 Year Some of the LED products available today are marketed as "energy-efficient," but actually have lower light output (illumination) compared to typical light sources. The current efficacy of an LED light continues to grow. It is anticipated that it will surpass existing technologies. 2020 Todd Gerhardt, City Manager LED Lights May 26, 2009 Page 4 of5 As LED technology advances, costs decrease, and efficiency improves, LEDs will become more competitive in the market place. The following chart shows how the light output of LED has increased twentyfold each decade for the last 40 years, while the cost has decreased tenfold each decade over that same time period. The figure also shows predictions for price and light output over the next two decades. 10000 ... Red $ILumen ... White $/Lumen . Red Flux . White Flux 1000 -Expon. (Red Flux) -Expon. (Red S/Lumen) (jj'" +20x IncreaselDecade.. c .. Ql 0 E 100 0 ::l (II ...J ..... Ql ? c: CI 10 3 ro ...: CD 0 ::l ro Q. v> ~ r- ::l c. c: ... 3 ::l 0 CD ... 0.1 2- - CI :J 0.01 -1 Ox DecreaselDecade 0.001 1965 1970 1975 1980 1985 1990 1995 2000 2005 2010 2015 2020 Year Figure 2-4: Haitz's Law: LED Light Output Increasing I Cost Decreasing Source: Roland Haitz and Lumileds. :'\otc: Both lincs arc onthc samc numclical scale (with dilrlTcnt units) The one remaining issue deals with the placement of LED lights next to HPS light fixtures. The output of these lights is visually and esthetically different. LED provides a soft, even, and white light while HPS is a focused, golden light. PROPOSED RECOMMENDATIONS Based on the above-mentioned facts, staff believes that LED lighting should become the leading method of illumination. The City must consider how to facilitate the transition process from HPS to LED. The following are options to consider: 1. Do nothing: Eventually, the city will react to the changing technology. 2. Allow a mix of LED and HPS fixtures: It will provide the most flexibility; however, it will lead to a mix of lighting. Todd Gerhardt, City Manager LED Lights May 26, 2009 Page 5 of5 3. Allow developers the choice of either LED or HPS fixtures: Provides flexibility. Since the cost ofHPS in the short term is less than LED, developers may opt to install HPS. 4. Require all new developments to provide LED lights: There is a higher short-term cost; however, the continuing maintenance and overhead cost will be less. 5. Replace existing light fixtures as HPS fixtures need replacing: will require a long-term commitment on the city's part. g:\plan\issue paper\led-cc.doc CITY OF CHANHASSEN CARVER AND HENNEPIN COUNTIES, MINNESOTA ORDINANCE NO. AN ORDINANCE AMENDING CHAPTER 20 CHANHASSEN CITY CODE, ZONING THE CITY COUNCIL OF THE CITY OF CHANHASSEN, MINNESOTA ORDAINS: Section 1. Section 20-913 Lighting of the City Code, City of Chanhassen, Minnesota, is hereby amended to read as follows: (c) Lighting fixtures on poles shall comply with the following: (1) All fixtures must be shielded, high pressure sodium or Light-Emitting Diode (LED) with a total cutoff angle equal to or less than 90 degrees. Section 2. This ordinance shall be effective immediately upon its passage and publication. PASSED AND ADOPTED this _ day of ,2009, by the City Council of the City of Chanhassen, Minnesota Todd Gerhardt, City Manager Thomas A. Furlong, Mayor (Published in the Chanhassen Villager on ) 1 CITY OF CHANHASSEN CARVER & HENNEPIN COUNTIES NOTICE OF PUBLIC HEARING NOTICE IS HEREBY GIVEN that the Chanhassen Planning Commission will hold a public hearing on Tuesday, June 16,2009, at 7:00 p.m. in the Council Chambers in Chanhassen City Hall, 7700 Market Blvd. The purpose of this hearing is to consider a request for amendments to Chapter 20, Zoning, of the Chanhassen City Code. The proposed changes are available for public review at City Hall during regular business hours. All interested persons are invited to attend this public hearing and express their opinions with respect to this proposal. Robert Generous, Senior Planner Email: bgenerous@ci.chanhassen.mn.us Phone: 952-227-1131 (Publish in the Chanhassen Villager on June 4, 2009)