Overview of Streetlights Served by Eversource in Connecticut 6/5/2018 Overview of Streetlights Served by Eversource in Connecticut

Street Lighting Fixtures and Lamps

Streetlight Service Overview Total Inventory Streetlights 187,249 Total number of street lights Ownership Eversource (Rate 116) 118,464 Customer (Rate 117) 68,785 Customer Towns 90,725 State 3,207 Federal 58 Private 24,474 Towns 68,771 State 9 Private 5

Advantages of LED Street Lights Energy savings of 40-60 percent compared to the predominant HPS lighting technology (on average); Reduced energy costs; Reduced maintenance costs of 50 percent or more due to their longer lifespan; Improved lighting quality from better color rendering than the predominant HPS lights; and, Opportunities to install advanced/connected controls LA Bureau of Street Lighting

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Eversource is Addressing Health Concerns of LED Street Lighting Health concerns from disruptions to circadian rhythm from blue light sources Includes tablets, cell phones, computers, LED street lights American Medical Association recommends Retrofitting street lighting to save energy Using “warmer” color lighting (color temperatures ≤ 3000 K) Eversource is using 3000K LEDs street lights in retrofits

Company-Owned LED Street Lighting Retrofit Focus Customer Ownership Total Inventory Streetlights 187,249 20,077 132,264 34,908 Eversource (Rate 116) 118,464 1,086 92,611 24,767 Towns 90,725 889 80,979 8,857 State 3,207 3,010 197 Federal 58 43 15 Private 24,474 8,579 15,698 (Rate 117) 68,785 18,991 39,653 10,141 68,771 39,652 10,128 9 5 1 4 Total number of street lights Total Number of LEDs Non-LED cobra heads Other non-LED fixture types Towns 90,725 889 80,979 8,857 State 3,207 3,010 197 Total number of street lights Total Number of LEDs Non-LED cobra heads Other non-LED fixture types 2016-2018 Retrofits

Company-Owned LED Street Lighting Retrofit Plan Year Number of LED Upgrades Company Funds Energy Efficiency Fund Incentives Projected Annual Energy Savings (MWh/year) Projected Annual Cost Savings 2015-2016 Demonstration Projects 889 $574,275 $0 229 $31,494 2016 7,026 $2,267,762 $618,288 2,100 $203,754 2017 37,412 $12,607,844 $3,292,256 11,186 $1,084,948 2018 38,662 $13,029,094 $3,402,256 11,560 $1,121,198  Total 83,989 $28,004,700 $7,312,800 25,076 $2,432,100

Appendices

Street Lighting Inventory Lighting Technology by Fixture Type Cobra Head Decorative Flood/Spot Unspecified Grand Total HPS 131,463 14,298 9,384 5,365 160,510 Incandescent 48 LED 905 227 18 18,927 20,077 Mercury Vapor 120 16 6 1,802 1,944 Metal Halide 786 2,581 1,328 91 4,786 133,274 17,122 10,736 26,233 187,365

DEEP Order 3 Timeline Dec. 31, 2015 DEEP approved with conditions the 2016-2018 Electric and Natural Gas Conservation and Load Management Plan Condition 3 was outlined in DEEP’s Order 3: “The Companies shall submit to BETP for DEEP's records a report that summarizes the state of street lighting in Connecticut. Specifically, the Companies shall provide best estimates of the numbers of street lighting fixtures owned by the utilities, municipalities, and the State of Connecticut. To the extent such information is available to the Companies; the report shall quantify how many streetlights in each category have been upgraded to LED technology and/or with streetlights in each category have been upgraded to LED technology and/or with advanced lighting controls. The Companies will provide recommendations on the timeline for upgrading street lights in each of these categories, and the recommended funding mechanism for such upgrades.” August 9, 2016 – Eversource submitted our response to Order #3 August 23, 2016 – DEEP issues Approval of Conditions #3 of 2016- 2018 C&LM Plan

AMA Statement On June 14, 2016, The American Medical Association (AMA) issued an official policy statement on LED street lighting that included three recommendations : First, the AMA supports a "proper conversion to community-based Light Emitting Diode (LED) lighting, which reduces energy consumption and decreases the use of fossil fuels." Second, the AMA "encourage minimizing and controlling blue-rich environmental lighting by using the lowest emission of blue light possible to reduce glare." Third, the AMA "encourage the use of 3000K or lower lighting for outdoor installations such as roadways. All LED lighting should be properly shielded to minimize glare and detrimental human and environmental effects, and consideration should be given to utilize the ability of LED lighting to be dimmed for off-peak time periods.” Reference: http://www.ama-assn.org/ama/pub/news/news/2016/2016-06-14-community-guidance-street- lighting.page?http://www.ama-assn.org/ama/pub/news/news/2016/2016-06-14-community-guidance- street-lighting.page?