Street Light Technology Vendors Forum October 20, Energy Efficient Street Lights -- Potentials for Reducing Greater Washington’s Carbon Footprint Street Light Technology Vendors Forum October 20, Energy Efficient Street Lights -- Potentials for Reducing Greater Washington’s Carbon Footprint

Background Electricity used for lighting in residential, commercial, and manufacturing = 16% of total U.S. electricity consumption = 588 billion kWh Use and cost of electricity is growing This poses challenges to tight local budgets, the grid, and household incomes More efficient use of electricity = saving local government and taxpayer dollars = reducing our region’s carbon footprint

Lights Out? North Andover, MA – turn off 626 street lights (1/3 of town’s total) = $47,000 savings Dennis, MA – 832 lights off = $50,000 Dennis, MA – 832 lights off = $50,000 Montgomery, PA – 31 lights off = $6,000 Santa Rosa, CA – Remove 6,000 of city’s 15,000 lights, keep another 3,000 off 12 – 5:30 am = $400,000 savings

Opportunity for Energy Efficient Street Lights Street lights account for up to 38% of a municipality's electricity costs It is estimated that there are over 13 million street lights in the U.S. – 300,000 in Greater Washington Application of LEDs (light emitting diodes) and / or smart street light technology will decrease electricity use by about 50% This technology also dramatically reduces maintenance costs

Ann Arbor LEDs They are replacing 1,000 street lights downtown…700 already installed Downtown’s architectural globes -- energy savings 50% (120 watt to 56 watts) Future plans to replace 800 cobrahead lamps (tests show 50-80% saving) Total cost savings 20% from energy 80% from maintenance (Metal halide 2 year life)

Ann Arbor LEDs

4 to 4 1/2 year ROI One city block has already been prepared for smart street light technology for additional savings Contact: Andrew Brix ext

Purcellville, Virginia 10 LEDs replaced HPS on cobrahead lamps downtown First project with Dominion Power First project with Dominion Power Cost about $1,000 each Preliminary energy savings estimated at $360 per month; ROI 2.3 years Contact: Mayor Bob Lazaro or Graham Cecil, Dominion who is here today.

Smart Streetlight Technology Widely used in Europe Install LED or HID lamps and “smart” electronic ballasts Ballasts communicate over existing power lines or RF Servers monitor energy use, collect data from traffic and weather sensors, astronomical data on natural light Data used to dim some or all of the streetlights Can identify lamps that are out or ready to burn out saving energy and labor costs

Smart Street Lights

Smart Street Lights San Francisco

Beijing Capital Highway Development Company This project was installed in the summer of 2008 controlling 4,500 street lights. 1,000 more in 2009 Street lights are now fully dimmable Have the ability to perform remote readings of power meters in the control cabinets Full documentation and awareness of energy consumed Beijing Case Study

Beijing Centrally located photocell ensures that street lights are turned on at twilight / off during day No daytime burners Dimming extends lamp life Energy savings of 28% Estimated ROI 3 years

Contact: Johan Becker Amplex Inc th Street, NW, Suite 1010 Washington D.C T C

Potentials for Greater Washington Washington Region = 300,000 streetlights = 200 million kWh electricity = 155,491 metric tons of CO2 Washington Region = 300,000 streetlights = 200 million kWh electricity = 155,491 metric tons of CO2 Potential savings (at 50% reduction) = 100 million KWH = $6 million (assuming 0.06 cents per kWh) = 77,746 metric tons CO2 annually

Cost / ROI Estimated cost for smart streetlight retrofit for Greater Washington $70 million ROI approximately 7 years This does not include the potential future value of carbon offsets

U.S. Top Ten Metro Regions 4.4 million streetlights in top 10 metro areas Applying technology can save: -- 1,494.2 kWh million tons of CO2 -- Automobile equivalents = 212,768

Some Considerations Who owns and controls the street lights? Inventory of street lights Evolution of technology / LED and controls Phase out of mercury vapor lamps Value of carbon / CO2 reduction / Cap and Trade

Demonstration Projects in U.S. Ann Arbor Anchorage Los Angeles San Francisco Pittsburgh San Jose New York Newark Seattle Palo Alto San Marcos Carlsbad Milwaukee Urbana Grand Rapids Winston-Salem Newton, MA Glendale, AZ Raleigh Austin Chapel Hill Danville, VA Fairview, TX

Summary Energy efficient street lights can save about 50% of current electric use Important savings result from reduced maintenance LED and “smart street light technology alone or combined LED and “smart street light technology alone or combined Will soon have new data from demonstration projects Offers an important opportunity for Greater Washington to address tight municipal budgets and reach GHG goals Greater Washington should initiate a demonstration project

Contact Information Bob Grow