Transformations in Lighting 2012 DOE SOLID-STATE LIGHTING R&D WORKSHOP Hyatt Regency Atlanta • Atlanta, GA January 31–February 2, 2012 Panel 1 - Insig hts from Installations City of Seattle LED Street Lighting Conversion Presented by: Edward Smalley Director, Municipal Solid-State Street Lighting Consortium Seattle City Light | Government and Legislative Affairs Program Background ƒ Seattle City Light, a utility publically owned by the citizens of the City of Seattle since 1905 ƒ Superintendant: Jorge Carrasco ƒ Tenth largest public power utility in the US with 405,000 metered customers ƒ 15,587,096 MW-hrs in sales (2008) ƒ 6,284,760 MW of generation from 7 hydroelectric plants ƒ Number of Streetlights in system: 84,000 ƒ First Phase of conversion: 41,000 Residential Streetlights over 4 years - 20,000 Units installed to date 2 Program Background - continued ƒ Projected Budget: $24 million (Projected Cost:$18 million) ƒ Funding: ƒ Utility funding | Customer billed ƒ $1 million ARRA EECBG Grant in 2010 ƒ Goals: ƒ Reduce energy use by 40% - Actual 48%+! ƒ Lower maintenance costs (only lens cleaning during fixture life, no relamping, longer life photoelectric cell) ƒ Improve Customer Service (increased reliability of the fixture, fewer outages) 3 Program Background - continued Street Lighting Types by Use pre LED conversion Pedestrian Arterial and Special Cobra Head Lighting Lighting 11,705 (14%) 31,447 (37%) Pilot Evaluations in 2011 Residential Cobra Head Lighting 84,000 Total Fixtures 40,783 (49%) 4 Program Background - continued Street Lighting Types by Use – End Conversion Year 2 Pedestrian Residential and Special Cobra Head 11,726 (14%) 22,763 (27%) Arterial Cobra Head Residential 31,439 (38%) LED 18,000 (21%) 84,000 Total Fixtures 5 Program Background - continued System Energy Usages – Pre Conversion Pedestrian and Special 14,334,629 kWh (16%) Arterial Cobra Residential Heads Cobra Head 52,827,180 22,693,382 kWh (59%) kWh (25%) 89,855,191 kWh 6 Program Background - continued System Energy Usages – Post Conversion Year 2 Pedestrian and Special 14,334,629 kWh Residential LED (17%) 6,898,500 kWh (8%) Arterial Cobra Heads 52,827,180 kWh Residential (61%) Cobra Head 12,733,536 kWh (15%) 86,793,845 kWh 7 Methodology – Fixture Selection 1. Identify demonstrations sites 2. Establish a Specification by modifying MSSLC Model Spec to select luminaires for evaluation based on demonstrations sites application 3. Acquire approved samples for engineering evaluation 4. Perform field demonstrations and evaluations 5. Conduct community surveys 6. Establish a Standard with “Approved Products” list 7. Conduct Bid Process Typical Site Parameters ƒ Typical cross-section: 32 foot ƒ Luminaire mounting height: 25’ to 30’ ƒ Light pole spacing: 150 fee t ƒ Tree Conflicts: Seattle… Luminaire Evaluation Process ƒ Internet Research & Phone Calls ƒ Manufacture Questionnaire ƒ Photometric performance ƒ “Made in America” status ƒ Manufacturers’ production capabilities ƒ Manufacturers’ Specification ƒ LM 79 & LM 80 Reports ƒ Pricing