February 23, 2014 San Diego “Smart City Infrastructure”

Tonight’s Program San Diego “Smart City Infrastructure” Street Lighting Retrofit Energy Efficiency Project “Smart City Infrastructure” Program Convergence of Technology Advances in: LED Lighting Wireless Metering & Controls (M2M) Sensors Data Analytics 2

Marty Turock/CleanTECH San Diego Background San Diego Region Street Lighting Working Group (SLWG) Lorie Cosio-Azar/City of San Diego City of San Diego “enLIGHTen San Diego” Progress/Vision Dawn Welch/San Diego Gas & Electric New Paradigms to Support Evolution of the Smart Grid Mark Wilbur/GE Lighting LED Luminaires with Adaptive Controls Jason Ellis/Qualcomm Inc. Vision for Wireless Evolution and the “Smart City Infrastructure” Tonight’s Program San Diego “Smart City Infrastructure” 3

718 Clean Tech Companies and Counting Robust, upward trending new company growth Strong focus on innovation with over 50 world-class research institutions providing R&D venues and demonstration sites Active partnership culture with multiple market connectivity organizations Recent iHub designation from Governor’s office for solar energy and storage The San Diego Clean Tech Economy ENERGY EFFICIENCY= 48 SOLAR= 181 BIOFUELS= 22 WIND= 30 TRANSPORTATION= 29 MATERIALS= 12 CleanTECH San Diego was created in 2007 to: Support Job Creation. Advance and diversify the San Diego region’s economic development goals Build a Common Agenda. Bring together the region’s diverse clean tech Stakeholders around a common agenda Prepare for the New Economy. Help San Diego prepare for and benefit from California’s proactive regulatory policies Mission: Accelerate the San Diego region as a world leader in the clean technology economy CleanTECH San Diego 4

Greening San Diego Program 18 Cities, County, Port of San Diego, Regional Airport Authority Focus on Energy Efficiency, Demand Response and Distributed Generation Lead by Example with Municipal Retrofits Outreach to Drive Adoption in Residential and Commercial Sectors Leveraging Public Agency Collaboration 5

Vision: The Smart Street Light Network For most cities, street lights are the highest single use of electricity, on average 25% Across the U.S. street, highway, and parking lights account for 104 TWh/yr 70 million mtons carbon Induction and LED technology retrofits both offer 40-50% energy savings compared to HPS & LPS; even more when integrated with adaptive controls Maintenance savings, especially when in the right-of-way Broad spectrum light sources provide improved nighttime visual acuity; enhanced public safety Highly visible application to grow public awareness and support for energy efficiency/sustainability Why Did We Start With Street Light Retrofits? Numerous Benefits 6

San Diego Region SLWG Accomplishments Street Lighting Retrofits - 14 cities, > 60,000 retrofits in progress - > 20 million kWh annual savings/14,000 mton C - > $20 million in economic development - > $3M in taxpayer savings Collaborative Methodology - Technology-agnostic/Vendor-agnostic - Online file sharing “Dropbox” - Field Studies/Specification Guidelines - Dark Sky/Observatory considerations - Sample RFPs - “Piggyback Procurements” Next Applications - Post-top, acorn-style street light retrofits - Adaptive Controls 8

Adaptive Controls Pilots The Next Step in Digital Lighting Technology City of San Diego & City of Chula Vista Adaptive Control Pilots w/UC Davis CLTC Downtown SD Post Top & Cobra Street Lights with new GE Adaptive Control System Chula Vista Roadway Cobra Street Lights with Acuity ROAM Adaptive Control System Objectives: Validate the correlation between dimming power reduction and photometric performance Provide SDG&E with validation and verification with regard to accuracy, security and automation of utility-grade metering/billing SDG&E to establish a metered time-of-use rate for street lights 9

8 th largest City in the United States million population Founding partner of CleanTECH San Diego Holistic focus on Integrated Demand Side Management $4.3 million in annual street light electricity cost (pre-retrofit) Climate Mitigation & Adaptation Strategy Climate Mitigation & Adaptation Strategy 10

Phase 1 – City Roadway Street Lights – Completed May 2013 Cobra-style induction retrofits – 34,000 roadway street lights 50% energy efficiency savings 15 million kWh per year energy savings/$1.8 million in annual electricity savings Street lights installed between mile radius of Observatories are 3000K CCT Amended Lighting Ordinance allows broad spectrum lighting and adaptive controls in residential and commercial applications 11 City of San Diego

Which is Better, Induction or LED? INDUCTION Advantages: - Lower Cost - Higher Efficiency at CCT’s <3500K - Current best option to meet “Dark Sky” - Mature, proven technology - Typical warranty 10 years Disadvantages: - Large bulb – poor optical control - Inferior photometric performance Market Scenario in 2009 LED Advantages: - Superior photometric performance - Provides highest minimum footcandles - Easily integrated with adaptive controls - Technology still evolving > Lumens/watt - Higher SDG&E rebates Disadvantages: - More expensive - Typical warranty 5 years 12

Phase 2 – Downtown Post Top Street Lights – June 2014 Completion Traditional post top globe retrofits of ~3,000 mid-block street lights 72% energy efficiency savings 2.5 million kWh per year/$250,000 in annual energy and cost savings New “antique” luminaire reduces uplight by 90% Downtown Stakeholder Steering Committee/ Field Survey support project Upgrading photosensors to reduce current biggest source of field failures LightGrid adaptive control system will wirelessly monitor each luminaire City of San Diego 13

City of San Diego Strategy Adaptive Controls Integrated for Maintenance Efficiencies and Monetization of Dimming Key Enabler is SDG&E Creating a New Metered Time-of-Use Tariff for Street Lights Smart Street Lights can enhance public safety and public services by offering: Holiday Lights Emergency preparedness and response Wireless water meter reading/billing Next generation homeland security applications (video, chemical sensors) Wi-Fi to low income neighborhoods Enhanced cellular service with micro cells (vs. towers) Transforming the Smart Street Light Network into a Smart City Infrastructure 14

Strategy Smart street light networks are fast emerging as one of a city’s most valuable smart grid assets.