Most parking areas are illuminated through the night, regardless of actual occupancy, which wastes energy and contributes to light pollution. In addition, the primary sources of illumination in most commercial and institutional facilities are high pressure sodium (HPS) and metal halide (MH) pole-mounted luminaires. These fixtures may consume more electricity and provide lower color quality and shorter lamp life when compared to some innovative, emerging light sources.

The combination of occupancy controls, a bi-level generator, and an induction source produces an energy-efficient luminaire with exceptionally long life, good color quality, and dynamic light level response based on actual usage. The bi-level controls contribute additional savings that are directly proportional to automotive and pedestrian traffic patterns.

Induction area luminaire, California Department of Public Health		EverLast induction area luminaire		Induction area luminaire, University of California, San Francisco

To demonstrate a bi-level induction area fixture to reduce energy consumption and maintenance costs, as well as increase safety by alerting occupants to other traffic.

• Commercial
• Institutional

• Bi-level products may be combined with traditional photocontrols to maximize energy savings, which is estimated to be 30–75% per fixture.
• High-performance induction fixtures reduce demand and maintenance.

• Payback is between three and seven years, depending on occupancy rates and size of the retrofit.
  
• Long-life induction fixtures – up to 100,000 hours – significantly reduce operating and maintenance costs.
• Light level activity can increase safety by alerting occupants to other traffic.

The bi-level induction luminaire is available from EverLast Lighting.

Post-retrofit		DEMONSTRATION LOCATION: California Department of Public Health, Richmond, CA Performance results/energy savings: The retrofit saved 619 kWh per year and resulted in $97 annual savings per unit. Date of Install: July 2009 Timeframe of testing/evaluation: August 2009 Partners: California Department of Public Health and EverLast Lighting Sponsors: California Energy Commission

Post-retrofit		DEMONSTRATION LOCATION: University of California, San Francisco Performance results/energy savings: The retrofit saved 414 kWh per year and resulted in $60 annual savings per unit. Date of Install: May 2010 Timeframe of testing/evaluation: June 2010 Partners: University of California, San Francisco and EverLast Lighting Sponsors: California Energy Commission

• Case study: UC Davis bi-level induction area luminaire demonstration
  
• Dynamic project map
• EverLast Lighting
• 2010 PIER Parking Lots and Garages Catalog