University LED Retrofit Yields 74% Energy Reduction for Parking Lot Lighting

Bi-level induction cobra head and bi-level LED streetlights were installed at two locations on the Cal Poly campus. The bi-level induction cobra head luminaires (110W system, high mode) replaced HPS cobra head luminaires (280W system) in the H4 Facility Management parking lot. Bi-level LED luminaires (118W system, high mode) replaced HPS shoebox-style street lights (128W system) along Cerro Vista Circle, a one-way street leading through campus housing units. Both products were installed as one-for-one replacements for existing luminaires using existing poles and pole spacings. These retrofit demonstrations resulted in annual energy savings of 74% in the parking lot application and 32% for the streetlight application.

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