Lighting Science Group Corporation (LSG) recently announced that Arizona State University (ASU) has taken another step in its commitment to 'going green' by retrofitting six parking structures on the Tempe campus with new light emitting-diode (LED) fixtures. Changing the existing fixtures to Lighting Science's LED low bay solution will afford ASU with an annual savings of up to $127,000 in energy and maintenance costs for the six structures that were retrofit.

As part of a Phase II energy conservation and sustainability project underway throughout campus, ASU's partner APS Energy Services replaced over 2,000, 150 W metal halide fixtures with Lighting Science's 78 W LED low bay luminaires. By replacing existing metal halide fixtures and lamps, ASU will reduce its energy consumption by 1.5 million kW hours, which is equivalent to the annual greenhouse gas emissions from 208 passenger vehicles.

Lighting Science's pyramid-shaped LED fixtures are made up of 108 light sources, whereby if one light source dims or fails, other light sources remain to provide a reliable level of illumination. The new fixtures are also less costly to maintain because they last 50,000 hours, or approximately three times longer than the typical metal halide fixture they replace.