The Presidio YMCA replaced 14 T2 linear fluorescent lights and magnetic ballasts with T8 linear fluorescent lamps and electronic ballasts in the basement. Also, the administration installed 2 LED exit signs and upgraded 22 metal halides with custom induction lighting in the pool area. Within a couple of months after the upgrades were completed, there was a reduction of about 20% in energy cost.
Dollar Market was approached by a participating SF Energy Watch contractor who identified the store's existing efficient and inefficient lighting. After analyzing the financial benefits of upgrading the inefficient fixtures Dollar Market opted to follow the contractor's recommendations by undertaking lighting retrofits throughout the store.
It has been two years since the city of Los Angeles launched a major public works project to retrofit the city’s street lighting with energy-efficient LED (lightemitting diode) fixtures, making this a good opportunity to assess progress. The project is still the largest LED street lighting retrofit ever undertaken globally; its implementation is ahead of schedule and the energy cost savings are surpassing original projections, largely due to continued improvements in the energy efficiency of LED technology.