Case Study: Pleasanton Library cuts lighting energy use 46% with wireless lighting controls and fixture retrofits

Dec 6, 2011 Pleasanton Public Library in Pleasanton, California has benefitted significantly from installing Adura Technologies  wireless lighting control system. The Adura system and the fixture retrofit combined have reduced the library’s lighting energy use by 46 percent while enhancing user comfort and safety. The installation was completed as part of a retrofit project supported by the Energy Technology Assistance Program (ETAP), which is part of the statewide Energy Upgrade California™ program.

According to Adura Technologies, the wireless control system works best with the LED lighting luminaires, however this particular project was done using CFL lamps.

LEDs Review: Why the selection was made in favor of the CFL vs LED lights? Was it the initial high cost of the installation for LED lights that determined the selection?

Adura Technologies: There were actually a few reasons contributing to the decision to retrofit their existing fixtures:
1)      The library has a hard-lid ceiling, which would have made installing replacement fixtures of any type very labor-intensive (and cost intensive).
2)      At the time the city began the evaluation, there were not many LED fixture options that would have fit the format of the existing fixtures.

These two obstacles combined to make retrofitting the existing fixtures the most feasible option for this building. On top of that, the fixture density in the library is very high, making the total count (661 fixtures) of purchasing new fixtures a pretty significant barrier.

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