The Naval Base Ventura County (NBVC) California is saving nearly $60,000 annually on the base’s energy bill thanks to lighting retrofits at two separate sites. The Port Hueneme and Point Mugu sites have replaced 1,178 existing roadway, area, and parking lot lighting fixtures with ultra-efficient LED luminaires manufactured by Lighting Science Group.
The entire project at the two bases will reduce their energy consumption by 440,000 kWH, cutting CO2 emissions by 316 metric tons and their annual utility bill by about $57,000, based on the average Ventura County, California, utility rate of 13.5 cents/kWh.
Considered one of the largest Navy lighting retrofits, the new LED fixtures are expected to deliver a 50 percent energy savings for more than a decade. The sites replaced existing high-pressure sodium cobra head street lighting fixtures throughout the residential areas with 430 PROLIFIC series Roadway luminaries that provide nearly 92 lumens per watt.
In addition, 549 WallPack luminaires were installed at the bachelor housing facilities, which illuminate exterior walkways and provide perimeter and security lighting. The luminaires will last up to three times longer and will consume less than half the amount of energy than conventional light fixtures and light sources.
To save additional energy, each fixture contains an occupancy sensor that reduces fixture wattage and light output from 35 to ten watts, when it senses inactivity after a set period of time.
The project also replaced traditional parking and general area lighting fixtures with 105 ShoeBox luminaires that use only 86 watts per fixture.
Navy ships also are converting to LED lighting to reduce electricity use. A study released last year shows that Navy ships could save 87 percent of the electricity used on existing lighting systems by converting to LED and HID lighting systems.