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Lighting Assessment: Military Ocean Terminal Concord

Location: Concord, California
Owner: US Army Corps of Engineers

Military Ocean Terminal Concord (MOTCO) is a U.S. government owned military base located in the eastern portion of the San Francisco Bay Area in the city of Concord, CA. The facility is divided between two areas: the Tidal Area and the Inland area; in total, the campus comprises almost 13,000 acres.

SEA lighting analysts developed a multi-step solution to reduce energy consumption via the exterior lighting network. The first solution was the development of an exterior illumination strategy. Previous attempts to curtail the energy usage of the street lighting network involved several iterations of de-commissioning various fixtures. Our solution allowed facility management to develop a best practices strategy for illuminating the exterior that included input from various entities such as the office of the base commander, the health and safety officer, and the security officer, etc.

The second part of the solution involved a system-wide upgrade. All street and area fixtures included in the master lighting plan would be upgraded to LED fixtures or retrofitted with ceramic metal halide lamps and electronic ballasts. This solution would immediately reduce the consumption and demand of the system while incorporating spectrally enhanced lighting techniques to better illuminate the area.

Our third solution was to install a wireless controls network. This network would incorporate the use of a stand-alone server and control module coupled with individual fixture nodes that would allow full control of each fixture. This system could then be used to dim fixtures when occupancy is not expected and thus increase the savings.

All three solutions would reduce the consumption of the exterior network by more than 225,783 kilowatt-hours and save the facility over $21,000 per year. At an estimated implementation cost of around $337,000, the simple payback for the project is 13.2 years with the estimated life of the new fixtures to be in excess of 20 years.

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