General Dynamics Land Systems was formed in 1982 when General Dynamics acquired Chrysler Corporation's defense operations. Since World War II, Land Systems and its predecessor companies, Chrysler Defense and GM Defense, have produced more than 63,000 tanks and combat vehicles. Engineering, research, and technological innovation continue to position Land Systems as a leader in the force modernization programs of the U.S.A. and international customers.
- Client Challenge:
General Dynamics Land Systems, needed updated lighting within two facilities to give them more effective lighting and to boost energy savings.
RTS performed an audit of two buildings. RTS evaluated vast numbers of variables such as how the space will be used, amount of day-light, load potential, dimming, lamp color, initial cost, and cost to maintain moving forward.
- Lighting Solution:
Retro-Tech Systems, Inc. completed a two phase lighting upgrade encompassing 600,000 sq. feet in two buildings, including exterior building and parking lot lighting. Scope These projects included the replacement, conversion or retrofit of over 11,000 fixtures. Phases One and Two were similar, office area 4-lamp, T12 fluorescent lay-in troffers were replaced with new 3-lamp, T8 lay-ins. In the warehouse, 3-lamp, T12 high output industrial fixtures were replaced with new 320-watt, pulse start metal halide low bay fixtures and 2-lamp, T12 high output industrial fixtures were replaced with new T8 fixtures. New modular fixture connections, switches and motion sensors were installed. Remaining T12 fixtures were retrofit with T8 lamps, electronic ballasts and, in some cases, specular reflectors. Remaining 400-watt metal halide low bay fixtures were retrofit with 320-watt pulse start metal halide lamp and ballast kits. Incandescent fixtures were retrofit with screw-in compact fluorescent lamps and all exit signs were replaced with new LED exit signs. Exterior high pressure sodium wallpack fixtures were replaced with new metal halide fixtures.
- The Results:
The energy savings for this project were impressive. Annual kW and kWh usages were reduced 36% and 49% respectively. The two facilities expect to realize over $180,000 in annual energy cost savings. Maintenance cost savings are also significant. The existing fluorescent lighting system was comprised of standard 4' and high output 8' T12 lamps that have an average life of 20,000 to 12,000 hours, respectively. The long life 4' T8 lamps installed have an average life of 24,000 hours.