Case Study: Semiconductor Manufacturer — Silicon Valley, CA
Application: Parking Lot Lighting
Partner: Wil-Cal Lighting Management Co.
Silicon Valley is home to a thriving industry of cutting-edge high technology, and this semiconductor manufacturer consulted with Wil-Cal Lighting Management looking for ways to improve their outdoor area lighting.
Wil-Cal delivered a system using LEP to save 55% energy, reducing their carbon footprint while improving the quality of light compared to their original HPS installation. Occupancy sensors were used in Hi-Lo mode to dim lamps during the night to save even further energy.
400W HPS Lighting
275W LEP Lighting (STA-41-01)
We have used LUXIM Light Emitting Plasma technology on two different jobs replacing the yellow high pressure sodium with brilliant white light. On both jobs, we have saved approximately 50% energy while increasing light levels.
—Kinya Pollard, Wil-Cal Lighting Management
- Achieved 55% energy savings with Light Emitting Plasma technology
- Reduce CO2 emissions by 0.85 tons each year
- 50% reduction in maintenance costs
- 1/3rd setup time compared to typical lighting installations
- Uniform illumination completely eliminating dark spots
- Safer night-time environment with accurate color rendering
- Hi / Lo operation using motion sensors
Detailed Results Per Fixture
|HPS 400W||LEP STA-41-01 Hi/Lo||LEP Savings|
|AC System Power||465W||209W||236W|
|Daily Usage||12 Hours||12 Hours||N/A|
|Lamp Replacement Cost||$150||$200||-$50|
|Lamp Replacement Cycle||18,000 Hours||50,000 Hours||32,000 Hours|
|Annual Operating Costs|
|Average Annual Lamp Replacement Cost||$37||$18||$19|
|Total Energy Consumption||2037 KW-Hrs||913 KW-Hrs||1124 KW-Hrs|
|Annual Energy Cost ($0.13/KW-Hr)||$265||$119||$146|
|Total Annual Operating Cost||$18,000||$4,536||$13,464|
|Annual CO2 Produced||1.53 Tons||0.68 Tons||0.85 Tons|