NEW MEXICO STATE UNIVERSITY – LAS CRUCES, NEW MEXICO
LIGHTING, LIGHTING CONTROLS AND EXTERIOR UPGRADE
NMSU was founded in 1888 as Las Cruces College. The Territorial Legislature of 1889 established the land-grant Agricultural College and Experiment Station, which officially opened on January 21, 1890. During its first full academic year, the college became known as the New Mexico College of Agriculture and Mechanic Arts, the first degree-granting institution in the Territory. Under the provisions of the Morrill Act of 1862 and subsequent federal legislation, the special mission of land-grant institutions has been to provide a liberal and practical education for students and to sustain programs of research, extension education, and public service.
In 1960, New Mexico College of Agriculture and Mechanic Arts became New Mexico State University. Since that time, while sustaining excellence in those programs traditionally associated with land-grant institutions, New Mexico State has become a comprehensive doctoral-level university offering a wide variety of programs through the graduate school and colleges: Agricultural, Consumer and Environmental Sciences; Arts and Sciences; Business; Education; Engineering; and Health and Social Services.
1. Client Challenge:
The challenge was to explore the energy and operational cost reduction opportunities at NMSU. Our audit for the campus wide lighting upgrade varied greatly depending on the existing lighting technologies, existing lighting challenges for the customer and the expectations for the project. The overall strategy must meet the following criteria; lower energy costs, lower operational costs, enhance the overall appearance of the facilities and standardize the current lighting system.
In addition to the above challenges, the upgrade should contribute to a higher quality learning environment by improving lighting, visual comfort and indoor air quality. The technologies must be proven effective on prior projects and have a high benefit to cost ratio.
2. Lighting Solution:
An Investment Grade Audit of the facilities was conducted and below is a list of the interior lighting recommendations that will achieve the criteria listed in the Client Challenge. Our audit discovered a mix of older T12 lighting systems and T8 lighting systems, along with incandescent, HID, and CFL technologies throughout the campus. New advancements in lighting have occurred in the past 3 years and make it possible to retrofit existing T8 lighting with new lower wattage T8 technology that provide similar lumen output, higher CRI, longer life, and additional energy savings without sacrificing light levels. At this time, LED is the most cutting edge technology commercially available in terms of delivered lumens per watt and rated life. One of the benefits of LED technology is that it is a directional light source, making it ideal for recessed and high bay applications. LEDs have the greatest luminaire efficiency allowing them to use less wattage to get the same amount of light to the task plane. Where feasible, LED technology was proposed.
3. The Results:
The energy savings for a project of this size were significant. The kW was reduced 44% and the kWh was reduced by 51% while all facilities upgraded will total over $583,000 in annual lighting, maintenance and HVAC savings. The stated savings will result in Green environment savings of the following.
Acres of Trees Planted per Year – 1,639
Cars Removed per Year – 791
Acid Rain (CO2 lb/k WH) Removed – 13,566,836
Smog (NOX g/k WH) Removed – 22,611.394
Acid Rain (SO2 g/k WH) Removed – 56,528,485