The University of Georgia Costa Rica 2014-2015 Sustainability Report UGA Costa Rica 2014 - 2015 Sustainability Report - Page 16

90% 90 percent of Costa Rica’s electrical power supplying the national grid is generated from renewable sources. GOAL: Switch all high-use outdoor bulbs by 2015 to reduce energy consumption. With the exception of a few common areas, outdoor lighting fixtures are sparingly used. Campus facilities largely depend on natural lighting to illuminate buildings. When artificial lighting is necessary, the bulbs used have traditionally been either incandescent or compact fluorescent bulbs (CFL). When the 2010 Sustainability Report was released, 70% of the bulbs on 16 campus were incandescent, the least energy efficient bulb on the market. As part of the 2015 Vision, UGA Costa Rica aimed to switch all high-use bulbs to LED bulbs to reduce energy consumption, representing just one part of the overall effort to reduce energy consumption on campus. Now that LED bulbs are less costly, UGA Costa Rica has accomplished this goal, purchasing LED bulbs for every high-use indoor and outdoor lights on campus. As an older bulb burns out, is it replaced with a new LED one. There are important environmental and economic benefits of using LED bulbs over CFL and incandescent bulbs. The primary benefits lie in the increased energy efficiency, which reduces carbon dioxide emissions due to less electricity consumed. Another important benefit is the increased lifespan, which reduced the amount of waste. By using LED Containing no mercury and lasting up to 50,000 hours, LED light bulbs are better for the environment than other bulb types. Type of Bulb Watts Consumed per Lumen of Light Generated Average Life Span (hours) Contain Mercury LED 6–8 50,000 No CFL 13 – 15 8,000 Yes Incandescent 60 1,200 No University of Georgia Costa Rica