2018, Greeley, Colorado, USA
Gianna Uyemura, Greeley Central High School
Greeley Central is one of the biggest schools in Greeley. That means there are a lot of lights. Most of these lights use fluorescent bulbs which are inefficient, toxic and outdated. These lights loose close to 80% of their energy as heat and contain mercury. LED lights contain no mercury, run cooler and loose less light to the targeted area.
Gianna decided to replace 266 fluorescent lights to LED. The total cost of the replacement was $677. The savings in electricity costs is almost $14,000 a year!