IMPACT: Our analysis assumes that LEDs will become ubiquitous by 2050, encompassing 90 percent of the household lighting market, and 82 percent of commercial lighting. As LEDs replace less-efficient lighting, 7.8 gigatons of carbon dioxide emissions could be avoided in residences and 5 gigatons in commercial buildings. Additional gains, not counted here, will come from replacing off-grid kerosene lighting with solar-LED technology.
