The Energy Evolution of a Light Bulb
While global carbon emissions are still rising, unfortunately, the energy use in American households has declined over the past eight years. And it seems that a lot of that decline is due to a simple change with a big impact: swapping out incandescent bulbs for LEDs.
Those who have been following Solar One for a long time might remember our TruLight program, which taught high school students business skills while also spreading the word about the most energy efficient bulbs available at the time: CFLs.
And while the industry has moved on to even more efficient, long lasting and environmentally friendly LEDs, the savings continues to be profound as the price of LED bulbs continues to fall and more and more incandescents are replaced.
The switch to more efficient lighting has been relatively rapid, according to Lucas Davis, an energy economist at the Haas School of Business, part of the University of California, Berkeley, because of the short lifespan of traditional light bulbs. While consumers may replace an old refrigerator or dishwasher with an energy-saving model once a decade, incandescent bulbs last only about a year before they need replacing.
And that replacement yields huge relative savings.
“When you take out incandescent light bulbs and replace them with LEDs, the amount of electricity you consume goes down more than 80 percent,” Dr. Davis said. “There’s nothing else like that.”
You can read more about this on the NY Times website here.