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LEDs are the champions of energy efficiency

LEDs are the champions of energy efficiency

By BizLED Bureau

Dec 7, 2015: LED technology is being upgraded so fast that LED light bulbs are becoming more affordable and efficient in replacing compact fluorescent bulbs (CFLs). Now the average efficiency of an LED light bulb is about 100 lumens per watt, which is about 20% higher than the LED bulbs available last year, whereas the efficiency of CFL bulbs has stayed flat?between 55 and 70 lumens per watt. Incandescent bulbs, by comparison, provided up to only 18 lumens per watt before 2012 when a nationwide phase-out was started.

Home energy efficiency is a key factor in the US? proposed Clean Power Plan that aims for a reduction in carbon dioxide emissions from coal-fired power plants to resist climate change. The more energy efficient a home is, the less electricity it consumes and fewer CO2 emissions.

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There are several reasons for LED technology to advance so fast. According to US Department of Energy, there have been ongoing improvements in LED chips, optics, thermal management and package configuration that contribute to greater efficiency while manufacturing costs have come down. Between 2011 and 2012, global sales of LED bulbs increased by 22%, and by 2030, the LEDs could account for 75% of all lights sold worldwide. The retail price of LED bulbs is also coming down, as low as that of a CFL bulb. A 60 watt-equivalent LED bulb was priced on Home Depot?s website for $6.97 whereas a similar 60 watt-equivalent CFL bulb was priced $5.97.

?LEDs are going to be the most expensive option, but they?ve come down in cost considerably even (compared to) months or years ago,? said U.S. Energy Information Administration analyst Owen Comstock. With the kind of energy efficiency LEDs provide, it?s good not only for your wallet but also for the climate.

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