The United Stated Department of Energy (DOE) has published a new
report predicting the energy savings of LED-based white-light sources
compared with conventional white-lighting. The sixth version of the Energy
Savings Forecast of Solid-State Lighting in General Illumination Applications
compares the lighting energy consumed annually in the U.S. with and without
further adoption of LED lighting.
The report projects that by 2030, LEDs lighting will save an estimated 40%
compared to conventional light sources. At the current market adoption
trajectory, LED lighting is projected to reach 48 percent of the lumen-hour
sales of the general illumination market by 2020, and 84 percent by 2030.
By 2030 savings from LED lighting is expected to total 3.0 quads (261 TWh)
in that year alone, for more than $26 billion at today’s energy prices. The
report points out that is equivalent to the total energy consumed by almost 24
million U.S. homes today.
If the DOE reaches its ambitious goals for LED price and efficacy, LED
lighting will attain about 68 percent of market share in lumen-hour sales in
2020 and over 90% in 2030. The report forecasts that attaining these goals
would create additional energy savings of 20 percent in 2030 alone for a 60
percent total decrease in lighting energy consumption compared to the LED
lighting penetration at its current levels.