U.S. Department of Energy - Energy Efficiency and Renewable Energy
Building Technologies Office – News
DOE Releases Report on Energy Savings Potential of Solid-State Lighting
January 27, 2012
The U.S. Department of Energy (DOE) has published a report forecasting the energy savings potential of LED white-light sources compared with conventional white-light sources. Energy Savings Potential of Solid-State Lighting in General Illumination Applications compares the annual lighting energy consumption in the U.S. with and without the further market penetration of LED lighting. The energy savings potential is represented by the difference in energy consumption between the two scenarios.
The econometric model underlying the report relies on assumptions of efficacy, retail price, and operating life that are based on work conducted collaboratively by DOE and industry experts, including members of the Next Generation Lighting Industry Alliance.
- LED lighting is expected to represent 36 percent of lumen-hour sales on the general illumination market by 2020, and 74 percent by 2030.
- By 2030, the annual site energy savings from market penetration of LEDs will be approximately 300 terawatt-hours, or the equivalent annual electrical output of about 50 1,000-megawatt power plants. At today's energy prices, that equates to approximately $30 billion in savings in 2030 alone.
- Assuming the same mix of power stations, these savings would reduce greenhouse gas emissions by 210 million metric tons of carbon in 2030. The total energy consumption for lighting would decrease by roughly 46 percent relative to a scenario with no additional LEDs on the market – enough electricity to completely power nearly 24 million homes.
For more information, go to www.ssl.energy.gov/tech_reports.html.