Televisions account for a growing portion of residential energy use worldwide. In the U.S. alone, TVs consume approximately 50 billion kWh of energy each year. Energy efficiency standards and labeling (S&L) programs, including the EPA’s ENERGY STAR program, have saved significant energy; now the Department of Energy is developing a federal test procedure to measure the energy efficiency of various television sets.
In support of these efforts, CLTC partnered with the Collaborative Labeling & Appliance Standards Program (CLASP) to conduct a field study of typical background lighting levels during in-home TV viewing. Data collected through the study—based on a diverse sample of 60 homes, 30 in Sacramento and 30 in the Washington, D.C. area—will enable ENERGY STAR, the DOE, and other regulatory entities to measure the energy consumption of TVs when the automatic brightness control (ABC) feature is engaged in a way that more accurately reflects actual use.