Estimates in the new U.S. Lighting Market Characterization (LMC) were based on building-lighting audits, industry surveys, national lighting product shipment data, and interviews with lighting professionals and subject matter experts.
(Source: The U.S. Department of Energy) |
Among the key findings:
U.S. lighting as a whole consumed 641 TWh of electricity, or approximately 17% of the country's total electricity use.
Approximately 37% of the lighting electricity was consumed in the commercial sector. The outdoor sector was the second-largest lighting electricity consumer, at 32% of overall consumption, while the residential sector ranked third at
23%.
Overall, LED lighting penetration into all sectors has made significant strides since 2010, representing 8% of overall lighting inventory in 2015 vs. less than 1% in 2010.
The outdoor sector ranks highest in LED penetration, at 23% of that sector's lighting inventory (up from 8% in 2010) -- followed by the commercial (10%, up from 2%), residential (7%, up from less than 1%), and industrial (4%, up from less than 1%) sectors.
Across all sectors, the lighting stock has become more efficient, with the average system efficacy of installed lighting increasing from 36 lm/W in 2001, to 39 lmW in 2010, and now to 51 lm/W in 2015. Overall, average lighting efficacy in the U.S. has increased by more than 40% since 2001.
For a closer look at the findings, read the full report.