Assessing Changes in the Reliability of the US Electric Power System

Stanford Univ. | Lawrence Berkeley National Laboratory, US DOE
http://1.usa.gov/1EmVjrE

[Green Car Congress] In the most comprehensive analysis of electricity reliability trends in the United States, researchers at Lawrence Berkeley National Laboratory (Berkeley Lab) and Stanford University have found that, while, on average, the frequency of power outages has not changed in recent years, the total number of minutes customers are without power each year has been increasing over time.

The researchers pinpointed what utilities and their regulators refer to as “major events,” or events generally related to severe weather, as the principal driver for this trend. The finding suggests that increasingly severe weather events are linked to a 5-10% increase in the total number of minutes customers are without power each year, said Berkeley Lab Research Scientist and Stanford PhD candidate, Peter Larsen, the lead author of the report…

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