LOLE. The number of days per year for which the available generation capacity is insufficient.
Last Updated: June 20, 2025
Source:
Loss-of-Load Expectation (LOLE) is generally defined as the number of days per year for which the available generation capacity is insufficient to serve the demand at least once during that day. This metric is not being reported as part of this assessment. A criterion of one day in 10 years is an often used standard for LOLE.