Reliability Is A Priority
Delivering reliable power is a high priority for Duke Energy. Our outage statistics show a long-term trend of improving reliability both in the number and duration of outages.
To keep the trend moving in a positive direction, we identify locations on our system where we can make improvements to prevent outages. We also learn from weather events, which can have a big impact, and work to improve our responses to outages. Our ongoing focus is to take cost-effective actions to improve reliability, while keeping rates low.
Reliable service also requires a dependable fleet of power plants and each year we set aggressive goals to help drive their continuous reliability improvement. Our nuclear fleet’s capacity factor, which is a measure of generation reliability, improved from 90.4 percent in 2012 to 92.8 percent in 2013, and exceeded 90 percent for the 15th consecutive year.
Although the regulated fossil fleet performed when needed to meet our customers’ demand, it did not meet its aggressive 2013 reliability goal of 87.9 percent commercial availability.
The nonregulated fossil and renewables fleets had another good year of commercial availability and renewables yield above 90 percent, with a 91.9 percent result for 2013.