Reliability Is A Commitment
Reliable power is one of Duke Energy’s core commitments to our customers – the more than 24 million people we serve. We set reliability targets each year for the number and duration of power outages and power generation fleet performance.
We experienced a large number of mid-size storms in 2015 which caused us to miss our internal target. However, the longer-term trend in number of outages continues to improve.
Our diverse generation fleet, which includes fossil, nuclear, hydro, wind and solar resources, reliably met challenging demands, including record-breaking peak load in February 2015, and peak summer loads in June.
Nuclear fleet capacity factor, which is a measure of generation reliability, improved from 93.2 percent in 2014 to 94.2 percent in 2015, and exceeded 90 percent for the 17th consecutive year. The regulated fossil/hydro fleet improved commercial availability performance from 85.9 percent in 2014 to 87.4 percent in 2015.
The commercial renewables fleet's commercial availability declined from 96 percent in 2014 to 93.3 percent in 2015 because of unscheduled maintenance activities.