1. A system comprising: at least one computing device configured to verify a forecast of a power network load for a component by performing actions including: obtaining a set of load data for the component in the power network over a period; identifying similar load patterns in the set of load data using a pattern recognition technique, independent of at least one of: a scale for a component load, a predetermined minimum component load value or a predetermined maximum component load value; grouping the identified similar load patterns into distinct groups based upon the identified similar load patterns in the set of load data; categorizing at least one of the distinct groups according to a recurring event associated with a load pattern in the at least one distinct group; and providing the at least one categorized group for verifying the forecast of the power network load.