Evelyn S. in Chandler here. I'm looking at APS Schedule E-32 for a large retail client and the demand charge structure is confusing me. There are three different demand charges listed: Distribution Demand, Generation Demand, and Transmission Demand. Each has different rates and some have seasonal variations. Has anyone worked with this schedule recently? I can't find clear guidance on how these charges are calculated or applied.
Arizona Public Service Schedule E-32 Interpretation
Tony F. in Vegas. NV Energy has a similar three-part demand structure. Usually distribution demand is based on your peak kW during system peak hours, generation demand covers the cost of power supply, and transmission is for moving power across the grid. Check if APS defines specific measurement periods for each component. The seasonal variations typically reflect summer cooling loads vs winter demand patterns.