This Utility was awarded a CEC PEV Readiness grant to plan for necessary electric system infrastructure, installation and permitting practices, and rate structures to accommodate an increased number of residential Plug-in Vehicle (PEV) charging stations. SEnergy prepared an engineering analysis, a comprehensive electric cost of service (COS) study, and an associated rate design that prepared the Utility for the impact of PEV charging stations at varying saturation levels. The scope of work for the Cost of Service and Rate Study work included: Project kickoff, development of goals/deliverables; Data collection and assimilation; Analysis of data received from the Client; Analysis of available historical load research data for all existing customer groups; Analyzing existing customer groups and rate schedules, and propose additions or deletions; Developing cost of service and rate design model; Reviewing allocation models and methodologies with input from the City staff; Revising and presenting final model with inputs for scenario modeling; Presentation of Financial Forecast and Cost of Service studies to City Council; Developing comprehensive proof of revenues and rate design model; Validating model with input from the City staff; Revising and presenting final model with inputs for scenario modeling; Reviewing rate ordinances for customer classes; and Finalizing and presenting final rate ordinances to City Council. The scope of work for the CEC PEV Readiness Grant included: Developing permitting and inspection processes and recommendations for residential PEV programs; Developing the electric system model and reviewing local load capacity and methods for managing distribution; Performing a comprehensive study on impacts on the City’s electric distribution system from the addition of level 1 and level 2 PEV charging stations on residential homes at various saturation levels; Determining required system improvements and cost estimates for improvements; Reviewing and studying possible issues using solar PV and energy storage; Reviewing above findings and reporting; Preparing rate structure; and Finalizing and presentation to City Council. (2018-Current)
