Residential Zero Net Energy Building Integration Cost Analysis

Financial, Grid Integration, Renewables

California Public Utilities Commission commissioned the study of how an influx of PVs will impact the distribution grid, if left unmitigated. The purpose of this study is to analyze the grid integration costs of customer-sited PV over the next ten years under a base scenario of trajectory PV growth compared to a ZNE policy scenario that requires 100% ZNE on new homes by 2020. Note that the costs identified in this report are distribution interconnection upgrade costs only, and do not include other costs associated with large amounts of variable generation across the system.