2015 Standard Scenarios Annual Report: U.S. Electric Sector Scenario Exploration

This report is a description of 19 standard scenarios along with the base structure and assumptions for the Regional Energy Deployment System (ReEDS) model v.2015.1, which is the tool currently used for running the scenarios. The primary purpose of the report is to describe the Standard Scenarios and the solution space of those scenarios using this version of the ReEDS model. This is done through scenarios uses a consistent set of data and assumptions. Together, they establish a baseline understanding of the electric sector today and a range of projected pathways and form the basis for new studies and analysis. The 19 standard scenarios identify a range based on current understanding and projections; they do not represent predictions of how the electric sector will evolve. Rather, they map out likely trajectories within which the actual pathway may occur. Additionally, the report gives a basic description of the structure and assumption of the ReEDS model. The report, coupled with the ATB, also provides a resource for analysts and decision makers interested in the current and future U.S. electricity system. a description of the Standard Scenarios, which span an assumption space representing a range of possible future trajectories of major drivers. This assumption space incorporates both the inputs from the Annual Technology Baseline and the structure of the ReEDS model.