Photo of Megan Day

Megan Day

Senior Energy Planner


Megan Day leads analysis, projects, and technical assistance on state and local clean energy planning and policy, energy equity, and large-scale solar development. She led the development of city energy profiles for more than 23,400 U.S. cities through the Cities Leading through Energy Analysis and Planning project and currently leads the State and Local Planning for Energy platform, which provides jurisdictionally-resolved clean energy potential and projections. She also leads NREL's Sustainable Communities Catalyzer. Day is a certified urban and regional planner with a background in non-profit management, renewable energy development, and climate action planning.

Research Interests

Pathways to high-penetration municipal clean energy goals

Energy equity

Low-impact solar development


M.A., Urban and Regional Planning, University of Colorado

B.A., History, Colorado College

Featured Work

State and Local Planning for Energy Platform

Seven Steps to Successfully Manage Large-Scale Solar Development, Planning (2020)

Sector-Specific Methodologies for Subnational Energy Modeling, NREL Technical Report (2019)

Low-Income Energy Affordability Data Tool Methodology, NREL Technical Report (2019)

Navajo Generating Station and Federal Resource Planning – Volume 2: Update, NREL Technical Report (2019)

City Energy: From Data to Decisions, Department of Energy (2017, 2018)

Clean Energy in City Codes: A Baseline Analysis of Municipal Codification across the U.S., NREL Technical Report (2016)

Navajo Generating Station and Federal Resource Planning – Volume 1: Sectoral, Technical, and Economic Trends, NREL Technical Report (2016)

City-Level Energy Decision Making: Data Use in Energy Planning, Implementation, and Evaluation in U.S. Cities, NREL Technical Report (2015)

Local Solar: What Do Leading Solar Communities Have in Common? It May Not Be What You ExpectPlanning (2015)