In the U.S., states lead the development of climate and energy policies to drive and respond to the energy transition. Using CNEE’s free online tool, the Advanced Energy Legislation Tracker (AEL Tracker), the 2020 Year in Review report (pdf) summarizes the 342 advanced energy-related bills enacted by 46 states and the District of Columbia in 2020. An addendum to the 2020 publication, Seven Years of Advanced Energy Action: 2013 – 2019 State Legislation in Review (pdf), the new report highlights the trends and new policy developments of a year marked by the COVID-19 pandemic, supply chain shortages, travel restrictions, rallies and protests, and climate change-induced extreme weather events.