  Starting in early 2020, the novel coronavirus disease (COVID-19) severely
affected the U.S., causing substantial changes in the operations of bulk power
systems and electricity markets. In this paper, we develop a data-driven
analysis to substantiate the pandemic's impacts from the perspectives of power
system security, electric power generation, electric power demand and
electricity prices. Our results suggest that both electric power demand and
electricity prices have discernibly dropped during the COVID-19 pandemic.
Geographical variances in the impact are observed and quantified, and the bulk
power market and power system operations in the northeast region are most
severely affected. All the data sources, assessment criteria, and analysis
codes reported in this paper are available on a GitHub repository.
