Electric Utility Rankings
Rankings built from EIA Form 861 2025 filings.
Largest U.S. Electric Utilities by Customers
The 100 largest electric utilities in the United States by customers served, 2025.
Largest U.S. Electric Utilities by Electricity Sales
The 100 largest electric utilities by electricity sold (GWh), 2025.
Largest U.S. Electric Utilities by Revenue
The 100 largest electric utilities by retail revenue, 2025.
Cheapest Residential Electricity by Utility
Electric utilities with the lowest average residential rates in 2025 (10,000+ residential customers).
Most Expensive Residential Electricity by Utility
Electric utilities with the highest average residential rates in 2025 (10,000+ residential customers).
Cheapest Commercial Electricity by Utility
Electric utilities with the lowest average commercial rates in 2025 (1,000+ commercial customers).
Cheapest Industrial Electricity by Utility
Electric utilities with the lowest average industrial rates in 2025 (50+ GWh of industrial sales).
Most Reliable Electric Utilities (Lowest Outage Minutes)
U.S. electric utilities with the lowest SAIDI - average outage minutes per customer - in 2025.
Least Reliable Electric Utilities (Highest Outage Minutes)
U.S. electric utilities with the highest SAIDI - average outage minutes per customer - in 2025.
Utilities With the Most Customer (Net-Metered) Solar
Electric utilities ranked by customer-sited net-metered generation capacity, 2025.
Highest Smart Meter (AMI) Adoption by Utility
Electric utilities with the highest share of advanced (AMI) smart meters, 2025.
Fastest-Growing Electric Utilities, 2021-2025
Electric utilities ranked by customer growth from 2021 to 2025 (10,000+ customers in 2021).