Electricity Generation Aggregated by Maryland County

State Rank	County	Net Generation (Past Year)	Power Plants
#1	Calvert County, MD	14.8 TWh	2
#2	Prince George's County, MD	6.7 TWh	34
#3	Charles County, MD	3.7 TWh	6
#4	Cecil County, MD	3.2 TWh	7
#5	Anne Arundel County, MD	2.7 TWh	9
#6	Harford County, MD	1.9 TWh	18
#7	Allegany County, MD	725.5 GWh	4
#8	Montgomery County, MD	689.7 GWh	18
#9	Garrett County, MD	602.3 GWh	12
#10	Baltimore city, MD	378.3 GWh	11
#11	Queen Anne's County, MD	198.6 GWh	9
#12	Somerset County, MD	151.4 GWh	7
#13	Washington County, MD	79.6 GWh	19
#14	Baltimore County, MD	60.5 GWh	25
#15	Frederick County, MD	58.8 GWh	11
#16	Dorchester County, MD	55.8 GWh	6
#17	Wicomico County, MD	43.9 GWh	7
#18	Howard County, MD	36.8 GWh	21
#19	Carroll County, MD	24.7 GWh	4
#20	Kent County, MD	18.3 GWh	6
#21	Worcester County, MD	13.6 GWh	4
#22	Caroline County, MD	2.6 GWh	2
#23	Talbot County, MD	520.0 MWh	3

Net Generation data is based on the last 12 months since Jan 2025

Totals are based on the most recent 12 months net generation

List of All Maryland Counties