Electricity Generation Aggregated by Maryland County

State Rank	County	Net Generation (Past Year)	Power Plants
#1	Calvert County, MD	14.9 TWh	3
#2	Prince George's County, MD	8.1 TWh	42
#3	Charles County, MD	3.9 TWh	6
#4	Cecil County, MD	3.6 TWh	10
#5	Anne Arundel County, MD	3.4 TWh	13
#6	Harford County, MD	1.9 TWh	20
#7	Montgomery County, MD	796.3 GWh	18
#8	Garrett County, MD	731.6 GWh	24
#9	Baltimore city, MD	378.0 GWh	11
#10	Queen Anne's County, MD	318.6 GWh	10
#11	Allegany County, MD	197.1 GWh	5
#12	Somerset County, MD	159.8 GWh	7
#13	Dorchester County, MD	103.8 GWh	8
#14	Washington County, MD	78.1 GWh	20
#15	Howard County, MD	74.2 GWh	26
#16	Frederick County, MD	71.2 GWh	11
#17	Baltimore County, MD	70.0 GWh	31
#18	Caroline County, MD	55.1 GWh	2
#19	Wicomico County, MD	44.6 GWh	11
#20	Worcester County, MD	34.3 GWh	5
#21	Carroll County, MD	24.4 GWh	4
#22	Kent County, MD	17.3 GWh	6
#23	Talbot County, MD	13.4 GWh	3

Net Generation data is based on the last 12 months since Jun 2026

Totals are based on the most recent 12 months net generation

List of All Maryland Counties