Electricity Generation Aggregated by Maryland County

State Rank	County	Net Generation (Past Year)	Power Plants
#21	Worcester County, MD	13.5 GWh	4
#18	Wicomico County, MD	42.9 GWh	8
#13	Washington County, MD	76.6 GWh	19
#22	Talbot County, MD	9.5 GWh	3
#12	Somerset County, MD	157.0 GWh	7
#11	Queen Anne's County, MD	257.4 GWh	9
#2	Prince George's County, MD	6.9 TWh	37
#8	Montgomery County, MD	766.5 GWh	18
#20	Kent County, MD	17.7 GWh	6
#15	Howard County, MD	63.5 GWh	25
#6	Harford County, MD	1.9 TWh	19
#9	Garrett County, MD	628.6 GWh	16
#16	Frederick County, MD	57.7 GWh	11
#17	Dorchester County, MD	51.1 GWh	7
#3	Charles County, MD	4.8 TWh	6
#4	Cecil County, MD	3.5 TWh	9
#19	Carroll County, MD	24.8 GWh	4
#23	Caroline County, MD	1.3 GWh	2
#1	Calvert County, MD	14.8 TWh	2
#14	Baltimore County, MD	65.8 GWh	26
#10	Baltimore city, MD	362.6 GWh	11
#5	Anne Arundel County, MD	2.6 TWh	12
#7	Allegany County, MD	844.6 GWh	5

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

Totals are based on the most recent 12 months net generation

List of All Maryland Counties