Electricity Generation Aggregated by Maine County

State Rank	County	Net Generation (Past Year)	Power Plants
#2	Penobscot County, ME	2.6 TWh	51
#4	Somerset County, ME	1.6 TWh	38
#13	Kennebec County, ME	209.2 GWh	34
#8	Aroostook County, ME	667.5 GWh	33
#6	Androscoggin County, ME	764.8 GWh	32
#11	York County, ME	312.5 GWh	26
#1	Cumberland County, ME	4.1 TWh	25
#3	Oxford County, ME	1.7 TWh	24
#7	Franklin County, ME	764.7 GWh	18
#10	Hancock County, ME	483.2 GWh	16
#12	Waldo County, ME	282.9 GWh	10
#5	Washington County, ME	941.9 GWh	10
#15	Knox County, ME	22.2 GWh	6
#14	Sagadahoc County, ME	65.0 GWh	5
#16	Lincoln County, ME	21.0 GWh	4
#9	Piscataquis County, ME	506.7 GWh	4

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

Totals are based on the most recent 12 months net generation

List of All Maine Counties