Electric Utilities

918 U.S. electric distribution utilities with SAIDI and SAIFI reliability data drawn from the U.S. Energy Information Administration EIA Form 861 annual electric power industry survey (2020-2023 filing years, last refreshed June 2026). According to the EIA, the national nMED SAIDI average was approximately 146 minutes per customer per year in 2022 (excluding major event days). See our methodology for IEEE Standard 1366 definitions and refresh cadence.

Utility	State	Type	SAIDI 2023	SAIFI 2023
Mt Wheeler Power, Inc	NV	Cooperative	-	-
Nantucket Electric Co	MA	IOU	44.5	0.29
Nashville Electric Service	TN	Municipal	1312.3	3.03
Natchez Trace Elec Power Assn	MS	Cooperative	675.6	5.75
Navajo Tribal Utility Authority	AZ	State	435.6	4.53
Navasota Valley Elec Coop, Inc	TX	Cooperative	3968.8	4.92
Nebraska Public Power District	NE	Municipal	69.7	0.60
Nevada Power Co	NV	IOU	72.0	0.62
New Hampshire Elec Coop Inc	NH	Cooperative	1084.9	3.88
New River Light & Power Co	NC	State	37.5	0.44
New Smyrna Beach City of	FL	Municipal	66.3	0.97
New York State Elec & Gas Corp	NY	IOU	341.2	1.86
Newberry Electric Coop, Inc	SC	Cooperative	271.9	-
Newnan Wtr, Sewer & Light Comm	GA	Municipal	22.1	0.70
Niagara Mohawk Power Corp.	NY	IOU	207.9	1.14
NineStar Connect	IN	Cooperative	164.5	3.04
Noble County R E M C	IN	Cooperative	226.8	1.94
Nodak Electric Coop Inc	ND	Cooperative	302.2	1.56
Nolin Rural Electric Coop Corp	KY	Cooperative	730.0	1.91
Norris Public Power District	NE	Municipal	239.0	1.78
North Arkansas Elec Coop, Inc	AR	Cooperative	1809.5	3.14
North Central Elec Coop, Inc - (OH)	OH	Cooperative	109.9	-
North East Mississippi EPA	MS	Cooperative	169.3	0.94
North Georgia Elec Member Corp	GA	Cooperative	254.1	2.29
North Plains Electric Coop Inc	TX	Cooperative	396.6	-
North West Rural Electric Coop	IA	Cooperative	57.1	0.61
Northcentral Mississippi E P A	MS	Cooperative	405.6	3.25
Northeast Louisiana Power Coop Inc.	LA	Cooperative	3.3	2.59
Northeastern Rural E M C	IN	Cooperative	45.1	0.86
Northern Electric Coop, Inc	SD	Cooperative	73.9	0.67
Northern Indiana Pub Serv Co	IN	IOU	320.0	1.14
Northern Lights, Inc	ID	Cooperative	291.1	-
Northern Neck Elec Coop, Inc	VA	Cooperative	128.8	1.14
Northern Plains Electric Coop	ND	Cooperative	551.4	2.14
Northern States Power Co	MI	IOU	245.2	1.59
Northern States Power Co - Minnesota	MN	IOU	168.4	1.06
Northern Virginia Elec Coop	VA	Cooperative	110.7	0.88
Northern Wasco County PUD	OR	Municipal	12.4	0.07
NorthWestern Energy - (SD)	SD	IOU	116.5	1.37
NorthWestern Energy LLC - (MT)	MT	IOU	102.5	0.93
NSTAR Electric Company	MA	IOU	189.8	0.88
Nueces Electric Cooperative	TX	Cooperative	418.1	3.41
Oakdale Electric Coop	WI	Cooperative	156.0	1.17
Oconomowoc Utilities	WI	Municipal	11.0	0.12
Ohio Edison Co	OH	IOU	575.3	1.48
Ohio Power Co	OH	IOU	326.1	1.24
Okefenoke Rural El Member Corp	FL	Cooperative	787.0	4.32
Oklahoma Electric Coop Inc	OK	Cooperative	327.3	2.50
Oklahoma Gas & Electric Co	AR	IOU	492.0	1.80
Omaha Public Power District	NE	Municipal	80.1	0.55

Page 13 of 19

Previous Next

Compiled by PlainUtility