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
Lyntegar Electric Coop, Inc	TX	Cooperative	257.3	-
Macon Electric Coop	MO	Cooperative	101.5	-
Madison Gas & Electric Co	WI	IOU	64.0	0.28
Magic Valley Electric Coop Inc	TX	Cooperative	502.6	-
Magnolia Electric Power Assn	MS	Cooperative	2768.4	-
Manitowoc Public Utilities	WI	Municipal	70.9	0.65
Maquoketa Valley Rrl Elec Coop	IA	Cooperative	211.4	1.36
Marlboro Electric Coop, Inc	SC	Cooperative	-	-
Maryville Utilities	TN	Municipal	120.0	1.10
Massachusetts Electric Co	MA	IOU	349.4	1.16
Matanuska Electric Assn Inc	AK	Cooperative	606.7	3.24
Maui Electric Co Ltd	HI	IOU	2344.1	2.56
McKenzie Electric Coop Inc	ND	Cooperative	142.5	1.24
McMinnville Electric System	TN	Municipal	25.9	0.59
Meade County Rural E C C	KY	Cooperative	634.7	1.92
Mecklenburg Electric Cooperative	VA	Cooperative	244.4	2.06
Medina Electric Coop, Inc	TX	Cooperative	271.4	2.12
Meeker Coop Light & Power Assn	MN	Cooperative	77.1	1.12
Menard Electric Coop	IL	Cooperative	446.7	2.47
Meriwether Lewis Electric Coop	TN	Cooperative	554.9	2.21
Metropolitan Edison Co	PA	IOU	427.0	1.46
Mid-Carolina Electric Coop Inc	SC	Cooperative	137.1	1.63
Mid-South Electric Coop Assn	TX	Cooperative	409.0	2.20
MidAmerican Energy Co	IA	IOU	80.0	0.83
Middle Tennessee E M C	TN	Cooperative	73.8	1.13
Midland Power Coop	IA	Cooperative	80.7	1.03
Midstate Electric Coop, Inc	OR	Cooperative	208.1	-
Midwest Electric Member Corp - (NE)	NE	Cooperative	61.2	0.54
Midwest Electric, Inc - (OH)	OH	Cooperative	329.6	1.67
Midwest Energy Cooperative - (MI)	MI	Cooperative	558.0	2.00
Midwest Energy Inc - (KS)	KS	Cooperative	206.4	1.51
MiEnergy Cooperative	IA	Cooperative	42.5	0.49
Mille Lacs Energy Cooperative	MN	Cooperative	153.6	1.18
Minnesota Valley Coop L&P Assn	MN	Cooperative	93.9	-
Minnesota Valley Electric Coop	MN	Cooperative	42.5	0.43
Mississippi Power Co	MS	IOU	245.5	1.07
Missoula Electric Coop, Inc	MT	Cooperative	165.2	1.19
Mitchell Electric Member Corp	GA	Cooperative	755.7	4.30
Modesto Irrigation District	CA	Municipal	60.1	0.60
Mohave Electric Cooperative, Inc.	AZ	Cooperative	141.3	-
Monongahela Power Co	WV	IOU	744.0	2.57
Montana-Dakota Utilities Co	MT	IOU	112.4	1.29
Moon Lake Electric Assn Inc	CO	Cooperative	121.9	2.20
Morgan County Rural Elec Assn	CO	Cooperative	144.2	-
Mountain Electric Coop, Inc	NC	Cooperative	186.6	1.95
Mountain Parks Electric, Inc	CO	Cooperative	73.5	0.88
Mountain View Elec Assn, Inc	CO	Cooperative	63.1	0.52
Mountrail-Williams Elec Coop	ND	Cooperative	241.8	1.39
MPD Electric Cooperative	SC	Cooperative	258.3	2.02
Mt Carmel Public Utility Co	IL	IOU	234.7	3.24

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Compiled by PlainUtility