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Regulatory and Rate Matters (Tables)

6 Months Ended

Jun. 30, 2023

Regulated Operations [Abstract]

Schedule of Rate Increases for Transmission Costs

The following sets forth TNMP’s recent interim transmission cost rate increases:


Effective Date						Approved Increase in Rate Base						Annual Increase in Revenue
						(In millions)














September 20, 2021						$41.2						$6.3
March 25, 2022						$95.6						$14.2
September 22, 2022						$36.0						$5.3
May 12, 2023						$150.5						$19.4

Schedule Of Interim Distribution Rate Increases

The following sets forth TNMP’s recent interim distribution rate increases:


Effective Date						Approved Increase in Rate Base						Annual Increase in Revenue
						(In millions)














September 1, 2021						$104.5						$13.5
September 1, 2022						$95.7						$6.8
September 1, 2023						$157.0						$14.5