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Regulatory and Rate Matters Regulatory and Rate Matters (Tables)

12 Months Ended

Dec. 31, 2020

Regulated Operations [Abstract]

Schedule of Rate Increases for Transmission Costs

The following sets forth TNMP’s approved EECRF increases:

Effective Date						Aggregate Collection Amount						Performance Bonus
						(In millions)
March 1, 2018						$	6.0					$	1.1
March 1, 2019						5.6						0.8
March 1, 2020						5.9						0.8

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)
March 27, 2018						$	32					$	0.6
March 21, 2019						111.8						14.3
September 19, 2019						21.9						3.3
March 27, 2020						59.2						7.8
October 7, 2020						10.8						2.0

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