Regulatory and Rate Matters Regulatory and Rate Matters (Tables)

12 Months Ended

Dec. 31, 2019

Regulated Operations [Abstract]

Schedule of Energy/Capacity Transactions

Information about PNM’s purchases and sales is as follows:

	Sales			Purchases
	GWh	Amount		GWh	Amount
		(In millions)			(In millions)
Year Ended December 31, 2019	766.4	$	21.7	693.6	$	21.8
Year Ended December 31, 2018	725.7	25.8		822.7	28.7
Year Ended December 31, 2017	827.1	23.6		849.0	24.2

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)
March 14, 2017	$	30.2	$	4.8
September 13, 2017	27.5		4.7
March 27, 2018	32.0		0.6
March 21, 2019	111.8		14.3
September 19, 2019	21.9		3.3

The following sets forth TNMP’s approved EECRF increases:

Effective Date	Aggregate Collection Amount		Performance Bonus
	(In millions)
March 1, 2017	$	6.0	$	0.8
March 1, 2018	6.0		1.1
March 1, 2019	5.6		0.8