Revenues

6 Months Ended

Jun. 30, 2022

Revenue from Contract with Customer [Abstract]

Revenue

Revenue is classified by the type of goods/services rendered and market/customer type. SPS’ operating revenues consisted of the following:

	Three Months Ended June 30
(Millions of Dollars)	2022		2021
Major revenue types
Revenue from contracts with customers:
Residential	$	100	$	85
Commercial and Industrial	264		201
Other	13		10
Total retail	377		296
Wholesale	109		118
Transmission	74		72
Other	3		2
Total revenue from contracts with customers	563		488
Alternative revenue and other	95		10
Total revenues	$	658	$	498
	Six Months Ended June 30
(Millions of Dollars)	2022		2021
Major revenue types
Revenue from contracts with customers:
Residential	$	197	$	176
Commercial and Industrial	486		389
Other	21		19
Total retail	704		584
Wholesale	178		676
Transmission	146		143
Other	6		5
Total revenue from contracts with customers	1,034		1,408
Alternative revenue and other	101		24
Total revenues	$	1,135	$	1,432