Revenue

12 Months Ended

Dec. 31, 2018

Revenues [Abstract]

Revenue

9. Revenue

The following disaggregates TEC’s revenue by major source:

(millions)	Tampa								Tampa Electric
For the year ended December 31, 2018	Electric			PGS		Eliminations			Company
Electric revenue
Residential	$	1,067		$	0	$	0		$	1,067
Commercial		582			0		0			582
Industrial		161			0		0			161
Regulatory deferrals and unbilled revenue		(2	)		0		0			(2	)
Other (1)		258			0		(3	)		255
Total electric revenue		2,066			0		(3	)		2,063
Gas revenue
Residential		0			157		0			157
Commercial		0			151		0			151
Industrial (2)		0			21		0			21
Other (3)		0			159		(27	)		132
Total gas revenue		0			488		(27	)		461
Total revenue	$	2,066		$	488	$	(30	)	$	2,524

(1)    Other includes sales to public authorities, off-system sales to other utilities and various other items.

(2)    Industrial includes sales to power generation customers.

(3)    Other includes off-system sales to other utilities and various other items.

Remaining Performance Obligations

Remaining performance obligations primarily represent lighting contracts and gas transportation contracts with fixed contract terms.  As of December 31, 2018, the aggregate amount of the transaction price allocated to remaining performance obligations was approximately $135 million. As allowed under ASC 606, this amount excludes contracts with an original expected length of one year or less and variable amounts for which TEC recognizes revenue at the amount to which it has the right to invoice for services performed. TEC expects to recognize revenue for the remaining performance obligations through 2033.