Revenue and Cost of Sales and Services (Tables)

12 Months Ended

Dec. 31, 2018

Disclosure of cost of sales and services [Abstract]

Schedule of Revenue

	For the Year Ended December 31,
	2018		2017		2016
	$ Thousands
Revenue from sale of electricity		347,167		349,957		309,249
Revenue from sale of steam		16,095		15,438		14,939
Others		750		309		65
		364,012		365,704		324,253

Schedule of Cost of Sales and Services

	For the Year Ended December 31,
	2018		2017		2016
	$ Thousands
Fuels		118,698		129,788		125,528
Electricty and infrastructure services		125,623		122,340		112,038
Salaries and related expenses		6,097		5,822		5,305
Generation and operating expenses and outsourcing		6,509		6,432		6,119
Third party services		1,548		1,734		1,764
Other		1,040		1,020		912
		259,515		267,136		251,666

The following footnote in the financial statements have been restated to be comparable with current year presentation:

For the year ended December 31, 2017	As previously stated		Effect of restatements			Restated
	$ Thousands
Fuels		-		129,788			129,788
Fuel, gas and lubricants		137,832		(137,832	)		-
Electricity and infrastructure services		-		122,340			122,340
Capacity and energy purchases and transmission costs		50,973		(50,973	)		-
Regulatory expenses		62,908		(62,908	)		-
Salaries and related expenses		6,269		(447	)		5,822
Generation and operating expenses and outsourcing		-		6,432			6,432
Third party services		2,670		(936	)		1,734
Other		6,484		(5,464	)		1,020
		267,136		-			267,136

For the year ended December 31, 2016	As previously stated		Effect of restatements			Restated
	$ Thousands
Fuels		-		125,528			125,528
Fuel, gas and lubricants		133,012		(133,012	)		-
Electricty and infrastructure services		-		112,038			112,038
Capacity and energy purchases and transmission costs		57,310		(57,310	)		-
Regulatory expenses		48,509		(48,509	)		-
Salaries and related expenses		5,942		(637	)		5,305
Generation and operating expenses and outsourcing		-		6,119			6,119
Third party services		2,890		(1,126	)		1,764
Other		4,003		(3,091	)		912
		251,666		-			251,666