v3.20.1

Revenue from contracts (Tables)

3 Months Ended

Mar. 31, 2020

Revenue from contracts

Schedule of disaggregation of revenue

		Three Months Ended March 31, 2020
														Consolidated
		Solid Fuel			Natural Gas			Hydroelectric			Corporate			Total
Project revenue:
Energy sales		$	16.8		$	6.2		$	17.7	$		—		$	40.7
Energy capacity revenue			6.3			21.7			—			—			28.0
Steam energy and capacity revenue			—			2.7			—			—			2.7
Waste heat revenue			0.3			—			—			—			0.3
Ancillary and transmission services			—			0.7			0.7			—			1.4
Asset management and operation			—			—			—			0.2			0.2
Miscellaneous revenue			—			(0.5)			—			—			(0.5)
			23.4			30.8			18.4			0.2			72.8

		Three Months Ended March 31, 2019
															Consolidated
			Solid Fuel			Natural Gas			Hydroelectric			Corporate			Total
Project revenue:
Energy sales		$	10.4		$	9.0		$	17.6		$	—		$	37.0
Energy capacity revenue			9.3			20.9			—			—			30.2
Steam energy and capacity revenue			—			0.6			—			—			0.6
Ancillary and transmission services			—			4.3			0.8			—			5.1
Asset management and operation			0.1			(0.1)			—			0.2			0.2
Miscellaneous revenue			—			(0.1)			—			—			(0.1)
			19.8			34.6			18.4			0.2			73.0

X

- Definition

Tabular disclosure of disaggregation of revenue into categories depicting how nature, amount, timing, and uncertainty of revenue and cash flows are affected by economic factor.

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 606
-SubTopic 10
-Section 50
-Paragraph 5
-URI http://asc.fasb.org/extlink&oid=118956577&loc=SL49130545-203045

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X

- References

No definition available.

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