v3.19.3.a.u2

Revenue from contracts (Tables) | 12 Months Ended
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Dec. 31, 2019
Revenue from contracts |
Schedule of disaggregation of revenue |
|  | Year Ended December 31, 2019
|  |  |  |  |  |  |  |  |  |  |  |  | Consolidated
|  | Solid Fuel |  | Natural Gas |  | Hydroelectric |  | Corporate |  | Total
Project revenue: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Energy sales |  | $ | 41.1 |  | $ | 31.0 |  | $ | 65.9 | $ |  | — |  | $ | 138.0
Energy capacity revenue |  |  | 38.7 |  |  | 86.7 |  |  | — |  |  | — |  |  | 125.4
Steam energy and capacity revenue |  |  | — |  |  | 11.7 |  |  | — |  |  | — |  |  | 11.7
Waste heat revenue |  |  | 0.2 |  |  | — |  |  | — |  |  | — |  |  | 0.2
Ancillary and transmission services |  |  | — |  |  | 4.7 |  |  | 2.9 |  |  | — |  |  | 7.6
Asset management and operation |  |  | — |  |  | — |  |  | — |  |  | 1.0 |  |  | 1.0
Miscellaneous revenue |  |  | — |  |  | (2.3) |  |  | — |  |  | — |  |  | (2.3)
|  |  | 80.0 |  |  | 131.8 |  |  | 68.8 |  |  | 1.0 |  |  | 281.6
|  | Year Ended December 31, 2018
|  |  |  |  |  |  |  |  |  |  |  |  |  |  | Consolidated
|  |  | Solid Fuel |  |  | Natural Gas |  |  | Hydroelectric |  |  | Corporate |  |  | Total
Project revenue: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Energy sales |  | $ | 37.4 |  | $ | 38.3 |  | $ | 55.2 |  | $ | — |  | $ | 130.9
Energy capacity revenue |  |  | 41.6 |  |  | 56.3 |  |  | — |  |  | — |  |  | 97.9
Steam energy and capacity revenue |  |  | 0.1 |  |  | 15.6 |  |  | — |  |  | — |  |  | 15.7
Waste heat revenue |  |  | 0.2 |  |  | — |  |  | — |  |  | — |  |  | 0.2
Enhanced dispatch contracts |  |  | — |  |  | 23.9 |  |  | — |  |  | — |  |  | 23.9
Ancillary and transmission services |  |  | 4.5 |  |  | 5.4 |  |  | 3.1 |  |  | — |  |  | 13.0
Asset management and operation |  |  | — |  |  | — |  |  | — |  |  | 1.0 |  |  | 1.0
Miscellaneous revenue |  |  | — |  |  | (0.3) |  |  | — |  |  | — |  |  | (0.3)
|  |  | 83.8 |  |  | 139.2 |  |  | 58.3 |  |  | 1.0 |  |  | 282.3
Schedule of receivables, contract assets and contract liabilities from contracts |
|  | December 31, |  | December 31,
|  | 2019 |  | 2018
Accounts receivables |  | $ | 30.4 |  | $ | 35.7
Contract liabilities |  |  | 0.3 |  |  | 0.1

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- Definition Tabular disclosure of contract balances and changes in contract balances. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 606 -SubTopic 10 -Section 50 -Paragraph 10 -URI http://asc.fasb.org/extlink&oid=118956577&loc=SL49130551-203045 + Details
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- 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 + Details
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