v2.4.0.6

Commitments and contingencies (Tables) | 12 Months Ended
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Dec. 31, 2012
Commitments and contingencies |
Schedule of future minimum lease commitments under operating leases | Future minimum lease commitments under operating leases for the years ending after December 31, 2012, are as follows (in thousands):
2013 |  | $ | 1,048 |
2014 |  |  | 1,064 |
2015 |  |  | 677 |
2016 |  |  | 460 |
2017 |  |  | 451 |
Thereafter |  |  | 4,805 |
|  | $ | 8,505 |
Schedule of estimated commitments under transmission, interconnection and long-term service agreements | As of December 31, 2012, our commitments under such outstanding agreements are estimated as follows (in thousands):
2013 |  | $ | 3,178 |
2014 |  |  | 3,225 |
2015 |  |  | 4,744 |
2016 |  |  | 4,754 |
2017 |  |  | 4,615 |
Thereafter |  |  | 22,777 |
|  | $ | 43,293 |
Schedule of estimated commitments under fuel supply and transportation agreements | We have entered into long-term contractual arrangements to procure fuel and transportation services for our projects. As of December 31, 2012, our commitments under such outstanding agreements are estimated as follows (in thousands):
2013 |  | $ | 77,329 |
2014 |  |  | 80,862 |
2015 |  |  | 80,921 |
2016 |  |  | 82,722 |
2017 |  |  | 18,249 |
Thereafter |  |  | 114,054 |
|  | $ | 454,137 |

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- Definition Tabular disclosure of estimated amount of commitments required in the aggregate and for each of the five succeeding fiscal years from the balance sheet date. + References No definition available. + Details
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- Definition Tabular disclosure of estimated amount of commitments required long-term contractual arrangements to provide energy transmission services, operate and maintain an electrical interconnection facility and obtain maintenance services for combustion turbines, in the aggregate and for each of the five succeeding fiscal years from the balance sheet date. + References No definition available. + Details
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- Definition Tabular disclosure of future minimum payments required in the aggregate and for each of the five succeeding fiscal years for operating leases having initial or remaining noncancelable lease terms in excess of one year and the total minimum rentals to be received in the future under noncancelable subleases as of the balance sheet date. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 840 -SubTopic 20 -Section 50 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=6453985&loc=d3e41502-112717 + Details
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