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Commitments and contingencies (Tables) - HECO (Hawaiian Electric Company, Inc. and Subsidiaries) | 9 Months Ended
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Sep. 30, 2013
Hawaiian Electric Company, Inc. and Subsidiaries |
Regulatory projects and legal obligations |
Schedule of reductions from the interim D&O | Maui Electric 2012 test year rate case. On May 31, 2013, the PUC issued a final D&O in the Maui Electric 2012 test year rate case. Final rates became effective August 1, 2013. The final D&O approved an increase in annual revenues of $5.3 million, which is $7.8 million less than the interim increase that had been in effect since June 1, 2012. Reductions from the interim D&O relate primarily to:
(in millions) |
Lower ROACE | $ | 4.0 |
Customer Information System expenses | 0.3 |
Pension and OPEB expense based on 3-year average | 1.5 |
Integrated resource planning expenses | 0.9 |
Operational and Renewable Energy Integration study costs | 1.1 |
Total adjustment | $ | 7.8 |
Schedule of changes in asset retirement obligation | Changes to the ARO liability included in “Other liabilities” on Hawaiian Electric’s balance sheet were as follows:
|  | Nine months ended September 30
(in thousands) |  | 2013 |  | 2012
Balance, beginning of period |  | $ | 48,431 |  |  | $ | 50,871 |
Accretion expense |  | 833 |  |  | 1,233 |
Liabilities incurred |  | — |  |  | — |
Liabilities settled |  | (1,165 | ) |  | (2,788 | )
Revisions in estimated cash flows |  | (916 | ) |  | — |
Balance, end of period |  | $ | 47,183 |  |  | $ | 49,316 |

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- Definition Tabular disclosure of reductions from the interim decision and order. + References No definition available. + Details
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- Definition Tabular disclosure of the changes in carrying amount of a liability for asset retirement obligations, for changes such as new obligations, changes in estimates of existing obligations, spending on existing obligations, property dispositions, and foreign currency translation. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 410 -SubTopic 30 -Section 50 -Paragraph 5 -URI http://asc.fasb.org/extlink&oid=6393242&loc=d3e13201-110859 + Details
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