Commitments and contingencies (Tables) - HECO (Hawaiian Electric Company, Inc. and Subsidiaries)

3 Months Ended

Mar. 31, 2013

Hawaiian Electric Company, Inc. and Subsidiaries

Regulatory projects and legal obligations

Schedule of changes in asset retirement obligation

(in thousands)	2013			2012
Balance, January 1	$	48,431		$	50,871
Accretion expense	124			451
Liabilities incurred	—			—
Liabilities settled	(642		)	(210		)
Revisions in estimated cash flows	—			—
Balance, March 31	$	47,913		$	51,112