We have recognized Asset Retirement Obligations (AROs) related to our wind turbines, coal-fired generation plants, solar facilities and natural gas combustion turbines. The cost of AROs includes items such as site restoration, closure of ash landfills, monitoring activities and the removal of certain structures.


(in thousands)	2026

Beginning Balance, January 1	$	43,987

Adjustments Due to Revisions in Cash Flow Estimates	(5,904)
Accrued Accretion	494
Settlements	(11)
Ending Balance, March 31	$	38,566

During the three months ended March 31, 2026, we completed our wind repowering project, which consisted of the replacement or upgrades of hubs, gearboxes, blades, generators and other components at several of our wind facilities. The completion of the project resulted in the extension of the estimated useful lives of these facilities, which directly impacts the timing and amount of the expected cash flows to be incurred to settle the associated retirement obligations. As such, we adjusted our estimated cash flows related to these facilities during the period, which resulted in a $5.9 million reduction in our estimated ARO liabilities , as well a related reduction to property, plant and equipment.

As of March 31, 2026 and December 31, 2025, $0.1 million was included in other current liabilities, and $38.5 million and $43.9 million, respectively, was included in other noncurrent liabilities in the consolidated balance sheets related to AROs.