Electric utility segment |
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| Electric Utility Subsidiary [Abstract] | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Electric utility segment | Electric utility segment Consolidated variable interest entities. The HE AR INTER LLC and its direct subsidiary, HE AR BRWR LLC, (collectively, the Special Purpose Entities or SPEs) are bankruptcy remote, direct and indirect wholly owned subsidiaries of the Utilities. Pursuant to the asset-based lending facility (ABL Facility) credit agreement, the Utilities sell certain accounts receivable to the SPEs as collateral, which in turn, obtain financing from financial institutions. As of June 30, 2026, the ABL Facility remains undrawn and the SPEs have $319.5 million of net accounts receivable, included in “Customer accounts receivable, net,” and “Accrued unbilled revenues, net” on the Utilities’ Condensed Consolidated Balance Sheets and “Accounts receivable and unbilled revenues, net” on the Company’s Condensed Consolidated Balance Sheets. The SPEs are considered VIEs due to insufficient equity investment at risk. The most significant activities that impact the economic performance of the SPEs are cash and financing management. The Utilities are considered the primary beneficiary as the Utilities direct the activities related to cash and financing management and therefore, are required to consolidate the SPEs. Although the SPEs are direct and indirect wholly owned consolidated subsidiaries of the Utilities, the SPEs are legally separate from the Utilities. The assets of the SPEs (which are primarily accounts receivables) are not available to creditors of the Utilities. Unconsolidated variable interest entities. Power purchase agreements. The Utilities have power purchase agreements (PPAs) with independent power producers (IPPs) and Schedule Q providers (i.e., customers with cogeneration and/or power production facilities who buy power from or sell power to the Utilities). As of June 30, 2026, the Utilities evaluated and concluded none of the IPPs or Schedule Q providers are currently required to be consolidated by reasons that i) no variable interests exist in the PPAs; ii) where variable interests are present, the Utilities are not deemed the primary beneficiary due to lack of power to direct the activities that most significantly impact the IPPs’ economic performance; or iii) the PPAs qualify for scope exceptions under current accounting standards for consolidation. The carrying amounts of assets and liabilities related to the Utilities’ PPAs, where variable interests are present but the Utilities are not deemed the primary beneficiary, are limited to the purchased power and energy payments. As the Utilities recover such payments through the PUC-approved Purchased Power Adjustment Clause (PPAC) or the Energy Cost Recovery Clause (ECRC) mechanism, there is no significant potential exposure to loss to the Utilities as of June 30, 2026. GLST1. GLST1 was formed in November 2024 for the purpose of holding the first installment payment pursuant to the settlement of the Maui windstorm and wildfire tort-related legal claims. Effective March 31, 2025, HEI assigned 60% of the membership interests of GLST1 to Hawaiian Electric. The Utilities are deemed to have a variable interest in GLST1 but concluded that the Utilities are not the primary beneficiary of GLST1. As the Utilities have the ability to exercise significant influence over GLST1, the Utilities accounted for the membership interests under the equity method of accounting. On April 10, 2026, HEI and Hawaiian Electric paid the first of four equal annual installments and subsequently dissolved and terminated GLST1 in June 2026. Commitments and contingencies. Contingencies. The Utilities are subject in the normal course of business to legal, regulatory and environmental proceedings. Excluding the liabilities from the Maui windstorm and wildfires, management does not anticipate that the aggregate ultimate liability arising out of these pending or threatened legal proceedings will be material to its financial position. However, the Utilities cannot rule out the possibility that such outcomes could have a material effect on the results of operations or liquidity for a particular reporting period in the future. August 2023 Maui windstorm and wildfires. See Note 2. Property insurer litigation. HEI and Hawaiian Electric were actively seeking recovery of damages to rebuild the covered electrical infrastructure from their insurers and, as of June 30, 2026, have received insurance reimbursements of $9.6 million related to submitted claims under the $500 million property insurance coverage. On February 13, 2026, Hawaiian Electric Industries, Inc., Hawaiian Electric Company, Inc., and Maui Electric Company, Limited (collectively, the Hawaiian Electric Plaintiffs) filed suit against four of their property insurers: Defendants XL Insurance Company of America, Inc., Allianz Global Risks US Insurance Company, the Princeton Excess and Surplus Lines Insurance Company, and General Security Indemnity Company of Arizona (collectively, the HEI Insurers). The HEI Insurers are commercial property insurers that insured the Hawaiian Electric Plaintiffs at the time of the August 2023 Maui windstorm and wildfires. The Hawaiian Electric Plaintiffs also had commercial property insurance under policies issued by Associated Electric & Gas Insurance Services (AEGIS), Ascot Syndicate 1414, IQUW Syndicate 1856, Energy Insurance Mutual, QBE International Markets, and Certain Underwriters at Lloyd’s London (collectively, the AEGIS Insurers). Under the policies issued by the AEGIS Insurers, the Hawaiian Electric Plaintiffs and the AEGIS Insurers were required to engage in negotiation meetings, and if negotiation was unsuccessful, mediation prior to litigation. Accordingly, the Hawaiian Electric Plaintiffs did not name the AEGIS Insurers as defendants in the complaint filed on February 13, 2026. The HEI Insurers and AEGIS Insurers (jointly, the Property Insurers) acknowledged coverage under the policies at issue for loss or damage to the Hawaiian Electric Plaintiffs’ property in connection with the Maui windstorm and wildfires and paid a portion of the Hawaiian Electric Plaintiffs’ losses. However, the Property Insurers denied coverage and refused to pay for a substantial portion of the loss and expense claimed. In April 2026, the Hawaiian Electric Plaintiffs and the Property Insurers engaged in negotiations and finalized a partial settlement in the second quarter of 2026 (the Settlement). The Settlement resolved all disputes with the AEGIS Insurers with respect to coverage under the AEGIS policies for loss arising out of the Maui windstorm and wildfires, as well as a portion of the disputes between the Hawaiian Electric Plaintiffs and the HEI Insurers. As the proceeds from the Settlement will be used to offset future rebuild or replacement costs, the Utilities have recorded the proceeds as a regulatory liability as of June 30, 2026. Litigation is ongoing in the federal district court for the District of Hawaii with respect to the remaining coverage disputes with the HEI Insurers that were not resolved by the Settlement. The Hawaiian Electric Plaintiffs seek declaratory relief regarding the extent of the HEI Insurers’ obligations under the policies, as well as a determination that the HEI Insurers have breached the policies by refusing to indemnify the Hawaiian Electric Plaintiffs for covered loss and expense. The Hawaiian Electric Plaintiffs and the HEI Insurers engaged in mediation on July 8, 2026, but the mediation was not successful. The Hawaiian Electric Plaintiffs filed an amended complaint in the litigation on July 29, 2026, seeking approximately $40.7 million in damages. Hu Honua Bioenergy, LLC (Hu Honua). In 2013, Hu Honua filed a lawsuit in the U.S. District Court for the District of Hawaii based on Hawaii Electric Light’s termination of a PPA between the parties. The lawsuit asserted breach of contract and antitrust claims. On April 17, 2025, the U.S. District Court granted Hawaii Electric Light’s Motion to Dismiss in part, dismissing the Federal Antitrust claims, but declining to exercise jurisdiction over the State antitrust claim. The remaining State claims, including the contract claims and the State antitrust claim, were dismissed without prejudice. On May 14, 2025, Hu Honua filed its notice of appeal in federal Ninth Circuit court. Due to ongoing negotiations between Hu Honua and Hawaii Electric Light on a new PPA, the appellate briefing schedule has been vacated, and the court issued an administrative closure until February 1, 2027, and Hu Honua must provide a status report to the court by January 25, 2027. On May 16, 2025, Hu Honua filed its complaint in state court for the remaining State claims. Hu Honua has granted Hawaii Electric Light an open-ended extension to answer or otherwise respond to the State complaint while PPA negotiations are ongoing. The State court ordered a scheduling conference for August 12, 2025, which was subsequently postponed to October 13, 2026, to allow the parties to continue ongoing settlement discussions. Molokai New Energy Partners (MNEP). In July 2018, the PUC approved Maui Electric’s PPA with MNEP to purchase solar energy from a photovoltaic (PV) plus battery storage project. The 4.88-MW PV and 3-MW Battery Energy Storage System (BESS) project was to deliver no more than 2.64 MW at any time to the Molokai system. On March 25, 2020, MNEP filed a complaint in the U.S. District Court for the District of Hawaii against Maui Electric claiming breach of contract. On June 3, 2020, Maui Electric provided a Notice of Default and Termination of the PPA to MNEP terminating the PPA with an effective date of July 10, 2020. Thereafter, MNEP filed an amended complaint to include claims relating to the termination and Hawaiian Electric filed its answer to the amended complaint on September 11, 2020, disputing the facts presented by MNEP and all claims within the original and amended complaint. Currently, the discovery phase is ongoing. Trial which was previously set to commence on September 16, 2025 was continued to February 18, 2026 and is now set to begin November 13, 2026. Environmental regulation. The Utilities are subject to environmental laws and regulations that regulate the operation of existing facilities, the construction and operation of new facilities and the proper cleanup and disposal of hazardous waste and toxic substances. Hawaiian Electric, Hawaii Electric Light and Maui Electric, like other utilities, periodically encounter petroleum or other chemical releases associated with current or previous operations. The Utilities report and take action on these releases when and as required by applicable law and regulations. The Utilities believe the costs of responding to such releases identified to date will not have a material effect, individually or in the aggregate, on Hawaiian Electric’s consolidated results of operations, financial condition or liquidity. Former Molokai Electric Company generation site. In 1989, Maui Electric acquired Molokai Electric Company. Molokai Electric Company had sold its former generation site (Site) in 1983 but continued to operate at the Site under a lease until 1985 and left the property in 1987. The Environmental Protection Agency (EPA) has since identified environmental impacts in the subsurface soil at the Site. In cooperation with the State of Hawaii Department of Health and EPA, Maui Electric further investigated the Site and the adjacent parcel to determine the extent of impacts of polychlorinated biphenyls (PCBs), residual fuel oils and other subsurface contaminants. Maui Electric has a reserve balance of $2.4 million as of June 30, 2026, representing the probable and reasonably estimable undiscounted cost for remediation of the Site and the adjacent parcel based on presently available information; however, final costs of remediation will depend on the cleanup approach implemented. Pearl Harbor sediment study. In July 2014, the U.S. Navy notified Hawaiian Electric of the Navy’s determination that Hawaiian Electric is a Potentially Responsible Party under Comprehensive Environmental Response, Compensation, and Liability Act responsible for the costs of investigation and cleanup of PCB contamination in sediment in the area offshore of the Waiau power plant as part of the Pearl Harbor Superfund Site. Hawaiian Electric was also required by the EPA to assess potential sources and extent of PCB contamination onshore at Waiau power plant. As of June 30, 2026, the reserve account balance recorded by Hawaiian Electric to address the PCB contamination was $9.3 million. The reserve balance represents the probable and reasonably estimable undiscounted cost for the onshore and offshore investigation and remediation. The final remediation costs will depend on the actual onshore and offshore cleanup costs. Endangered Species Act. The Utilities received a notice under the federal Endangered Species Act, from Earthjustice on behalf of the American Bird Conservancy and Conservation Council for Hawaii (Conservation Groups) in January 2024. The notice is the pre-cursor to a citizen’s suit under the Endangered Species Act. The notice alleges that the Utilities are out of compliance with the Act due to alleged impacts on endangered seabirds caused by the Utilities’ powerlines, street lights and facility lights on Maui and Lanai. At the time the notice was served, the Utilities were already in the process of drafting a Habitat Conservation Plan (HCP) with respect to the powerlines and will be applying for associated state and federal take/license permits. Notwithstanding, the notice asserts that the scope of the HCP should be broader and additional interim measures are necessary while the HCP and related permits are pending. After negotiations among the parties, a complaint was filed on November 12, 2024 regarding the powerlines and on December 11, 2024, the court approved a settlement agreement. Pursuant to that agreement, the Utilities will continue the HCP process and take specific actions to minimize and mitigate the potential impact of the Utilities’ powerlines while the document is being prepared. The agreement also contains additional requirements that include coordination with the Conservation Groups with various aspects of the HCP and powerline operations, and continuing the Utilities’ commitment to a species mitigation project with University of Hawaii Foundation to monitor, protect and increase the population of Hawaiian Petrels. The street and facility lights aspect of the notice was not resolved and a second complaint was filed on November 19, 2024, that includes the County of Maui as a party. Hawaiian Electric and Maui Electric answered the complaint on December 12, 2024, and at this time, the parties have completed discovery. Summary judgment motions are pending, and a trial date is expected in late 2026 or early 2027. The parties may engage in additional settlement discussions in an effort to resolve the matter. However, the Utilities are unable to determine the ultimate outcome or the amount of any possible loss. Commitments. Purchase commitments. As of December 31, 2025, the Utilities’ estimated future minimum payments pursuant to purchase obligations related to material contracts of $2.63 billion. See Note 4 of the Notes to the Consolidated Financial Statements in Item 8 of the 2025 Form 10-K. As of June 30, 2026, a total of nine Stage 1 and Stage 2 renewable projects provide the Utilities a capacity of 301.5 MW, with 1,771-MWh batteries. Purchases from all IPPs were as follows:
1 Includes hydro power and other PPAs. Utility projects. Many public utility projects require PUC approval and various permits from other governmental agencies. Difficulties in obtaining, or the inability to obtain, the necessary approvals or permits or community support can result in significantly increased project costs or even cancellation of projects. In the event a project does not proceed, or if it becomes probable the PUC will disallow cost recovery for all or part of a project, or if PUC-imposed caps on project costs are expected to be exceeded, project costs may need to be written off in amounts that could result in significant reductions in Hawaiian Electric’s consolidated net income. Waena battery energy storage system project. In September 2020, Maui Electric filed a PUC application to purchase and install a 40-MW BESS at its Waena Site in Central Maui. In December 2023, the PUC approved Maui Electric’s request to commit funds estimated at $82.1 million, for the purchase and installation of the project, and to recover costs for the project under Exceptional Project Recovery Mechanism (EPRM). In July 2025, the PUC approved the Utilities’ request to authorize recovery of costs in addition to the amounts approved in December 2023 due to the uncertainty of changes in law, limited to the lesser of either the actual costs or 20% over the approved estimated capital costs. Project costs incurred as of June 30, 2026, amount to $27.2 million. Climate adaptation transmission and distribution resilience program. The Utilities maintain that improving resiliency of the electric grid is an urgent matter and recognizes that evolving climate dynamics are making Hawaii increasingly vulnerable to severe weather events. On January 31, 2024, the PUC approved the Utilities’ request to commit an estimated $189.7 million in funds for the climate adaptation transmission and distribution resilience program, over a project period of five years. The project will focus on, among other things, system hardening in wildfire risk areas including installing video camera and weather monitors in wildfire risk areas and strengthening transmission lines to help prevent ignition, enable quicker response and add situational awareness. The project costs to be recovered through EPRM is subject to a cap of $95 million and any amount in excess will be subject to the PUC’s further review. On August 7, 2024, the Utilities received a notification from the U.S. Department of Energy (DOE) that their application for $95 million in federal funds under the Infrastructure Investment and Jobs Act was officially awarded. On August 20, 2024, the Utilities submitted a copy of their executed agreement with the DOE to the PUC. On July 16, 2026, the Utilities received a notification of an award modification from the DOE that updated certain terms and conditions including the removal of the scope related to community benefits plans and the associated funding for those deliverables. As a result, the federal share total was reduced from $95 million to $92.6 million. The $95 million EPRM cap is not impacted at this time. On September 5, 2025, the Utilities filed their August 2025 - August 2026 Forward Looking Annual Report. Project costs incurred as of June 30, 2026, amount to $49.1 million. In 2025, President Trump issued multiple executive orders that impact federal funding. The Utilities are not impacted at this time but will continue to monitor for any new executive orders and any changes that are passed down through the federal contracting officer for the resilience program. Waiau repower project. On March 28, 2025, the Utilities filed an application to the PUC for their self-build project - Waiau repower project. The project, selected as part of a competitive bid process, was estimated at $847 million and involves replacing six existing turbines with six fuel-flexible combustion turbines that provide 253 MW of renewable firm generation, expected to be placed in service in stages from 2029 to 2033. The Utilities requested, among other things, approvals of 1) the commitment of funds for such project, and 2) recovery of project costs through the EPRM. On October 17, 2025, the Utilities filed an updated application reflecting revised costs of $1.16 billion, citing unavoidable and changed market conditions outside the Utilities’ control. On March 23, 2026, the PUC approved the commitment of funds and EPRM recovery for the Waiau repower project at the initial estimated cost of $847 million plus the lesser of a 10% increase or the difference in the Gross Domestic Product Price Index (GDPPI) between the date of the best and final offer submission and the date of the PUC’s decision and order (Inflationary Adjustment). On April 2, 2026, the Utilities filed a motion for reconsideration of the PUC’s decision and order. On April 17, 2026, the PUC issued an order addressing the Utilities’ motion for reconsideration which, among other things, affirmed that the project costs up to $847 million plus the Inflationary Adjustment can be recovered through EPRM and clarified that the Utilities may, after the project is in-service, seek recovery for project cost amounts greater than the approved amount in a general rate case or rate re-basing proceeding. Based on the estimated GDPPI for the first quarter of 2026 released by the Bureau of Economic Analysis on June 25, 2026, the project costs plus the Inflationary Adjustment are currently estimated at $908 million. On April 28, 2026, in connection with the Waiau repower project, Hawaiian Electric entered into three contracts to acquire a total of six gas turbine units from GE Vernova Operations, LLC to secure the manufacturing and staggered delivery of gas turbine units in pairs between 2029 and 2030. These contracts mitigate the risk of delayed turbine unit deliveries, remove the exposure to non-tariff price increases, and support the achievement of on-time commercial operations of the Waiau repower project. In December 2025, Federal Emergency Management Agency issued a Letter of Final Determination on the preliminary updates to Oahu’s Flood Insurance Rate Maps. As a result of the updates, portions of the Waiau power plant will transition to a newly designated flood zone A, which is estimated to have a 1% chance of annual flooding. The new flood maps became effective on June 10, 2026. The Utilities are currently assessing the impact the change may have on the Waiau repower project. Wildfire Mitigation Plan (WMP). In January 2025, the Utilities developed and filed with the PUC a 2025-2027 WMP (also referred to as Wildfire Safety Strategy or WSS), which identifies risk mitigation strategies to perform over the three years across their service territories. The strategies and actions include additional operational changes, grid hardening work, enhanced inspections and vegetation management, and risk modeling to inform and prioritize hardening work and operational actions. On December 31, 2025, the PUC approved the Utilities’ 2025-2027 WMP. On June 25, 2026, the PUC approved the Utilities’ request for EPRM cost recovery up to $350 million in project costs for 2025-2027. The PUC will condition recovery, among other things, on that the Utilities are not allowed to effectuate cost recovery for any of the approved 2025-2027 WMP project costs through the EPRM until the PUC has issued an order addressing the Utilities’ forthcoming securitization application for a financing order pursuant to Hawaii Revised Statutes Section 269G-2. All project costs that are approved for cost recovery through securitization shall not be recoverable through the EPRM. Any approved project costs that may be deemed ineligible for recovery through securitization may be recovered through the EPRM. Project costs incurred as of June 30, 2026, amount to approximately $101 million. Regulatory proceedings. Performance-based regulation framework (PBR Framework). The PUC issued a decision and order (PBR D&O) establishing the PBR Framework to govern the Utilities. The PBR Framework implemented a five-year multi-year rate period (MRP), during which there will be no general rate case applications. The first MRP ended on May 31, 2026, and the next MRP (MRP2) is scheduled to commence in 2027. The period between the end of the first MRP and the beginning of MRP2 is intended to be a transition period (see Phase 7 discussed below). PBR working group meetings were held in 2024, 2025, and early 2026 to consider potential PBR changes for MRP2. The PBR Framework Review will continue with the following: (i) Phase 6: consideration and development of proposals for modifications to the PBR Framework, which focuses on the inflation factor, customer dividend, Earnings Sharing Mechanism (ESM), revenue opportunities afforded by the X-Factor and the EPRM guidelines, and Performance Incentive Mechanisms (PIMs) portfolio, and (ii) Phase 7: the finalization and documentation of approved PBR Framework modifications prior to MRP2 commencement. Alternative re-basing. In an order issued on February 27, 2025, the PUC concluded that the Utilities’ target revenues should be re-based for MRP2 and allowed the Utilities to file a single, consolidated application that presents their requested adjustment to target revenues. The proceeding to re-base the Utilities’ target revenues for MRP2 shall be bifurcated into two tracks, with the first track focused on reaching a decision on the Utilities’ revenue requirements prior to the commencement of MRP2, and the second track focused on making a final determination on the revenue requirement and addressing the rate design component. On March 6, 2026, the Utilities filed a joint alternative re-basing proposal with Ulupono Initiative, requesting an increase of $170 million over annual target revenues at current effective rates, with $125 million phased into revenues in the first year of MRP2 and the remaining $45 million implemented in the second year of MRP2. In an order issued on June 15, 2026, the PUC directed the Utilities to re-submit their request for an increase in their revenue requirement, with supporting materials, in the form of a new application, and established a tentative procedural schedule for the new proceeding. The Utilities filed their application for approval of their re-basing proposal on July 17, 2026. On June 25, 2026, the Utilities filed a motion for reconsideration of the PUC’s order on the Utilities’ alternative re-basing proposal. Specifically, the Utilities requested reconsideration of the PUC’s rejection of the Utilities’ reservation of rights provision and the procedural schedule established in the order. The Utilities are awaiting a decision from the PUC on the motion. Earnings Sharing Mechanism. The PBR Framework established a symmetrical ESM for achieved rate-making return on average common equity (ROACE) outside of a 300 basis points deadband above or below the current authorized ROACE of 9.5% for each of the Utilities (i.e., above 12.5% or below 6.5%). There is a 50/50 sharing between customers and Utilities for the achieved rate-making ROACE falling within 150 basis points outside of the deadband in either direction, and a 90/10 sharing for any further difference. A reopening or review of the PBR terms may be triggered if the Utilities’ credit rating outlook indicates a potential credit downgrade below investment grade status, or if its achieved rate-making ROACE enters the outer most tier of the ESM. On August 31, 2023, the PUC issued an order temporarily suspending the ESM until further notice. The intent of the order is to address the unintended consequence of customers potentially bearing the costs associated with the Maui windstorm and wildfires through the operation of the ESM without prior PUC review. Exceptional Project Recovery Mechanism. The established EPRM Guidelines, formerly known as Major Project Interim Recovery (MPIR), permit the Utilities to include the full amount of approved costs in the EPRM for recovery in the first year the project goes into service, pro-rated for the portion of the year the project is in service. Deferred and other operation and maintenance (O&M) expense projects are also eligible for EPRM recovery under the EPRM Guidelines. EPRM recoverable costs are limited to the lesser of actual incurred project costs or the PUC‑approved amounts, net of savings. The recovery of the project costs previously approved under the MPIR continues within the PBR Framework. As of June 30, 2026, the Utilities’ annualized MPIR and EPRM revenue amounts totaled $39.3 million, including revenue taxes. The PUC approved the Utilities’ recovery of the annualized MPIR and EPRM revenues effective June 1, 2026, through the Revenue Balancing Account (RBA) rate adjustment. As of June 30, 2026, the PUC approved the recovery of six EPRM projects with an estimated amount of $1.41 billion in capital costs to the extent the project costs are not included in rates. See “Utility projects” section above. Currently, the Utilities are seeking EPRM recovery for one additional project subject to PUC approval. Performance Incentive Mechanisms. On December 18, 2024, and clarified on January 15, 2025, the PUC issued orders granting the Utilities’ request to suspend the Transmission and Distribution (T&D) System Average Interruption Duration Index (SAIDI) and T&D System Average Interruption Frequency Index (SAIFI) PIMs for wildfire risk circuits from January 1, 2024 to December 31, 2025. Separately, the Utilities submitted a request on December 16, 2025 to expand the suspension of T&D SAIDI and T&D SAIFI PIMs (T&D PIMs) to all circuits and extend the suspension to December 31, 2026, to consider modifications to the T&D PIMs. On April 21, 2026, the PUC issued an order denying the Utilities’ request to expand suspension of T&D PIMs to all circuits, but, on its own motion, extended the current suspension of the T&D PIMs for wildfire risk circuits through December 31, 2026. Consistent with the current suspension, this shall include continued exclusion of all Public Safety Power Shutoff program events from PIM performance metrics and targets. The suspension may be further extended beyond 2026 based on the Utilities request and proposal justifying the same, required to be submitted no later than October 1, 2026. Absent PUC approval of any further extension, the T&D PIMs suspension will expire and no exclusions on any circuits will be valid after December 31, 2026. For the 2025 evaluation period, the Utilities earned $7.5 million (nil for Hawaiian Electric, $5.4 million for Hawaii Electric Light and $2.1 million for Maui Electric) in rewards net of penalties. The net rewards related to 2025 were reflected in the 2026 PIMs annual report and 2026 spring revenue report filings with the exception of the Phase 1 Request for Proposal (RFP) PIM, which was reflected in the 2025 fall revenue report filing. Annual review cycle. Under the PBR Framework, target revenues are adjusted according to an index-driven annual revenue adjustment (ARA) based on: (i) an inflation factor, (ii) a predetermined X-factor to encompass productivity, which is set at zero, (iii) a Z-factor to account for exceptional circumstances not in the Utilities’ control and (iv) a customer dividend consisting of a negative adjustment of 0.22% of adjusted revenue requirements compounded annually and a flow through of the “pre-PBR” savings commitment from the management audit recommendations developed in a prior docket at a rate of $6.6 million per year from 2021 until the rate resets. PBR D&O also established an annual review cycle for revenue adjustments under the PBR Framework, including the biannual submission of the revenue reports. The Utilities’ 2026 spring revenue report filed on March 31, 2026 was approved by the PUC on May 20, 2026. The filing reflected ARA revenues for the third-year recovery of the COVID-19 related deferred costs through the Z-factor and the accelerated return of the Enterprise Resource Planning system benefits savings to Hawaii Electric Light and Maui Electric customers as part of the customer dividend, as follows:
Note: Columns may not foot due to rounding. The net incremental amounts between the 2025 fall and 2026 spring revenue reports are shown in the following table. The amounts are to be collected (refunded) from June 1, 2026, through May 31, 2027, under the RBA rate tariffs, which were included in the 2026 spring revenue report filing.
Regulatory assets and liabilities. Regulatory assets for Maui windstorm and wildfires related costs. The PUC has issued orders authorizing deferred accounting treatment for certain incremental non-labor expenses related to the Maui windstorm and wildfires incurred from August 8, 2023 through December 31, 2025. The approval pertains only to deferred cost treatment for expenses that are not already part of base rates; any actual recovery of deferred costs will be the subject of a separate application. As of June 30, 2026, the Utilities have recorded $80.5 million in regulatory assets for the incremental costs incurred during the aforementioned period related to the Maui windstorm and wildfires event. Requests for cost recovery of deferred costs will be the subject of a separate application at which time the PUC will evaluate whether such costs were prudently incurred and reasonable and determine the extent to which such costs will be eligible for recovery, and the period over which recovery will occur. If the PUC denies recovery of any deferred costs, such costs would be charged to expense in the period that those costs are no longer considered probable of recovery. Regulatory assets for Wildfire Mitigation Plan (WMP). On December 31, 2025, the PUC approved the Utilities’ 2025-2027 WMP (also referred to as Wildfire Safety Strategy or WSS). The Utilities’ 2025-2027 WMP is a three-year action plan that targets a material reduction in wildfire risk associated with utility infrastructure. The PUC also directed the Utilities to provide a WMP update bi-annually. On June 25, 2026, the PUC issued a decision and order approving cost recovery of the Utilities’ 2025-2027 WMP project costs through the EPRM. As of June 30, 2026, the Utilities have recorded a regulatory asset of $21.4 million. See “Utility projects—Wildfire Mitigation Plan” section above. Regulatory assets for suspension of disconnections related costs. Based on circumstances related to the Maui windstorm and wildfires, on August 31, 2023 and subsequently on October 13, 2023, the PUC issued orders directing all regulated utilities located on, or providing utility service on Maui, among other things, (i) to suspend disconnections of services and associated disconnection fees beginning from August 8, 2023, through the end of the emergency relief period established by the Governor’s Emergency Proclamations related to the Maui windstorm and wildfires, which currently continues through August 24, 2026 (Suspension Period); (ii) to suspend any and all rules and provisions of individual utility tariffs that prevent or condition re-connection of disconnected customers during the Suspension Period; (iii) not to charge customers interest on past due payments or impose any late payment fees through the Suspension Period; (iv) to establish regulatory assets to record costs directly related to the suspension of disconnections, and to record receipt of governmental aid and donation-based aid, loans or grants, and/or all other assistance measures, and any cost savings realized; and (v) to file a notice with the PUC regarding any upcoming application or other request pursuant to Hawaii Revised Statues Sections 269-16.3, -17, -17.5, -18, -19, or -19.5 and/or regarding any significant financial change to the Maui utility, at least 60 days prior to filing such application or other request with the PUC. The orders also discourage the filing of emergency or general rate increases in response to the emergency situation. On December 23, 2025, the PUC revised the notice of financial change reporting requirement (item v above) to apply only to the Utilities. In future proceedings, the PUC will assess the utility’s request for recovery of these regulatory assets including whether it is reasonable and necessary, the appropriate period of recovery for the approved amount of regulatory assets, any amount of carrying costs thereon, any savings directly attributable to suspension of disconnects, and other related matters. As of June 30, 2026, the Utilities have recorded $7.1 million in regulatory assets for the incremental costs incurred due to the suspension of disconnections. Condensed consolidating financial information. Condensed consolidating financial information for Hawaiian Electric and its subsidiaries are presented for the three and six months ended June 30, 2026 and 2025, and as of June 30, 2026 and December 31, 2025. Hawaiian Electric unconditionally guarantees Hawaii Electric Light’s and Maui Electric’s obligations (a) to the State of Hawaii for the repayment of principal and interest on Special Purpose Revenue Bonds issued for the benefit of Hawaii Electric Light and Maui Electric and (b) under their respective private placement note agreements and the Hawaii Electric Light notes and Maui Electric notes issued thereunder. Hawaiian Electric Company, Inc. and Subsidiaries Condensed Consolidating Statement of Income Three months ended June 30, 2026
Hawaiian Electric Company, Inc. and Subsidiaries Condensed Consolidating Statement of Comprehensive Income Three months ended June 30, 2026
Hawaiian Electric Company, Inc. and Subsidiaries Condensed Consolidating Statement of Income Three months ended June 30, 2025
Hawaiian Electric Company, Inc. and Subsidiaries Condensed Consolidating Statement of Comprehensive Income Three months ended June 30, 2025
Hawaiian Electric Company, Inc. and Subsidiaries Condensed Consolidating Statement of Income Six months ended June 30, 2026
Hawaiian Electric Company, Inc. and Subsidiaries Condensed Consolidating Statement of Comprehensive Income Six months ended June 30, 2026
Hawaiian Electric Company, Inc. and Subsidiaries Condensed Consolidating Statement of Income Six months ended June 30, 2025
Hawaiian Electric Company, Inc. and Subsidiaries Condensed Consolidating Statement of Comprehensive Income Six months ended June 30, 2025
Hawaiian Electric Company, Inc. and Subsidiaries Condensed Consolidating Balance Sheet June 30, 2026
(continued) Hawaiian Electric Company, Inc. and Subsidiaries Condensed Consolidating Balance Sheet (continued) June 30, 2026
Hawaiian Electric Company, Inc. and Subsidiaries Condensed Consolidating Balance Sheet December 31, 2025
(continued) Hawaiian Electric Company, Inc. and Subsidiaries Condensed Consolidating Balance Sheet (continued) December 31, 2025
Hawaiian Electric Company, Inc. and Subsidiaries Condensed Consolidating Statement of Changes in Common Stock Equity Six months ended June 30, 2026
Hawaiian Electric Company, Inc. and Subsidiaries Condensed Consolidating Statement of Changes in Common Stock Equity Six months ended June 30, 2025
Hawaiian Electric Company, Inc. and Subsidiaries Condensed Consolidating Statement of Cash Flows Six months ended June 30, 2026
Hawaiian Electric Company, Inc. and Subsidiaries Condensed Consolidating Statement of Cash Flows Six months ended June 30, 2025
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