IDACORP, Inc. (NYSE: IDA) reported fourth quarter 2025 net income attributable to IDACORP of $43.6 million, or $0.78 per diluted share, compared with $37.9 million, or $0.70 per diluted share, in the fourth quarter of 2024. For the full year ended December 31, 2025, IDACORP reported net income attributable to IDACORP of $323.5 million, or $5.90 per diluted share, compared with $289.2 million, or $5.50 per diluted share, in 2024.

"IDACORP's earnings in 2025 were at the top-end of the previously increased earnings guidance range. Results benefited from customer growth, rate changes, lower income tax expense, and the use of tax credits under the company's Idaho regulatory mechanism,” said IDACORP President and Chief Executive Officer Lisa Grow. "Partially offsetting those benefits were higher depreciation and financing costs from infrastructure investments."

"We accomplished a great deal in 2025, from breaking ground on our Boardman-to-Hemingway transmission line to achieving record system reliability for our customers. As we move ahead, we are heavily focused on affordability and reliability for our customers as we continue to execute on our infrastructure development plans, with 2026 being another year of substantial capital investment for our company," Grow added.

IDACORP is initiating its full-year 2026 earnings guidance in the range of $6.25 to $6.45 per diluted share with the expectation that Idaho Power will use less than $30 million of additional tax credits available under the Idaho regulatory mechanism in 2026. The earnings guidance assumes normal weather conditions and power supply expenses throughout the year.

Summary of Financial Results

The following is a summary of net income attributable to IDACORP and IDACORP's earnings per diluted share for the three months and years ended December 31, 2025 and 2024 (in thousands of dollars and shares, except earnings per share amounts):

The table below provides a reconciliation of net income attributable to IDACORP for the three months and years ended December 31, 2025, from the same periods in 2024 (items are in millions of dollars and are before tax unless otherwise noted):

Net Income - Fourth Quarter 2025

IDACORP's net income increased $5.7 million for the fourth quarter of 2025 compared with the fourth quarter of 2024, due primarily to higher net income at Idaho Power.

A net increase in retail revenues per MWh, net of power cost adjustment mechanisms, increased operating income by $11.3 million in the fourth quarter of 2025 compared with the fourth quarter of 2024. This benefit was due primarily to an overall increase in Idaho base rates, effective January 1, 2025, from the outcome of the limited-issue rate case Idaho Power filed with the Idaho Public Utilities Commission (IPUC) finalized by order of the IPUC in December 2024 (2024 Idaho Limited-Issue Rate Case).

Customer growth increased operating income by $5.7 million in the fourth quarter of 2025 compared with the fourth quarter of 2024, as the number of Idaho Power customers grew by approximately 15,000, or 2.3 percent, during the twelve months ended December 31, 2025. Usage per retail customer, net of associated power supply costs and power cost adjustment and FCA mechanisms, decreased operating income by $4.9 million in the fourth quarter of 2025 compared with the fourth quarter of 2024. Residential usage per customer decreased most significantly, as warmer temperatures in the fourth quarter of 2025 compared with the fourth quarter of 2024 led residential customers to use less energy for heating.

Other O&M expenses in the fourth quarter of 2025 were $12.9 million lower than the fourth quarter of 2024. This decrease was driven by lower labor-related costs and lower expenses from thermal, transmission and distribution assets, when compared with the fourth quarter of 2024.

Depreciation and amortization expense increased $7.4 million in the fourth quarter of 2025 compared with the fourth quarter of 2024, due primarily to an increase in plant-in-service. Additionally, the start of operations at a leased battery storage facility in the second quarter of 2025 contributed to the increase through the amortization of a related right-of-use asset.

Other changes in operating revenues and expenses, net, decreased operating income by $4.7 million in the fourth quarter of 2025 compared with the fourth quarter of 2024, due primarily to the successful conclusion of multi-year litigation efforts challenging Idaho and Oregon property tax valuations which resulted in refunds of prior year taxes being finalized in 2024, which did not reoccur in 2025. This decrease was partially offset by recovery of costs of a new finance lease through Idaho Power's power cost adjustment mechanism rates.

Non-operating expense, net, increased $3.9 million in the fourth quarter of 2025 compared with the fourth quarter of 2024. Higher long-term debt balances and an increase in transmission customer deposits, on which Idaho Power must pay interest to the customer, led to an increase in interest expense. Interest on a new finance lease also contributed to the increase compared with the fourth quarter of 2024. This increase was partially offset by an increase in Allowance for Funds Used During Construction (AFUDC) in the fourth quarter of 2025 compared with the fourth quarter of 2024, as the average construction work in progress balance was higher.

The decrease in income tax expense for the fourth quarter of 2025, compared with the fourth quarter of 2024, was primarily due to plant-related flow-through items.

Net Income - Full-Year 2025

IDACORP's net income increased $34.3 million for 2025 compared with 2024, due primarily to higher net income at Idaho Power.

The net increase in retail revenues per MWh, net of power cost adjustment mechanisms, increased operating income by $49.6 million in 2025 compared with 2024. This benefit was primarily due to an overall increase in Idaho base rates, effective January 1, 2025, from the outcome of the 2024 Idaho Limited-Issue Rate Case.

Idaho Power's customer growth of 2.3 percent added $25.2 million to Idaho Power's operating income in 2025 compared with 2024. Usage per retail customer, net of associated power supply costs and power cost adjustment and FCA mechanisms, decreased operating income by $6.5 million in 2025 compared with 2024. During 2025, usage per customer decreased for most customer classes. Milder temperatures during the year reduced the demand for both space heating and air conditioning. This decrease was partially offset by an increase in irrigation usage per customer, as lower precipitation during the summer led irrigation customers to run irrigation pumps more frequently. Partially offsetting the revenue impact of decreased usage per customer, a decrease in the deferral of residential and small commercial customer revenues through the FCA mechanism positively impacted retail revenues by $6.8 million.

Other O&M expenses in 2025 were $9.6 million higher than in 2024. This increase was primarily driven by inflationary pressures on labor-related costs, professional services, and increases in statutory fees assessed by regulators.

Depreciation and amortization expense increased $27.7 million in 2025 compared with 2024, due primarily to an increase in plant-in-service. Additionally, the start of operations at a leased battery storage facility in the second quarter of 2025 contributed modestly to the increase through amortization of a related right-of-use asset.

Other changes in operating revenues and expenses, net, decreased operating income by $3.8 million in 2025 compared with 2024, due primarily to the successful conclusion of multi-year litigation efforts challenging Idaho and Oregon property tax valuations, which resulted in refunds of prior year taxes being finalized in 2024, which did not reoccur in 2025. In addition, the timing of recording and adjusting regulatory accruals and deferrals positively impacted 2024 results, but did not reoccur in 2025. These decreases were partially offset by recovery of costs of a new finance lease through Idaho Power's power cost adjustment mechanism rates and a decrease in net power supply expenses that were not deferred for future recovery in rates through Idaho Power's power cost adjustment mechanisms.

Non-operating expense, net, increased $22.8 million in 2025 compared with 2024. Higher long-term debt balances and an increase in transmission customer deposits, on which Idaho Power must pay interest to the customer, led to an increase in interest expense. Interest on a new finance lease also contributed to the increased interest expense compared with 2024. This increase was partially offset by an increase in AFUDC during 2025 compared with 2024, as the average construction work in progress balance was higher.

Idaho Power recorded $40.3 million of additional ADITC amortization under its Idaho regulatory settlement stipulation during 2025, compared with $29.8 million in 2024. The $20.4 million decrease in income tax expense, excluding additional ADITC amortization, in 2025 compared with 2024 was primarily due to income tax return adjustments for state taxes and plant-related flow-through items.

Annual Earnings Guidance and Key Operating and Financial Metrics

IDACORP is initiating its earnings guidance estimate for 2026. The 2026 guidance incorporates all of the key operating and financial assumptions listed in the table that follows (in millions of dollars and MWh, except per share amounts):

More detailed financial and operational information is provided in IDACORP’s Annual Report on Form 10-K filed today with the U.S. Securities and Exchange Commission, which is also available for review on IDACORP’s website at idacorpinc.com.

Web Cast / Conference Call

IDACORP will hold an analyst conference call today at 2:30 p.m. Mountain Time (4:30 p.m. Eastern Time). All parties interested in listening may do so through a live webcast on IDACORP's website (idacorpinc.com), or by calling (855) 761-5600 for listen-only mode. The passcode for the call is 9290150. The conference call logistics are also posted on IDACORP's website. Slides will be included during the conference call. To access the slide deck, please visit idacorpinc.com/investor-relations. A replay of the conference call will be available on the company's website for 12 months and will be available shortly after the call.

Background Information

IDACORP, Inc. (NYSE: IDA), Boise, Idaho-based and formed in 1998, is a holding company comprised of Idaho Power, a regulated electric utility; IDACORP Financial, an investor in affordable housing and other real estate tax credit investments; and Ida-West Energy, an operator of small hydroelectric generation projects that satisfy the requirements of the Public Utility Regulatory Policies Act of 1978. Idaho Power, headquartered in vibrant and fast-growing Boise, Idaho, has been a locally operated energy company since 1916. Today, it serves a 24,000-square-mile service area in Idaho and Oregon. With 17 low-cost hydropower projects at the core of its diverse energy mix, Idaho Power’s residential, business, and agricultural customers pay among the nation's lowest prices for electricity. Its nearly 2,200 employees proudly serve more than 660,000 customers with a culture of safety first, integrity always, and respect for all. To learn more about IDACORP or Idaho Power, visit idacorpinc.com or idahopower.com.

Forward-Looking Statements

In addition to the historical information contained in this press release, this press release contains (and oral communications made by IDACORP, Inc. (IDACORP) and Idaho Power Company (Idaho Power) may contain) statements that relate to future events and expectations, such as statements regarding projected or future financial performance, power generation, cash flows, capital expenditures, regulatory filings, dividends, capital structure or ratios, load forecasts, strategic goals, challenges, objectives, and plans for future operations. Such statements constitute forward-looking statements within the meaning of the Private Securities Litigation Reform Act of 1995. Any statements that express, or involve discussions as to, expectations, beliefs, plans, objectives, assumptions, or future events or performance, often, but not always, through the use of words or phrases such as "anticipates," "believes," "could," "estimates," "expects," "intends," "potential," "plans," "predicts," "preliminary," "projects," "targets," "may," "may result," or similar expressions, are not statements of historical facts and may be forward-looking. Forward-looking statements are not guarantees of future performance, involve estimates, assumptions, risks, and uncertainties, and may differ materially from actual results, performance, or outcomes. In addition to any assumptions and other factors and matters referred to specifically in connection with such forward-looking statements, factors that could cause actual results or outcomes to differ materially from those contained in forward-looking statements include those factors set forth in this press release, IDACORP's and Idaho Power's most recent Annual Report on Form 10-K, particularly Part I, Item 1A - "Risk Factors" and Part II, Item 7 - "Management’s Discussion and Analysis of Financial Condition and Results of Operations" of that report, subsequent reports filed by IDACORP and Idaho Power with the U.S. Securities and Exchange Commission (SEC), and the following important factors: (a) decisions or actions by the Idaho and Oregon public utilities commissions and the Federal Energy Regulatory Commission that impact Idaho Power's ability to recover costs and earn a return on investment; (b) changes to or the elimination of Idaho Power's regulatory cost recovery mechanisms; (c) expenses and risks associated with capital expenditures and contractual obligations for, and the permitting and construction of, utility infrastructure projects that Idaho Power may be unable to complete, are delayed, have cost increases due to tariffs, supply chain constraints, or other factors, or that may not be deemed prudent by regulators for cost recovery or return on investment; (d) expenses and risks associated with supplier and contractor delays and failure to satisfy project quality and performance standards on utility infrastructure projects, including as a result of tariffs, supply chain constraints, permitting requirements and limitations, and the potential impacts of those delays and failures on Idaho Power's ability to serve customers and generate revenues; (e) the rapid addition of new industrial customer load and the volatility and timing of such new load demand, resulting in increased risks and costs of power demand potentially exceeding Idaho Power’s available generation capacity and of revenue volatility; (f) the potential financial impacts of industrial customers not meeting forecasted power usage ramp rates or volumes; (g) impacts of economic conditions, including an inflationary or recessionary environment and interest rates, on items such as operations and capital investments, supply costs and delivery delays, supply scarcity and shortages, population growth or decline in Idaho Power's service area, changes in customer demand for electricity, revenue from sales of excess power, credit quality of counterparties and suppliers and their ability to meet financial and operational commitments and on the timing and extent of counterparties’ power usage, and collection of receivables; (h) changes in residential, commercial, irrigation, and industrial growth and demographic patterns within Idaho Power's service area, and the associated impacts on loads and load growth; (i) employee workforce factors, including the operational and financial costs of unionization or the attempt to unionize all or part of the companies' workforce, the cost and ability to attract and retain skilled workers and third-party contractors and suppliers, the cost of living and the related impact on recruiting employees, and the ability to adjust to fluctuations in labor costs; (j) changes in, failure to comply with, and costs of compliance with laws, regulations, policies, orders, and licenses, which may result in penalties and fines, increase compliance and operational costs, and impact recovery associated with increased costs through rates; (k) abnormal or severe weather conditions, wildfires, droughts, earthquakes, and other natural phenomena and natural disasters, which affect customer sales, hydropower generation, repair costs, service interruptions, public safety power shutoffs and de-energization, liability for damage caused by utility property, and the availability and cost of fuel for generation plants or purchased power to serve customers; (l) advancement and adoption of self-generation, energy storage, energy efficiency, alternative energy sources, and other technologies that may reduce Idaho Power's sale or delivery of electric power or introduce operational vulnerabilities to the power grid; (m) variable hydrological conditions and over-appropriation of surface and groundwater in the Snake River Basin, which may impact the amount of power generated by Idaho Power's hydropower facilities and power supply costs; (n) ability to acquire equipment, materials, fuel, power, and transmission capacity on reasonable terms and prices, particularly in the event of unanticipated or abnormally high resource demands, price volatility (including as a result of new or increased tariffs), lack of physical availability, transportation constraints, outages due to maintenance or repairs to generation or transmission facilities, disruptions in the supply chain, or reduced credit quality or lack of counterparty and supplier credit; (o) inability to timely obtain and the cost of obtaining and complying with required governmental permits and approvals, licenses, rights-of-way, and siting for transmission and generation projects and hydropower facilities; (p) disruptions or outages of Idaho Power's generation or transmission systems or of any interconnected transmission systems, which can result in liability for Idaho Power, increased power supply costs and repair expenses, and reduced revenues; (q) accidents, electrical contacts, fires (either affecting or caused by Idaho Power facilities or infrastructure), explosions, infrastructure failures, general system damage or dysfunction, and other unplanned events that may occur while operating and maintaining assets, which can cause unplanned outages; reduce generating output; damage company assets, operations, or reputation; subject Idaho Power to third-party claims for property damage, personal injury, or loss of life; or result in the imposition of fines and penalties; (r) acts or threats of terrorism, acts of war, social unrest, cyber or physical security attacks, and other malicious acts of individuals or groups seeking to disrupt Idaho Power's operations or the electric power grid or compromise data, or the disruption or damage to the companies’ business, operations, or reputation resulting from such events; (s) Idaho Power's concentration in one region, and the resulting exposure to regional economic conditions and regional legislation and regulation; (t) unaligned goals and positions with co-owners of Idaho Power’s existing and planned generation and transmission assets that may adversely impact Idaho Power’s ability to construct and operate those facilities in a manner most suitable to Idaho Power; (u) changes in tax laws or related regulations or interpretations of applicable laws or regulations by federal, state, or local taxing jurisdictions, and the availability of expected tax credits or other tax benefits; (v) ability to obtain debt and equity financing or refinance existing debt when necessary and on satisfactory terms, which can be affected by factors such as credit ratings, reputational harm, volatility or disruptions in the financial markets, interest rates, decisions by the state public utility commissions, and the companies' past or projected financial performance; (w) ability to enter into financial and physical commodity hedges with creditworthy counterparties to manage price and commodity risk for fuel, power, and transmission, and the failure of any such risk management and hedging strategies to work as intended, and the potential losses and cash flow impacts the companies may incur on those hedges; (x) changes in actuarial assumptions, changes in interest rates, and the actual and projected return on plan assets for pension and other postretirement plans, which can affect future pension and other postretirement plan funding obligations, costs, and liabilities and the companies' cash flows; (y) remediation costs associated with planned cessation of coal-fired operations at Idaho Power's co-owned coal plants and conversion of the plants to natural gas; (z) ability to continue to pay dividends and achieve target dividend payout ratios based on financial performance and capital requirements, and in light of credit rating considerations, contractual covenants and restrictions, cash flows, and regulatory limitations; and (aa) adoption of or changes in accounting policies and principles, changes in accounting estimates, and new SEC or New York Stock Exchange requirements or new interpretations of existing requirements. Any forward-looking statement speaks only as of the date on which such statement is made. New factors emerge from time to time and it is not possible for the companies to predict all such factors, nor can they assess the impact of any such factor on the business or the extent to which any factor, or combination of factors, may cause results to differ materially from those contained in any forward-looking statement. IDACORP and Idaho Power disclaim any obligation to update publicly any forward-looking information, whether in response to new information, future events, or otherwise, except as required by applicable law.

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