Business Context and Reporting Period
Company: Avista Corp. (AVA)
Filing Type: Form 10-K (Annual Report)
Reporting Period: Fiscal Year Ended December 31, 2025
Business Overview: Avista is a regulated electric and natural gas utility operating primarily in Washington, Idaho, Oregon, and Montana (Avista Utilities), with additional electric operations in Juneau, Alaska (AEL&P). The company also holds non-regulated investments through Avista Capital.
Key Financial Metrics (2025)
| Metric | 2025 Value | 2024 Value |
|---|---|---|
| Total Operating Revenues | $1,964 million | $1,938 million |
| Net Income | $193 million | $180 million |
| Earnings Per Share (Diluted) | $2.38 | $2.29 |
| Operating Cash Flow | $469 million | $534 million |
| Capital Expenditures | $570 million | $533 million |
| Total Debt | $3,295 million | $3,125 million |
| Shareholders' Equity | $2,709 million | $2,591 million |
| Debt-to-Capitalization Ratio | 54.9% | 54.7% |
Material Changes vs. Prior Period
- Revenue Growth: Total operating revenues increased $26 million (1.3%) driven by general rate case approvals and customer growth, partially offset by a $9 million refund to customers related to Colstrip investment adjustments.
- Net Income Increase: Net income rose $13 million (7.2%) primarily due to rate case effects. This was partially offset by increased operating expenses, depreciation, and a $9 million Colstrip refund.
- Resource Costs: Electric resource costs decreased $69 million due to lower wholesale power prices and increased deferrals of power supply costs. Natural gas resource costs decreased $44 million due to lower commodity prices and volumes.
- Colstrip Exit: The company transferred its 15% ownership interest in the Colstrip coal-fired generating plant to NorthWestern on January 1, 2026, complying with Washington's Clean Energy Transformation Act (CETA).
- Investment Losses: The "Other Businesses" segment reported a net loss of $14 million (vs. $7 million in 2024), driven by valuation declines in clean technology investments and dilution of ownership percentages.
Guidance, Outlook, and Risks
Management Commentary and Outlook
- 2026 Load Expectations: Management expects a decrease in customer load in 2026 due to a large industrial customer returning to independent power procurement, estimated to reduce net income by $9 million compared to serving the load through year-end.
- Capital Plan: The company plans to issue up to $230 million in long-term debt and $90 million in common stock in 2026 to fund capital expenditures. Total utility capital expenditures for 2026 are estimated at $553 million.
- Rate Cases: A Multi-Year Rate Plan (MYRP) was filed with the Washington Utilities and Transportation Commission (WUTC) in January 2026, requesting base rate relief over four years to address resource costs, capital additions, and employee benefits.
- Resource Adequacy: The company is addressing regional resource adequacy needs through a 2025 Request for Proposal (RFP), targeting the addition of battery storage, wind power, and demand response programs.
Risks and Contingencies
- Regulatory Risk: Uncertainty regarding the recovery of costs and return on investment through regulatory proceedings. A $9 million refund was required for Colstrip costs deemed not "used and useful" after December 31, 2025.
- Climate and Environmental: Compliance with CETA in Washington and the Climate Protection Program in Oregon requires significant investment in clean energy and potential retirement of thermal assets. The company retains remediation obligations for Colstrip despite the ownership transfer.
- Wildfire Liability: Ongoing litigation and settlement costs related to wildfires (e.g., Babb Road Fire settlement of $27 million, largely covered by insurance). The company continues to invest in wildfire resiliency ($36 million capital in 2025).
- Commodity Volatility: Exposure to wholesale energy price fluctuations, though mitigated by hedging and regulatory cost deferral mechanisms (ERM, PCA, PGA).
Investor Verification Checklist
- Colstrip Transition: Verify the finalization of the Colstrip ownership transfer to NorthWestern and the status of the $9 million customer refund compliance filing due March 31, 2026.
- Rate Case Outcomes: Monitor the WUTC's decision on the 2026 MYRP filed in January 2026, specifically regarding the recovery of increased power supply costs and capital investments.
- Industrial Load Loss: Confirm the impact of the large industrial customer's departure on 2026 revenue and earnings projections.
- Investment Portfolio: Review the valuation trends of the "Other Businesses" segment, particularly clean technology holdings, which contributed to increased investment losses in 2025.
- Wildfire Resiliency Costs: Track the approval and recovery of wildfire mitigation costs in upcoming rate filings in Washington and Idaho.