AVISTA CORP

Overview

Avista Corp. is an energy utility whose core business is providing electricity and natural gas through its regulated Avista Utilities division. Its operations include electricity generation, transmission and distribution, and natural-gas distribution. The company primarily serves communities in Washington, Idaho and Oregon, with additional energy operations and customers in Montana and Alaska.[1][2]

Avista reported consolidated operating revenue of approximately $1.96 billion for 2025 and 1,929 employees at year-end.[3][4] Its stated mission is “We enable vibrant communities through energy. Safely. Responsibly. Affordably.” [5] The company traces its history to 1889.[2] [1]+4

Products & services

Avista’s principal customer offerings are regulated electric service and natural-gas distribution. Its electric operations also generate power using hydroelectric, thermal, wind, and solar resources; Alaska Electric Light and Power provides electric service in Juneau. The FY2025 report lists 1,049 MW of hydroelectric and 638 MW of thermal generating capability. Named thermal technologies and fuels include combined-cycle wood waste, combined-cycle natural gas, and simple-cycle natural gas.[6]+3

For 2025, Avista reported a power-supply resource mix, including purchased-power contracts, of about 48% hydro, 37% thermal, and 15% other renewables; the report gives a post-Colstrip-transfer mix of 53%, 32%, and 15%, respectively.[10] The company also procures natural gas for customer delivery and generation, supported by firm transportation rights on six pipeline networks; those rights cover approximately 25% of peak customer demand from domestic sources and 75% from Canada.[11][12]

Customer-facing services include energy-efficiency rebates for residential and business customers, with eligible measures such as insulation, windows and doors, appliances, HVAC, and water heating; a My Clean Energy option for customers seeking renewable-energy attributes; and electric-vehicle programs, including business charging incentives.[13]+3 In FY2025, electric and natural-gas operating revenues were $1,344 million and $584 million, respectively—approximately 69.7% electric and 30.3% gas of their combined total.[17] [6]+11

Geographic presence

Avista’s regulated utility operations are concentrated in the U.S. Pacific Northwest. Avista Utilities serves parts of eastern Washington and northern Idaho with electricity and natural gas, and parts of northeastern and southwestern Oregon with natural gas; it also supplies electricity to a small number of Montana customers. A separate subsidiary, AEL&P, provides electric service in Juneau, Alaska, which is isolated from other utilities’ transmission systems and has no natural-gas pipeline access. The company’s filings identify no operations in other countries.[6]+3

Avista Utilities’ generating facilities are located in Washington, Idaho, Oregon and Montana. Listed facilities include Spokane-area hydro stations in Washington, Cabinet Gorge and Post Falls in Idaho, Noxon Rapids in Montana, and Coyote Springs 2 in Oregon. AEL&P operates hydroelectric facilities and diesel backup capacity in Alaska.[6][20] The FY2025 filing reports electric revenue from customer contracts of $1,162 million for Avista Utilities and $47 million for AEL&P, out of $1,209 million in total utility electric revenue; AEL&P thus represented about 3.9% of that electric-revenue total, calculated from the reported figures. The filing does not provide state-level revenue percentages.[21]

Corporate headquarters are in Spokane, Washington. As of December 31, 2025, Avista Utilities had 1,929 employees; the filing does not provide employee counts by state.[22][23] [6]+9

Business segments

Avista reports two operating segments: **Avista Utilities** and **Alaska Electric Light and Power Company (AEL&P)**. Avista Utilities is a regulated utility serving parts of Washington, Idaho, Oregon and Montana, with electric and natural-gas operations that include generation, transmission and distribution, as well as wholesale energy transactions. AEL&P is an electric utility serving Juneau, Alaska; it operates hydroelectric facilities and diesel backup generation, with the Snettisham project supplying about two-thirds of its hydroelectric generation.[6]+2

For FY2025, Avista Utilities contributed approximately **97.6%** of consolidated operating revenue ($1.916 billion of $1.964 billion), and AEL&P contributed approximately **2.4%** ($47 million). The segment schedule reported net income of $201 million for Avista Utilities and $6 million for AEL&P; other non-reportable items were presented separately, rather than as a third reportable segment.[26] The same two reportable segments appeared in the six months ended June 30, 2026: Avista Utilities generated approximately **97.3%** of consolidated revenue and AEL&P approximately **2.7%**.[27] [6]+10

Company history

Avista traces its origins to 1889, when it operated as Washington Water Power. In 1890, the company built its first power station at Monroe Street on the Spokane River, beginning a series of hydroelectric developments in the region.[28][29] Nine Mile began operating in 1908 to supply power to the Spokane and Inland Empire electric railway; Washington Water Power acquired the facility in 1925.[30][31] Long Lake Dam was built in 1915, and Cabinet Gorge Dam generated its first power on September 29, 1952.[31][32]

The Washington Water Power Company changed its corporate name to Avista Corporation effective January 1, 1999.[33] On July 1, 2014, Avista completed its acquisition of Alaska Energy and Resources Company, expanding its operations into Juneau, Alaska.[34] Avista marked the 135th anniversary of its 1889 origins in 2024.[35] [28]+7

Sources

• AVISTA CORP — Full financial report (2026 Q 2)
  3 citations

  [1][8][27]
• investor.avistacorp.com[2]
• AVISTA CORP — Full financial report (2025 Y)
  17 citations

  [3][6][7][9][10][11][12][17][18][19][20][21][22][23][24][25][26]
• companiesmarketcap.com[4]
• investor.avistacorp.com[5]
• www.myavista.com[13]
• www.myavista.com[14]
• www.myavista.com[15]
• www.myavista.com[16]
• www.myavista.com[28]
• www.historylink.org[29]
• archiveswest.orbiscascade.org[30]
• www.myavista.com[31]
• www.myavista.com[32]
• pdf.secdatabase.com[33]
• www.sec.gov[34]
• www.myavista.com[35]