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AVISTA CORP

For the period ended Dec 31, 2025. Filed Feb 25, 2026.

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About this filing

A company's yearly report to the SEC, with audited financial statements. It is the fullest account a company gives of its business, its finances and the risks it sees.

FY2025 · Filed Feb 25, 2026

AVA$40.06-0.4%Stored close · as of Nov 9, 2026

Extracted filing text, with the paragraph anchors used by the comparison.

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Contents

Avista Utilities Operating Statistics

AVISTA UTILITIES ELECTRIC OPERATING STATISTICS

Years Ended December 31,
202520242023
ELECTRIC OPERATIONS
OPERATING REVENUES (Dollars in Millions):
Residential$550$473$425
Commercial402369344
Industrial142131110
Public street and highway lighting998
Total retail1,103982887
Wholesale187225250
Sales of fuel2013(26)
Other348161
Total electric operating revenues$1,344$1,301$1,172
ENERGY SALES (Thousands of MWhs):
Residential4,1144,0184,020
Commercial3,2163,1663,160
Industrial1,9121,7851,671
Public street and highway lighting151717
Total retail9,2578,9868,868
Wholesale4,4573,7403,468
Total electric energy sales13,71412,72612,336
ENERGY RESOURCES (Thousands of MWhs):
Hydroelectric generation (from Company facilities)3,1953,1683,024
Thermal generation (from Company facilities)4,8154,9955,084
Purchased power6,0404,9655,121
Power exchanges(13)(14)(421)
Total power resources14,03713,11412,808
Energy losses and Company use(323)(388)(472)
Total energy resources (net of losses)13,71412,72612,336
NUMBER OF RETAIL CUSTOMERS (Average for Period):
Residential376,349371,076366,450
Commercial45,95945,79445,341
Industrial1,1591,1751,188
Public street and highway lighting761739690
Total electric retail customers424,228418,784413,669
RESIDENTIAL SERVICE AVERAGES:
Annual use per customer (KWh)10,93110,82710,971
Revenue per KWh (in cents)13.3711.7810.58
Annual revenue per customer (in dollars)$1,462$1,276$1,160
AVERAGE HOURLY LOAD (aMW)1,1491,1171,115

AVISTA UTILITIES ELECTRIC OPERATING STATISTICS

Years Ended December 31,
202520242023
RETAIL NATIVE LOAD at time of system peak (MW):
Winter1,8321,8691,771
Summer1,8371,8311,809
COOLING DEGREE DAYS: (1)
Spokane, WA
Actual845903811
Historical average607596585
% of average139%152%139%
HEATING DEGREE DAYS: (2)
Spokane, WA
Actual5,7825,8756,012
Historical average6,5216,5696,557
% of average89%89%92%

(1)

Cooling degree days are the measure of the warmness of weather experienced, based on the extent to which the average of high and low temperatures for a day is above 65 degrees Fahrenheit (annual degree days above historical average indicate warmer than average temperatures).

(2)

Heating degree days are the measure of the coldness of weather experienced, based on the extent to which the average of high and low temperatures for a day is below 65 degrees Fahrenheit (annual degree days below historical averages indicate warmer than average temperatures).

AVISTA UTILITIES NATURAL GAS OPERATING STATISTICS

Years Ended December 31,
202520242023
NATURAL GAS OPERATIONS
OPERATING REVENUES (Dollars in Millions):
Residential$291$317$326
Commercial137163164
Interruptible9913
Industrial344
Total retail440493507
Wholesale526155
Transportation13118
Other79411
Total natural gas operating revenues$584$606$571
THERMS DELIVERED (Thousands of Therms):
Residential209,200217,808225,665
Commercial132,932137,972138,719
Interruptible25,50320,68220,158
Industrial4,7324,3474,914
Total retail372,367380,809389,456
Wholesale228,646271,803262,188
Transportation156,883178,236165,066
Interdepartmental and Company use389391413
Total therms delivered758,285831,239817,123
NUMBER OF RETAIL CUSTOMERS (Average for Period):
Residential346,048343,267340,655
Commercial37,48137,35337,193
Interruptible515250
Industrial184185187
Total natural gas retail customers383,764380,857378,085
RESIDENTIAL SERVICE AVERAGES:
Annual use per customer (therms)605635662
Revenue per therm (in dollars)$1.39$1.46$1.44
Annual revenue per customer (in dollars)$840$925$956
HEATING DEGREE DAYS: (1)
Spokane, WA
Actual5,7825,8756,012
Historical average6,5216,5696,557
% of average89%89%92%
Medford, OR
Actual4,1693,9634,295
Historical average4,2524,2824,248
% of average98%93%101%

(1)

Heating degree days are the measure of the coldness of weather experienced, based on the extent to which the average of high and low temperatures for a day is below 65 degrees Fahrenheit (annual degree days below historic indicate warmer than average temperatures).

ContentsView on SEC.gov

The text of this filing, as the company filed it with the SEC, without its images or exhibits. This is not investment advice.