20230411AVU to Staff 36 Attach A.xls

Past Rate Cases
Pending Rate Cases
Rate Case History (Pending Rate Cases)
List: None
Company List: Avista Corporation
States: All
Years: 2023, 2022, 2021, 2020
Service Type: All
State
Company
Parent Company Ticker
Docket
Rate Case Service Type
Case Type
Document Filing Date
Rate Increase ($M)
Rate Change/ Revenue (%)
Return on Original Cost Rate (%)
Return on Equity (%)
Common Equity to Total Capital (%)
Rate Case Test Year End Date
Rate Base ($M)
Rate Base Valuation Method
Expected Decision Date
Alaska
Alaska Electric Light Power
AVA
D-U-22-078
Electric
Vertically Integrated
12/2021
Average
Idaho
Avista Corp.
C-AVU-E-23-01
NA
06/2022
C-AVU-G-23-01
Natural Gas
Distribution
Oregon
D-UG-461
12/2024
Rate Case History (Past Rate Cases)
Increase Requested
Increase Authorized
Rate Case Duration (months)
Date
Decision Type
Phase-In?
Interim Authorized?
C-AVU-E-21-01
Settled
Yes
No
12/2019
C-AVU-G-21-01
D-UG 433
08/2023
D-UG 389
Year-end
Washington
D-UE-220053
D-UG-220054
D-UE-200900
D-UG-200901
D-UE-190334
12/2018
D-UG-190335
of
?1?/?29?/?2021
33.51
7.30
9.90
50.00
901.08
?9?/?1?/?2021
18.60
7.05
9.40
50.00
869.81
7.00
?1?/?29?/?2021
1.00
7.30
9.90
50.00
174.71
?9?/?1?/?2021
-0.70
7.05
9.40
50.00
172.31
7.00
?10?/?22?/?2021
3.77
7.35
9.90
50.00
315.96
?8?/?2?/?2022
1.60
7.05
9.40
50.00
315.96
9.00
?3?/?16?/?2020
5.69
7.24
9.40
50.00
304.66
?12?/?10?/?2020
4.37
7.24
9.40
50.00
305.03
8.00
?1?/?21?/?2022
52.85
7.31
10.25
48.50
2045.85
?12?/?12?/?2022
38.00
7.03
1984.03
10.00
?1?/?21?/?2022
10.92
7.31
10.25
48.50
514.94
?12?/?12?/?2022
7.50
7.03
510.15
10.00
?10?/?30?/?2020
28.55
7.43
9.90
50.00
1860.61
?9?/?27?/?2021
13.58
7.12
9.40
48.50
1854.12
11.00
?10?/?30?/?2020
10.67
7.43
9.90
50.00
441.92
?9?/?27?/?2021
8.08
7.12
9.40
48.50
441.92
11.00
?4?/?30?/?2019
45.77
7.52
9.90
50.00
1708.30
?3?/?25?/?2020
28.50
7.21
9.40
48.50
11.00
?4?/?30?/?2019
12.94
7.52
9.90
50.00
398.99
?3?/?25?/?2020
8.00
7.21
9.40
48.50
11.00
Page of
?7?/?18?/?2022
3.19
9.00
10.00
13.45
60.70
130.68
?10?/?11?/?2023
?2?/?1?/?2023
50.61
7.59
10.25
50.00
1069.80
?9?/?1?/?2023
?2?/?1?/?2023
2.89
7.59
10.25
50.00
211.17
?9?/?1?/?2023
?3?/?1?/?2023
10.99
14.40
7.59
10.25
50.00
351.28
?1?/?1?/?2024