20231027Final Approved Tariff Schedules 150 & 155.pdf

Thirty-Third Revision Sheet 150
Replacing
I.P.U.C. No.27 Thirty-Second Revision Sheet 150

150
AVISTA CORPORATION
d/b/a Avista Utilities
Issued September 1, 2023 Effective November 1, 2023
Issued by Avista Utilities
By Patrick Ehrbar – Director of Regulatory Affairs

SCHEDULE 150
PURCHASE GAS COST ADJUSTMENT - IDAHO

APPLICABLE:
To Customers in the State of Idaho where Company has natural gas service
available.

PURPOSE:
To pass through changes in costs resulting from purchasing and transporting
natural gas, to become effective as noted below.

RATE:
(a) The retail rates of firm gas Schedules 101, 111 and 112 are to be increased
by 37.718¢ per therm in all blocks of these rate schedules.

(b) The rates of interruptible Schedules 131 and 132 are to be increased by
28.834¢ per therm.

(c) The rate for transportation under Schedule 146 is to be decreased by
0.000¢ per therm.

WEIGHTED AVERAGE GAS COST:
The above rate changes are based on the following weighted average cost of gas
per therm as of the effective date shown below:
Demand Commodity Total
Schedules 101 8.884¢ 28.834¢ 37.718¢
Schedules 111 and 112 8.884¢ 28.834¢ 37.718¢
Schedules 131 and 132 0.000¢ 28.834¢ 28.834¢
The above amounts include a gross revenue factor.

Demand Commodity Total
Schedules 101 8.850¢ 28.725¢ 37.575¢
Schedules 111 and 112 8.850¢ 28.725¢ 37.575¢
Schedules 131 and 132 0.000¢ 28.725¢ 28.725¢
The above amounts do not include a gross revenue factor.

BALANCING ACCOUNT:
The Company will maintain a Purchase Gas Adjustment (PGA) Balancing Account
whereby monthly entries into this Balancing Account will be made to reflect differences
between the actual purchased gas costs collected from customers and the actual
purchased gas costs incurred by the Company. Those differences are then collected from
or refunded to customers under Schedule 155 – Gas Rate Adjustment.

IDAHO PUBLIC UTILITIES COMMISSIONApproved EffectiveOct. 27, 2023 Nov. 1, 2023 Per ON 35970 Jan Noriyuki Secretary

Twenty-Fifth Revision Sheet 155
Canceling
I.P.U.C. No.27 Twenty-Fourth Revision Sheet 155

155
AVISTA CORPORATION
d/b/a Avista Utilities
Issued September 1, 2023 Effective November 1, 2023

Issued by Avista Utilities
By Patrick Ehrbar, Director of Regulatory Affairs

SCHEDULE 155
GAS RATE ADJUSTMENT - IDAHO

AVAILABLE:
To Customers in the State of Idaho where Company has natural gas service
available.

PURPOSE:
To adjust gas rates for amounts generated by the sources listed below.

MONTHLY RATE:
(a) The rates of firm gas Schedules 101 and 111 are to be
increased by 25.281¢ per therm in all blocks of these rate schedules.
(b) The rate of interruptible gas Schedule 131 is to be decreased by
0.000¢ per therm.
(c) The rate of transportation gas Schedule 146 is to be decreased by 0.000¢
per therm.

SOURCES OF MONTHLY RATE:
Changes in the monthly rates above result from amounts which have been
accumulated in the Purchase Gas Adjustment (PGA) Balancing Account as
described in Schedule 150 – Purchase Gas Cost Adjustment.

SPECIAL TERMS AND CONDITIONS:
The above Monthly Rate is subject to the provisions of Tax Adjustment Schedule
158.

IDAHO PUBLIC UTILITIES COMMISSIONApproved EffectiveOct. 27, 2023 Nov. 1, 2023 Per ON 35970 Jan Noriyuki Secretary