20261002Exhibit C - Schedule 25P Tariff.pdf

Twenty Second Revision Sheet 25P
Canceling
I.P.U.C. No.28 Twenty First Revision Sheet 25P
AVISTA CORPORATION
d/b/a Avista Utilities
SCHEDULE 25P
EXTRA LARGE GENERAL SERVICE TO CLEARWATER PAPER'S FACILITY- IDAHO
(Three phase, available voltage)
AVAILABLE:
To Clearwater Paper Corporation's Lewiston, Idaho Facility.
APPLICABLE:
To general service supplied for all power requirements with a demand of not less than
2,500 kVA but not greater than 110,000 kVA. The average of the Customer's demand for
the most recent twelve-month period must fall within these demand limits for service under
this schedule. Customer shall provide and maintain all transformers and other necessary
equipment on its side of the point of delivery and enter into a written contract for five (5)
years or longer.
MONTHLY RATE: The sum of the following demand and energy charges:
Energy Charge:
Block 1 Retail Meter 4.0930 per kWh
Demand Charge as measured at the Retail Meter:
$20,000.00 for the first 3,000 kVA of demand or less.
1St Demand Block: $7.75 per kVA for each additional kVA of demand up to
55,000 kVA.
2nd Demand Block: $3.50 per kVA for each additional kVA of demand above
55,000 kVA.
Primary Voltage Discount as measured at the Retail Meter:
If Customer takes service at 11 kV(wye grounded)or higher, it will be allowed
a primary voltage discount of 400 per kVA of demand per month.
Minimum:
The demand charge unless a higher minimum is required under contract to
cover special conditions.
ANNUAL MINIMUM: $690,230
Any annual minimum deficiency will be determined during the April billing cycle for the
previous 12-month period. The annual minimum is based on 916,667 kWh's per month priced
at the Block 1 per kWh rate, plus twelve months multiplied by the monthly minimum demand
charge for the first 3,000 kVa of demand. The annual minimum reflected above is based on
base revenues only. Any other revenues paid in billed rates (such as the DSM Tariff Rider
Schedule 91) do not factor into the annual minimum calculation.
Issued October 2, 2026 Effective January 1, 2027
Issued by Avista Utilities
�J By Patrick Ehrbar, Director of Regulatory Affairs
�T

Eleventh Revision Sheet 25PA
Canceling
I.P.U.C. No. 28 Tenth Revision Sheet 25PA
AVISTA CORPORATION
dba Avista Utilities
SCHEDULE 25P (continued)
DEMAND:
The average kVA supplied during the 30-minute period of maximum use during the
current month as measured by Company's metering equipment.
SPECIAL TERMS AND CONDITIONS:
All Special Terms and Conditions are addressed in the Service Agreement between
Avista and Clearwater Paper Corporation as approved by the Commission.
Service under this schedule is subject to the Rules and Regulations contained in this
tariff. The above Monthly Rates are subject to increases or decreases as set forth in Tax
Adjustment Schedule 58, Temporary Power Cost Adjustment Schedule 66, State of Idaho
Usage Tax Schedule 57and Energy Efficiency Rider Adjustment Schedule 91.
Issued October 2, 2026 Effective January 1, 2027
Issued by Avista Utilities
�J By Patrick Ehrbar, Director of Regulatory Affairs
�T