20190904Avista to Staff 119 Supplemental.pdf

AVISTA CORPORATION
RESPONSE TO REQUEST FOR INFORMATION
JURISDICTION:
CASE NO:
REQUESTER:
TYPE:
REQUEST NO.:
IDAHO
AVU-E-19-04
IPUC
Production Request
Staff- I I 5 Supplemental
DATE PREPARED
WITNESS:
RESPONDER:
DEPARTMENT:
TELEPHONE:
FECEIVED09/04/20t9
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REQUEST:
Regarding Rattlesnake Wind, please provide the following data and information (in Excel format
with all working calculations intact) from the Company's 2017IRP AURORA runs that generated
electricity market prices (See 2017 IRP page 10-21:500 Monte Carlo runs that generated
electricity market prices) for each of the three CO2 cases (Expected, social cost of carbon, and the
benchmarking case excluding a cost of carbon - 2017 IRP, page l0-20):
a. For the period that Rattlesnake Wind will be in operation during the 2017 IRP
planning timeframe, please provide the percentage of market prices generated from
the 500 Monte Carlo simulation runs that are LESS than the non-levelized contract
price for each year for each of the carbon futures.
b. For the period that Rattlesnake Wind will be in operation during the 2017 IRP
planning timeframe, please provide the average annual market prices generated
from the 500 Monte Carlo simulation runs that are LESS than the non-levelized
contract price for each year for each of the carbon futures.
c. For the period that Rattlesnake Wind will be in operation during the 2017 IRP
planning timeframe, please provide the percentage of market prices generated from
the 500 Monte Carlo simulation runs that are GREATER than the non-levelized
contract price for each year for each of the carbon futures.
d. For the period that Rattlesnake Wind will be in operation during the 2017 IRP
planning timeframe, please provide the average annual market prices generated
from the 500 Monte Carlo simulation runs that are GREATER than the
non-levelized contract price for each year for each of the carbon futures.
e. Please provide the data used to generate the Mid-Columbia Electric Price Forecast
Range gaph (as illustrated in figure 10.14, page 10-21in the 2017 IRP) for each of
the carbon futures.
RESPONSE:
Please see Avista's response 115C, which contains TRADE SECRET, PROPRIETARY or
CONFIDENTIAL information and exernpt from public view and is separately filed under
IDAPA 31.01.01, Rule 067 and233,and Section 9-340D, Idaho Code.
SUPPLEMENTAL RESPONSE: (September 4, 2019)
Please see Avista's response 115C Supplemental, which contains TRADE SECRET,
PROPRIETARY or CONFIDENTIAL information and exempt from public view and is
separately filed under IDAPA 31.01.01, Rule 067 and233, and Section 9-340D, Idaho Code.