20250806Direct Mitchell - Redacted.pdf

BEFORE THE IDAHO PUBLIC UTILITIES COMMISSION
IN THE MATTER OF THE )
APPLICATION OF ROCKY MOUNTAIN )
POWER FOR APPROVAL OF 2026 ) CASE NO. PAC-E-25-14
INTER-JURISDICTIONAL COST )
ALLOCATION PROTOCOL )
ROCKY MOUNTAIN POWER
Direct Testimony of Ramon J. Mitchell
August 2025

1 I . INTRODUCTION AND QUALIFICATIONS
2 Q. Please state your name, business address, and present
3 position with PacifiCorp d/b/a Rocky Mountain Power
4 ("Company") .
5 A. My name is Ramon J. Mitchell, and my business address
6 is 825 NE Multnomah Street, Suite 600, Portland,
7 Oregon 97232 . My title is Director, Net Power Costs .
8 Q. What is your educational background and professional
9 experience?
10 A. I hold a Master of Business Administration from the
11 University of Portland and a Bachelor of Arts in
12 Economics from Reed College . I began working at the
13 Company in 2015 and have held positions across several
14 departments, including regulatory affairs, merchant
15 operations, and transmission operations . After a brief
16 period away from the Company, I returned in 2022 and
17 currently direct the preparation, analysis, and
18 regulatory presentation of the Company' s Net Power
19 Costs ("NPC") , which are a significant component of
20 customer rates .
21 Q. Have you previously testified in regulatory
22 proceedings?
23 A. Yes . I have provided testimony in multiple dockets
24 before public utility commissions in Idaho, Utah,
25 Wyoming, California, Oregon, and Washington.
Mitchell, Di 1
Rocky Mountain Power

1 II . PURPOSE AND SUMMARY OF TESTIMONY
2 Q. What is the purpose of your testimony in this
3 proceeding?
4 A. The purpose of my testimony is to explain and support
5 the Company' s proposed methodology for allocating NPC
6 under the 2026 PacifiCorp Inter-Jurisdictional
7 Allocation Protocol ("2026 Protocol") . ' This testimony
8 is part of a broader regulatory filing that outlines
9 how the Company intends to update its cost allocation
10 framework across the six states it serves .
11 Q. Please summarize the key points of your testimony.
12 A. My testimony supports the Company' s proposed
13 methodology for allocating NPC under the 2026
14 Protocol . Key points include :
15 • The 2026 Protocol introduces a two-portfolio
16 structure, the "Five State Portfolio" and the
17 "Washington Fixed Portfolio, " to reflect state-
18 specific policies and resource preferences .
19 • NPC is allocated through a five-step process that
20 includes dynamic allocation of costs among the Five
21 States, Net Position valuation, and final
22 aggregation.
23 Situs resources continue to be treated using the
24 lower-of-cost-or-market methodology.
25 Comparisons with the 2020 Protocol show modest
26 changes in NPC, with reductions for the Five-State
27 Portfolio when considering avoided GHG costs .
1 The 2026 Protocol is available as an exhibit to the direct testimony of
Company witness Joelle R. Steward. See Exhibit No. 3.
Mitchell, Di 2
Rocky Mountain Power

1 • NPC Variance caused by the change in allocation
2 methodology is treated outside of any sharing
3 mechanisms (sharing bands) , deadbands, and earnings
4 tests to ensure isolation of impacts caused by the
5 change in cost allocation method.
6 Future changes, including the use of Extended Day-
7 Ahead Market ("EDAM") settlements, are anticipated.
8 Q. Why is this update necessary?
9 A. The update is necessary to reflect evolutions in the
10 energy landscape . My testimony focuses specifically on
11 how NPC will be allocated under this new framework and
12 how the methodology may evolve over time .
13 Q. How does the 2026 Protocol' s NPC allocation benefit
14 customers across the Company' s service territory?
15 A. The 2026 Protocol' s NPC allocation enhances
16 transparency and fairness in cost allocation, ensuring
17 that customers in each state pay for the resources and
18 policies they support . This alignment reduces cross-
19 subsidization and improves regulatory confidence in
20 rate setting.
21 Q. Who else is providing testimony in support of the 2026
22 Protocol?
23 A. Other Company witnesses provide testimony on the
24 broader structure of the 2026 Protocol, 2 the impacts
25 of the 2026 Protocol to the Company' s revenue
2 See Direct Testimony of Cindy A. Crane (Aug. 6, 2025) ; see also Direct
Testimony of Joelle R. Steward (Aug. 6, 2025) .
Mitchell, Di 3
Rocky Mountain Power

1 requirement, 3 and how the 2026 Protocol supports
2 resource adequacy for each state the Company serves . 4
3 My role is to focus on the NPC allocation methodology
4 and to provide detailed, step-by-step explanations of
5 how costs will be allocated to each state .
6 III . NPC ALLOCATION
7 Q. What are NPC, and why are they important?
8 A. NPC represent the power costs of serving the Company' s
9 customers with electricity, inclusive of costs related
10 to generating electricity, purchasing electricity,
11 purchasing transmission rights, purchasing
12 allowances, and the revenues related to selling
13 wholesale electricity. NPC are one of the largest
14 components of the Company' s revenue requirement and,
15 therefore, a major driver of customer rates .
16 Q. How does the 2026 Protocol propose to allocate NPC?
17 A. The 2026 Protocol introduces two resource portfolios :
18 1 . The Five-State Portfolio - This includes Idaho,
19 Utah, Wyoming, California, and Oregon.
20 2 . The Washington Fixed Portfolio - This includes only
21 Washington.
22 Approximately 92 . 1 percent of total NPC will be
23 allocated to the Five-State Portfolio, and 7 . 9 percent
24 to the Washington Fixed Portfolio, but for a few
3 See Direct Testimony of Shelley E. McCoy (Aug. 6, 2025) .
4 See Direct Testimony of Michael G. Wilding (Aug. 6, 2025) .
Mitchell, Di 4
Rocky Mountain Power

1 exceptions inclusive of situs assignments and relevant
2 state-specific resources, initiatives and
3 disallowances .
4 IV. STEP-BY-STEP ALLOCATION PROCESS FOR NPC
5 Q. Can you walk through the steps used to allocate NPC
6 under the 2026 Protocol?
7 A. Yes . The allocation process consists of five main
8 steps, each designed to ensure that costs are assigned
9 fairly and transparently.
10 Step 1 : Deriving Total Company NPC
11 Q. What is the first step in the allocation process?
12 A. The first step is to calculate the Company' s total NPC
13 for the entire six-state system before any state-
14 specific adjustments . The procedure of this
15 calculation remains unchanged. Once calculated, a
16 monthly NPC report is created. This report provides a
17 detailed breakdown of costs and revenues and serves as
18 the foundation for state-level allocations .
19 Step 2 : Applying Dynamic Allocation Factors
20 Q. What happens after the Company' s total NPC is
21 calculated?
22 A. For each line item in the NPC report—whether it is a
23 cost, revenue, generation figure, or load adjustment-
24 dynamic allocation factors are applied, specific to
25 each state in the Five-State Portfolio . These factors
Mitchell, Di 5
Rocky Mountain Power

1 are based on each state' s share of various elements in
2 the Company' s resource portfolio and are applied to
3 both dollar amounts and megawatt-hours ("MWh") . This
4 results in what is called the Initial State NPC.
5 Q. What are dynamic allocation factors?
6 A. Dynamic allocation factors refer to the calculations
7 used to allocate costs and resources among the states
8 as outlined in the 2026 Protocol . Company witness
9 Shelley E . McCoy provides testimony on the details of
10 dynamic allocation factors . 5
11 Step 3 : Calculating the Net Position
12 Q. What is the Net Position, and why is it important?
13 A. The Net Position is the difference between the total
14 energy available (generation and market purchases) and
15 the total energy needed (load and market sales) for
16 the Five-State Portfolio . If the total energy
17 available exceeds the total energy that is needed, the
18 portfolio is "long. " If the total energy available is
19 less than the total energy that is needed, the
20 portfolio is "short . "
21 Q. How is the Net Position calculated?
22 A. Each month, the sum of generation and market purchases
23 from the Five-State Portfolio is compared to the sum
24 of load and market sales, all in MWh. The difference
5 Direct Testimony of Shelley E. McCoy.
Mitchell, Di 6
Rocky Mountain Power

1 is the Net Position, which indicates whether the Five-
2 State Portfolio has a surplus (long) or deficit
3 (short) of energy.
4 Step 4 : Valuing the Net Position
5 Q. How is the Net Position valued?
6 A. The average price of short-term firm transactions for
7 a month is calculated. 6 This price is then used to
8 value the Net Position. Each state' s allocated share?
9 of this value (Net Position Value) —whether a credit or
10 a charge—is subtracted from its Initial State NPC.
11 Q. Why is tracking the Net Position valuable to
12 customers?
13 A. It allows the Company to credit or charge states based
14 on their contribution to system surplus or deficit .
15 Q. Can you provide an example of the Net Position
16 valuation?
17 A. Suppose the Five-State Portfolio is long by
18 100, 000 MWh in a given month, and the average short-
19 term firm price is $50/MWh. The total value of the
20 surplus is 100, 000 MWh X $50/MWh = $5 million. This
21 amount is allocated to states based on their share of
22 the portfolio, reducing their NPC. If the portfolio
6 This is done by dividing the Five-State Portfolio total short term firm
transaction dollars by the total short term firm transaction MWh.
' Each state's share is allocated using a System Generation 5B ("SG5B")
allocation factor, as detailed by Ms. McCoy. See Direct Testimony of
Shelley E. McCoy at 5-8.
Mitchell, Di 7
Rocky Mountain Power

1 were short, the same logic would apply, but the result
2 would be an added cost . Continuing with the prior
3 example, suppose a state' s share of the portfolio is
4 10 percent . That state' s NPC would be reduced by
5 $5 million X 100 = $500, 000 .
6 Step 5 : Finalizing NPC Allocation
7 Q. What is the final step in the process?
8 A. After subtracting the Net Position Value from the
9 Initial State NPC, the Final NPC for each state is the
10 result . This is the amount that will be used in rate
11 filings and cost recovery mechanisms .
12 Q. Is this process applied to both actual and forecasted
13 NPC?
14 A. Yes . The same methodology is used for both actual and
15 forecasted NPC, ensuring consistency across planning
16 and reporting.
17 Q. Is this process and reporting consistent across all
18 states?
19 A. Yes . While each state may have its own regulatory
20 requirements, the underlying data and methodology are
21 consistent . This promotes fairness and comparability
22 across jurisdictions .
23 Illustrative Example
24 Q. Can you provide a real-world example of how the NPC
25 allocation methodology works under the 2026 Protocol?
Mitchell, Di 8
Rocky Mountain Power

1 A. Absolutely. Consider a simplified monthly scenario to
2 illustrate the five-step process in action. This
3 example is for illustrative purposes only and uses
4 rounded numbers for clarity.
5 Step 1 : Deriving Total Company NPC
6 1 . 1 : Assume the Company' s total system NPC for a month
7 is $300 million .
8 Step 2: Applying Dynamic Allocation Factors
9 2 . 1 : Assume a state' s dynamic allocation factor for
10 the month is 10 percent .
11 2 .2 : Calculate the state' s share of total NPC by
12 applying the appropriate dynamic allocation
13 factor. The result is the Initial State NPC.
14 $300 million x 10o = $30 million .
15 Step 3: Calculating the Net Position
16 3 . 1 : Assume the Five-State Portfolio has :
17 Total energy available: 6. 2 million MWh
18 Total energy needed: 6. 0 million MWh
19 3 .2 : Calculate the Net Position by finding the
20 difference between the energy available and the
21 energy needed.
22 6. 2 million MWh - 6. 0 million MWh
23 = 0. 2 million MWh
24 Because the result is a positive number, the
25 portfolio is "long. "
26 Step 4: Valuing the Net Position
27 4 . 1 : Assume the average short-term firm price for the
28 month is $50/MWh.
29 4 .2 : Find the value of the surplus energy by
30 multiplying the Net Position by the average
31 short-term firm price :
32 0. 2 million MWh x $50/MWh — $10 million.
Mitchell, Di 9
Rocky Mountain Power

1 4 . 3 : Calculate the state' s share of this value based
2 on its SGSB share of the portfolio (e .g. ,
3 10 percent) . The result is the Net Position
4 Value.
5 $10 million x 100 = $1 million credit.
6 Step 5: Finalizing NPC Allocation
7 5 . 1 : Calculate the Final NPC by finding the difference
8 between the Initial State NPC and the Net
9 Position Value. The final result (i .e . , the Final
10 NPC) is the amount that would be used in rate
11 filings and cost recovery mechanisms .
12 $30 million - $1 million = $29 million.
13 V. SITUS TREATMENT OF RESOURCES
14 Q. What does "situs" mean in the context of resource
15 allocation?
16 A. "Situs" means the allocation of all of the cost or
17 attribute to a single state regardless of how that
18 state' s load compares to the aggregate Five-State
19 load. 8 In other words, a situs resource is one that is
20 designated for cost allocation to a specific state,
21 rather than being shared among the Five States .
22 Q. How are situs resources treated under the 2026
23 Protocol?
24 A. With the exception of qualifying facilities (%Fs") ,
25 which are addressed separately by Company witness
26 Steward, situs resources continue to be treated using
27 the "lower-of-cost-or-market" methodology. This
28 practice remains unchanged and ensures that states are
8 Exhibit No. 3 at 19.
Mitchell, Di 10
Rocky Mountain Power

1 not unfairly burdened with above-market costs for
2 resources they did not initiate .
3 Q. Does this approach encourage prudent state-initiated
4 resource procurement?
5 A. Yes . By assigning cost responsibility to the state
6 that initiates the procurement of a situs resource, it
7 incentivizes careful evaluation of contracts by the
8 state and promotes accountability of the state in
9 resource planning.
10 Q. Can you explain the "lower-of-cost-or-market"
11 methodology in more detail?
12 A. Certainly. This method compares the actual cost of a
13 resource (such as a power purchase agreement, or
14 "PPA") to the prevailing market price for electricity.
15 The lower of the two values is used to allocate costs
16 to states that do not have situs responsibility for
17 the resource . The state to which the resource is situs
18 pays the difference between: (1) the actual cost of
19 the resource; and (2) the total amount recovered from
20 the other states .
21 Q. Could you provide a concrete example of how this works?
22 A. Yes . Consider two scenarios :
23 Scenario 1 : Above-Market Cost
24 Suppose there is a 1 MWh PPA assigned to "State
25 Z, " with a contract price of $100/MWh and cost of $100
Mitchell, Di 11
Rocky Mountain Power

1 (= 1 MWh X $100/MWh) . Assume State Z has a 10 percent
2 share of the Five-State Portfolio (and accordingly,
3 the remaining states in the Five-State Portfolio have
4 a combined share of 90 percent) . If the market price
5 is $60/MWh, then all other states combined are charged
6 the lower $60/MWh market price, costing
7 $54 (= $60/MWh X 1 MWh X 900) for their allocated
8 share of the energy. State Z is responsible for the
9 remaining $46 (= $100 - $54) , which represents the
10 difference between: (1) the actual cost of the
11 resource; and (2) the total amount recovered from the
12 other states .
13 Scenario 2 : Below-Market Cost
14 Now suppose an alternate scenario where the
15 1 MWh PPA assigned to State Z is priced at $25/MWh
16 with a cost of $25 (= 1 MWh X $25/MWh) , while the
17 market price is $75/MWh. In this case, all other states
18 combined pay their 90 percent share of the lower PPA
19 price of $25/MWh, costing $22 . 50 (= $25/MWh X 1 MWh X
20 900) , for their allocated share of the energy. State
21 Z is responsible for the remaining $2 . 50 (_
22 $25 - $22 . 50) , which represents the difference
23 between: (1) the actual cost of the resource; and (2)
24 the total amount recovered from the other states .
25 Q. How often are these calculations performed?
Mitchell, Di 12
Rocky Mountain Power

1 A. These calculations are performed monthly to ensure
2 that cost allocations reflect seasonal variations in
3 market conditions and resource performance .
4 VI . COMPARISON BETWEEN THE 2020 PROTOCOL AND 2026
5 PROTOCOL
6 Q. How does the 2026 Protocol differ from the 2020
7 PacifiCorp Inter-Jurisdictional Allocation Protocol
8 ("2020 Protocol") in terms of NPC allocation?
9 A. The 2026 Protocol introduces several refinements to
10 the allocation methodology, including the creation of
11 separate portfolios that use fixed factors, and the
12 use of updated dynamic allocation factors to allocate
13 costs within the Five-State Portfolio . These changes
14 result in modest shifts in NPC for the Five-State
15 Portfolio .
16 Q. What are the specific impacts on NPC under the 2026
17 Protocol?
18 A. Based on the analysis presented in Confidential
19 Exhibit No. 5, along with the identically formatted
20 workpaper:
21 0 The Five-State Portfolio NPC increase by $0 . 25/MWh,
22 or 0 . 63 percent .
23 0 Idaho' s NPC increase by $0 . 25/MWh, or
24 0 . 61 percent . 9
9 $0. 94 million.
Mitchell, Di 13
Rocky Mountain Power

1 • Utah' s NPC increase by $0 . 26/MWh, or 0 . 73 percent . 10
2 • Wyoming' s NPC increase by $0 . 08/MWh, or
3 0 .22 percent . "
4 9 California' s NPC increase by $0 . 46/MWh, or
5 1 . 18 percent . 12
6 • Oregon' s NPC increase by $0 . 36/MWh, or
7 0 . 96 percent . 13
8 These changes are driven by the structural
9 adjustments in the allocation methodology and the
10 realignment of generation resources as discussed in
11 detail by Company witness Steward.
12 Q. How does the inclusion of Washington' s Climate
13 Commitment Act ("Washington CCA") affect these
14 results?
15 A. When we account for the costs associated with greenhouse
16 gas ("GHG") allowances under the Washington CCA,
17 relative to the 2020 Protocol, as shown Confidential
18 Exhibit No . 5, along with the identically formatted
19 workpaper:
20 • The Five-State portfolio' s NPC decrease by
21 $0 . 43/MWh, or 1 . 07 percent .
22 . Idaho' s NPC decrease by $0 . 64/MWh, or
23 1 . 55 percent . 14
24 . Utah' s NPC decrease by $0 . 52/MWh, or 1 . 42 percent . 15
to $8.2 million.
11 $0.80 million.
12 $0.39 million
13 $6.2 million.
14 $2.4 million.
is $16.4 million.
Mitchell, Di 14
Rocky Mountain Power

1 • Wyoming' s NPC decrease by $0 . 77/MWh, or
2 1 . 94 percent . 16
3 9 California' s NPC decrease by $0 . 40/MWh, or
4 0 . 99 percent . 17
5 • Oregon' s NPC decrease by $0 . 44/MWh, or
6 1 . 17 percent . 18
7 This reflects the fact that Washington' s GHG
8 compliance costs are excluded from the Five-State
9 Portfolio, thereby reducing the overall NPC for the
10 remaining states .
11 Q. Does the 2026 Protocol improve transparency in cost
12 impacts?
13 A. Absolutely. By clearly delineating the effects of
14 policy-driven costs like the Washington CCA, the Idaho
15 Public Utilities Commission ("Commission") , parties,
16 and customers can better understand what drives rate
17 changes and how those changes relate to state-level
18 decisions .
19 Q. Why is it important to compare NPC between the 2020
20 Protocol and the 2026 Protocol?
21 A. Comparing the NPC helps parties understand the
22 implications of the proposed changes .
23 Q. Are these changes considered significant?
16 $7.3 million.
17 $0.33 million.
18 $7.8 million.
Mitchell, Di 15
Rocky Mountain Power

I A. No, especially when considered against the need for
2 and benefits of the 2026 Protocol, as described by
3 Company witness Cindy A. Crane .
4 VII . TREATMENT OF NPC VARIANCE
5 Q. What is meant by "NPC variance"?
6 A. NPC variance refers to the difference between the NPC
7 that was included in base rates (i . e . , NPC-in-rates,
8 or base NPC) and the actual NPC incurred during a given
9 period. This variance can arise due to changes in
10 market prices, resource availability, or, in this
11 case, changes in the allocation methodology.
12 Q. How does the Company propose to treat the NPC variance
13 caused by the transition from the 2020 Protocol to the
14 2026 Protocol?
15 A. The Company proposes that this specific variance be
16 treated outside of any existing sharing mechanisms
17 (sharing bands) , deadbands, or earnings tests within
18 the state' s annual NPC adjustment mechanism. This
19 ensures that the cost impact of the change in the
20 allocation methodology is isolated and not diluted by
21 other regulatory tools .
22 Q. Why should the NPC variance caused by the transition
23 from the 2020 Protocol to the 2026 Protocol be excluded
24 from sharing mechanisms (sharing bands) , deadbands, or
25 earnings tests?
Mitchell, Di 16
Rocky Mountain Power

1 A. The NPC variance caused by a change in allocation
2 methodology is structural and policy-driven. Including
3 it in sharing mechanisms (sharing bands) , deadbands,
4 or earnings tests could distort design incentives and
5 obscure the true impact of the protocol change .
6 Q. How does the proposed treatment of the NPC variance
7 caused by the transition from the 2020 Protocol to the
8 2026 Protocol benefit customers?
9 A. It ensures that customers are not penalized or
10 rewarded for structural changes unrelated to the
11 actual NPC incurred on their behalf. By isolating the
12 allocation-driven variance, the Commission can
13 maintain the integrity of existing cost recovery
14 mechanisms and ensure fairness .
15 Q. How will the NPC variance be calculated and recovered?
16 A. The NPC variance will be addressed in two parts :
17 1 . 2026 Protocol Impact (Outside the Adjustment
18 Mechanism) :
19 i . The difference between the base NPC under the
20 2020 Protocol and the base NPC under the 2026
21 Protocol will be calculated and recovered
22 outside of the adjustment mechanism. This
23 ensures that the impact of the allocation
24 change is fully and transparently accounted
25 for.
26 2 . Operational Impact (Within the Adjustment
27 Mechanism) :
28 i . The difference between the base NPC under the
29 2026 Protocol and the actual NPC incurred under
Mitchell, Di 17
Rocky Mountain Power

1 the 2026 Protocol will be recovered through the
2 annual NPC adjustment mechanism.
3 Q. Can you provide an example of how this would work in
4 practice?
5 A. Certainly. Suppose that for calendar year 2028, the
6 base NPC under the 2020 Protocol is $10 million, but
7 would have been $9 million under the 2026 Protocol .
8 The $1 million difference between the two base NPC is
9 100 percent returned outside the annual NPC adjustment
10 mechanism. If actual NPC under the 2026 protocol turns
11 out to be $11 million, the $2 million variance between
12 the base NPC under the 2026 protocol ($9 million) and
13 the actual NPC under the 2026 protocol is recovered
14 through the adjustment mechanism.
15 VIII . ANTICIPATED FUTURE CHANGES TO NPC ALLOCATION
16 Q. Does the Company anticipate further changes to the NPC
17 allocation methodology beyond the 2026 Protocol?
18 A. Yes . While the 2026 Protocol represents a significant
19 step forward in aligning cost allocation with the
20 evolving energy landscape, it is not the final step.
21 It is anticipated that future developments-
22 particularly in regional energy markets—will provide
23 opportunities to further refine and improve the
24 allocation of NPC .
25 Q. What specific developments are expected to influence
26 future changes?
Mitchell, Di 18
Rocky Mountain Power

1 A. One of the most significant developments is the
2 implementation of the EDAM, which is being developed
3 by the California Independent System Operator
4 ("CAISO") in collaboration with utilities and
5 stakeholders across the West . The EDAM will allow for
6 more efficient and coordinated energy trading across
7 a broader geographic footprint .
8 Q. How would the EDAM affect the way NPC is allocated?
9 A. If the Company participates in EDAM, actual market
10 settlement data would be used to allocate costs and
11 revenues more precisely to each state . This would
12 replace the current method of valuing the Net Position
13 based on average short-term firm prices with a more
14 granular approach. Actual market settlement data would
15 also replace the current "lower-of-cost-or-market"
16 methodology with a more comprehensive approach.
17 Q. How would EDAM settlement-based allocations benefit
18 customers?
19 A. It would allow for more granular, real-time allocation
20 of costs and revenues based on actual market outcomes
21 and ensures that customers benefit directly from their
22 state' s participation in regional energy markets
23 Q. What would this new approach look like?
24 A. Under an EDAM-based framework, each state' s NPC would
25 include :
Mitchell, Di 19
Rocky Mountain Power

1 0 Revenues gained from the state' s resources in the
2 EDAM.
3 0 Costs incurred for the state' s load in the EDAM.
4 These revenues and costs would be aggregated
5 with the state' s Initial State NPC, resulting in the
6 Final NPC for each state . This is the amount that would
7 be used in rate filings and cost recovery mechanisms .
8 Q. Would this change the total NPC for the Company?
9 A. No . The total NPC for the Company would remain the
10 same . However, the allocation of costs and benefits
11 between the states would be more reflective of actual
12 market activity and resource usage .
13 IX. CONCLUSION
14 Q. What is your overall assessment of NPC allocation
15 under 2026 Protocol?
16 A. The 2026 Protocol' s NPC allocation represents a
17 thoughtful, and forward-looking approach to inter-
18 jurisdictional NPC allocation. It builds on the
19 strengths of the 2020 Protocol while addressing its
20 limitations, and aligns with best practices in utility
21 regulation.
22 Q. In summary, what is the most important customer
23 benefit of the 2026 Protocol?
24 A. The most important benefit is fairness . Customers pay
25 for the resources and policies they support, and they
26 benefit from a system that is efficient, transparent,
Mitchell, Di 20
Rocky Mountain Power

1 and aligned with their state' s energy goals . This
2 ensures that rates are just, reasonable, and
3 reflective of actual service costs .
4 Q. What is your recommendation to the Commission?
5 A. I respectfully recommend that the Commission approve
6 the NPC allocation methodology as proposed in the 2026
7 Protocol . This methodology:
8 Accurately reflects the cost of serving customers
9 in each state .
10 Supports state-specific policy goals .
11 Preserves the benefits of a single, integrated
12 system.
13 Provides a durable and adaptable framework for the
14 future .
15 Q. Does this conclude your testimony?
16 A. Yes .
Mitchell, Di 21
Rocky Mountain Power

REDACTED
Rocky Mountain Power
Exhibit No . 5
Case No . PAC-E-25-14
Witness : Ramon J. Mitchell
BEFORE THE IDAHO PUBLIC UTILITIES
COMMISSION
ROCKY MOUNTAIN POWER
REDACTED
Exhibit Accompanying Direct Testimony of Ramon J. Mitchell
NPC Comparison
August 2025

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Rocky Mountain Power
REDACTED Exhibit No.5 1 Page 3 of 60
Case No. PAC-E-25-14
Witness:Ramon I Mitchell

Rocky Mountain Power
REDACTED Exhibit No.5 1 Page 4 of 60
Case No. PAC-E-25-14
Witness:Ramon I Mitchell

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Rocky Mountain Power
REDACTED Exhibit No.5 1 Page 7 of 60
Case No. PAC-E-25-14
Witness:Ramon I Mitchell

Rocky Mountain Power
REDACTED Exhibit No.5 1 Page 8 of 60
Case No. PAC-E-25-14
Witness:Ramon I Mitchell

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Rocky Mountain Power
REDACTED Exhibit No.5 1 Page 11 of 60
Case No. PAC-E-25-14
Witness:Ramon I Mitchell

Rocky Mountain Power
REDACTED Exhibit No.5 1 Page 12 of 60
Case No. PAC-E-25-14
Witness:Ramon I Mitchell

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Rocky Mountain Power
REDACTED Exhibit No.5 1 Page 15 of 60
Case No. PAC-E-25-14
Witness:Ramon I Mitchell

Rocky Mountain Power
REDACTED Exhibit No.5 1 Page 16 of 60
Case No. PAC-E-25-14
Witness:Ramon I Mitchell

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Rocky Mountain Power
REDACTED Exhibit No.5 1 Page 19 of 60
Case No. PAC-E-25-14
Witness:Ramon I Mitchell

Rocky Mountain Power
REDACTED Exhibit No.5 1 Page 20 of 60
Case No. PAC-E-25-14
Witness:Ramon I Mitchell

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Rocky Mountain Power
REDACTED Exhibit No.5 1 Page 23 of 60
Case No. PAC-E-25-14
Witness:Ramon I Mitchell

Rocky Mountain Power
REDACTED Exhibit No.5 1 Page 24 of 60
Case No. PAC-E-25-14
Witness:Ramon I Mitchell

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Rocky Mountain Power
REDACTED Exhibit No.5 1 Page 27 of 60
Case No. PAC-E-25-14
Witness:Ramon I Mitchell

Rocky Mountain Power
REDACTED Exhibit No.5 1 Page 28 of 60
Case No. PAC-E-25-14
Witness:Ramon I Mitchell

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Rocky Mountain Power
REDACTED Exhibit No.5 1 Page 31 of 60
Case No. PAC-E-25-14
Witness:Ramon I Mitchell

Rocky Mountain Power
REDACTED Exhibit No.5 1 Page 32 of 60
Case No. PAC-E-25-14
Witness:Ramon I Mitchell

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Rocky Mountain Power
REDACTED Exhibit No.5 1 Page 35 of 60
Case No. PAC-E-25-14
Witness:Ramon I Mitchell

Rocky Mountain Power
REDACTED Exhibit No.5 1 Page 36 of 60
Case No. PAC-E-25-14
Witness:Ramon I Mitchell

Rocky Mountain Power
REDACTED Exhibit No.5 1 Page 39 of 60
Case No. PAC-E-25-14
Witness:Ramon I Mitchell

Rocky Mountain Power
REDACTED Exhibit No.5 1 Page 40 of 60
Case No. PAC-E-25-14
Witness:Ramon I Mitchell

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Rocky Mountain Power
REDACTED Exhibit No.5 1 Page 43 of 60
Case No. PAC-E-25-14
Witness:Ramon I Mitchell

Rocky Mountain Power
REDACTED Exhibit No.5 1 Page 44 of 60
Case No. PAC-E-25-14
Witness:Ramon I Mitchell

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Rocky Mountain Power
REDACTED Exhibit No.5 1 Page 47 of 60
Case No. PAC-E-25-14
Witness:Ramon I Mitchell

Rocky Mountain Power
REDACTED Exhibit No.5 1 Page 48 of 60
Case No. PAC-E-25-14
Witness:Ramon J.Mitchell

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Rocky Mountain Power
REDACTED Exhibit No.5 1 Page 51 of 60
Case No. PAC-E-25-14
Witness:Ramon I Mitchell

Rocky Mountain Power
REDACTED Exhibit No.5 1 Page 52 of 60
Case No. PAC-E-25-14
Witness:Ramon I Mitchell

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Rocky Mountain Power
REDACTED Exhibit No.5 1 Page 55 of 60
Case No. PAC-E-25-14
Witness:Ramon I Mitchell

Rocky Mountain Power
REDACTED Exhibit No.5 1 Page 56 of 60
Case No. PAC-E-25-14
Witness:Ramon I Mitchell

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Rocky Mountain Power
REDACTED Exhibit No.5 1 Page 59 of 60
Case No. PAC-E-25-14
Witness:Ramon I Mitchell

Rocky Mountain Power
REDACTED Exhibit No.5 1 Page 60 of 60
Case No. PAC-E-25-14
Witness:Ramon I Mitchell