NorthWestern Energy Group, Inc. · NASDAQ:NWE

NorthWestern Energy — Corporate Update (February 2017)

26 slides from NorthWestern Energy's corporate update, Feb 27, 2017

  1. Slide 1: NorthWestern Energy Resource Plan – Overview

    NorthWestern Energy Resource Plan – Overview February 27, 2017 1

  2. Slide 2: Commission Comments

    Commission Comments 1. The stakeholder process 2. Resource adequacy constraint 3. The scope of resource alternatives 4. The multiple uncertainties; and 5. The competitive resource procurement process 2

  3. Slide 3: Stakeholder Process

    Stakeholder Process • Commission Comment: 2015 Plan failed to adequately engage stakeholder • NorthWestern Response: We agree we need to do more – NorthWestern commits to working with ETAC more effectively – Steps taken • Hired a new facilitator • Schedule meetings • Commission Comment: Seems to exp

  4. Slide 4: Stakeholder Process

    Stakeholder Process • Commission Comment: Access to modeling software • NorthWestern Response: – NorthWestern continues to offer access to the Ascend modeling software • NorthWestern is willing to discuss a structure under its contract to MCC and MPSC 4

  5. Slide 5: Resource Adequacy Constraint

    Resource Adequacy Constraint • Commission Comment: – Not clearly defined capacity types and needs – NorthWestern has not completed a system optimization study with its entire fleet of resources. • NorthWestern Response: Agree and disagree – We have defined capacity types and needs • Chapters 7, 11,

  6. Slide 6: Physical Resources: Name Plate vs. Capacity Contribution

    Physical Resources: Name Plate vs. Capacity Contribution 6

  7. Slide 7: Resource Adequacy Constraint

    Resource Adequacy Constraint • Commission Comment: 2015 Plan provides no analysis justifying a resource adequacy standard based solely on a NorthWestern specific LOLP – Region-wide capacity shortage, “A utility-specific measure of capacity need as the yardstick for the solution…is incongruous”. – No

  8. Slide 8: Resource Adequacy

    Resource Adequacy Planning Reserve Margins • NERC Reference Margin – WECC NWPP-US Reference Margin = 16.6% • Comparison of Select Regional Utilities – NorthWestern has no planning reserve margin and is actually negative NorthWestern Energy

  9. Slide 9: NERC/WECC Reserve Margin Requirement

    NERC/WECC Reserve Margin Requirement • Reserve Margin Requirement: – WECC–NWPP = 16.6% • Resource Adequacy Advisory Committee (RAAC) – Provided a report that shows the region being short in 2021 • PNUCC Annual forecast affirms our concern about winter capacity 9

  10. Slide 10: Resource Adequacy / Capacity Planning

    Resource Adequacy / Capacity Planning Capacity Planning / Resource Adequacy • Shift in Resource Planning Priorities • NWPCC – First Plan to recognize and place priority on capacity planning. • Energy planning no longer “good enough” • Peak and flexibility need to be considered • No renewable resourc

  11. Slide 11: NWPCC – Resource Adequacy Assessment

    NWPCC – Resource Adequacy Assessment • RAAC identifies resource adequacy concerns in 2021 – Resource retirements – Increased intermittent resource integration needs – Increases in Winter Peaks 11

  12. Slide 12: PNUCC – Draft Northwest Regional Forecast

    PNUCC – Draft Northwest Regional Forecast 12

  13. Slide 13: PNUCC – Draft Northwest Regional Forecast

    PNUCC – Draft Northwest Regional Forecast 13

  14. Slide 14: Pacific NW vs. NorthWestern Coincidental Peak

    Pacific NW vs. NorthWestern Coincidental Peak 14

  15. Slide 15: Resource Adequacy Constraint

    Resource Adequacy Constraint • Commission Comment: The Plan provides little analysis and documentation that supports its selected capacity acquisition rate produces “minimal resource adequacy” by 2028. • NorthWestern Response: We agree regarding the rate of acquisition – Ascend did perform an optima

  16. Slide 16: Regional deficiency and Plant timing

    Regional deficiency and Plant timing 16

  17. Slide 17: Commission Comment: Resource Adequacy Constraint

    Commission Comment: Resource Adequacy Constraint • Commission Comment: The 2015 Plan falls short of providing a thorough analysis of the capacity contributions of various resource alternatives, particularly large scale wind and solar resources • NorthWestern Response: We disagree, especially concern

  18. Slide 18: Summer Peak - Wind and Solar Contribution

    Summer Peak - Wind and Solar Contribution 18

  19. Slide 19: Winter Peak - Wind and Solar Contribution

    Winter Peak - Wind and Solar Contribution 19

  20. Slide 20: Alternative Resources

    Alternative Resources • Commission Comments: The 2015 Plan falls short of an “evaluation of the full range of cost-effective supply and demand-side management options” • NorthWestern Response: We are talking past each other. The Plan uses more conventional generation – Conventional – strong amount o

  21. Slide 21: Commission Comment: Sources of Uncertainty

    Commission Comment: Sources of Uncertainty • Resource Cost and Capacity Contributions – Wind and Solar • Transition to RBC Regulation – Agree – Due to timing of RBC, this information was not available for the Plan – An evaluation will be completed for the next Plan • Wind and Solar Integration Requi

  22. Slide 22: Competitive Procurement Process

    Competitive Procurement Process • Commission Comment: Does not identify that resources will be procured through an open, fair, and competitive process – Does not explain steps it will take to ensure integrity – Prudent to consult with the advisory committee and potential bidders • NorthWestern Respo

  23. Slide 23: RFP Focus – Flexible Capacity Need and Resources

    RFP Focus – Flexible Capacity Need and Resources 23

  24. Slide 24: RPS Compliance Forecast

    RPS Compliance Forecast NorthWestern Energy RPS Compliance Forecast Current Portfolio + CREP + Contracted (Greycliff and WKN) 5,000,000 4,500,000 4,000,000 3,500,000 3,000,000 2,500,000 ~ 2,000,000 Renewable Energy Credits 1,500,000 1,000,000 500,000 NorthWestern Energy Delivering « Bright Future mm

  25. Slide 25: RPS Compliance Forecast

    RPS Compliance Forecast NorthWestern Energy RPS Compliance Forecast Current Portfolio + CREP + Contracted (Greycliff and WKN) + Crazy Mtn 6,000,000 5,000,000 4,000,000 3,000,000 + Renewable Energy Credits 2,000,000 + 1,000,000 + oO NorthWestern Energy lm Current Wind mm Current Hydro ll New CREP 25

  26. Slide 26: RPS Compliance Forecast

    RPS Compliance Forecast NorthWestern Energy RPS Compliance Forecast Current Portfolio + CREP + Contracted (Greycliff and WKN) + Crazy Mtn + One new 80MW Wind 7,000,000 6,000,000 5,000,000 4,000,000 3,000,000 Renewable Energy Credits 2,000,000 1,000,000 NorthWestern Energy Delivering « Bright Future

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