evaluation and application of additional plans in irps · • diversity of portfolio • clean...
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Evaluation and Application of Additional Plans in IRPs
Anna MunieIRP Modeling & Analytics Team
Consumers Energy
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Agenda • Company Background
• Consumers Energy Integrated Resource Plan- 2018• Formal Settlement- 2019
• Transition from Strategist to Aurora
• IRP Modeling- Optimal/Suboptimal Plans in Strategist
• IRP Modeling- Additional Plans Option in Aurora
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• Michigan’s 2nd largest electric and gas utility
• Provides electric service to 1.8 million customers
• Annual peak demand of approximately 8,000 MW
• Annual sales of approximately 36,000 GWh
• Owns, operates and purchases power as part of a balanced portfolio
Consumers Energy
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• First Michigan utility to file under new IRP requirements
• Analyzed a total of 224sensitivities under 3 different “worlds”
• Proposed Course of Action included:• 5 GW of new solar capacity by
2030
• Early retirement of coal units
• Expansions in demand side management programs and energy storage
2018 Integrated Resource
Plan
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IRP Settlement- June 2019
• Settlement Agreement
approved June 9th, 2019
• 22 Intervening Parties
• Proposed Course of Action (PCA) approved as
proposed• 84 requirements identified per
Settlement Agreement for 2021 IRP
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This Photo by Unknown Author is licensed under CC BY
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OPTIMAL RESOURCE PLAN
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CE Modeling- Strategist to AURORA
AURORA
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Evaluation and Application Factors- SubOptimals
1) Net Present Value
• Small $$ difference, large
resource difference
2) Types of Resources
Selected
• Company programs
• Stakeholder input
3) Timing of Resource Builds
• When, and how big?
4) Resource/Portfolio Risk
• Diversity of portfolio
• Clean Energy Plan
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Strategist Optimal & Sub-Optimal Plans 8
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AURORA Additional Plans
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AURORA Additional Plans
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AURORA Additional Plans
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AURORA ADVANTAGES: Additional Plans
- Partial build options
- Improved modeling logic for
DSM and batteries
- Ease of evaluating optimized
plans across all sensitivities
Evaluation and Application Factors- Additional Plans
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Resource Plan
Company Plans
Additional Plans
Optimal Plans
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Questions?