MISO Energy Storage Study Phase 1 Report - Utility Wind ...

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THE MISO PLANNING ENVIRONMENT 2-6 o Carbon constraint (assumes that current energy policies will be continued with the addition of a carbon cap modeled on the Waxman-Markey bill). o Combined energy policy (assumes a myriad of energy policies are enacted, including a 20 percent federal RPS, a carbon cap modeled on the Waxman- Markey bill, the implementation of a smart grid, and the widespread adoption of electric vehicles). • Time horizon: 20 – 40 years from portfolio in-service date • Discount rate: (capital borrowing cost) 3.00 - 8.2 percent • Wind Turbine Capital Cost: $2.0 – $2.9 Million / MW • Operating Reserve Optimization Benefit: $5 - $7 / MWh • Natural Gas Prices: o Business as Usual Scenarios: $5 - $8 / MMBtu • Carbon and Combined Policy Scenarios: $8 - $10 / MMBtu • A natural gas price of $5 was used for the base business case analysis. Higher natural gas prices were used as sensitivities. The Energy Storage Study The Energy Storage Study is a targeted study assigned to the MISO Transmission Expansion Plan 2011 (MTEP11) cycle. MTEP targeted studies begin as efforts to identify particular problems or explore planning, reliability and/or market enhancements. The study objectives include improved understanding about how to represent energy storage in MISO models. The future resource and load planning scenarios used to model energy storage technologies are similar to those used for MTEP 11. While MISO’s renewable energy production is growing, new generation sources are complicated to integrate into the existing network. Wind production in MISO as a percentage of total energy increased from 0.65 percent in 2006 to 3.8 percent in 2010. There were however, 2,117 wind curtailments in 2010 where potential wind generation was backed down either because it could not reach a load due to congestion or because the wind generation was surplus to requirements (see Figure 2-3). Providing additional transmission is one way to alleviate wind curtailment but although this eliminates congestion, it does not guarantee that wind energy can be consumed. Wind energy is typically greatest during off-peak hours when demand for electricity is low. Additional wind generated electricity during off-peak hours therefore often attracts low or negative prices. Energy storage technologies have the potential to consume wind energy at low off-peak prices
THE MISO PLANNING ENVIRONMENT Figure 2-3: MISO Wind Curtailment 2008-2010 (Source MISO State of Market Monitor) during their charge cycle and deliver electricity to the market during peak periods when prices are higher. This phenomenon, known as energy arbitrage, alleviates wind curtailment and potentially reduces the need for new transmission and generation to meet peak demand. The Energy Storage Study will increase MISO understanding about whether, where and how energy storage resources can be applied to reduce transmission costs and wind curtailment. 2-7
Page 1 and 2: MISO Energy Storage Study Phase 1 R
Page 3: ACKNOWLEDGMENTS The following organ
Page 6 and 7: Project Objectives The MISO Energy
Page 8 and 9: from energy storage. The lessons le
Page 11 and 12: CONTENTS 1 INTRODUCTION ...........
Page 13: 8 STUDY CONCLUSIONS ...............
Page 16 and 17: Figure 7-5: Initial PLEXOS Results
Page 18 and 19: Introduction MISO follows a cycle k
Page 20 and 21: Introduction 1-4 markets besides re
Page 22 and 23: THE MISO PLANNING ENVIRONMENT coinc
Page 24 and 25: THE MISO PLANNING ENVIRONMENT Becau
Page 29 and 30: 3 ENERGY STORAGE TECHNOLOGIES The E
Page 31 and 32: ENERGY STORAGE TECHNOLOGIES Table 3
Page 33 and 34: ENERGY STORAGE TECHNOLOGIES Newer,
Page 35 and 36: Figure 3-5: Advanced CAES Plant Sch
Page 37 and 38: ENERGY STORAGE TECHNOLOGIES periods
Page 39 and 40: 4 STORED ENERGY RESOURCE TREATMENT
Page 41 and 42: Short Term Energy Storage Resources
Page 43 and 44: STORED ENERGY RESOURCE TREATMENT IN
Page 45 and 46: STORED ENERGY RESOURCE TREATMENT IN
Page 47 and 48: 5 ENERGY STORAGE MODELS AND ASSUMPT
Page 49 and 50: ENERGY STORAGE MODELS AND ASSUMPTIO
Page 51 and 52: o Spinning reserve designations and
Page 57 and 58: o Minimum and maximum generation (M
Page 59: ENERGY STORAGE MODELS AND ASSUMPTIO
Page 62 and 63: EGEAS ANALYSIS RESULTS 6-2 Figure 6
Page 64 and 65: EGEAS ANALYSIS RESULTS Energy Arbit
Page 67 and 68: 7 INITIAL PLEXOS ANALYSIS PLEXOS Ph
Page 69 and 70: Modeling Challenges Identified Usin
Page 71 and 72: INITIAL PLEXOS ANALYSIS Figure 7-3:
Page 73 and 74: INITIAL PLEXOS ANALYSIS Moving into
Page 75 and 76: 8 STUDY CONCLUSIONS The Energy Stor
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A TECHNICAL REVIEW GROUP WORKSHOP A
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TECHNICAL REVIEW GROUP WORKSHOP AGE
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B ACRONYMS $/kW Dollars per kilowat
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C STAKEHOLDER FEEDBACK Response to
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Comments and clarifications from Ma
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MISO Energy Storage Study Phase 1 Report - Utility Wind ...

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