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Efficient Solutions for Integrating Renewables: Flatten the Duck Chart with Strategic Planning and Storage

Explore dynamic grid solutions to tackle potential over-generation issues identified in the California ISO Duck Chart from 2012 to 2020. Learn how maintenance planning on baseload plants during shoulder months, demand response strategies, energy storage, and curtailing baseload generation can help flatten the duck curve. Discover the benefits of addressing the duck chart through import/export strategies, demand response, and energy storage solutions. Gain insights into the integration costs of natural gas plants and the importance of planned outages in managing the grid effectively.

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Efficient Solutions for Integrating Renewables: Flatten the Duck Chart with Strategic Planning and Storage

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  1. Flattening the Duck Dynamic Grid Solutions for Integrating Renewables December 16, 2013

  2. The California ISO Duck Chart (2012 – 2020) 13,100 MW 5-8pm 5,300 MW 8-11am Potential over-generation

  3. CAISO Duck Chart (2020 Issues) 13,100 MW 5-8pm 5,300 MW 8-11am Potential over-generation

  4. Flatten the Duck – Import/Export Import/Export

  5. Flatten the Duck – Curtail Baseload Generation • Source: CAISO Summer Loads and Resources Assessment CAISO planned outages ranged up to 7000 MW per weekday in the summer of 2012. Rather than address over-generation with more natural gas generation, California can strategically plan maintenance on baseload plants during shoulder months.

  6. Flatten the Duck – Demand Response Demand Response

  7. Addressing the Duck Chart with Energy Storage Energy Storage

  8. Addressing the Duck Chart with Curtailment Curtailment

  9. Flattening the Duck: All Solutions

  10. Back-up Slides

  11. Import/Export Assumptions

  12. Import/Export Assumptions 2012 Peak Daily ISO Imports = ~11,500 MW Source: CAISO 2013 Summer Loads & Resources Assessment (May 6, 2013)

  13. Demand Response Assumptions

  14. Energy Storage Assumptions

  15. Curtailment Assumptions

  16. CAISO Duck Chart (2020 vs. 2013) Highest net load: 25,000 MW at 8pm Lowest net load: 11,700 MW around 1pm

  17. Natural Gas Plants Have Integration Costs • Source: CAISO Summer Loads and Resources Assessment More than half of the outages associated with conventional generation are unplanned. Renewables have predictable variability. Fossil fuel power plants often shut down unexpectedly, forcing energy consumers to foot the bill for reserves and frequency response.

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