2021 & 2025 Draft LCR Study Results Humboldt Area Irina Green - - PowerPoint PPT Presentation

▶
2021 2025 draft lcr study results
SMART_READER_LITE
LIVE PREVIEW

2021 & 2025 Draft LCR Study Results Humboldt Area Irina Green - - PowerPoint PPT Presentation

Dec 21, 2023 670 likes •746 views

2021 & 2025 Draft LCR Study Results Humboldt Area Irina Green Senior Advisor Regional Transmission Engineer Stakeholder Call March 16, 2020 ISO Public ISO Public Humboldt Area Transmission System 60 kV Maple System Ridge Creek

slide-1
SLIDE 1

ISO Public ISO Public

2021 & 2025 Draft LCR Study Results Humboldt Area

Irina Green Senior Advisor Regional Transmission Engineer Stakeholder Call March 16, 2020

slide-2
SLIDE 2

ISO Public

Humboldt Area Transmission System

Slide 2

Wildwood Trinity Humboldt

Ridge Cabin

60 kV 60 kV 60 kV

115 kV 115 kV 115 kV Maple Creek

Bridgeville

115 kV 115 kV

Cottonwood

115 kV

Low Gap Garberville Kekawaka Laytonville

60 kV 60 kV 60 kV 60 kV 60 kV

~ ~ ~ ~ ~ ~ ~ ~ ~

Humboldt Bay

~ ~ ~

60 kV System

Pacific Lumber

~

slide-3
SLIDE 3

ISO Public

Humboldt: Load and Resources

Slide 3

Load (MW) 2021 2025 Generation (MW) 2021 2025 Gross Load 151 151 Market/ Net Seller 191 191 AAEE

  • 8
  • 8

Solar Behind the meter DG Wind Net Load 143 143 Muni Transmission Losses 10 10 QF Pumps Future preferred resource and energy storage Load + Losses + Pumps 153 153 Total Qualifying Capacity 191 191

slide-4
SLIDE 4

ISO Public

Topology changes

Transmission Additions:

  • No new transmission additions

Resource Additions:

  • No new resource additions

Resource Retirements:

  • No new retirements

Slide 4

slide-5
SLIDE 5

ISO Public

Humboldt Area : Requirements

Slide 5

Year Category Limiting Facility Contingency LCR (MW) (Deficiency) 2021 P6 Thermal overload on Humboldt

  • Trinity 115 kV line

Cottonwood – Bridgeville 115 kV line + Humboldt – Humboldt Bay 115kV line 130 2025 P6 Thermal overload on Humboldt

  • Trinity 115 kV line

Cottonwood – Bridgeville 115 kV line + Humboldt – Humboldt Bay 115kV line 132 Wildwood Trinity Humboldt

Ridge Cabin

60 kV 60 kV 60 kV

115 kV 115 kV 115 kV Maple Creek

Bridgeville

115 kV 115 kV

Cottonwood

115 kV

Low Gap Garberville Kekawaka Laytonville

60 kV 60 kV 60 kV 60 kV 60 kV

~ ~ ~ ~ ~ ~ ~ ~ ~

Humboldt Bay

~ ~ ~

60 kV System

Pacific Lumber

~

slide-6
SLIDE 6

ISO Public

Slide 6

Subarea 2020 2021 Load LCR Load LCR Humboldt 153 130 153 130

  • The CAISO and PG&E to continue to explore and address

challenges related to winter peak load forecasting for use in local area studies.

  • The results above represent the studies done last year.

Changes between years

Subarea 2024 2025 Load LCR Load LCR Humboldt 153 132 153 132

slide-7
SLIDE 7

ISO Public

Humboldt Area Total LCR Need

Slide 7

2021 LCR Need Existing Generation Capacity Needed (MW) Deficiency (MW) Total MW Need Category P6 130 130 2025 LCR Need Existing Generation Capacity Needed (MW) Deficiency (MW) Total MW Need Category P6 132 132