2020 & 2024 Final LCR Study Results Stockton Area Ebrahim - - PowerPoint PPT Presentation

▶

Jul 04, 2023 145 likes •320 views

2020 & 2024 Final LCR Study Results Stockton Area Ebrahim Rahimi Lead Regional Transmission Engineer Stakeholder Call April 10, 2019 ISO Public ISO Public Stockton Area Transmission System & LCR Subareas Legend: Legend: Rio Oso

SLIDE 1

ISO Public ISO Public

2020 & 2024 Final LCR Study Results Stockton Area

Ebrahim Rahimi Lead Regional Transmission Engineer Stakeholder Call April 10, 2019

SLIDE 2

ISO Public

Stockton Area Transmission System & LCR Subareas

Slide 2

Legend:

Bellota 230 kV Weber 60 kV

Weber LCR Sub-Area

60 kV

Weber 230 kV Tesla 230 kV

230 kV

Stockton A 60 kV Santa Fe 60 kV Santa Fe 60 kV Hazelton JCT 60 kV

Legend:

Rio Oso 230 kV Lockeford 60 kV

Lockeford LCR Sub-Area

Lodi 60 kV Industrial 60 kV 60 kV Colony 60 kV Victor 60 kV Lockeford 230 kV Bellota 230 kV 230 kV Wodberg 60 kV

Manteca 115 kV

Legend:

115 kV Kasson 115 kV Vierra 115 kV Schulte Tesla 115 kV

Tesla-Bellota LCR Sub-Area in 2020

Tracy Salado 115 kV Ingram Creek 115 kV

GWF Tracy Units Lammers Melones 115 kV Bellota 115 kV Riverbank 115 kV Tulloch 115 kV Stanislaus 115 kV Ripon 115 kV Riverbank JCT 115 kV Bellota 230 kV

SLIDE 3

ISO Public

New major transmission projects

Slide 3

Project Name Expected ISD Year 2020 Ripon 115 kV Line Apr-19 Stockton A – Weber #1 & #2 60 kV lines Reconductor May-19 Year 2024 Vierra 115 kV Looping Project Feb-23

SLIDE 4

ISO Public

Power plant changes

Additions:

No new resource addition

Retirements:

No new retirements

Slide 4

SLIDE 5

ISO Public

Stockton Area Overall: Load and Resources

Slide 5

Load (MW) 2020 2024 Generation (MW) 2020 2024 Gross Load 1,270 1,360 Market/ Net Seller/ Battery 497 543 AAEE

Solar 1 1 Behind the meter DG Wind Net Load 1,254 1,308 Muni 137 137 Transmission Losses 22 21 QF 18 18 Pumps Future preferred resource and energy storage Load + Losses + Pumps 1,275 1,329 Total Qualifying Capacity 653 699

SLIDE 6

ISO Public

Lockeford Sub Area : Requirements

Slide 6

Year Category Limiting Facility Contingency LCR (MW) (Deficiency) 2020 B Lockeford – Lodi #2 60 kV Lockeford-Industrial 60 kV line and Loci CT 48 (24) 2020 C Lockeford – Lodi #3 60 kV Lockeford-Industrial and Lockeford – Lodi #2 60 kV lines 97 (73) 2024 B Lockeford – Lodi #2 60 kV Lockeford-Industrial 60 kV line and Loci CT 53 (29) 2024 C Lockeford – Lodi #3 60 kV Lockeford-Industrial and Lockeford – Lodi #2 60 kV lines 102 (78)

Lockeford Lodi Industrial

New Hope Colony Victor Lodi Jct Lockeford-Lodi #1 Lockeford-Industrial Lockeford-Lodi #2 Lockeford-Lodi #3

Legend:

60 kV

X X X

Contingency Overload

SLIDE 7

ISO Public

Lockeford Subarea: Load Profiles

Slide 7

SLIDE 8

ISO Public

Weber Sub Area : Requirements

Slide 8

Year Category Limiting Facility Contingency LCR (MW) (Deficiency) 2020 B None None No requirement 2020 C Stockton A-Weber #3 Stockton A-Weber #1 and #2 60 kV lines 26 2024 B None None No requirement 2024 C Stockton A-Weber #3 Stockton A-Weber #1 and #2 60 kV lines 26

Legend:

Bellota 230 kV Weber 60 kV

Weber LCR Sub-Area

60 kV 230 kV

Stockton A 60 kV Santa Fe 60 kV Hazelton JCT 60 kV

Contingency Overload

X X

SLIDE 9

ISO Public

Weber Subarea: Load Profiles

Slide 9

SLIDE 10

ISO Public

Stanislaus Sub Area : Requirements

Slide 10

Year Category Limiting Facility Contingency LCR (MW) (Deficiency) 2020 B Manteca - Ripon 115 kV Line Bellota-Riverbank-Melones 115 kV line and Stanislaus PH unit 179 2020 C Same as Category B 2024 B Manteca - Ripon 115 kV Line Bellota-Riverbank-Melones 115 kV line and Stanislaus PH unit 185 2024 C Same as Category B

Manteca 115 kV Melones 115 kV Bellota 115 kV Riverbank 115 kV Tulloch 115 kV Stanislaus 115 kV Ripon 115 kV Bellota – Riverbank – Melones SW STA Bellota – Riverbank Riverbank JCT SW STA - Menteca Stanislaus – Melones SW STA - Manteca Stanislaus – Manteca #2 Riverbank JCT 115 kV

X Legend:

115 kV

Contingency Overload

SLIDE 11

ISO Public

Stanislaus Subarea: Flow Profiles

Slide 11

SLIDE 12

ISO Public

Slide 12

Year

Tesla - Bellota Sub Area : Requirements

Manteca 115 kV

Legend:

115 kV Kasson 115 kV Vierra 115 kV Schulte Tesla 115 kV

Tesla-Bellota LCR Sub-Area in 2020

Tracy Salado 115 kV Ingram Creek 115 kV

GWF Tracy Units Lammers

X X

Melones 115 kV Bellota 115 kV Riverbank 115 kV Tulloch 115 kV Stanislaus 115 kV Ripon 115 kV Riverbank JCT 115 kV Bellota 230 kV

Tesla-Bellota LCR Sub-Area in 2024

Manteca 115 kV Kasson 115 kV Schulte Tesla 115 kV Tracy Salado 115 kV Ingram Creek 115 kV

GWF Tracy Units Lammers Vierra 115 kV Thermal Energy

Legend:

115 kV

X X

Melones 115 kV Bellota 115 kV Riverbank 115 kV Tulloch 115 kV Stanislaus 115 kV Ripon 115 kV Riverbank JCT 115 kV Bellota 230 kV

SLIDE 13

ISO Public

Tesla-Bellota Subarea: Flow Profiles

Slide 13

SLIDE 14

ISO Public

Slide 14

Subarea 2019 2020 Load LCR Load LCR Lockeford 184 83 (59) 190 97 (73) Weber 229 21 238 26 Stanislaus N/A 152 N/A 179 Tesla - Bellota 761 673 (291) 848 1,117 (538 NQC/ 539 Peak) Total 1,174 777 (350) 1,275 1,241 (612 NQC/ 613 Peak)

LCR increases is mostly due to load increase. The load has a much higher effectiveness factor than the most effective resource.

N/A=Flow-through area. No defined load pocket.

Changes from 2019 to 2020

SLIDE 15

ISO Public

Changes from 2023 to 2024

Slide 15

LCR increases is mostly due to load increase. The load has a much higher effectiveness factor than the most effective resource.

N/A=Flow-through area. No defined load pocket.

Subarea 2023 2024 Load LCR Load LCR Lockeford 198 103 (79) 193 102 (78) Weber 219 21 238 26 Stanislaus N/A 147 N/A 185 Tesla - Bellota 809 319 (78) 899 881 (256 NQC/ 257 Peak) Total 1,226 439 (157) 1,330 1,009 (334 NQC/ 335 Peak)

SLIDE 16

ISO Public

Stockton Area Total LCR Need

Slide 16

2020 LCR Need Existing Generation Capacity Needed (MW) Deficiency (MW) Total MW Need Category B (Single) 603 (84 NQC/ 85 Peak) 687 Category C (Multiple) 629 (612 NQC/ 613 Peak) 1,241 2024 LCR Need Existing Generation Capacity Needed (MW) Deficiency (MW) Total MW Need Category B (Single) 414 29 443 Category C (Multiple) 675 (334 NQC/ 335 Peak) 1,009