10 year study results california resource option
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10-Year Study Results California Resource Option. Study Concept Starting case: 2022 High Load (PC1-5) Increase WECC annual energy demand 8% Results in additional 12,000 GWh of RPS resource requirements (per statutes) Model added 12,000 GWh in regions throughout WECC (w/ transmission) Goal

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10-Year Study Results California Resource Option

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10 year study results california resource option

10-Year Study ResultsCalifornia Resource Option


Renewable options under high load cases the basics

Study Concept

Starting case: 2022 High Load (PC1-5)

Increase WECC annual energy demand 8%

Results in additional 12,000 GWh of RPS resource requirements (per statutes)

Model added 12,000 GWh in regions throughout WECC (w/ transmission)

Goal

Compare different resource and transmission options

Total (capital and production) cost comparisons

Will be shown at a later date

Renewable Options Under High Load CasesThe Basics


10 year study results california resource option

  • Renewable Options Under High Load Cases

Increase WECC-wide load 8%

1

Add: 12,000 GWh to meet WECC RPS

2

3

Add transmission

For these regions


10 year study results california resource option

Increase WECC-wide load 8%

1

8%

8% increase to peak and energy

10%

10% decrease to energy

Higher Load = Additional RPS Energy


10 year study results california resource option

Add 12,000 GWh to meet WECC RPS

2

Extrapolation Method


Resource option studies breakdown of incremental 12 000 gwh

Resource Option StudiesBreakdown of Incremental 12,000 GWh

Wind Solar PV Solar Thermal Small Hydro Geothermal Biomass RPS


10 year study results california resource option

1- Check PRM

2 - Add CTs (if needed)

=

Higher load and new resources


10 year study results california resource option

PC1-5 High Load PRM Gap

1) Added CTs in 100 MW increments to make up this 11,426 MW PRM Gap

2) CT’s were adjusted in Renewable Options Under High Load studies


10 year study results california resource option

Additional resources change this number


10 year study results california resource option

3 fewer CTs needed in Basin

This makes sense:

3,000 MW wind × 10% = 300 MW to peak = 3 fewer CTs


10 year study results california resource option

3

Add transmission

  • Transmission Expansion Projects

Path 8 Upgrade

MSTI + SWIP N

Selkirk – Bell – Ashe

Nicola – Chief Joe

Selkirk – Ashe DC

Selkirk – Buckley DC

WY-CO Intertie

TransWest Express

Zephyr A /B/C/D

High Plains Express

SSPG East

SSPG North

SSPG South

High Plains Express

None

Centennial West


Now to the results

Now to the results…

  • Resource assumption overview

  • Portfolio Case generation results (versus PC1-5 High Load)

  • Transmission projects overview

  • Expansion case generation results (versus PC1-5 High Load and Portfolio Case)

  • Path flow results - Reviewed duration plots for key WECC paths. Will show some that are interesting in this presentation.


California resource assumptions

CaliforniaResource Assumptions

Gates

+ 697

Tehachapi

+ 1078

+ 100

+ 60

Lugo

+ 646

+ 371

Imperial Valley

+299

+ 1121

Wind Solar PV Solar Thermal Small Hydro Geothermal Biomass RPS


10 year study results california resource option

AZ, NV, CA

Production cost decreased $413 M (2.4%)

Dump energy increased 3 GWh (.9%)

Emergency Energy decreased 0%

CO2 Emissions decreased 1.1%


10 year study results california resource option

Decrease from PC1

Increase from CC


10 year study results california resource option

Decrease from CC

No change


10 year study results california resource option

No change

Decrease from CC


10 year study results california resource option

No change

No change


10 year study results california resource option

Results at next SWG meeting


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