Study Results Common Case Study This slide deck contains results from the 2011 TEPPC Study Program. This study shows the results of the 2022 Common Case.

Study Results

Common Case Study

This slide deck contains results from the 2011 TEPPC Study Program. This study shows the results of the 2022 Common Case. This study serves as a base case for all 2011 and 2012 studies.

2

2022 PC1 – Common Case

• Central Question: What impact will future load growth and generation needs (as defined by the input assumptions) have on transmission congestion in the Western Interconnection?

• These Results will be used as the starting input assumptions for all 2011 and 2012 studies.

• Results follow…2

3

2022 Common Case Results – Annual Generation by Resource Type

Conventional Hydro24%

Steam - Coal26%

Nuclear7%

Combined Cycle15%

Combustion Turbine1%

Cogeneration8%

Other1%

Biomass RPS 1%Geothermal 4%

Small Hydro RPS 1%

Solar 3% Wind 8%

WECC 2022 Energy Generation by Type (2022 Common Case)

Other Annual Generation Results

Dump Energy (aMW) 45

Emergency Energy (aMW) 0.3

CO2 Emissions (MMetricTons) 359

CO2 Adder ($/metric ton) 0.000

Variable Production Cost (thermal units excl DSM)

CO2 Adder (Total M$) 0

Other Variable Costs (M$) 14,851

Total Var. Prod. Cost (M$) 14,851

DRAFT

6

2022 Common Case Results – Region to Region Transfers

Hourly transfers Presented at the end of this presentation.

AZNMNV To Ca_S

Basin To AZNMNV

Basin To Ca_N

Basin To Ca_S

Ca_N To Ca_S

Canada To NWUS

NWUS To Basin

NWUS To Ca_N

NWUS To Ca_S

RMPA To AZNMNV

RMPA To Basin

-2000

-1000

0

1000

2000

3000

4000

5000

Region to Region Transfers - aMW

2020 2022

7

• “Most Heavily Utilized” = A path that meets any one of the following criterion (10-year plan utilization screening):oU75 > 50%oU90 > 20%oU99 > 5%

• Uxx = % of year that flow is greater than xx% of the path limit

2022 Common Case Results – Most Heavily Utilized Paths

8

P45 S

DG&E-CFE

P26 N

orth

ern-

South

ern

Califo

rnia

P08 M

onta

na to

Nor

thwes

t

P03 N

orth

west-B

ritish

Colu

mbia

P29 In

term

ount

ain-G

onde

r 230

kV

P47 S

outh

ern

New M

exico

(NM

1)

P60 In

yo-C

ontro

l 115

kV T

ie

P27 In

term

ount

ain P

ower

Pro

ject D

C Line

P01 A

lberta

-Brit

ish C

olum

bia

P11 W

est o

f Cro

ssov

er

P10 W

est o

f Cols

trip

0.00%

10.00%

20.00%

30.00%

40.00%

50.00%

60.00%

70.00%

Most Heavily Utilized Paths - 2022 PC1 Common CaseSorted by U90

U75 U90 U99

2022 Common Case Results – Most Heavily Utilized Paths

9

Hourly region-to-region transfersAZNMNV To Ca_S

-8000

-6000

-4000

-2000

0

2000

4000

6000

8000

122

043

965

887

710

9613

1515

3417

5319

7221

9124

1026

2928

4830

6732

8635

0537

2439

4341

6243

8146

0048

1950

3852

5754

7656

9559

1461

3363

5265

7167

9070

0972

2874

4776

6678

8581

0483

2385

42

AZNMNV To Ca_S

10

Hourly region-to-region transfersBasin To AZNMNV

-1000

-500

0

500

1000

1500

2000

2500

122

043

965

887

710

9613

1515

3417

5319

7221

9124

1026

2928

4830

6732

8635

0537

2439

4341

6243

8146

0048

1950

3852

5754

7656

9559

1461

3363

5265

7167

9070

0972

2874

4776

6678

8581

0483

2385

42

Basin To AZNMNV

11

Hourly region-to-region transfersBasin To Ca_N

-200

-150

-100

-50

0

50

100

150

121

542

964

385

710

7112

8514

9917

1319

2721

4123

5525

6927

8329

9732

1134

2536

3938

5340

6742

8144

9547

0949

2351

3753

5155

6557

7959

9362

0764

2166

3568

4970

6372

7774

9177

0579

1981

3383

4785

61

Basin To Ca_N

12

Hourly region-to-region transfersBasin To Ca_S

-1000

-500

0

500

1000

1500

2000

2500

3000

122

043

965

887

710

9613

1515

3417

5319

7221

9124

1026

2928

4830

6732

8635

0537

2439

4341

6243

8146

0048

1950

3852

5754

7656

9559

1461

3363

5265

7167

9070

0972

2874

4776

6678

8581

0483

2385

42

Basin To Ca_S

13

Hourly region-to-region transfersCa_N To Ca_S

-4000

-3000

-2000

-1000

0

1000

2000

3000

4000

5000

122

043

965

887

710

9613

1515

3417

5319

7221

9124

1026

2928

4830

6732

8635

0537

2439

4341

6243

8146

0048

1950

3852

5754

7656

9559

1461

3363

5265

7167

9070

0972

2874

4776

6678

8581

0483

2385

42

Ca_N To Ca_S

14

Hourly region-to-region transfersCanada To NWUS

-2000

-1000

0

1000

2000

3000

4000

122

043

965

887

710

9613

1515

3417

5319

7221

9124

1026

2928

4830

6732

8635

0537

2439

4341

6243

8146

0048

1950

3852

5754

7656

9559

1461

3363

5265

7167

9070

0972

2874

4776

6678

8581

0483

2385

42

Canada To NWUS

15

Hourly region-to-region transfersNWUS To Basin

-4000

-3000

-2000

-1000

0

1000

2000

3000

4000

122

043

965

887

710

9613

1515

3417

5319

7221

9124

1026

2928

4830

6732

8635

0537

2439

4341

6243

8146

0048

1950

3852

5754

7656

9559

1461

3363

5265

7167

9070

0972

2874

4776

6678

8581

0483

2385

42

NWUS To Basin

16

Hourly region-to-region transfersNWUS To Ca_N

-2000

-1000

0

1000

2000

3000

4000

5000

6000

122

043

965

887

710

9613

1515

3417

5319

7221

9124

1026

2928

4830

6732

8635

0537

2439

4341

6243

8146

0048

1950

3852

5754

7656

9559

1461

3363

5265

7167

9070

0972

2874

4776

6678

8581

0483

2385

42

NWUS To Ca_N

17

Hourly region-to-region transfersNWUS To Ca_S

-1000

-500

0

500

1000

1500

2000

2500

3000

3500

122

043

965

887

710

9613

1515

3417

5319

7221

9124

1026

2928

4830

6732

8635

0537

2439

4341

6243

8146

0048

1950

3852

5754

7656

9559

1461

3363

5265

7167

9070

0972

2874

4776

6678

8581

0483

2385

42

NWUS To Ca_S

18

Hourly region-to-region transfersRMPA To AZNMNV

-800

-600

-400

-200

0

200

400

600

800

1000

1200

121

542

964

385

710

7112

8514

9917

1319

2721

4123

5525

6927

8329

9732

1134

2536

3938

5340

6742

8144

9547

0949

2351

3753

5155

6557

7959

9362

0764

2166

3568

4970

6372

7774

9177

0579

1981

3383

4785

61

RMPA To AZNMNV

19

Hourly region-to-region transfersRMPA To Basin

-3000

-2500

-2000

-1500

-1000

-500

0

500

1000

1500

2000

122

043

965

887

710

9613

1515

3417

5319

7221

9124

1026

2928

4830

6732

8635

0537

2439

4341

6243

8146

0048

1950

3852

5754

7656

9559

1461

3363

5265

7167

9070

0972

2874

4776

6678

8581

0483

2385

42

RMPA To Basin

20

Hourly region-to-region transfersCalifornia Net Export

Hours of net export = 6053 hrs

1 2 3 4 5 6 7 8 9 10 11 12

-900

-800

-700

-600

-500

-400

-300

-200

-100

0

Net Export from California - Average by Month

aMW

Questions or thoughts on this study?