Estimated Retail Rate Impacts of AEPCO Member Retail Distribution Cooperatives Under Scena

SCENARIO A:

Members Pay 100% SCR Cost, 

Regardless of Off-System Sales of 

Apache Production

Member Cooperative Residential Commercial Industrial Combined

Mohave Electric Cooperative, Inc $ 1,212 $ 5,458 $ 286,577 $ 1,836

Sulphur Springs Valley E C Inc $ 1,203 $ 4,659 $ 1,461,500 $ 1,973

Trico Electric Cooperative Inc $ 1,532 $ 12,823 $ 85,022 $ 2,160

Graham County Electric Coop Inc $ 1,357 $ 5,557 $ 264,000 $ 2,354

Anza Electric Coop Inc $ 1,504 $ 6,264 $ 18,067 $ 1,878

Duncan Valley Elec Coop, Inc $ 1,199 $ 2,366 $ 4,330 $ 1,459

SCENARIO B:

Members Pay a Portion of SCR Cost & 

The Portion Sold to Off-System 

Covers its Share of SCR Cost

Member Cooperative Residential Commercial Industrial Combined

Mohave Electric Cooperative, Inc 1,212 $ 5,458 $ 286,577 $ 1,836

Sulphur Springs Valley E C Inc $ 1,203 $ 4,659 $ 1,461,500 $ 1,973

Trico Electric Cooperative Inc $ 1,532 $ 12,823 $ 85,022 $ 2,160

Graham County Electric Coop Inc $ 1,357 $ 5,557 $ 264,000 $ 2,354

Anza Electric Coop Inc $ 1,504 $ 6,264 $ 18,067 $ 1,878

Duncan Valley Elec Coop, Inc $ 1,199 $ 2,366 $ 4,330 $ 1,459

* Member cost responsibility estimate is based on 2012 projected member sales escalated 1.1% per year to 2019, and AE

 Assumes that Member coops receive all their consumed MWhs from Apache production and remaining balance is sold o

 Estimated 2019 Apache production (kWh):

 Estimated 2019 Member load (kWh):

 Allocated % of SCR cost to Members in 2019: 83%

2011 Average Retail Consumer Cost

($)

2011 Average Retail Consumer Cost

($)

 3,037,968,000

 2,513,086,574
 Cooperatives Under Scenarios Varying Due to Cost Allocation

Residential

% 

Increase Commercial

% 

Increase Industrial

% 

Increase Combined

% 

Increase

$ 129 10.6% $ 665 12.2% $ 54,530 19.0% $ 220 12.0%

$ 79 6.6% $ 386 8.3% $ 135,763 9.3% $ 148 7.5%

$ 83 5.4% $ 819 6.4% $ 6,614 7.8% $ 125 5.8%

$ 112 8.3% $ 472 8.5% $ 26,251 9.9% $ 204 8.7%

$ 107 7.1% $ 437 7.0% $ 1,286 7.1% $ 133 7.1%

$ 124 10.3% $ 269 11.4% $ 477 11.0% $ 155 10.6%

Residential

% 

Increase Commercial

% 

Increase Industrial

% 

Increase Combined

% 

Increase

$ 107 8.8% $ 550 10.1% $ 45,108 15.7% $ 182 9.9%

$ 66 5.5% $ 319 6.8% $ 112,307 7.7% $ 122 6.2%

$ 69 4.5% $ 677 5.3% $ 5,471 6.4% $ 103 4.8%

$ 93 6.9% $ 391 7.0% $ 21,716 8.2% $ 169 7.2%

$ 89 5.9% $ 362 5.8% $ 1,064 5.9% $ 110 5.9%

$ 102 8.5% $ 223 9.4% $ 394 9.1% $ 128 8.8%

ated 1.1% per year to 2019, and AEPCO estimated Apache production.

on and remaining balance is sold off-system. 

2019 Incremental Retail Electric Cost Due to SCR:

SCR Cost Total Paid for by Member Coops

(incremental $/cust/year & % increase over 2011 Average Retail Rates)

2019 Incremental Retail Electric Cost Due to SCR:

SCR Cost Total Paid for by Member Coops

(incremental $/cust/year & % increase over 2011 Average Retail Rates)

Estimated Retail Rate Impacts of AEPCO Member Retail Distribution Cooperatives Under Scena

SCENARIO A:

Members Pay 100% SCR Cost, 

Regardless of Off-System Sales of 

Apache Production

Member Cooperative Residential Commercial Industrial Combined

Mohave Electric Cooperative, Inc $ 1,212 $ 5,458 $ 286,577 $ 1,836

Sulphur Springs Valley E C Inc $ 1,203 $ 4,659 $ 1,461,500 $ 1,973

Trico Electric Cooperative Inc $ 1,532 $ 12,823 $ 85,022 $ 2,160

Graham County Electric Coop Inc $ 1,357 $ 5,557 $ 264,000 $ 2,354

Anza Electric Coop Inc $ 1,504 $ 6,264 $ 18,067 $ 1,878

Duncan Valley Elec Coop, Inc $ 1,199 $ 2,366 $ 4,330 $ 1,459

SCENARIO B:

Members Pay a Portion of SCR Cost & 

The Portion Sold to Off-System 

Covers its Share of SCR Cost

Member Cooperative Residential Commercial Industrial Combined

Mohave Electric Cooperative, Inc 1,212 $ 5,458 $ 286,577 $ 1,836

Sulphur Springs Valley E C Inc $ 1,203 $ 4,659 $ 1,461,500 $ 1,973

Trico Electric Cooperative Inc $ 1,532 $ 12,823 $ 85,022 $ 2,160

Graham County Electric Coop Inc $ 1,357 $ 5,557 $ 264,000 $ 2,354

Anza Electric Coop Inc $ 1,504 $ 6,264 $ 18,067 $ 1,878

Duncan Valley Elec Coop, Inc $ 1,199 $ 2,366 $ 4,330 $ 1,459

* Member cost responsibility estimate is based on 2012 projected member sales escalated 1.1% per year to 2019, and AE

 Assumes that Member coops receive all their consumed MWhs from Apache production and remaining balance is sold o

 Estimated 2019 Apache production (kWh):

 Estimated 2019 Member load (kWh):

 Allocated % of SCR cost to Members in 2019: 83%

2011 Average Retail Consumer Cost

($)

2011 Average Retail Consumer Cost

($)

 3,037,968,000

 2,513,086,574
 Cooperatives Under Scenarios Varying Due to Cost Allocation

Residential

% 

Increase Commercial

% 

Increase Industrial

% 

Increase Combined

% 

Increase

$ 129 10.6% $ 665 12.2% $ 54,530 19.0% $ 220 12.0%

$ 79 6.6% $ 386 8.3% $ 135,763 9.3% $ 148 7.5%

$ 83 5.4% $ 819 6.4% $ 6,614 7.8% $ 125 5.8%

$ 112 8.3% $ 472 8.5% $ 26,251 9.9% $ 204 8.7%

$ 107 7.1% $ 437 7.0% $ 1,286 7.1% $ 133 7.1%

$ 124 10.3% $ 269 11.4% $ 477 11.0% $ 155 10.6%

Residential

% 

Increase Commercial

% 

Increase Industrial

% 

Increase Combined

% 

Increase

$ 107 8.8% $ 550 10.1% $ 45,108 15.7% $ 182 9.9%

$ 66 5.5% $ 319 6.8% $ 112,307 7.7% $ 122 6.2%

$ 69 4.5% $ 677 5.3% $ 5,471 6.4% $ 103 4.8%

$ 93 6.9% $ 391 7.0% $ 21,716 8.2% $ 169 7.2%

$ 89 5.9% $ 362 5.8% $ 1,064 5.9% $ 110 5.9%

$ 102 8.5% $ 223 9.4% $ 394 9.1% $ 128 8.8%

ated 1.1% per year to 2019, and AEPCO estimated Apache production.

on and remaining balance is sold off-system. 

2019 Incremental Retail Electric Cost Due to SCR:

SCR Cost Total Paid for by Member Coops

(incremental $/cust/year & % increase over 2011 Average Retail Rates)

2019 Incremental Retail Electric Cost Due to SCR:

SCR Cost Total Paid for by Member Coops

(incremental $/cust/year & % increase over 2011 Average Retail Rates)

Estimated Retail Rate Impacts of AEPCO Member Retail Distribution Cooperatives Under Scenarios Varying D

SCENARIO A:

Members Pay 100% SCR Cost, 

Regardless of Off-System Sales of 

Apache Production

Member Cooperative

Avg. 

cents/kWh

Mohave Electric Cooperative, Inc $ 11.53 $ 10.07 $ 6.44 $ 10.23 $ 1.23

Sulphur Springs Valley E C Inc $ 13.69 $ 10.91 $ 9.72 $ 12.04 $ 0.90

Trico Electric Cooperative Inc $ 14.31 $ 12.17 $ 9.99 $ 13.44 $ 0.78

Graham County Electric Coop Inc $ 13.49 $ 13.15 $ 11.23 $ 12.89 $ 1.12

Anza Electric Coop Inc $ 18.09 $ 18.47 $ 18.11 $ 18.17 $ 1.29

Duncan Valley Elec Coop, Inc $ 13.05 $ 11.85 $ 12.24 $ 12.68 $ 1.35

SCENARIO B:

Members Pay a Portion of SCR 

Cost & The Portion Sold to OffSystem Covers its Share of SCR 

Cost

Member Cooperative

Avg. 

cents/kWh

Mohave Electric Cooperative, Inc $ 11.53 $ 10.07 $ 6.44 $ 10.23 $ 1.01

Sulphur Springs Valley E C Inc $ 13.69 $ 10.91 $ 9.72 $ 12.04 $ 0.75

Trico Electric Cooperative Inc $ 14.31 $ 12.17 $ 9.99 $ 13.44 $ 0.64

Graham County Electric Coop Inc $ 13.49 $ 13.15 $ 11.23 $ 12.89 $ 0.92

Anza Electric Coop Inc $ 18.09 $ 18.47 $ 18.11 $ 18.17 $ 1.07

Duncan Valley Elec Coop, Inc $ 13.05 $ 11.85 $ 12.24 $ 12.68 $ 1.11

* Member cost responsibility estimate is based on 2012 projected member sales escalated 1.1% per year to 2019, and AE

 Assumes that Member coops receive all their consumed MWhs from Apache production and remaining balance is sold o

 Estimated 2019 Apache production (kWh):

 Estimated 2019 Member load (kWh):

 Allocated % of SCR cost to Members in 2019:

Earthjustice 

Report

2010 2011

Impact on 

2010 Rates

Impact on 

2010 Rates

Impact on 

2011 Rates

Mohave Electric Cooperative $ 11.13 $ 11.53 4.8% 5.9% 5.7%

Commercial Industrial Combined

83%

Commercial

 2,513,086,574

2011 Average Retail Electric Rate

(cents/kWh)

2011 Average Retail Electric Rate

(cents/kWh)

 3,037,968,000

Residential Industrial Combined

Residential

Comparison Between Study Results: Earthjustice Report and Independent Model Outcomes

2010 and 2011 Rate Impacts due to SCR with Varying Capital Estimates

AEPCO Member Cooperative

Avg. Residential Rates as 

Reported in EIA 861

Independent Model

Assuming Capital Cost Estimate of 

Earthjustice of $80M
Sulphur Springs Valley E C $ 13.46 $ 13.69 3.0% 3.7% 3.6%

Trico Electric Cooperative $ 15.50 $ 14.31 2.2% 2.8% 2.9%

Graham County Electric Coop $ 13.62 $ 13.49 3.7% 4.9% 4.5%

Anza Electric Coop $ 19.43 $ 18.09 2.7% 3.7% 3.8%

Duncan Valley Elec Coop $ 13.45 $ 13.05 3.7% 5.7% 5.6%

Class-A Member Average $ 13.60 $ 13.37 3.30% 4.0% 3.9%
Under Scenarios Varying Due to Cost Allocation

$/Customer/Y

ear % Increase

Avg. 

cents/kWh

$/Customer/

Year

% 

Increase

Avg. 

cents/kWh

$/Customer/

Year

% 

Increase

$ 129 10.6% $ 1.23 $ 665 12.2% $ 1.23 $ 54,530 19.0%

$ 79 6.6% $ 0.90 $ 386 8.3% $ 0.90 $ 135,763 9.3%

$ 83 5.4% $ 0.78 $ 819 6.4% $ 0.78 $ 6,614 7.8%

$ 112 8.3% $ 1.12 $ 472 8.5% $ 1.12 $ 26,251 9.9%

$ 107 7.1% $ 1.29 $ 437 7.0% $ 1.29 $ 1,286 7.1%

$ 124 10.3% $ 1.35 $ 269 11.4% $ 1.35 $ 477 11.0%

$/Customer/Y

ear % Increase

Avg. 

cents/kWh

$/Customer/

Year

% 

Increase

Avg. 

cents/kWh

$/Customer/

Year

% 

Increase

$ 107 8.8% $ 1.01 $ 550 10.1% $ 1.01 $ 45,108 15.7%

$ 66 5.5% $ 0.75 $ 319 6.8% $ 0.75 $ 112,307 7.7%

$ 69 4.5% $ 0.64 $ 677 5.3% $ 0.64 $ 5,471 6.4%

$ 93 6.9% $ 0.92 $ 391 7.0% $ 0.92 $ 21,716 8.2%

$ 89 5.9% $ 1.07 $ 362 5.8% $ 1.07 $ 1,064 5.9%

$ 102 8.5% $ 1.11 $ 223 9.4% $ 1.11 $ 394 9.1%

.1% per year to 2019, and AEPCO estimated Apache production.

d remaining balance is sold off-system. 

Impact on 

2010 Rates

Impact on 

2011 Rates

9.1% 8.8%

Residential

2019 Incremental Retail Electric Cost Due to SCR:

SCR Cost Total Paid for by Member Coops

(cents/kWh, incremental $ per year per customer, & % increase over 2011 Average Retail Rates)

2019 Incremental Retail Electric Cost Due to SCR:

SCR Cost Partially Paid by Members, Partially Paid by Market Sales*

(cents/kWh, incremental $ per year per customer, & % increase over 2011 Average Retail Rates)

Commercial Industrial

Residential Commercial Industrial

ndent Model Outcomes

ital Estimates

Independent Model

Assuming Capital Cost 

Estimate of EPA of ~$164M
5.6% 5.5%

4.1% 4.5%

6.8% 6.9%

5.5% 5.9%

8.3% 8.5%

6.2% 6.1%
Avg. 

cents/kWh $ / Year

% 

Increase

$ 1.23 $ 220 12.0%

$ 0.90 $ 148 7.5%

$ 0.78 $ 125 5.8%

$ 1.12 $ 204 8.7%

$ 1.29 $ 133 7.1%

$ 1.35 $ 155 10.6%

Avg. 

cents/kWh $ / Year

% 

Increase

$ 1.01 $ 182 9.9%

$ 0.75 $ 122 6.2%

$ 0.64 $ 103 4.8%

$ 0.92 $ 169 7.2%

$ 1.07 $ 110 5.9%

$ 1.11 $ 128 8.8%

age Retail Rates)

age Retail Rates)

Combined

Combined
Estimated Retail Rate Impacts of AEPCO Member Retail Distribution Cooperatives Under Scenarios Varying D

SCENARIO A:

Members Pay 100% SCR Cost, 

Regardless of Off-System Sales of 

Apache Production

Member Cooperative

Avg. 

cents/kWh

Mohave Electric Cooperative, Inc $ 11.13 $ 9.84 $ 6.34 $ 9.91 $ 1.23

Sulphur Springs Valley E C Inc $ 13.46 $ 11.19 $ 9.15 $ 12.04 $ 0.90

Trico Electric Cooperative Inc $ 15.50 $ 13.50 $ 9.32 $ 14.64 $ 0.78

Graham County Electric Coop Inc $ 13.62 $ 13.25 $ 11.41 $ 13.03 $ 1.12

Anza Electric Coop Inc $ 19.43 $ 19.76 $ 19.24 $ 19.50 $ 1.29

Duncan Valley Elec Coop, Inc $ 13.45 $ 12.25 $ 13.22 $ 13.13 $ 1.35

SCENARIO B:

Members Pay a Portion of SCR Cost & 

The Portion Sold to Off-System 

Covers its Share of SCR Cost

Member Cooperative

Avg. 

cents/kWh

Mohave Electric Cooperative, Inc $ 11.13 $ 9.84 $ 6.34 $ 9.91 $ 1.01

Sulphur Springs Valley E C Inc $ 13.46 $ 11.19 $ 9.15 $ 12.04 $ 0.75

Trico Electric Cooperative Inc $ 15.50 $ 13.50 $ 9.32 $ 14.64 $ 0.64

Graham County Electric Coop Inc $ 13.62 $ 13.25 $ 11.41 $ 13.03 $ 0.92

Anza Electric Coop Inc $ 19.43 $ 19.76 $ 19.24 $ 19.50 $ 1.07

Duncan Valley Elec Coop, Inc $ 13.45 $ 12.25 $ 13.22 $ 13.13 $ 1.11

* Member cost responsibility estimate is based on 2012 projected member sales escalated 1.1% per year to 2019, and AE

 Assumes that Member coops receive all their consumed MWhs from Apache production and remaining balance is sold o

 Estimated 2019 Apache production (kWh):

 Estimated 2019 Member load (kWh):

 Allocated % of SCR cost to Members in 2019:

2010 Average Retail Electric Rate

(cents/kWh)

Residential Commercial Industrial Combined

Residential

 3,037,968,000

 2,513,086,574

83%

2010 Average Retail Electric Rate

(cents/kWh)

Residential Commercial Industrial Combined

Residential
er Scenarios Varying Due to Cost Allocation

$/Customer/

Year

% 

Increase

Avg. 

cents/kWh

$/Customer/

Year

% 

Increase

Avg. 

cents/kWh

$/Customer/

Year

% 

Increase

$ 129 11.0% $ 1.23 $ 665 12.5% $ 1.23 $ 54,530 19.4%

$ 79 6.7% $ 0.90 $ 386 8.1% $ 0.90 $ 135,763 9.9%

$ 83 5.0% $ 0.78 $ 819 5.8% $ 0.78 $ 6,614 8.3%

$ 112 8.2% $ 1.12 $ 472 8.4% $ 1.12 $ 26,251 9.8%

$ 107 6.6% $ 1.29 $ 437 6.5% $ 1.29 $ 1,286 6.7%

$ 124 10.0% $ 1.35 $ 269 11.0% $ 1.35 $ 477 10.2%

$/Customer/

Year

% 

Increase

Avg. 

cents/kWh

$/Customer/

Year

% 

Increase

Avg. 

cents/kWh

$/Customer/

Year

% 

Increase

$ 107 9.1% $ 1.01 $ 550 10.3% $ 1.01 $ 45,108 16.0%

$ 66 5.6% $ 0.75 $ 319 6.7% $ 0.75 $ 112,307 8.2%

$ 69 4.1% $ 0.64 $ 677 4.8% $ 0.64 $ 5,471 6.9%

$ 93 6.8% $ 0.92 $ 391 7.0% $ 0.92 $ 21,716 8.1%

$ 89 5.5% $ 1.07 $ 362 5.4% $ 1.07 $ 1,064 5.5%

$ 102 8.3% $ 1.11 $ 223 9.1% $ 1.11 $ 394 8.4%

 per year to 2019, and AEPCO estimated Apache production.

maining balance is sold off-system. 

2019 Incremental Retail Electric Cost Due to SCR:

SCR Cost Total Paid for by Member Coops

(cents/kWh, incremental $ per year per customer, & % increase over 2010 Average Retail Rates)

Residential Commercial Industrial

2019 Incremental Retail Electric Cost Due to SCR:

SCR Cost Partially Paid by Members, Partially Paid by Market Sales*

(cents/kWh, incremental $ per year per customer, & % increase over 2010 Average Retail Rates)

Residential Commercial Industrial
Avg. 

cents/kWh $ / Year

% 

Increase

$ 1.23 $ 220 12.4%

$ 0.90 $ 148 7.5%

$ 0.78 $ 125 5.3%

$ 1.12 $ 204 8.6%

$ 1.29 $ 133 6.6%

$ 1.35 $ 155 10.3%

Avg. 

cents/kWh $ / Year

% 

Increase

$ 1.01 $ 182 10.2%

$ 0.75 $ 122 6.2%

$ 0.64 $ 103 4.4%

$ 0.92 $ 169 7.1%

$ 1.07 $ 110 5.5%

$ 1.11 $ 128 8.5%

verage Retail Rates)

Combined

verage Retail Rates)

Combined
 Average Retail Price by State and Utility: Residential Sector, 2010. Highlighted columns ad

Run Date: 11/3/2011

 Number of Sales Revenue

 Entity State Consumers (MWh) (1,000 dollars)

Mohave Electric Cooperative, Inc AZ 34,672 365,162 40,649

Sulphur Springs Valley E C Inc AZ 41,454 367,327 49,436

Trico Electric Cooperative Inc AZ 37,806 400,596 62,093

Graham County Electric Coop Inc AZ 7,603 74,173 10,101

Anza Electric Coop Inc CA 4,152 33,247 6,461

Duncan Valley Elec Coop, Inc AZ 1,641 14,673 1,974

(1) The Arizona state average residential utility rate for 2010 was 10.97 cents/kwh. The California state average residential utility 

(2) The U.S. national average residential utility rate for 2010 was 11.54 cents/kwh. 

(3) For Arizona utilities, multiplied price by a 2012 cost of living index of 85%. For Anza Electric Coop, used a 2012 cost of living 

Avg Rate 

($/MWh)

Avg. Annual 

Cost Per Cust

SCR Incremental 

Cost from Model

($/MWh)

Revised Rate due 

to SCR

($/MWh)

Mohave Electric Cooperative, Inc $ 111.3 $ 1,172 $ 9.48 $ 121

Sulphur Springs Valley E C Inc $ 134.6 $ 1,193 $ 9.48 $ 144

Trico Electric Cooperative Inc $ 155.0 $ 1,642 $ 9.48 $ 164

Graham County Electric Coop Inc $ 136.2 $ 1,329 $ 9.48 $ 146

Anza Electric Coop Inc $ 194.3 $ 1,556 $ 9.48 $ 204

Duncan Valley Elec Coop, Inc $ 134.5 $ 1,203 $ 9.48 $ 144

UTILITY NAME YEAR Capital Shares

Share of Annual 

SCR Cost

($000) Annual Revenues 

$000

Mohave Electric Cooperative 2011 36% $ 8,526 $ 42,146 

Sulphur Springs Valley E C 2011 32% $ 7,549 $ 49,703 

Trico Electric Cooperative Inc 2011 21% $ 5,025 $ 58,471 

Graham County Electric Coop Inc 2011 8% $ 1,810 $ 10,433 

Anza Electric Coop Inc 2011 3% $ 595 $ 6,259 

Table 6. Class of Ownership, Number of Consumers, Sales, Revenue, and
Duncan Valley Elec Coop, Inc 2011 1% $ 310 $ 1,988 

Class A Members $ 23,815 $ 169,000

Mohave Electric Cooperative, Inc 2010 36% $ 8,526 $ 40,649

Sulphur Springs Valley E C Inc 2010 32% $ 7,549 $ 49,436

Trico Electric Cooperative Inc 2010 21% $ 5,025 $ 62,093

Graham County Electric Coop Inc 2010 8% $ 1,810 $ 10,101

Anza Electric Coop Inc 2010 3% $ 595 $ 6,461

Duncan Valley Elec Coop, Inc 2010 1% $ 310 $ 1,974

Class A Members $ 23,815 $ 170,714

UTILITY NAME YEAR

Share of Annual 

SCR Cost

($000) Annual Revenues 

$000

Mohave Electric Cooperative 2011 36% $ 8,526 $ 21,565 

Sulphur Springs Valley E C 2011 32% $ 7,549 $ 45,041 

Trico Electric Cooperative Inc 2011 21% $ 5,025 $ 26,172 

Graham County Electric Coop Inc 2011 8% $ 1,810 $ 6,496 

Anza Electric Coop Inc 2011 3% $ 595 $ 1,810 

Duncan Valley Elec Coop, Inc 2011 1% $ 310 $ 653 

Mohave Electric Cooperative, Inc 2010 36% $ 8,526 $ 21,369

Sulphur Springs Valley E C Inc 2010 32% $ 7,549 $ 42,969

Trico Electric Cooperative Inc 2010 21% $ 5,025 $ 26,440

Graham County Electric Coop Inc 2010 8% $ 1,810 $ 5,289

Anza Electric Coop Inc 2010 3% $ 595 $ 1,888

Duncan Valley Elec Coop, Inc 2010 1% $ 310 $ 676

UTILITY NAME YEAR

Share of Annual 

SCR Cost

($000) Annual Revenues 

$000

Mohave Electric Cooperative 2011 36% $ 8,526 $ 7,451 

Sulphur Springs Valley E C 2011 32% $ 7,549 $ 5,846 

Trico Electric Cooperative Inc 2011 21% $ 5,025 $ 2,296 

Graham County Electric Coop Inc 2011 8% $ 1,810 $ 3,960 

Anza Electric Coop Inc 2011 3% $ 595 $ 325 

Duncan Valley Elec Coop, Inc 2011 1% $ 310 $ 273 

Mohave Electric Cooperative, Inc 2010 36% $ 8,526 $ 7,614

Sulphur Springs Valley E C Inc 2010 32% $ 7,549 $ 6,237
Trico Electric Cooperative Inc 2010 21% $ 5,025 $ 2,127

Graham County Electric Coop Inc 2010 8% $ 1,810 $ 3,724

Anza Electric Coop Inc 2010 3% $ 595 $ 310

Duncan Valley Elec Coop, Inc 2010 1% $ 310 $ 220

UTILITY NAME YEAR

Share of Annual 

SCR Cost

($000) Annual Revenues 

$000

Mohave Electric Cooperative 2011 36% $ 8,526 $ 71,162

Sulphur Springs Valley E C 2011 32% $ 7,549 $ 100,590

Trico Electric Cooperative Inc 2011 21% $ 5,025 $ 86,938

Graham County Electric Coop Inc 2011 8% $ 1,810 $ 20,889

Anza Electric Coop Inc 2011 3% $ 595 $ 8,395

Duncan Valley Elec Coop, Inc 2011 1% $ 310 $ 2,914

Mohave Electric Cooperative, Inc 2010 36% $ 8,526 $ 69,632

Sulphur Springs Valley E C Inc 2010 32% $ 7,549 $ 98,642

Trico Electric Cooperative Inc 2010 21% $ 5,025 $ 90,660

Graham County Electric Coop Inc 2010 8% $ 1,810 $ 19,114

Anza Electric Coop Inc 2010 3% $ 595 $ 8,659

Duncan Valley Elec Coop, Inc 2010 1% $ 310 $ 2,869

$ 23,815

2019

100% Member Coverage of SCR Cost

Residential Commercial Industrial

Mohave Electric Cooperative, Inc

Sulphur Springs Valley E C Inc

Trico Electric Cooperative Inc

Graham County Electric Coop Inc

Anza Electric Coop Inc

Duncan Valley Elec Coop, Inc

Partial SCR Cost Covered by Market Sales

Residential Commercial Industrial

Mohave Electric Cooperative, Inc

Sulphur Springs Valley E C Inc

Trico Electric Cooperative Inc

2011

2011
Graham County Electric Coop Inc

Anza Electric Coop Inc

Duncan Valley Elec Coop, Inc
ighlighted columns added by F. Dóñez, EPA R9.

 Average Percentage of Percentage of Avg Price Normalized Normalized

 Retail Price State National Normalized by Cost%age of State %age of National

 (cents/kWh) Average (1) Average (2) of Living (3) Average (1, 3) Average (2, 3)

11.13 101% 96% 9.46 86% 82%

13.46 123% 117% 11.44 104% 99%

15.50 141% 134% 13.18 120% 114%

13.62 124% 118% 11.58 106% 100%

19.43 132% 168% 23.22 157% 201%

13.45 123% 117% 11.43 104% 99%

tate average residential utility rate for 2010 was 14.75 cents/kwh. 

op, used a 2012 cost of living index of 1.195 (zip code 92536, Aguanga, CA).

Before SCR After SCR

Annual MWh 

Sales Annual Revenues Annual Revenues

Inc. Sales $ Due 

to SCR

SCR in 

$/Customer per 

Year

% Increase Due 

to SCR

365,162 $ 40,649,000 $ 44,109,406 $ 3,460,406 $ 99.80 8.5%

367,327 $ 49,435,900 $ 52,916,822 $ 3,480,922 $ 83.97 7.0%

400,596 $ 62,093,000 $ 65,889,191 $ 3,796,191 $ 100.41 6.1%

74,173 $ 10,101,000 $ 10,803,890 $ 702,890 $ 92.45 7.0%

33,247 $ 6,460,900 $ 6,775,961 $ 315,061 $ 75.88 4.9%

14,673 $ 1,973,800 $ 2,112,847 $ 139,047 $ 84.73 7.0%

1,255,178 $ 170,713,600 $ 182,608,117 $ 11,894,517

$ 11,894,517

Annual Sales

Number of 

Customers

Effective Existing 

Rate

Impact to 

Existing Rate

Rate After SCR 

Impact

Rate and Cost 

Increase Due to 

SCR

MWh # cents/kWh cents/kWh cents/kWh %

 365,445 34,782 11.53 1.23 $ 12.76 10.6%

 362,952 41,311 13.69 0.90 $ 14.60 6.6%

 408,656 38,174 14.31 0.78 $ 15.09 5.4%

 77,362 7,691 13.49 1.12 $ 14.60 8.3%

 34,600 4,162 18.09 1.29 $ 19.38 7.1%

RESIDENTIAL RATE IMPACT
 15,231 1,658 13.05 1.35 $ 14.40 10.3%

 1,264,246 127,778 13.37 0.99 $ 14.36 7.4%

 365,162 34,672 11.13 1.21 $ 12.35 10.9%

 367,327 41,454 13.46 0.92 $ 14.38 6.8%

 400,596 37,806 15.50 0.81 $ 16.31 5.2%

 74,173 7,603 13.62 1.23 $ 14.85 9.1%

 33,247 4,152 19.43 1.34 $ 20.77 6.9%

 14,673 1,641 13.45 1.42 $ 14.87 10.5%

 1,255,178 127,328 13.60 1.01 $ 14.61 7.4%

Annual Sales

Number of 

Customers

Effective Existing 

Rate

Impact to 

Existing Rate

Rate After SCR 

Impact

Rate and Cost 

Increase Due to 

SCR

MWh # cents/kWh cents/kWh cents/kWh %

 214,237 3,951 $ 10.07 1.23 $ 11.29 12.2%

 412,695 9,668 $ 10.91 0.90 $ 11.82 8.3%

 215,124 2,041 $ 12.17 0.78 $ 12.94 6.4%

 49,404 1,169 $ 13.15 1.12 $ 14.27 8.5%

 9,800 289 $ 18.47 1.29 $ 19.76 7.0%

 5,511 276 $ 11.85 1.35 $ 13.20 11.4%

 217,112 3,963 $ 9.84 1.21 $ 11.06 12.3%

 383,826 9,605 $ 11.19 0.92 $ 12.12 8.2%

 195,917 2,008 $ 13.50 0.81 $ 14.31 6.0%

 39,922 680 $ 13.25 1.23 $ 14.48 9.3%

 9,556 290 $ 19.76 1.34 $ 21.10 6.8%

 5,516 280 $ 12.25 1.42 $ 13.67 11.6%

Annual Sales

Number of 

Customers

Effective Existing 

Rate

Impact to 

Existing Rate

Rate After SCR 

Impact

Rate and Cost 

Increase Due to 

SCR

MWh # cents/kWh cents/kWh cents/kWh %

 115,625 26 6.44 1.23 $ 7.67 19.0%

 60,120 4 9.72 0.90 $ 10.63 9.3%

 22,984 27 9.99 0.78 $ 10.76 7.8%

 35,248 15 11.23 1.12 $ 12.35 9.9%

 1,796 18 18.11 1.29 $ 19.40 7.1%

 2,229 63 12.24 1.35 $ 13.59 11.0%

 120,171 26 6.34 1.21 $ 7.55 19.2%

 68,135 4 9.15 0.92 $ 10.08 10.1%

COMMERCIAL RATE IMPACT

INDUSTRIAL RATE IMPACT
 22,813 26 9.32 0.81 $ 10.13 8.7%

 32,641 15 11.41 1.23 $ 12.64 10.8%

 1,612 17 19.24 1.34 $ 20.58 7.0%

 1,661 60 13.22 1.42 $ 14.64 10.7%

Annual Sales

Number of 

Customers

Effective Existing 

Rate

Impact to 

Existing Rate

Rate After SCR 

Impact

Rate and Cost 

Increase Due to 

SCR

MWh # cents/kWh cents/kWh cents/kWh %

 695,307 38,759 $ 10.23 1.23 $ 11.46 12.0%

 835,767 50,983 $ 12.04 0.90 $ 12.94 7.5%

 646,764 40,242 $ 13.44 0.78 $ 14.22 5.8%

 162,014 8,875 $ 12.89 1.12 $ 14.01 8.7%

 46,196 4,469 $ 18.17 1.29 $ 19.46 7.1%

 22,971 1,997 $ 12.68 1.35 $ 14.03 10.6%

 2,409,019

 702,445 38,661 $ 9.91 1.21 $ 11.13 12.2%

 819,288 51,063 $ 12.04 0.92 $ 12.96 7.7%

 619,326 39,840 $ 14.64 0.81 $ 15.45 5.5%

 146,736 8,298 $ 13.03 1.23 $ 14.26 9.5%

 44,415 4,459 $ 19.50 1.34 $ 20.84 6.9%

 21,850 1,981 $ 13.13 1.42 $ 14.55 10.8%

 2,354,060

 2,513,087

 104,068

4.3%

Combined Residential % Increase Commercial % Increase Industrial

Combined Residential % Increase Commercial % Increase Industrial

2019

COMBINED RATE IMPACT

2019

of National

$ 3,460.41

$ 3,480.92

$ 3,796.19

$ 702.89

$ 315.06

$ 139.05

$ 11,894.52

Annual Average 

Customer Cost 

Increase due to 

SCR

$/Year $

 $ 129 $ 4,481

 $ 79 $ 3,278

 $ 83 $ 3,175

 $ 112 $ 864

 $ 107 $ 446
 $ 124 $ 205

 $ 98 $ 12,450

 $ 128 $ 4,432

 $ 82 $ 3,385

 $ 86 $ 3,250

 $ 120 $ 915

 $ 107 $ 446

 $ 127 $ 208

 $ 100 $ 12,636

Annual Average 

Customer Cost 

Increase due to 

SCR

$/Year $

 $ 665 $ 2,627

 $ 386 $ 3,728

 $ 819 $ 1,671

 $ 472 $ 552

 $ 437 $ 126

 $ 269 $ 74

$ 8,779

 $ 665 $ 2,635

 $ 368 $ 3,537

 $ 792 $ 1,590

 $ 724 $ 492

 $ 442 $ 128

 $ 279 $ 78

$ 8,460

Annual Average 

Customer Cost 

Increase due to 

SCR

$/Year $

 $ 54,530 $ 1,418

 $ 135,763 $ 543

 $ 6,614 $ 179

 $ 26,251 $ 394

 $ 1,286 $ 23

 $ 477 $ 30

$ 2,586

 $ 56,098 $ 1,459

 $ 156,957 $ 628
 $ 7,119 $ 185

 $ 26,841 $ 403

 $ 1,271 $ 22

 $ 392 $ 24

$ 2,719

Annual Average 

Customer Cost 

Increase due to 

SCR Check Xcheck

$/Year $/Month $ $

 $ 220 $ 18.33 $ 8,526 $ 8,526

 $ 148 $ 12.34 $ 7,549 $ 7,549

 $ 125 $ 10.41 $ 5,025 $ 5,025

 $ 204 $ 16.99 $ 1,810 $ 1,810

 $ 133 $ 11.10 $ 595 $ 595

 $ 155 $ 12.92 $ 310 $ 310

$ 23,815 $ 23,815

 $ 221 $ 18.38 $ 8,526 $ 8,526

 $ 148 $ 12.32 $ 7,549 $ 7,549

 $ 126 $ 10.51 $ 5,025 $ 5,025

 $ 218 $ 18.18 $ 1,810 $ 1,810

 $ 134 $ 11.13 $ 595 $ 595

 $ 156 $ 13.02 $ 310 $ 310

$ 23,815 $ 23,815

% Increase Combined % Increase

% Increase Combined % Increase
 Average Retail Price by State and Utility: Residential Sector, 2010. Highlighted columns ad

Run Date: 11/3/2011

 Number of Sales Revenue

 Entity State Consumers (MWh) (1,000 dollars)

Mohave Electric Cooperative, Inc AZ 34,672 365,162 40,649

Sulphur Springs Valley E C Inc AZ 41,454 367,327 49,436

Trico Electric Cooperative Inc AZ 37,806 400,596 62,093

Graham County Electric Coop Inc AZ 7,603 74,173 10,101

Anza Electric Coop Inc CA 4,152 33,247 6,461

Duncan Valley Elec Coop, Inc AZ 1,641 14,673 1,974

(1) The Arizona state average residential utility rate for 2010 was 10.97 cents/kwh. The California state average residential utility 

(2) The U.S. national average residential utility rate for 2010 was 11.54 cents/kwh. 

(3) For Arizona utilities, multiplied price by a 2012 cost of living index of 85%. For Anza Electric Coop, used a 2012 cost of living 

Avg Rate 

($/MWh)

Avg. Annual 

Cost Per Cust

SCR Incremental 

Cost from Model

($/MWh)

Revised Rate due 

to SCR

($/MWh)

Mohave Electric Cooperative, Inc $ 111.3 $ 1,172 $ 9.48 $ 121

Sulphur Springs Valley E C Inc $ 134.6 $ 1,193 $ 9.48 $ 144

Trico Electric Cooperative Inc $ 155.0 $ 1,642 $ 9.48 $ 164

Graham County Electric Coop Inc $ 136.2 $ 1,329 $ 9.48 $ 146

Anza Electric Coop Inc $ 194.3 $ 1,556 $ 9.48 $ 204

Duncan Valley Elec Coop, Inc $ 134.5 $ 1,203 $ 9.48 $ 144

UTILITY NAME YEAR Capital Shares

Share of Annual 

SCR Cost

($000) Annual Revenues 

$000

Mohave Electric Cooperative 2011 36% $ 7,053 $ 42,146 

Sulphur Springs Valley E C 2011 32% $ 6,245 $ 49,703 

Trico Electric Cooperative Inc 2011 21% $ 4,157 $ 58,471 

Graham County Electric Coop Inc 2011 8% $ 1,497 $ 10,433 

Anza Electric Coop Inc 2011 3% $ 493 $ 6,259 

Table 6. Class of Ownership, Number of Consumers, Sales, Revenue, and
Duncan Valley Elec Coop, Inc 2011 1% $ 256 $ 1,988 

Class A Members $ 19,700 $ 169,000

Mohave Electric Cooperative, Inc 2010 36% $ 7,053 $ 40,649

Sulphur Springs Valley E C Inc 2010 32% $ 6,245 $ 49,436

Trico Electric Cooperative Inc 2010 21% $ 4,157 $ 62,093

Graham County Electric Coop Inc 2010 8% $ 1,497 $ 10,101

Anza Electric Coop Inc 2010 3% $ 493 $ 6,461

Duncan Valley Elec Coop, Inc 2010 1% $ 256 $ 1,974

Class A Members $ 19,700 $ 170,714

UTILITY NAME YEAR

Share of Annual 

SCR Cost

($000) Annual Revenues 

$000

Mohave Electric Cooperative 2011 36% $ 7,053 $ 21,565 

Sulphur Springs Valley E C 2011 32% $ 6,245 $ 45,041 

Trico Electric Cooperative Inc 2011 21% $ 4,157 $ 26,172 

Graham County Electric Coop Inc 2011 8% $ 1,497 $ 6,496 

Anza Electric Coop Inc 2011 3% $ 493 $ 1,810 

Duncan Valley Elec Coop, Inc 2011 1% $ 256 $ 653 

Mohave Electric Cooperative, Inc 2010 36% $ 7,053 $ 21,369

Sulphur Springs Valley E C Inc 2010 32% $ 6,245 $ 42,969

Trico Electric Cooperative Inc 2010 21% $ 4,157 $ 26,440

Graham County Electric Coop Inc 2010 8% $ 1,497 $ 5,289

Anza Electric Coop Inc 2010 3% $ 493 $ 1,888

Duncan Valley Elec Coop, Inc 2010 1% $ 256 $ 676

UTILITY NAME YEAR

Share of Annual 

SCR Cost

($000) Annual Revenues 

$000

Mohave Electric Cooperative 2011 36% $ 7,053 $ 7,451 

Sulphur Springs Valley E C 2011 32% $ 6,245 $ 5,846 

Trico Electric Cooperative Inc 2011 21% $ 4,157 $ 2,296 

Graham County Electric Coop Inc 2011 8% $ 1,497 $ 3,960 

Anza Electric Coop Inc 2011 3% $ 493 $ 325 

Duncan Valley Elec Coop, Inc 2011 1% $ 256 $ 273 

Mohave Electric Cooperative, Inc 2010 36% $ 7,053 $ 7,614

Sulphur Springs Valley E C Inc 2010 32% $ 6,245 $ 6,237
Trico Electric Cooperative Inc 2010 21% $ 4,157 $ 2,127

Graham County Electric Coop Inc 2010 8% $ 1,497 $ 3,724

Anza Electric Coop Inc 2010 3% $ 493 $ 310

Duncan Valley Elec Coop, Inc 2010 1% $ 256 $ 220

UTILITY NAME YEAR

Share of Annual 

SCR Cost

($000) Annual Revenues 

$000

Mohave Electric Cooperative 2011 36% $ 7,053 $ 71,162

Sulphur Springs Valley E C 2011 32% $ 6,245 $ 100,590

Trico Electric Cooperative Inc 2011 21% $ 4,157 $ 86,938

Graham County Electric Coop Inc 2011 8% $ 1,497 $ 20,889

Anza Electric Coop Inc 2011 3% $ 493 $ 8,395

Duncan Valley Elec Coop, Inc 2011 1% $ 256 $ 2,914

Mohave Electric Cooperative, Inc 2010 36% $ 7,053 $ 69,632

Sulphur Springs Valley E C Inc 2010 32% $ 6,245 $ 98,642

Trico Electric Cooperative Inc 2010 21% $ 4,157 $ 90,660

Graham County Electric Coop Inc 2010 8% $ 1,497 $ 19,114

Anza Electric Coop Inc 2010 3% $ 493 $ 8,659

Duncan Valley Elec Coop, Inc 2010 1% $ 256 $ 2,869

$ 19,700

2019
ighlighted columns added by F. Dóñez, EPA R9.

 Average Percentage of Percentage of Avg Price Normalized Normalized

 Retail Price State National Normalized by Cost%age of State %age of National

 (cents/kWh) Average (1) Average (2) of Living (3) Average (1, 3) Average (2, 3)

11.13 101% 96% 9.46 86% 82%

13.46 123% 117% 11.44 104% 99%

15.50 141% 134% 13.18 120% 114%

13.62 124% 118% 11.58 106% 100%

19.43 132% 168% 23.22 157% 201%

13.45 123% 117% 11.43 104% 99%

tate average residential utility rate for 2010 was 14.75 cents/kwh. 

op, used a 2012 cost of living index of 1.195 (zip code 92536, Aguanga, CA).

Before SCR After SCR

Annual MWh 

Sales Annual Revenues Annual Revenues

Inc. Sales $ Due 

to SCR

SCR in 

$/Customer per 

Year

% Increase Due 

to SCR

365,162 $ 40,649,000 $ 44,109,406 $ 3,460,406 $ 99.80 8.5%

367,327 $ 49,435,900 $ 52,916,822 $ 3,480,922 $ 83.97 7.0%

400,596 $ 62,093,000 $ 65,889,191 $ 3,796,191 $ 100.41 6.1%

74,173 $ 10,101,000 $ 10,803,890 $ 702,890 $ 92.45 7.0%

33,247 $ 6,460,900 $ 6,775,961 $ 315,061 $ 75.88 4.9%

14,673 $ 1,973,800 $ 2,112,847 $ 139,047 $ 84.73 7.0%

1,255,178 $ 170,713,600 $ 182,608,117 $ 11,894,517

$ 11,894,517

Annual Sales

Number of 

Customers

Effective Existing 

Rate

Impact to 

Existing Rate

Rate After SCR 

Impact

Rate and Cost 

Increase Due to 

SCR

MWh # cents/kWh cents/kWh cents/kWh %

 365,445 34,782 11.53 1.01 $ 12.55 8.8%

 362,952 41,311 13.69 0.75 $ 14.44 5.5%

 408,656 38,174 14.31 0.64 $ 14.95 4.5%

 77,362 7,691 13.49 0.92 $ 14.41 6.9%

 34,600 4,162 18.09 1.07 $ 19.16 5.9%

RESIDENTIAL RATE IMPACT
 15,231 1,658 13.05 1.11 14.17 8.5%

 1,264,246 127,778 13.37 0.82 14.19 6.12%

 365,162 34,672 11.13 1.00 $ 12.14 9.0%

 367,327 41,454 13.46 0.76 $ 14.22 5.7%

 400,596 37,806 15.50 0.67 $ 16.17 4.3%

 74,173 7,603 13.62 1.02 $ 14.64 7.5%

 33,247 4,152 19.43 1.11 $ 20.54 5.7%

 14,673 1,641 13.45 1.17 14.62 8.7%

 1,255,178 127,328 13.60 0.84 14.44 6.15%

Annual Sales

Number of 

Customers

Effective Existing 

Rate

Impact to 

Existing Rate

Rate After SCR 

Impact

Rate and Cost 

Increase Due to 

SCR

MWh # cents/kWh cents/kWh cents/kWh %

 214,237 3,951 $ 10.07 1.01 $ 11.08 10.1%

 412,695 9,668 $ 10.91 0.75 $ 11.66 6.8%

 215,124 2,041 $ 12.17 0.64 $ 12.81 5.3%

 49,404 1,169 $ 13.15 0.92 $ 14.07 7.0%

 9,800 289 $ 18.47 1.07 $ 19.54 5.8%

 5,511 276 $ 11.85 1.11 $ 12.96 9.4%

 217,112 3,963 $ 9.84 1.00 $ 10.85 10.2%

 383,826 9,605 $ 11.19 0.76 $ 11.96 6.8%

 195,917 2,008 $ 13.50 0.67 $ 14.17 5.0%

 39,922 680 $ 13.25 1.02 $ 14.27 7.7%

 9,556 290 $ 19.76 1.11 $ 20.86 5.6%

 5,516 280 $ 12.25 1.17 $ 13.42 9.6%

Annual Sales

Number of 

Customers

Effective Existing 

Rate

Impact to 

Existing Rate

Rate After SCR 

Impact

Rate and Cost 

Increase Due to 

SCR

MWh # cents/kWh cents/kWh cents/kWh %

 115,625 26 6.44 1.01 $ 7.46 15.7%

 60,120 4 9.72 0.75 $ 10.47 7.7%

 22,984 27 9.99 0.64 $ 10.63 6.4%

 35,248 15 11.23 0.92 $ 12.16 8.2%

 1,796 18 18.11 1.07 $ 19.17 5.9%

 2,229 63 12.24 1.11 $ 13.35 9.1%

 120,171 26 6.34 1.00 $ 7.34 15.8%

 68,135 4 9.15 0.76 $ 9.92 8.3%

COMMERCIAL RATE IMPACT

INDUSTRIAL RATE IMPACT
 22,813 26 9.32 0.67 $ 9.99 7.2%

 32,641 15 11.41 1.02 $ 12.43 8.9%

 1,612 17 19.24 1.11 $ 20.35 5.8%

 1,661 60 13.22 1.17 $ 14.39 8.9%

Annual Sales

Number of 

Customers

Effective Existing 

Rate

Impact to 

Existing Rate

Rate After SCR 

Impact

Rate and Cost 

Increase Due to 

SCR

MWh # cents/kWh cents/kWh cents/kWh %

 695,307 38,759 $ 10.23 1.01 $ 11.25 9.9%

 835,767 50,983 $ 12.04 0.75 $ 12.78 6.2%

 646,764 40,242 $ 13.44 0.64 $ 14.08 4.8%

 162,014 8,875 $ 12.89 0.92 $ 13.82 7.2%

 46,196 4,469 $ 18.17 1.07 $ 19.24 5.9%

 22,971 1,997 $ 12.68 1.11 $ 13.80 8.8%

 2,409,019

 702,445 38,661 $ 9.91 1.00 $ 10.92 10.1%

 819,288 51,063 $ 12.04 0.76 $ 12.80 6.3%

 619,326 39,840 $ 14.64 0.67 $ 15.31 4.6%

 146,736 8,298 $ 13.03 1.02 $ 14.05 7.8%

 44,415 4,459 $ 19.50 1.11 $ 20.60 5.7%

 21,850 1,981 $ 13.13 1.17 $ 14.30 8.9%

 2,354,060

 2,513,087

 104,068

4.3%

COMBINED RATE IMPACT
of National

$ 3,460.41

$ 3,480.92

$ 3,796.19

$ 702.89

$ 315.06

$ 139.05

$ 11,894.52

Annual Average 

Customer Cost 

Increase due to 

SCR

$/Year $

 $ 107 $ 3,707

 $ 66 $ 2,712

 $ 69 $ 2,626

 $ 93 $ 715

 $ 89 $ 369
 $ 102 $ 170

 $ 81 $ 10,299

 $ 106 $ 3,666

 $ 68 $ 2,800

 $ 71 $ 2,689

 $ 100 $ 757

 $ 89 $ 369

 105 $ 172

 82 $ 10,452

Annual Average 

Customer Cost 

Increase due to 

SCR

$/Year $

 $ 550 $ 2,173

 $ 319 $ 3,084

 $ 677 $ 1,383

 $ 391 $ 457

 $ 362 $ 104

 $ 223 $ 61

$ 7,262

 $ 550 $ 2,180

 $ 305 $ 2,926

 $ 655 $ 1,315

 $ 599 $ 407

 $ 365 $ 106

 $ 231 $ 65

$ 6,998

Annual Average 

Customer Cost 

Increase due to 

SCR

$/Year $

 $ 45,108 $ 1,173

 $ 112,307 $ 449

 $ 5,471 $ 148

 $ 21,716 $ 326

 $ 1,064 $ 19

 $ 394 $ 25

$ 2,140

 $ 46,406 $ 1,207

 $ 129,839 $ 519
 $ 5,889 $ 153

 $ 22,204 $ 333

 $ 1,051 $ 18

 $ 324 $ 19

$ 2,249

Annual Average 

Customer Cost 

Increase due to 

SCR Check Xcheck

$/Year $/Month $ $

 $ 182 $ 15.16 $ 7,053 $ 7,053

 $ 122 $ 10.21 $ 6,245 $ 6,245

 $ 103 $ 8.61 $ 4,157 $ 4,157

 $ 169 $ 14.06 $ 1,497 $ 1,497

 $ 110 $ 9.18 $ 493 $ 493

 $ 128 $ 10.69 $ 256 $ 256

$ 19,700 $ 19,700

 $ 182 $ 15.20 $ 7,053 $ 7,053

 $ 122 $ 10.19 $ 6,245 $ 6,245

 $ 104 $ 8.69 $ 4,157 $ 4,157

 $ 180 $ 15.04 $ 1,497 $ 1,497

 $ 110 $ 9.20 $ 493 $ 493

 $ 129 $ 10.77 $ 256 $ 256

$ 19,700 $ 19,700
E C/R

Energy Strategies

E.N. 1109

APACHE PLANT - SCR Cost Assessment Model 

Assumptions: Units Sources:

Capital Cost $ 164,962,878 $ EPA Supplied

Interest Rate 3.00% percent AEPCO Attachment 4

Depreciation Period 19.00 years Calculated

Depreciation $ 8,682,257 $ per year Calculated Straight Line

Margin 1.50% percent AEPCO Attachment 3

Taxes & Insurance $ 3,848,368 percent AEPCO Attachment 3

Escalation Rate 3.00% percent Assumed rate of inflation for O&M

Variable O&M $ 2,788,380 per year AEPCO Attachment 3

Fixed O&M $ 1,072,576 per year AEPCO Attachment 3

Plant Output 3,037,968 MWh per year AEPCO Attachment 2

Volumes Units - - - - - - - 2019 2020 2021 2022 2023 2024 2025 2026 2027 2028 2029 2030 2031

a Estimated Apache Plant Production (AEPCO Attachment 2) MWh 3,037,968 3,037,968 3,037,968 3,037,968 3,037,968 3,037,968 3,037,968 3,037,968 3,037,968 3,037,968 3,037,968 3,037,968 3,037,968

b AEPCO System Sales Estimated Sales Escalation % 1.10% MWh 2,513,087 2,540,731 2,568,679 2,596,934 2,625,500 2,654,381 2,683,579 2,713,098 2,742,942 2,773,115 2,803,619 2,834,459 2,865,638

c ST2/ST3 Production Less System Sales a-b 524,881 497,237 469,289 441,034 412,468 383,587 354,389 324,870 295,026 264,853 234,349 203,509 172,330

d Percentage of Apache generation sold to Class-A Members % 83%

SCR Incremental Cost 

1 Incremental Capital Expense (CAPEX)

2 Incremental Plant In Service

3 ST2 & ST3 SCR + LNB/OFA $000 164,963 164,963 164,963 164,963 164,963 164,963 164,963 164,963 164,963 164,963 164,963 164,963 164,963

4 Total Incremental Plant in Service $000 164,963 164,963 164,963 164,963 164,963 164,963 164,963 164,963 164,963 164,963 164,963 164,963 164,963

5 Depreciation Expense Combined Units ST2 & ST3

6 Starting Book Value $000 164,963 156,281 147,598 138,916 130,234 121,552 112,869 104,187 95,505 86,823 78,140 69,458 60,776

7 Annual Depreciation Expense $000 8,682 8,682 8,682 8,682 8,682 8,682 8,682 8,682 8,682 8,682 8,682 8,682 8,682

8 Ending Book Value $000 156,281 147,598 138,916 130,234 121,552 112,869 104,187 95,505 86,823 78,140 69,458 60,776 52,094

9 Accumulated Depreciation $000 8,682 17,365 26,047 34,729 43,411 52,094 60,776 69,458 78,140 86,823 95,505 104,187 112,869

10 Total Incremental Depreciation Expense 8,682 8,682 8,682 8,682 8,682 8,682 8,682 8,682 8,682 8,682 8,682 8,682 8,682

11 Interest Expense Applied on Starting Book Value $000 4,949 4,688 4,428 4,167 3,907 3,647 3,386 3,126 2,865 2,605 2,344 2,084 1,823

12 Return on Capital

13 Book Value $000 164,963 156,281 147,598 138,916 130,234 121,552 112,869 104,187 95,505 86,823 78,140 69,458 60,776

14 Capital Recovery $000 2,474 2,344 2,214 2,084 1,954 1,823 1,693 1,563 1,433 1,302 1,172 1,042 912

15 Total Incremental CAPEX $000 16,106 15,715 15,324 14,933 14,543 14,152 13,761 13,371 12,980 12,589 12,199 11,808 11,417

16 $/MWh 6.41 6.19 5.97 5.75 5.54 5.33 5.13 4.93 4.73 4.54 4.35 4.17 3.98

17 Incremental Operating Expense (OPEX)

18 ST2 & ST3 SCR + LNB/OFA $000 3,861 3,977 4,093 4,208 4,324 4,440 4,556 4,672 4,788 4,903 5,019 5,135 5,251

19 ST2 & ST3 SCR + LNB/OFA $000 3,848 3,848 3,848 3,848 3,848 3,848 3,848 3,848 3,848 3,848 3,848 3,848 3,848

20 Total Incremental OPEX $000 7,709 7,825 7,941 8,057 8,173 8,288 8,404 8,520 8,636 8,752 8,868 8,983 9,099

21 Total Incremental OPEX $/MWh 3.07 3.08 3.09 3.10 3.11 3.12 3.13 3.14 3.15 3.16 3.16 3.17 3.18

22 Total Incremental Expense

23 $000 $ 23,815 23,540 23,265 22,990 22,715 22,441 22,166 21,891 21,616 21,341 21,066 20,791 20,516

24 $/MWh $ 9.48 7.75 7.66 7.57 7.48 7.39 7.30 7.21 7.12 7.02 6.93 6.84 6.75

Apache Generation Station (AEPCO) - Incremental Cost Model

Scenario "A": Members pay 100% of incremental cost; none paid by off-system sales

2017/2018 Install Years

O&M

Taxes & Insurance

EPA-R09-OAR-2012-0021-DRAFT-0222.xlsx

SCR Incremental Cost Model 
LINE NO. FUNCTIONAL COSTS MOHAVE ELECTRIC 

COOPERATIVE

SULPHUR SPRINGS 

VALLEY ELECTRIC 

COOPERATIVE

1 REVENUE REQUIREMENT DEVELOPMENT

2 FIXED COSTS

3 BASE RESOURCES $7,861,087 $6,960,795

4 OTHER EXISTING RESOURCES $2,415,172 $2,138,574

5 ADDITIONAL RESOURCES $0 $0

6 SUB-TOTAL $10,276,259 $9,099,369

7 32.4%

8 O&M

9 BASE RESOURCES $16,124,106 $14,277,491

10 OTHER EXISTING RESOURCES $904,604 $801,004

11 ADDITIONAL RESOURCES $0 $0

12 SUB-TOTAL $17,028,710 $15,078,495

13 35.5%

14 ENERGY

15 BASE RESOURCES $19,626,925 $21,122,159

16 OTHER EXISTING RESOURCES $18,594 $17,678

17 ADDITIONAL RESOURCES $0 $0

18 SUB-TOTAL $19,645,519 $21,139,837

19 27.7%

20

21 TOTAL RESOURCE COSTS

22 BASE RESOURCES $43,612,118 $42,360,445

23 OTHER EXISTING RESOURCES $3,338,370 $2,957,257

24 ADDITIONAL RESOURCES $0 $0

25 TOTAL $46,950,488 $45,317,702

26 31.2%

27 RATE DEVELOPMENT

28 BILLING DETERMINANTS

29 BILLING DEMANDS 1,533,599 1,811,225

30 BASE RESOURCE KWH 678,088,000 718,868,000

31 OTHER EXISTING RESOURCES KWH 342,000 346,000

32 ADDITIONAL RESOURCES KWH 0 0

33 TOTAL KWH 678,430,000 719,214,000

34

35 MONTHY CHARGES

36 FIXED CHARGE $856,355 $758,281

37 O&M CHARGE $1,419,059 $1,256,541

38 BASE ENERGY CHARGE $0.02894 $0.02938

39 OTHER EXISTING RESOURCE ENERGY CHARGE $0.05437 $0.05109

40 ADDITIONAL RESOURCES CHARGE $0.05437 $0.05109

41 AVERAGE ENERGY CHARGE $0.02896 $0.02939

FIXED CHARGE $10,276,260 $9,099,372

O&M CHARGE $17,028,708 $15,078,492

ENERGY SUB TOTAL $19,645,519 $21,139,837

TOTAL $46,950,487 $45,317,701

Arizona Electric Power Cooperative, Inc.

DERIVATION OF REVENUE REQUIREMENTS AND RATES
Revised Revenue Require

Percentage Change In Revenu

SCR Incremental Cost Based on Resource Insight, Inc. Capital Estimate when applied to the the SC

Percentage Change In Revenu

SCR Incremental Cost Based on Resource In

Percentage Change In Revenu

First Year Incremental Cost $ 23,815 $ 23,815

35.80% 31.70%

Share of 2019 SCR Cost ($000) $ 8,526 $ 7,549

MWh Sales 678,430 719,214

Incremental Cost $ per MWh $ 12.57 $ 10.50

Mohave 35.80%

Sulphur 31.70%

Trico 21.10%

Anza 2.50%

DVEC 1.30%

GCEC 7.60%
SCHEDULE G-4

Page 1 of 2

2012 2019

TRICO ELECTRIC 

COOPERATIVE

COLLECTIVE ALL 

REQUIREMENTS 

MEMBERS

TOTAL AEPCO

$4,633,210 $2,503,251 $21,958,343

$1,423,468 $769,077 $6,746,291

$2,869,257 $94,851 $2,964,108

$8,925,935 $3,367,179 $31,668,742

$9,503,314 $5,134,492 $45,039,403

$533,160 $288,058 $2,526,826

$281,602 $75,555 $357,157

$10,318,076 $5,498,105 $47,923,386

$14,702,775 $6,766,382 $62,218,241

$4,103,012 $855,793 $4,995,077

$3,395,252 $196,707 $3,591,959

$22,201,039 $7,818,882 $70,805,277

$28,839,299 $14,404,125 $129,215,987

$6,059,639 $1,912,928 $14,268,194

$6,546,111 $367,113 $6,913,224

$41,445,049 $16,684,166 $150,397,405

2012 2019

1,466,322 510,044 5,321,190

498,876,619 231,625,173 2,127,457,792

76,467,416 15,428,608 92,584,024

101,255,000 6,523,000 107,778,000 Estimated 2019 Sales

676,599,035 253,576,781 2,327,819,816 2,513,086,574

$743,828 $280,598 $5.95

$859,840 $458,175 $9.01

$0.02947 $0.02921 $0.02925

$0.04219 $0.04795 $0.04286

$0.04219 $0.04795 $0.04286

$0.03281 $0.03083 $0.03042

2019

$8,925,936 $3,367,176 $31,668,744

$10,318,080 $5,498,100 $47,923,380

$22,201,039 $7,818,882 $70,805,277

$41,445,055 $16,684,158 $150,397,401 $154,824,000

Cooperative, Inc.

QUIREMENTS AND RATES

Estimated RR

Source: AEPCO Exhibit 

1
Revenue Requirement ($/kWh) $0.0646 $0.0616

Revenue Requirement ($/MWh) $64.61 $61.61

SCR Incremental Cost ($/MWh) $9.48 $9.48

Revised Revenue Requirement due to SCR ($/MWh) $74.09 $71.08

ercentage Change In Revenue Requirement due to SCR 14.67% 15.38%

ate when applied to the the SCR Incremental Cost Model $5.11 $5.11

ercentage Change In Revenue Requirement due to SCR 7.9% 8.3%

al Cost Based on Resource Insight, Inc. Estimate (pg. 3) $3.98 $3.98

ercentage Change In Revenue Requirement due to SCR 6.2% 6.5%

$ 23,815 $ 23,815

21.10% 2.50% Anza 

1.30% DVEC

7.60% GCEC

$ 5,025 $ 595

$ 310

$ 1,810

676,599

$ 7.43
Comparison of EPA v AEPCO re Cost Effectiveness of SCR+LNB+OFA

9/14/2012, chw

From AEPCO 

Estimates for SCR 

plus EPA notes 

Apache 2 Apache 3 Apache 3

Unit Output 204 204 204

Capacity factor 0.62 0.71 0.85

Annual Output (MWh) 1,107,965 1,268,798 1,518,984

Capital Cost of SCR+LNB+OFA 44,779,657 43,812,028 96,209,189 1

Capital Recovery Factor 0.0944 0.0944 0.0944

Annualized Rate ($/yr) 4,226,883 4,135,546 9,081,467

Fixed O&M ($/yr) 432,688 432,688 536,288 2

Variable O&M ($/kWh) 0.92 3

Variable O&M ($/yr) 1,210,656 1,532,869 1,400,929

Annual O&M ($/Year) 1,643,344 1,965,557 1,937,217 4

Total Annual Cost ($/Year) 5,869,299 6,103,078 11,018,684

Baseline Emission Rate (lb/MMBtu) 0.371 0.438 0.438

SCR Emission Rate 0.05 0.05 0.07 5

SCR Control Efficiency 87% 89% 84%

Baseline Emissions (tpy) 2,333 3,028 3,625

Heat Rate (Btu/kWh) 11,351 10,898 10,898

Heat Rate (MMBtu/hr) 2,316 2,223 2,223

Annua lC.F. 0.62 0.71 0.71

Emission Rate (lb/hr) 116 111 156

Emission Rate (tpy) 314 346 484

Emissions Removed (tpy) 2,019 2,683 3,141

Annual Cost 5,869,299 6,103,078 11,018,684

Cost-effectiveness ($/ton) 2,908 2,275 3,508

notes 

1AEPCO' sestimate is $85,666 for SCR plus EPA's estimate o f$10,543,189 for LNB+OFA 

2AEPCO'sestimateof$466,000forSCRplusEPA'sestimateof$70,288forLNB+OFA 

3AEPCO'sestimateof$1,294,600@.85cfforSCRplusEPA'sestimateof$88,816@.71cfforLNB+OFA 

4EPA'stotalsshouldactuallybe5,870,227and6,101,103percalculation 

5AEPCOestimatesarebasedonmeeting.07lb./MMBtuemissionrate 

6Footnote#94oftheTSDreferstoaspreadsheetfoundontheEPAdocketandnotescostdifferencesduetotaxandinsurance 

From Arizona Regional Haze Technical Support Document 

Dated

July 2012, data from Tables 16, 17, 18, and 19 for 

SCR+LNB+OFA

Col. 1 Col. 2

SCR Overfire Air &

Line Description Install Low NOX Burners

1 Assumptions: $ $

2 Estimated Capital & O&M Costs-SCR Retrofit:

3 Capital Cost $ 171,332,000 $ 21,086,378

4 Fixed O&M Cost $ 932,000 $ 140,576

5 Variable O&M - 85% Capacity Factor $ 2,589,200 $ 199,180

6 In Service Date 2017 2017

7

8 FixedCharges

9 TIER Requirement 1.5 1.5

10 Depreciation Rate 5.26% 5.26%

11 Interest Rate 3.00% 3.00%

12 Taxes & Insurance 2.00% 2.00%

13 Margins - Per Tier Requirement 1.50% 1.50%

14 Total Fixed Charge Rate 11.76% 11.76%

15

16 Revenue Requirements

17 Fixed Costs:

18 Depreciation $ 9,017,474 $ 1,109,809

19 Interest-FirstYear $ 5,063,945 $ 623,236

20 Taxes & Insurance $ 3,426,640 $ 421,728

21 Margin $ 2,531,973 $ 311,618

22 Subtotal $ 20,040,031 $ 2,466,391

23 O&M Costs

24 Fixed O&M $ 932,000 $ 140,576

25 Variable O&M $ 2,589,200 $ 199,180

26 Subtotal $ 3,521,200 $ 339,756

27

28 Total Revenue Requirement $ 23,561,231 $ 2,806,147

29

30 AEPCO Revenues Generated by Proposed Rates31 Test Year Ended 12/31/2012 $ 150,397,406 $ 150,397,406

32

33 Percent Increase 15.67% 1.87%

Attachment 3_AEPCO-9/18/2012

Arizona Electric Power Cooperative, Inc.

Estimated Revenue Requirements Associated With

SCR Installation on Steam Turbine Unit Nos. 2 & 3

September 18, 2012
Col. 3

Total

$

$ 192,418,378 LNB + OFA per EPA estimate

$ 1,072,576 LNB + OFA per EPA estimate

$ 2,788,380 LNB + OFA per EPA estimate *.85 /.71 c.f.

$ 10,127,283

$ 5,687,181

$ 3,848,368

$ 2,843,590

$ 22,506,422

$ 1,072,576

$ 2,788,380

$ 3,860,956

$ 26,367,378 $ 128,056

$ 150,397,406

17.53% 17.532% $ 15,520,000

10.32%

iated With

Nos. 2 & 3
A Reproduction:

Revenue Requirement

Fixed 2017 2018 2019 2020

Base Fixed $35,463 $36,788 $33,896 $34,489

EPA Fixed $39,593 $55,824 $58,091 $58,366

 Fixed Difference $4,130 $19,036 $24,195 $23,877

O&M 

Base O&M $48,227 $49,104 $49,552 $49,749

EPA O&M $48,358 $52,387 $52,989 $53,200

Difference $131 $3,284 $3,438 $3,452

$4,261 $22,320 $27,633 $27,328

5.1% 26.0% 33.1% 32.4%

Energy 2017 2018 2019 2020

Base $75,692 $69,647 $71,376 $75,297

EPA $75,692 $69,647 $71,376 $75,297

Difference $0 $0 $0 $0

$79,953 $91,967 $99,009 $102,625

2.7% 14.3% 17.8% 17.1%

2017 2018 2019 2020

Patronage Capital and Equity

2017 2018 2019 2020

Base $132,907 $141,164 $146,620 $153,571

EPA $131,266 $136,419 $142,072 $149,612

Total Change in Patronage -$1,641 -$4,745 -$4,547 -$3,959

Capital & Equity -1.2% -3.4% -3.1% -2.6%

Total Change in Long $98,312 $184,137 $176,974 $169,421

Total Change In Revenue 

Requirement 

Total Change In Demand Revenue 

Requirement 
Term Debt 52.2% 99.2% 98.3% 97.6%
2021 2022 2023 2024 2025 2026 2027

$28,664 $29,859 $30,814 $32,206 $28,888 $30,380 $32,069

$52,272 $53,313 $54,112 $55,352 $51,861 $53,208 $54,754

$23,608 $23,454 $23,298 $23,146 $22,974 $22,829 $22,685

$50,078 $51,035 $52,354 $53,951 $55,119 $56,679 $58,087

$53,647 $54,606 $55,930 $57,528 $58,716 $60,270 $61,670

$3,569 $3,571 $3,575 $3,577 $3,597 $3,591 $3,583

$27,177 $27,025 $26,874 $26,722 $26,571 $26,419 $26,268

34.5% 33.4% 32.3% 31.0% 31.6% 30.3% 29.1%

2021 2022 2023 2024 2025 2026 2027

$75,419 $75,692 $76,625 $78,002 $79,177 $80,858 $83,065

$75,419 $75,692 $76,625 $78,002 $79,177 $80,858 $83,065

$0 $0 $0 $0 $0 $0 $0

$102,596 $102,717 $103,499 $104,724 $105,747 $107,278 $109,333

17.6% 17.3% 16.8% 16.3% 16.3% 15.7% 15.2%

2021 2022 2023 2024 2025 2026 2027

2021 2022 2023 2024 2025 2026 2027

$159,992 $167,582 $176,266 $186,514 $193,528 $202,128 $212,575

$157,034 $166,059 $176,637 $189,262 $199,163 $211,188 $225,626

-$2,958 -$1,523 $371 $2,748 $5,635 $9,060 $13,051

-1.8% -0.9% 0.2% 1.5% 2.9% 4.5% 6.1%

$161,456 $153,055 $144,197 $134,855 $125,003 $114,614 $103,658

Arizona Electric Power Cooperative, Inc.

EPA Analysis
92.8% 90.7% 88.9% 87.2% 83.7% 80.1% 76.5%
Exhibit 1

2028 2029 2030 2031

$34,068 $36,111 $35,037 $38,185

$56,610 $58,511 $57,288 $60,301

$22,542 $22,400 $22,251 $22,116

$59,303 $61,108 $62,714 $64,098

$62,878 $64,672 $66,277 $67,643

$3,575 $3,565 $3,562 $3,546

$26,117 $25,965 $25,814 $25,662

28.0% 26.7% 26.4% 25.1%

2028 2029 2030 2031

$84,984 $88,081 $91,454 $92,139

$84,984 $88,081 $91,454 $92,139

$0 $0 $0 $0

$111,100 $114,046 $117,267 $117,802

14.6% 14.0% 13.6% 13.2%

2028 2029 2030 2031

2028 2029 2030 2031

$225,269 $240,343 $254,706 $272,707

$242,909 $263,203 $283,450 $308,037

$17,640 $22,860 $28,744 $35,330

7.8% 9.5% 11.3% 13.0%

$92,104 $79,920 $67,070 $53,520
73.0% 69.5% 64.3% 58.9%
AEPCO Exhibit 1 (pdf page 3) 

4% -9% 2% -20%

YEAR 1 2 3 4 5

31669 3.0%

2017 2018 2019 2020 2021

Base Fixed $ 35,463 $ 36,788 $ 33,896 $ 34,489 $ 28,664

EPA Fixed $ 39,593 $ 55,824 $ 58,091 $ 58,366 $ 52,272

 Fixed Difference $ 4,130 $ 19,036 $ 24,195 $ 23,877 $ 23,608

ESLC Caclulation $ 4,130 $ 19,036 $ 24,195 $ 23,877 $ 23,608

O&M 2% 1% 0% 1%

Base O&M $ 48,227 $ 49,104 $ 49,552 $ 49,749 $ 50,078

EPA O&M $ 48,358 $ 52,387 $ 52,989 $ 53,200 $ 53,647

Difference $ 131 $ 3,284 $ 3,438 $ 3,452 $ 3,569

ESLC Caclulation $ 131 $ 3,283 $ 3,437 $ 3,451 $ 3,569

$ 5,313

Incremental Rev Req $ 4,261 $ 22,320 $ 27,633 $ 27,328 $ 27,177

Total Change In Demand 

Revenue Requirement 5.1% 26.0% 33.1% 32.4% 34.5%

ESLC Caclulation 5.1% 26.0% 33.1% 32.4% 34.5%

Difference to AEPCO 0.0% 0.0% 0.0% 0.0% 0.0%

Difference $ 4,261 $ 22,320 $ 27,633 $ 27,329 $ 27,177

$ - $ - $ - $ (1) $ -

Energy 2017 2018 2019 2020 2021

Base $ 75,692 $ 69,647 $ 71,376 $ 75,297 $ 75,419

EPA $ 75,692 $ 69,647 $ 71,376 $ 75,297 $ 75,419

Difference $ - $ - $ - $ - $ -

$ 79,953 $ 91,967 $ 99,009 $ 102,625 $ 102,596

$ 79,953 $ 91,967 $ 99,009 $ 102,625 $ 102,596

2.7% 14.3% 17.8% 17.1% 17.6%

2017 2018 2019 2020 2021

ESLC Caclulation 2.7% 14.4% 17.8% 17.1% 17.6%

Difference 0.0% -0.1% 0.0% 0.0% 0.0%

Reduction in Base RR -2.4% -0.5% 3.0% -3.4%

Base RR $ 159,382 $ 155,539 $ 154,824 $ 159,535 $ 154,161

EPA RR $ 163,643 $ 177,858 $ 182,456 $ 186,863 $ 181,338

$ 4,261 $ 22,319 $ 27,632 $ 27,328 $ 27,177

2.0% 2.7% 14.3% 17.8% 17.1% 17.6%

2013 $ 45,039

2014 Average RR Increase between 2017 an

2015 Total RR Increase betwee 2017 and 20

2016

Total Change In Revenue 

Requirement 
2017 $ 48,227 1.65%

$ 26,367

16.95%

2011 $ 154,789

2012 $ 150,397

2013

2014

2015

2016 Avg Annual % Change

2017 $ 159,382 1.2% 5.97%

2018 $ 155,539 0.6%

2019 $ 154,824 0.4%

2020 $ 159,535 0.8%
4% 3% 4% -11% 5% 5% 6% 6%

6 7 8 9 10 11 12 13

2022 2023 2024 2025 2026 2027 2028 2029

$ 29,859 $ 30,814 $ 32,206 $ 28,888 $ 30,380 $ 32,069 $ 34,068 $ 36,111

$ 53,313 $ 54,112 $ 55,352 $ 51,861 $ 53,208 $ 54,754 $ 56,610 $ 58,511

$ 23,454 $ 23,298 $ 23,146 $ 22,974 $ 22,829 $ 22,685 $ 22,542 $ 22,400

$ 23,454 $ 23,298 $ 23,146 $ 22,973 $ 22,828 $ 22,685 $ 22,542 $ 22,400

2% 3% 3% 2% 3% 2% 2% 3%

$ 51,035 $ 52,354 $ 53,951 $ 55,119 $ 56,679 $ 58,087 $ 59,303 $ 61,108

$ 54,606 $ 55,930 $ 57,528 $ 58,716 $ 60,270 $ 61,670 $ 62,878 $ 64,672

$ 3,571 $ 3,575 $ 3,577 $ 3,597 $ 3,591 $ 3,583 $ 3,575 $ 3,565

$ 3,571 $ 3,576 $ 3,577 $ 3,597 $ 3,591 $ 3,583 $ 3,575 $ 3,564

$ 27,025 $ 26,874 $ 26,722 $ 26,571 $ 26,419 $ 26,268 $ 26,117 $ 25,965

33.4% 32.3% 31.0% 31.6% 30.3% 29.1% 28.0% 26.7%

33.4% 32.3% 31.0% 31.6% 30.3% 29.1% 28.0% 26.7%

0.0% 0.0% 0.0% 0.0% 0.0% 0.0% 0.0% 0.0%

$ 27,025 $ 26,873 $ 26,723 $ 26,571 $ 26,420 $ 26,268 $ 26,117 $ 25,965

$ - $ 1 $ (1) $ - $ (1) $ - $ - $ -

2022 2023 2024 2025 2026 2027 2028 2029

$ 75,692 $ 76,625 $ 78,002 $ 79,177 $ 80,858 $ 83,065 $ 84,984 $ 88,081

$ 75,692 $ 76,625 $ 78,002 $ 79,177 $ 80,858 $ 83,065 $ 84,984 $ 88,081

$ - $ - $ - $ - $ - $ - $ - $ -

$ 102,717 $ 103,499 $ 104,724 $ 105,748 $ 107,277 $ 109,333 $ 111,101 $ 114,046

$ 102,717 $ 103,499 $ 104,724 $ 105,747 $ 107,278 $ 109,333 $ 111,100 $ 114,046

17.3% 16.8% 16.3% 16.3% 15.7% 15.2% 14.6% 14.0%

2022 2023 2024 2025 2026 2027 2028 2029

17.3% 16.8% 16.3% 16.3% 15.7% 15.2% 14.6% 14.0%

0.0% 0.0% 0.0% 0.0% 0.0% 0.0% 0.0% 0.0%

1.6% 2.0% 2.7% -0.6% 2.9% 3.2% 3.0% 3.9%

$ 156,586 $ 159,793 $ 164,159 $ 163,184 $ 167,917 $ 173,221 $ 178,355 $ 185,300

$ 183,611 $ 186,667 $ 190,882 $ 189,754 $ 194,336 $ 199,489 $ 204,472 $ 211,264

$ 27,025 $ 26,874 $ 26,723 $ 26,570 $ 26,419 $ 26,268 $ 26,117 $ 25,964

17.3% 16.8% 16.3% 16.3% 15.7% 15.2% 14.6% 14.0%

verage RR Increase between 2017 and 2027 0.86%

otal RR Increase betwee 2017 and 2027 2.39%

-3% 8%

14 15

2030 2031

$ 35,037 $ 38,185

$ 57,288 $ 60,301

$ 22,251 $ 22,116

$ 22,251 $ 22,116

3% 2%

$ 62,714 $ 64,098

$ 66,277 $ 67,643

$ 3,562 $ 3,546

$ 3,563 $ 3,545

$ 25,814 $ 25,662

26.4% 25.1%

26.4% 25.1%

0.0% 0.0%

$ 25,813 $ 25,662

$ 1 $ -

2030 2031

$ 91,454 $ 92,139

$ 91,454 $ 92,139

$ - $ -

$ 117,268 $ 117,801

$ 117,267 $ 117,802

13.6% 13.2%

2030 2031

13.6% 13.2%

0.0% 0.0%

2.1% 2.8%

$ 189,205 $ 194,422

$ 215,019 $ 220,083

$ 25,814 $ 25,661

13.6% 13.2%
A Reproduction: 

LINE NO. FUNCTIONAL COSTS MOHAVE ELECTRIC 

COOPERATIVE

SULPHUR SPRINGS 

VALLEY ELECTRIC 

COOPERATIVE

1 REVENUE REQUIREMENT DEVELOPMENT

2 FIXED COSTS

3 BASE RESOURCES $7,861,087 $6,960,795

4 OTHER EXISTING RESOURCES $2,415,172 $2,138,574

5 ADDITIONAL RESOURCES $0 $0

6 SUB-TOTAL $10,276,259 $9,099,369

7

8 O&M

9 BASE RESOURCES $16,124,106 $14,277,491

10 OTHER EXISTING RESOURCES $904,604 $801,004

11 ADDITIONAL RESOURCES $0 $0

12 SUB-TOTAL $17,028,710 $15,078,494

13

14 ENERGY

15 BASE RESOURCES $19,626,925 $21,122,159

16 OTHER EXISTING RESOURCES $18,594 $17,678

17 ADDITIONAL RESOURCES $0 $0

18 SUB-TOTAL $19,645,519 $21,139,838

19

20

21 TOTAL RESOURCE COSTS

22 BASE RESOURCES $43,612,118 $42,360,445

23 OTHER EXISTING RESOURCES $3,338,370 $2,957,257

24 ADDITIONAL RESOURCES $0 $0

25 TOTAL $46,950,488 $45,317,701

26

27 RATE DEVELOPMENT

28 BILLING DETERMINANTS

29 BILLING DEMANDS 1,533,599 1,811,225

30 BASE RESOURCE KWH 678,088,000 718,868,000

31 OTHER EXISTING RESOURCES KWH 342,000 346,000

32 ADDITIONAL RESOURCES KWH 0 0

33 TOTAL KWH 678,430,000 719,214,000

34

35 MONTHY CHARGES

36 FIXED CHARGE $856,355 $758,281

37 O&M CHARGE $1,419,059 $1,256,541

38 BASE ENERGY CHARGE $0.02894 $0.02938

39 OTHER EXISTING RESOURCE ENERGY CHARGE $0.05437 $0.05109

40 ADDITIONAL RESOURCES CHARGE $0.05437 $0.05109

41 AVERAGE ENERGY CHARGE $0.028957 $0.029393

Arizona Electric Power Cooperative, Inc.

DERIVATION OF REVENUE REQUIREMENTS AND RATES

SCHEDULE G-4

Page 1 of 2

TRICO ELECTRIC 

COOPERATIVE

COLLECTIVE ALL 

REQUIREMENTS 

MEMBERS

TOTAL AEPCO

$4,633,210 $2,503,251 $21,958,343

$1,423,468 $769,077 $6,746,292

$2,869,257 $94,851 $2,964,108

$8,925,935 $3,367,179 $31,668,743

$9,503,314 $5,134,492 $45,039,403

$533,160 $288,058 $2,526,826

$281,602 $75,555 $357,157

$10,318,076 $5,498,105 $47,923,385

$14,702,775 $6,766,382 $62,218,242

$4,103,012 $855,793 $4,995,077

$3,395,252 $196,707 $3,591,959

$22,201,039 $7,818,882 $70,805,278

$28,839,299 $14,404,125 $129,215,987

$6,059,639 $1,912,928 $14,268,194

$6,546,111 $367,113 $6,913,224

$41,445,050 $16,684,166 $150,397,406

1,466,322 510,044 5,321,190

498,876,619 231,625,173 2,127,457,792

76,467,416 15,428,608 92,584,024

101,255,000 6,523,000 107,778,000

676,599,035 253,576,781 2,327,819,816

$743,828 $280,598 $5.951

$859,840 $458,175 $9.006

$0.02947 $0.02921 $0.02925

$0.04219 $0.04795 $0.04286

$0.04219 $0.04795 $0.04286

$0.032813 $0.030834 $0.030417

ENTS AND RATES


164.9 $ 82,481,439

$ 164,962,878

$ 71,938,250

$ 35,969,125

$ 74,260,000

$ 2,321,750
per unit

Total