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.. ------ CHUGACH-- August 26, 2020 Regulatory Commission of Alaska 701 West Eighth Avenue, Suite 300 Anchorage, Alaska 99501-3469 POWERING ALASKA'S FUTURE ELECTRONICALLY FILED WITH RCA Subject: Tariff Advice No. 493-8; Beluga River Unit Contributed Capital Surcharge and Rebate Amounts in Compliance with Order No. U-18-102(44)/U-19-020(39)/U-19-021(39) Dear Commissioners: On May 28, 2020, the Regulatory Commission of Alaska ("Commission") issued Order No. U-18- 102(44)/U-19-020(39)/U-19-021(39) ("Order 39"), approving Chugach Electric Association, Inc.'s ("Chugach") acquisition of the Municipality of Anchorage ("MOA'') d/b/a Municipal Light & Power ("ML&P"), subject to conditions. One condition is that Chugach file proposed tariff sheets governing the collection of funds from customers served under Certificate of Public Convenience and Necessity ("CPCN") No. 8 through a surcharge and the disbursement of those funds to customers receiving service under CPCN No. 121 through a rebate. This adjustment mechanism reconciles historical Beluga River Unit Contributed Capital ("Contributed Capital") contributions and future ratepayer benefit between the customers served under CPCN Nos. 8 and 121. 1 Specifically, Ordering Paragraph No. 32 states: Chugach Electric Association, Inc. shall submit, as a tariff advice filing, proposed tariff sheets governing collection of surcharges from ratepayers in the Certificate of Public Convenience and Necessity No. 8 service area and disbursement ofrebates to ratepayers in the Certificate of Public Convenience and Necessity No. 121 service area in compliance with the decision in this order to require Chugach Electric Association, Inc. to return Beluga River Unit contributed capital to ratepayers in the Certificate of Public of Public Convenience and Necessity No. 121 service area. In compliance with Order 39, Chugach hereby submits for Commission review and approval, the surcharge and rebate mechanism included on attached Tariff Sheet No. 96 titled, "Beluga River Unit Contributed Capital Surcharge and Rebate." In this filing and in Chugach's operating tariff, the service area under CPCN No. 121 is designated as the North District and the service area under CPCN No. 8 is designated as the South District. Chugach submits this tariff filing in compliance with the Alaska Public Utilities Regulatory Act and 3 AAC 48.200 - 3 AAC 48.430. Chugach submits the following tariff sheet: Although the format of the necessary adjustments involves a North District Rebate and South District Surcharge it is important to note that the net result will be beneficial to both North and South District customers. North District customers will be reimbursed for their capital contribution to ownership of the Beluga gas supplies while South District customers will gain access to lower cost Beluga gas supplies.

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Page 1: POWERING ALASKA'S FUTURE - Chugach Electric

.. ~~ ------CHUGACH--August 26, 2020

Regulatory Commission of Alaska 701 West Eighth Avenue, Suite 300 Anchorage, Alaska 99501-3469

POWERING ALASKA'S FUTURE

ELECTRONICALLY FILED WITH RCA

Subject: Tariff Advice No. 493-8; Beluga River Unit Contributed Capital Surcharge and Rebate Amounts in Compliance with Order No. U-18-102(44)/U-19-020(39)/U-19-021(39)

Dear Commissioners:

On May 28, 2020, the Regulatory Commission of Alaska ("Commission") issued Order No. U-18-102(44)/U-19-020(39)/U-19-021(39) ("Order 39"), approving Chugach Electric Association, Inc.'s ("Chugach") acquisition of the Municipality of Anchorage ("MOA'') d/b/a Municipal Light & Power ("ML&P"), subject to conditions. One condition is that Chugach file proposed tariff sheets governing the collection of funds from customers served under Certificate of Public Convenience and Necessity ("CPCN") No. 8 through a surcharge and the disbursement of those funds to customers receiving service under CPCN No. 121 through a rebate. This adjustment mechanism reconciles historical Beluga River Unit Contributed Capital ("Contributed Capital") contributions and future ratepayer benefit between the customers served under CPCN Nos. 8 and 121. 1 Specifically, Ordering Paragraph No. 32 states:

Chugach Electric Association, Inc. shall submit, as a tariff advice filing, proposed tariff sheets governing collection of surcharges from ratepayers in the Certificate of Public Convenience and Necessity No. 8 service area and disbursement ofrebates to ratepayers in the Certificate of Public Convenience and Necessity No. 121 service area in compliance with the decision in this order to require Chugach Electric Association, Inc. to return Beluga River Unit contributed capital to ratepayers in the Certificate of Public of Public Convenience and Necessity No. 121 service area.

In compliance with Order 39, Chugach hereby submits for Commission review and approval, the surcharge and rebate mechanism included on attached Tariff Sheet No. 96 titled, "Beluga River Unit Contributed Capital Surcharge and Rebate." In this filing and in Chugach's operating tariff, the service area under CPCN No. 121 is designated as the North District and the service area under CPCN No. 8 is designated as the South District. Chugach submits this tariff filing in compliance with the Alaska Public Utilities Regulatory Act and 3 AAC 48.200 - 3 AAC 48.430. Chugach submits the following tariff sheet:

Although the format of the necessary adjustments involves a North District Rebate and South District Surcharge it is important to note that the net result will be beneficial to both North and South District customers. North District customers will be reimbursed for their capital contribution to ownership of the Beluga gas supplies while South District customers will gain access to lower cost Beluga gas supplies.

Page 2: POWERING ALASKA'S FUTURE - Chugach Electric

Commissioners Tariff Advice No. 493-8

TARIFF SHEET NUMBER ORIGINAL REVISED

96 27th Revision

CANCELS SHEET NUMBER ORIGINAL REVISED

96 26th Revision

August 26, 2020 Page 2 of 4

SCHEDULE OR RULE NUMBER

Contributed Capital

Chugach requests Commission approval of the methodology only, used on Tariff Sheet No. 96 which includes the methodology proposed for the calculation of the surcharge and rebate for customers that receive electric service in the South and North Districts, respectively. Sheet No. 96 has been marked "For Approval of Methodology Only" for clarity. Provided the methodology is approved in this filing, Chugach will include Tariff Sheet No. 96 and the contents of Exhibits 1 through 3 as part of its mid-November 2020 compliance filing for rates effective January 1, 2020 but calculated on the basis of projected first quarter 2021 kWh sales. The surcharge and rebate will be separate line items on each South District and North District customer bill and applied on a per kWh basis. The surcharge will also be assessed to the City of Seward.

The Contributed Capital tariff does not conflict with any other schedule or rate and does not otherwise adversely impact customers on the Chugach system. The BRU Contributed Capital rebate impacts 31,225 retail metered locations in the North District and the surcharge impacts approximately 82,000 retail and wholesale metered locations in the South District. Individual customer bill impacts are dependent upon BRU gas production levels in relation to the surcharge and rebate amounts. On a preliminary basis, Chugach is projecting annual revenues of approximately $325 to $350 million for calendar-year 2021.2

Over the 10-year period in which the rebate and surcharge will be in effect, the Contributed Capital tariff is estimated to result in reductions to North District customers of $136 million and an increase in ratepayers to the South District of the same amount.3 Overall, this adjustment recognizes the system unification of the BRU gas field and BRU gas transfer price. The unification of the BRU gas transfer price is addressed in Tariff Advice No. 494-8, filed with the Commission on August 26, 2020.

Chugach will include the attached tariff sheet and exhibits in each future quarterly fuel and purchased power rate adjustment filings until the full amount of the surcharge is recovered from South District customers and the full amount of the rebate has been issued to North District customers. The surcharge and rebates will not be included in the fuel and purchased power rates and will instead, be stand-alone line items on each customer bill. Because the methodology is based on projected energy sales and a separate surcharge and separate rebate, separate balancing accounts have been created for South District and North District customers, as explained below.

2 The projection is preliminary and subject to change as Chugach is developing 2021 forecasts.

3 Present value over a 10-year period at 5 percent interest. In nominal dollars, the amount is $176,129,122.

Page 3: POWERING ALASKA'S FUTURE - Chugach Electric

Commissioners Tariff Advice No. 493-8

Beluga River Unit Contributed Capital: Surcharge and Rebate Structure

August 26, 2020 Page 3 of 4

The formula used to calculate the surcharge to South District ratepayers and the rebate to North District ratepayers is based on Order 39 (pages 102 and 103) and is summarized below:

South District: Surcharge= (AA/ 4 + B) I SQS

Where: AA = Annual amortization amount B = Previous end of quarter balancing account balance SQS = Projected quarterly South District kWh sales

North District: Rebate= (AA/ 4 + B) I NQS

Where: AA = Annual amortization amount B = Previous end of quarter balancing account balance NQS = Projected quarterly North District kWh sales

Chugach has inserted a negative sign in the calculation of the North District rebate to show that the rate is a credit on the customer bill, as shown on Exhibit 1.

This filing requests approval of the methodology used to develop the Beluga River Unit Contributed Capital Surcharge and Rebate and does not propose rates that will actually be used for billing customers. For this filing, Chugach has used its projected third quarter 2020 North District and South District kWh sales for determination of the surcharge and rebate amounts, which provides for a surcharge of $0.01684 per kWh to South District members and a rebate of ($0.02004) per kWh to North District members.

Exhibit 1 provides the calculations of the surcharge and rebate amounts for the South District and North District based on third quarter projected sales. Also attached is a North District and South District amortization and balancing account schedule to be used with each quarterly fuel and purchased power rate adjustment filings. Exhibit 2 identifies the balancing account and the remaining balance of the $136 million surcharge amounts for the South District, and Exhibit 3 presents the balancing account and amounts to be received (in total, $136 million) for the rebate to the North District.

Description of Exhibits

Exhibit 1: This exhibit presents an example of the quarterly calculation of the BRU Contributed Capital surcharge and rebate rates.

Exhibit 2: This exhibit presents the proposed methodology for tracking and reporting the balancing account for the South District BRU Contributed Capital surcharge targeted amount to be paid, and the amounts collected from South District members.

Exhibit 3: This exhibit presents the proposed methodology for tracking and reporting the balancing account for the North District BRU Contributed Capital rebate targeted amount to be disbursed, and the amounts issued to North District members.

Page 4: POWERING ALASKA'S FUTURE - Chugach Electric

Commissioners Tariff Advice No. 493-8

Tariff Sheet Changes

The following tariff sheet reflects the proposed change contained in this filing.

August 26, 2020 Page 4 of 4

Tariff Sheet No. 96: This tariff sheet was previously "Reserved for Future Use." New text has been added to establish the Beluga River Unit Contributed Capital surcharge for South District members and the Beluga River Unit Contributed Capital rebate for North District members. Chugach has also included language to identify the balancing account and the overall applicability of the tariff.

Questions regarding this filing should be directed to Arthur Miller, Executive Vice President Regulatory and External Affairs, at 907-762-4758 or [email protected].

Sincerely,

CHUGACH LE5!RIC A SOCIATION, INC.

-ftt~b ~ .-Thibert

Chief Executive Officer lee_ [email protected]

Attachments

cc: Cory Borgeson, Interim Utility Manager, City of Seward John Bums, President and Chief Executive Officer, Golden Valley Electric Association, Inc. Anna Henderson, General Manager, Anchorage Municipal Light & Power Anthony Izzo, Chief Executive Officer, Matanuska Electric Association, Inc. Brad Janorschke, General Manager, Homer Electric Association, Inc. John Sims, President, ENSTAR Natural Gas Company Jon S. Dawson, for Providence Health & Services Robert J. Friedman for Federal Executive Agencies Curtis Thayer, Alaska Energy Authority Lew Craig, Regulatory Affairs & Public Advocacy Section (RAP A) Ethan Schutt, Alaska Native Tribal Consortium

Page 5: POWERING ALASKA'S FUTURE - Chugach Electric

Tariff Advice No. 493-8 Issued by: Effective: Chugach Electric Association, Inc.

P.O. Box 196300 Anchorage, Alaska 99519-6300

RCA No. 8 27th Revision Sheet No. 96 Canceling

26th Revision Sheet No. 96

Chugach Electric Association, Inc.

Beluga River Unit Contributed Capital Surcharge and Rebate

The Beluga River Unit Contributed Capital (BRU Contributed Capital) adjustment process governs the collection of funds through a surcharge assessed to South District customers and the disbursement of funds to North District customers through a rebate over a targeted 120-month period, beginning January 1, 2021.1 The BRU Contributed Capital adjustment mechanism reconciles historical contributions and future ratepayer benefit between customers served in the South District and North District in the amount of $176,129,122, or $136,002,239 on a present value basis (10 years, 5% interest rate).

BRU Contributed Capital surcharge and rebate amounts are adjusted quarterly consistent with the timing of Chugach’s fuel and purchased power rate adjustment filings. Because the surcharge and rebate amounts are determined by projected sales and incorporate balancing accounts, the actual life of the BRU Contributed Capital adjustment process may be shorter or longer than the 120-month period.

A. Applicability The surcharge is applicable to all South District members and the rebate is applicable to all North District members.

B. BRU Contributed Capital Balancing Accounts Chugach shall maintain a BRU Contributed Capital surcharge balancing account for South District members and a BRU Contributed Capital rebate balancing account for North District members. The South District balancing account starts with a debit balance of $176,129,122 reflecting amounts due from the South District members. The North District balancing account starts with a credit balance of $176,129,122 reflecting the amount to be rebated. Each account will be reduced monthly by the amount of the surcharge collected and rebate returned to the members.

C. Surcharge and Rebate Amounts Customer billings will be adjusted on a quarterly basis to reflect changes in surcharge and rebate amounts.

South District BRU Contributed Capital Surcharge: $0.01684 per kWh

North District BRU Contributed Capital Rebate: ($0.02004) per kWh

N

1 See Order No. U-18-102(44)/U-19-020(39)/U-19-021(39) issued by the Regulatory Commission of Alaska on May 28, 2020. N

For Approval of Methodology Only

Os CHUGACH·

POWERING ALASKA'S FllTllRE

Page 6: POWERING ALASKA'S FUTURE - Chugach Electric

EXHIBIT 1

Page 7: POWERING ALASKA'S FUTURE - Chugach Electric

Chugach Electric Association, Inc.Anchorage, Alaska

Tariff Advice No. 493-8Beluga River Unit Contributed Capital

Calculation of South District Surcharge and North District Rebate

South District BRU Contributed Capital Surcharge (per kWh):

((AA / 4)+B) $4,403,228SQS 261,531,247

Where: AA = the annual amortization amount = $4,403,228 B = Previous end of quarter balancing account balance = $0 SQS = Projected quarterly sales for the South District = 261,561,247

North District BRU Contributed Capital Rebate (per kWh):

((- AA / 4)+B) ($4,403,228)NQS 219,701,090

Where: AA = the annual amortization amount = $4,403,228 B = Previous end of quarter balancing account balance = $0 NQS = Projected quarterly sales for the North District = 219,701,090

= = $0.01684

= = ($0.02004)

Exhibits 1 - 3 BRU Contributed Capital Balancing Account.xlsxExhibit 1

Page 1 of 1

Page 8: POWERING ALASKA'S FUTURE - Chugach Electric

EXHIBIT 2

Page 9: POWERING ALASKA'S FUTURE - Chugach Electric

Chugach Electric Association, Inc. Anchorage, Alaska

Tariff Advice No. 493-8 Beluga River Unit Contributed Capital: South District

Surcharge Amortization Schedule and Balancing Account

Interest Rate: 5.00% Term: 10 years Annual Amortization: $17,612,912

South District BRU Surcharge Surcharge to be Monthly Surcharge Targets Annual Collected from South Monthly Balancing Surcharge to be

Month Collected (BOP) 1 Period Amount Subtotals District Customers Over/Under Account Collected (EOP) 1

Present Value $136,002,239

Jan-21 $176,129,122 1 $1,467,743 ($1,467,743) $0 $0 $174,661,379Feb-21 $174,661,379 2 $1,467,743 $0 $0 $0 $173,193,636Mar-21 $173,193,636 3 $1,467,743 $0 $0 $0 $171,725,894Apr-21 $171,725,894 4 $1,467,743 $0 $0 $0 $170,258,151

May-21 $170,258,151 5 $1,467,743 $0 $0 $0 $168,790,408Jun-21 $168,790,408 6 $1,467,743 $0 $0 $0 $167,322,666Jul-21 $167,322,666 7 $1,467,743 $0 $0 $0 $165,854,923

Aug-21 $165,854,923 8 $1,467,743 $0 $0 $0 $164,387,180Sep-21 $164,387,180 9 $1,467,743 $0 $0 $0 $162,919,437Oct-21 $162,919,437 10 $1,467,743 $0 $0 $0 $161,451,695

Nov-21 $161,451,695 11 $1,467,743 $0 $0 $0 $159,983,952Dec-21 $159,983,952 12 $1,467,743 $17,612,912 $0 $0 $0 $158,516,209Jan-22 $158,516,209 13 $1,467,743 $0 $0 $0 $157,048,467Feb-22 $157,048,467 14 $1,467,743 $0 $0 $0 $155,580,724Mar-22 $155,580,724 15 $1,467,743 $0 $0 $0 $154,112,981Apr-22 $154,112,981 16 $1,467,743 $0 $0 $0 $152,645,239

May-22 $152,645,239 17 $1,467,743 $0 $0 $0 $151,177,496Jun-22 $151,177,496 18 $1,467,743 $0 $0 $0 $149,709,753Jul-22 $149,709,753 19 $1,467,743 $0 $0 $0 $148,242,011

Aug-22 $148,242,011 20 $1,467,743 $0 $0 $0 $146,774,268Sep-22 $146,774,268 21 $1,467,743 $0 $0 $0 $145,306,525Oct-22 $145,306,525 22 $1,467,743 $0 $0 $0 $143,838,783

Nov-22 $143,838,783 23 $1,467,743 $0 $0 $0 $142,371,040Dec-22 $142,371,040 24 $1,467,743 $17,612,912 $0 $0 $0 $140,903,297Jan-23 $140,903,297 25 $1,467,743 $0 $0 $0 $139,435,555

Exhibits 1 - 3 BRU Contributed Capital Balancing Account.xlsxExhibit 2

Page 1 of 5

Page 10: POWERING ALASKA'S FUTURE - Chugach Electric

Chugach Electric Association, Inc. Anchorage, Alaska

Tariff Advice No. 493-8 Beluga River Unit Contributed Capital: South District

Surcharge Amortization Schedule and Balancing Account

Interest Rate: 5.00% Term: 10 years Annual Amortization: $17,612,912

South District BRU Surcharge Surcharge to be Monthly Surcharge Targets Annual Collected from South Monthly Balancing Surcharge to be

Month Collected (BOP) 1 Period Amount Subtotals District Customers Over/Under Account Collected (EOP) 1

Feb-23 $139,435,555 26 $1,467,743 $0 $0 $0 $137,967,812Mar-23 $137,967,812 27 $1,467,743 $0 $0 $0 $136,500,069Apr-23 $136,500,069 28 $1,467,743 $0 $0 $0 $135,032,327

May-23 $135,032,327 29 $1,467,743 $0 $0 $0 $133,564,584Jun-23 $133,564,584 30 $1,467,743 $0 $0 $0 $132,096,841Jul-23 $132,096,841 31 $1,467,743 $0 $0 $0 $130,629,099

Aug-23 $130,629,099 32 $1,467,743 $0 $0 $0 $129,161,356Sep-23 $129,161,356 33 $1,467,743 $0 $0 $0 $127,693,613Oct-23 $127,693,613 34 $1,467,743 $0 $0 $0 $126,225,870

Nov-23 $126,225,870 35 $1,467,743 $0 $0 $0 $124,758,128Dec-23 $124,758,128 36 $1,467,743 $17,612,912 $0 $0 $0 $123,290,385Jan-24 $123,290,385 37 $1,467,743 $0 $0 $0 $121,822,642Feb-24 $121,822,642 38 $1,467,743 $0 $0 $0 $120,354,900Mar-24 $120,354,900 39 $1,467,743 $0 $0 $0 $118,887,157Apr-24 $118,887,157 40 $1,467,743 $0 $0 $0 $117,419,414

May-24 $117,419,414 41 $1,467,743 $0 $0 $0 $115,951,672Jun-24 $115,951,672 42 $1,467,743 $0 $0 $0 $114,483,929Jul-24 $114,483,929 43 $1,467,743 $0 $0 $0 $113,016,186

Aug-24 $113,016,186 44 $1,467,743 $0 $0 $0 $111,548,444Sep-24 $111,548,444 45 $1,467,743 $0 $0 $0 $110,080,701Oct-24 $110,080,701 46 $1,467,743 $0 $0 $0 $108,612,958

Nov-24 $108,612,958 47 $1,467,743 $0 $0 $0 $107,145,216Dec-24 $107,145,216 48 $1,467,743 $17,612,912 $0 $0 $0 $105,677,473Jan-25 $105,677,473 49 $1,467,743 $0 $0 $0 $104,209,730Feb-25 $104,209,730 50 $1,467,743 $0 $0 $0 $102,741,988Mar-25 $102,741,988 51 $1,467,743 $0 $0 $0 $101,274,245

Exhibits 1 - 3 BRU Contributed Capital Balancing Account.xlsxExhibit 2

Page 2 of 5

Page 11: POWERING ALASKA'S FUTURE - Chugach Electric

Chugach Electric Association, Inc. Anchorage, Alaska

Tariff Advice No. 493-8 Beluga River Unit Contributed Capital: South District

Surcharge Amortization Schedule and Balancing Account

Interest Rate: 5.00% Term: 10 years Annual Amortization: $17,612,912

South District BRU Surcharge Surcharge to be Monthly Surcharge Targets Annual Collected from South Monthly Balancing Surcharge to be

Month Collected (BOP) 1 Period Amount Subtotals District Customers Over/Under Account Collected (EOP) 1

Apr-25 $101,274,245 52 $1,467,743 $0 $0 $0 $99,806,502May-25 $99,806,502 53 $1,467,743 $0 $0 $0 $98,338,760Jun-25 $98,338,760 54 $1,467,743 $0 $0 $0 $96,871,017Jul-25 $96,871,017 55 $1,467,743 $0 $0 $0 $95,403,274

Aug-25 $95,403,274 56 $1,467,743 $0 $0 $0 $93,935,532Sep-25 $93,935,532 57 $1,467,743 $0 $0 $0 $92,467,789Oct-25 $92,467,789 58 $1,467,743 $0 $0 $0 $91,000,046

Nov-25 $91,000,046 59 $1,467,743 $0 $0 $0 $89,532,303Dec-25 $89,532,303 60 $1,467,743 $17,612,912 $0 $0 $0 $88,064,561Jan-26 $88,064,561 61 $1,467,743 $0 $0 $0 $86,596,818Feb-26 $86,596,818 62 $1,467,743 $0 $0 $0 $85,129,075Mar-26 $85,129,075 63 $1,467,743 $0 $0 $0 $83,661,333Apr-26 $83,661,333 64 $1,467,743 $0 $0 $0 $82,193,590

May-26 $82,193,590 65 $1,467,743 $0 $0 $0 $80,725,847Jun-26 $80,725,847 66 $1,467,743 $0 $0 $0 $79,258,105Jul-26 $79,258,105 67 $1,467,743 $0 $0 $0 $77,790,362

Aug-26 $77,790,362 68 $1,467,743 $0 $0 $0 $76,322,619Sep-26 $76,322,619 69 $1,467,743 $0 $0 $0 $74,854,877Oct-26 $74,854,877 70 $1,467,743 $0 $0 $0 $73,387,134

Nov-26 $73,387,134 71 $1,467,743 $0 $0 $0 $71,919,391Dec-26 $71,919,391 72 $1,467,743 $17,612,912 $0 $0 $0 $70,451,649Jan-27 $70,451,649 73 $1,467,743 $0 $0 $0 $68,983,906Feb-27 $68,983,906 74 $1,467,743 $0 $0 $0 $67,516,163Mar-27 $67,516,163 75 $1,467,743 $0 $0 $0 $66,048,421Apr-27 $66,048,421 76 $1,467,743 $0 $0 $0 $64,580,678

May-27 $64,580,678 77 $1,467,743 $0 $0 $0 $63,112,935

Exhibits 1 - 3 BRU Contributed Capital Balancing Account.xlsxExhibit 2

Page 3 of 5

Page 12: POWERING ALASKA'S FUTURE - Chugach Electric

Chugach Electric Association, Inc. Anchorage, Alaska

Tariff Advice No. 493-8 Beluga River Unit Contributed Capital: South District

Surcharge Amortization Schedule and Balancing Account

Interest Rate: 5.00% Term: 10 years Annual Amortization: $17,612,912

South District BRU Surcharge Surcharge to be Monthly Surcharge Targets Annual Collected from South Monthly Balancing Surcharge to be

Month Collected (BOP) 1 Period Amount Subtotals District Customers Over/Under Account Collected (EOP) 1

Jun-27 $63,112,935 78 $1,467,743 $0 $0 $0 $61,645,193Jul-27 $61,645,193 79 $1,467,743 $0 $0 $0 $60,177,450

Aug-27 $60,177,450 80 $1,467,743 $0 $0 $0 $58,709,707Sep-27 $58,709,707 81 $1,467,743 $0 $0 $0 $57,241,965Oct-27 $57,241,965 82 $1,467,743 $0 $0 $0 $55,774,222

Nov-27 $55,774,222 83 $1,467,743 $0 $0 $0 $54,306,479Dec-27 $54,306,479 84 $1,467,743 $17,612,912 $0 $0 $0 $52,838,736Jan-28 $52,838,736 85 $1,467,743 $0 $0 $0 $51,370,994Feb-28 $51,370,994 86 $1,467,743 $0 $0 $0 $49,903,251Mar-28 $49,903,251 87 $1,467,743 $0 $0 $0 $48,435,508Apr-28 $48,435,508 88 $1,467,743 $0 $0 $0 $46,967,766

May-28 $46,967,766 89 $1,467,743 $0 $0 $0 $45,500,023Jun-28 $45,500,023 90 $1,467,743 $0 $0 $0 $44,032,280Jul-28 $44,032,280 91 $1,467,743 $0 $0 $0 $42,564,538

Aug-28 $42,564,538 92 $1,467,743 $0 $0 $0 $41,096,795Sep-28 $41,096,795 93 $1,467,743 $0 $0 $0 $39,629,052Oct-28 $39,629,052 94 $1,467,743 $0 $0 $0 $38,161,310

Nov-28 $38,161,310 95 $1,467,743 $0 $0 $0 $36,693,567Dec-28 $36,693,567 96 $1,467,743 $17,612,912 $0 $0 $0 $35,225,824Jan-29 $35,225,824 97 $1,467,743 $0 $0 $0 $33,758,082Feb-29 $33,758,082 98 $1,467,743 $0 $0 $0 $32,290,339Mar-29 $32,290,339 99 $1,467,743 $0 $0 $0 $30,822,596Apr-29 $30,822,596 100 $1,467,743 $0 $0 $0 $29,354,854

May-29 $29,354,854 101 $1,467,743 $0 $0 $0 $27,887,111Jun-29 $27,887,111 102 $1,467,743 $0 $0 $0 $26,419,368Jul-29 $26,419,368 103 $1,467,743 $0 $0 $0 $24,951,626

Exhibits 1 - 3 BRU Contributed Capital Balancing Account.xlsxExhibit 2

Page 4 of 5

Page 13: POWERING ALASKA'S FUTURE - Chugach Electric

Chugach Electric Association, Inc. Anchorage, Alaska

Tariff Advice No. 493-8 Beluga River Unit Contributed Capital: South District

Surcharge Amortization Schedule and Balancing Account

Interest Rate: 5.00% Term: 10 years Annual Amortization: $17,612,912

South District BRU Surcharge Surcharge to be Monthly Surcharge Targets Annual Collected from South Monthly Balancing Surcharge to be

Month Collected (BOP) 1 Period Amount Subtotals District Customers Over/Under Account Collected (EOP) 1

Aug-29 $24,951,626 104 $1,467,743 $0 $0 $0 $23,483,883Sep-29 $23,483,883 105 $1,467,743 $0 $0 $0 $22,016,140Oct-29 $22,016,140 106 $1,467,743 $0 $0 $0 $20,548,398

Nov-29 $20,548,398 107 $1,467,743 $0 $0 $0 $19,080,655Dec-29 $19,080,655 108 $1,467,743 $17,612,912 $0 $0 $0 $17,612,912Jan-30 $17,612,912 109 $1,467,743 $0 $0 $0 $16,145,169Feb-30 $16,145,169 110 $1,467,743 $0 $0 $0 $14,677,427Mar-30 $14,677,427 111 $1,467,743 $0 $0 $0 $13,209,684Apr-30 $13,209,684 112 $1,467,743 $0 $0 $0 $11,741,941

May-30 $11,741,941 113 $1,467,743 $0 $0 $0 $10,274,199Jun-30 $10,274,199 114 $1,467,743 $0 $0 $0 $8,806,456Jul-30 $8,806,456 115 $1,467,743 $0 $0 $0 $7,338,713

Aug-30 $7,338,713 116 $1,467,743 $0 $0 $0 $5,870,971Sep-30 $5,870,971 117 $1,467,743 $0 $0 $0 $4,403,228Oct-30 $4,403,228 118 $1,467,743 $0 $0 $0 $2,935,485

Nov-30 $2,935,485 119 $1,467,743 $0 $0 $0 $1,467,743Dec-30 $1,467,743 120 $1,467,743 $17,612,912 $0 $0 $0 $0

1 Balancing Account No. 1863015100-2101

Exhibits 1 - 3 BRU Contributed Capital Balancing Account.xlsxExhibit 2

Page 5 of 5

Page 14: POWERING ALASKA'S FUTURE - Chugach Electric

EXHIBIT 3

Page 15: POWERING ALASKA'S FUTURE - Chugach Electric

Chugach Electric Association, Inc.Anchorage, Alaska

Tariff Advice No. 493-8Beluga River Unit Contributed Capital: North District Rebate Amortization Schedule and Balancing Account

Interest Rate: 5.00% Term: 10 years Annual Amortization: $17,612,912

North District BRU Rebates Rebate to be Monthly Rebate Target Annual Issued to North Monthly Balancing Rebate to be

Month Issued (BOP) 1 Period Amount Subtotals District Customers Over/Under Account Issued (EOP) 1

Present Value $136,002,239

Jan-21 $176,129,122 1 $1,467,743 $0 $0 $0 $174,661,379Feb-21 $174,661,379 2 $1,467,743 $0 $0 $0 $173,193,636Mar-21 $173,193,636 3 $1,467,743 $0 $0 $0 $171,725,894Apr-21 $171,725,894 4 $1,467,743 $0 $0 $0 $170,258,151

May-21 $170,258,151 5 $1,467,743 $0 $0 $0 $168,790,408Jun-21 $168,790,408 6 $1,467,743 $0 $0 $0 $167,322,666Jul-21 $167,322,666 7 $1,467,743 $0 $0 $0 $165,854,923

Aug-21 $165,854,923 8 $1,467,743 $0 $0 $0 $164,387,180Sep-21 $164,387,180 9 $1,467,743 $0 $0 $0 $162,919,437Oct-21 $162,919,437 10 $1,467,743 $0 $0 $0 $161,451,695

Nov-21 $161,451,695 11 $1,467,743 $0 $0 $0 $159,983,952Dec-21 $159,983,952 12 $1,467,743 $17,612,912 $0 $0 $0 $158,516,209Jan-22 $158,516,209 13 $1,467,743 $0 $0 $0 $157,048,467Feb-22 $157,048,467 14 $1,467,743 $0 $0 $0 $155,580,724Mar-22 $155,580,724 15 $1,467,743 $0 $0 $0 $154,112,981Apr-22 $154,112,981 16 $1,467,743 $0 $0 $0 $152,645,239

May-22 $152,645,239 17 $1,467,743 $0 $0 $0 $151,177,496Jun-22 $151,177,496 18 $1,467,743 $0 $0 $0 $149,709,753Jul-22 $149,709,753 19 $1,467,743 $0 $0 $0 $148,242,011

Aug-22 $148,242,011 20 $1,467,743 $0 $0 $0 $146,774,268Sep-22 $146,774,268 21 $1,467,743 $0 $0 $0 $145,306,525Oct-22 $145,306,525 22 $1,467,743 $0 $0 $0 $143,838,783

Nov-22 $143,838,783 23 $1,467,743 $0 $0 $0 $142,371,040Dec-22 $142,371,040 24 $1,467,743 $17,612,912 $0 $0 $0 $140,903,297Jan-23 $140,903,297 25 $1,467,743 $0 $0 $0 $139,435,555

Exhibits 1 - 3 BRU Contributed Capital Balancing Account.xlsxExhibit 3

Page 1 of 5

Page 16: POWERING ALASKA'S FUTURE - Chugach Electric

Chugach Electric Association, Inc.Anchorage, Alaska

Tariff Advice No. 493-8Beluga River Unit Contributed Capital: North District Rebate Amortization Schedule and Balancing Account

Interest Rate: 5.00% Term: 10 years Annual Amortization: $17,612,912

North District BRU Rebates Rebate to be Monthly Rebate Target Annual Issued to North Monthly Balancing Rebate to be

Month Issued (BOP) 1 Period Amount Subtotals District Customers Over/Under Account Issued (EOP) 1

Feb-23 $139,435,555 26 $1,467,743 $0 $0 $0 $137,967,812Mar-23 $137,967,812 27 $1,467,743 $0 $0 $0 $136,500,069Apr-23 $136,500,069 28 $1,467,743 $0 $0 $0 $135,032,327

May-23 $135,032,327 29 $1,467,743 $0 $0 $0 $133,564,584Jun-23 $133,564,584 30 $1,467,743 $0 $0 $0 $132,096,841Jul-23 $132,096,841 31 $1,467,743 $0 $0 $0 $130,629,099

Aug-23 $130,629,099 32 $1,467,743 $0 $0 $0 $129,161,356Sep-23 $129,161,356 33 $1,467,743 $0 $0 $0 $127,693,613Oct-23 $127,693,613 34 $1,467,743 $0 $0 $0 $126,225,870

Nov-23 $126,225,870 35 $1,467,743 $0 $0 $0 $124,758,128Dec-23 $124,758,128 36 $1,467,743 $17,612,912 $0 $0 $0 $123,290,385Jan-24 $123,290,385 37 $1,467,743 $0 $0 $0 $121,822,642Feb-24 $121,822,642 38 $1,467,743 $0 $0 $0 $120,354,900Mar-24 $120,354,900 39 $1,467,743 $0 $0 $0 $118,887,157Apr-24 $118,887,157 40 $1,467,743 $0 $0 $0 $117,419,414

May-24 $117,419,414 41 $1,467,743 $0 $0 $0 $115,951,672Jun-24 $115,951,672 42 $1,467,743 $0 $0 $0 $114,483,929Jul-24 $114,483,929 43 $1,467,743 $0 $0 $0 $113,016,186

Aug-24 $113,016,186 44 $1,467,743 $0 $0 $0 $111,548,444Sep-24 $111,548,444 45 $1,467,743 $0 $0 $0 $110,080,701Oct-24 $110,080,701 46 $1,467,743 $0 $0 $0 $108,612,958

Nov-24 $108,612,958 47 $1,467,743 $0 $0 $0 $107,145,216Dec-24 $107,145,216 48 $1,467,743 $17,612,912 $0 $0 $0 $105,677,473Jan-25 $105,677,473 49 $1,467,743 $0 $0 $0 $104,209,730Feb-25 $104,209,730 50 $1,467,743 $0 $0 $0 $102,741,988Mar-25 $102,741,988 51 $1,467,743 $0 $0 $0 $101,274,245Apr-25 $101,274,245 52 $1,467,743 $0 $0 $0 $99,806,502

Exhibits 1 - 3 BRU Contributed Capital Balancing Account.xlsxExhibit 3

Page 2 of 5

Page 17: POWERING ALASKA'S FUTURE - Chugach Electric

Chugach Electric Association, Inc.Anchorage, Alaska

Tariff Advice No. 493-8Beluga River Unit Contributed Capital: North District Rebate Amortization Schedule and Balancing Account

Interest Rate: 5.00% Term: 10 years Annual Amortization: $17,612,912

North District BRU Rebates Rebate to be Monthly Rebate Target Annual Issued to North Monthly Balancing Rebate to be

Month Issued (BOP) 1 Period Amount Subtotals District Customers Over/Under Account Issued (EOP) 1

May-25 $99,806,502 53 $1,467,743 $0 $0 $0 $98,338,760Jun-25 $98,338,760 54 $1,467,743 $0 $0 $0 $96,871,017Jul-25 $96,871,017 55 $1,467,743 $0 $0 $0 $95,403,274

Aug-25 $95,403,274 56 $1,467,743 $0 $0 $0 $93,935,532Sep-25 $93,935,532 57 $1,467,743 $0 $0 $0 $92,467,789Oct-25 $92,467,789 58 $1,467,743 $0 $0 $0 $91,000,046

Nov-25 $91,000,046 59 $1,467,743 $0 $0 $0 $89,532,303Dec-25 $89,532,303 60 $1,467,743 $17,612,912 $0 $0 $0 $88,064,561Jan-26 $88,064,561 61 $1,467,743 $0 $0 $0 $86,596,818Feb-26 $86,596,818 62 $1,467,743 $0 $0 $0 $85,129,075Mar-26 $85,129,075 63 $1,467,743 $0 $0 $0 $83,661,333Apr-26 $83,661,333 64 $1,467,743 $0 $0 $0 $82,193,590

May-26 $82,193,590 65 $1,467,743 $0 $0 $0 $80,725,847Jun-26 $80,725,847 66 $1,467,743 $0 $0 $0 $79,258,105Jul-26 $79,258,105 67 $1,467,743 $0 $0 $0 $77,790,362

Aug-26 $77,790,362 68 $1,467,743 $0 $0 $0 $76,322,619Sep-26 $76,322,619 69 $1,467,743 $0 $0 $0 $74,854,877Oct-26 $74,854,877 70 $1,467,743 $0 $0 $0 $73,387,134

Nov-26 $73,387,134 71 $1,467,743 $0 $0 $0 $71,919,391Dec-26 $71,919,391 72 $1,467,743 $17,612,912 $0 $0 $0 $70,451,649Jan-27 $70,451,649 73 $1,467,743 $0 $0 $0 $68,983,906Feb-27 $68,983,906 74 $1,467,743 $0 $0 $0 $67,516,163Mar-27 $67,516,163 75 $1,467,743 $0 $0 $0 $66,048,421Apr-27 $66,048,421 76 $1,467,743 $0 $0 $0 $64,580,678

May-27 $64,580,678 77 $1,467,743 $0 $0 $0 $63,112,935Jun-27 $63,112,935 78 $1,467,743 $0 $0 $0 $61,645,193Jul-27 $61,645,193 79 $1,467,743 $0 $0 $0 $60,177,450

Exhibits 1 - 3 BRU Contributed Capital Balancing Account.xlsxExhibit 3

Page 3 of 5

Page 18: POWERING ALASKA'S FUTURE - Chugach Electric

Chugach Electric Association, Inc.Anchorage, Alaska

Tariff Advice No. 493-8Beluga River Unit Contributed Capital: North District Rebate Amortization Schedule and Balancing Account

Interest Rate: 5.00% Term: 10 years Annual Amortization: $17,612,912

North District BRU Rebates Rebate to be Monthly Rebate Target Annual Issued to North Monthly Balancing Rebate to be

Month Issued (BOP) 1 Period Amount Subtotals District Customers Over/Under Account Issued (EOP) 1

Aug-27 $60,177,450 80 $1,467,743 $0 $0 $0 $58,709,707Sep-27 $58,709,707 81 $1,467,743 $0 $0 $0 $57,241,965Oct-27 $57,241,965 82 $1,467,743 $0 $0 $0 $55,774,222

Nov-27 $55,774,222 83 $1,467,743 $0 $0 $0 $54,306,479Dec-27 $54,306,479 84 $1,467,743 $17,612,912 $0 $0 $0 $52,838,736Jan-28 $52,838,736 85 $1,467,743 $0 $0 $0 $51,370,994Feb-28 $51,370,994 86 $1,467,743 $0 $0 $0 $49,903,251Mar-28 $49,903,251 87 $1,467,743 $0 $0 $0 $48,435,508Apr-28 $48,435,508 88 $1,467,743 $0 $0 $0 $46,967,766

May-28 $46,967,766 89 $1,467,743 $0 $0 $0 $45,500,023Jun-28 $45,500,023 90 $1,467,743 $0 $0 $0 $44,032,280Jul-28 $44,032,280 91 $1,467,743 $0 $0 $0 $42,564,538

Aug-28 $42,564,538 92 $1,467,743 $0 $0 $0 $41,096,795Sep-28 $41,096,795 93 $1,467,743 $0 $0 $0 $39,629,052Oct-28 $39,629,052 94 $1,467,743 $0 $0 $0 $38,161,310

Nov-28 $38,161,310 95 $1,467,743 $0 $0 $0 $36,693,567Dec-28 $36,693,567 96 $1,467,743 $17,612,912 $0 $0 $0 $35,225,824Jan-29 $35,225,824 97 $1,467,743 $0 $0 $0 $33,758,082Feb-29 $33,758,082 98 $1,467,743 $0 $0 $0 $32,290,339Mar-29 $32,290,339 99 $1,467,743 $0 $0 $0 $30,822,596Apr-29 $30,822,596 100 $1,467,743 $0 $0 $0 $29,354,854

May-29 $29,354,854 101 $1,467,743 $0 $0 $0 $27,887,111Jun-29 $27,887,111 102 $1,467,743 $0 $0 $0 $26,419,368Jul-29 $26,419,368 103 $1,467,743 $0 $0 $0 $24,951,626

Aug-29 $24,951,626 104 $1,467,743 $0 $0 $0 $23,483,883Sep-29 $23,483,883 105 $1,467,743 $0 $0 $0 $22,016,140Oct-29 $22,016,140 106 $1,467,743 $0 $0 $0 $20,548,398

Exhibits 1 - 3 BRU Contributed Capital Balancing Account.xlsxExhibit 3

Page 4 of 5

Page 19: POWERING ALASKA'S FUTURE - Chugach Electric

Chugach Electric Association, Inc.Anchorage, Alaska

Tariff Advice No. 493-8Beluga River Unit Contributed Capital: North District Rebate Amortization Schedule and Balancing Account

Interest Rate: 5.00% Term: 10 years Annual Amortization: $17,612,912

North District BRU Rebates Rebate to be Monthly Rebate Target Annual Issued to North Monthly Balancing Rebate to be

Month Issued (BOP) 1 Period Amount Subtotals District Customers Over/Under Account Issued (EOP) 1

Nov-29 $20,548,398 107 $1,467,743 $0 $0 $0 $19,080,655Dec-29 $19,080,655 108 $1,467,743 $17,612,912 $0 $0 $0 $17,612,912Jan-30 $17,612,912 109 $1,467,743 $0 $0 $0 $16,145,169Feb-30 $16,145,169 110 $1,467,743 $0 $0 $0 $14,677,427Mar-30 $14,677,427 111 $1,467,743 $0 $0 $0 $13,209,684Apr-30 $13,209,684 112 $1,467,743 $0 $0 $0 $11,741,941

May-30 $11,741,941 113 $1,467,743 $0 $0 $0 $10,274,199Jun-30 $10,274,199 114 $1,467,743 $0 $0 $0 $8,806,456Jul-30 $8,806,456 115 $1,467,743 $0 $0 $0 $7,338,713

Aug-30 $7,338,713 116 $1,467,743 $0 $0 $0 $5,870,971Sep-30 $5,870,971 117 $1,467,743 $0 $0 $0 $4,403,228Oct-30 $4,403,228 118 $1,467,743 $0 $0 $0 $2,935,485

Nov-30 $2,935,485 119 $1,467,743 $0 $0 $0 $1,467,743Dec-30 $1,467,743 120 $1,467,743 $17,612,912 $0 $0 $0 $0

1 Balancing Account No. 1863015000-2101

Exhibits 1 - 3 BRU Contributed Capital Balancing Account.xlsxExhibit 3

Page 5 of 5