NYISO Tariffs --> Open Access Transmission Tariff (OATT) --> 14 OATT Attachment H - Annual Transmission Revenue Requireme --> 14.2-14.2.1 OATT Att H Attachment 1 to Attachment H

 

 

 

 

 

 

14.2Attachment 1 to Attachment H (Niagara Mohawk Power Corporation) and

NYPA Transmission Adjustment Charge

14.2.1Attachment 1 to Attachment H: Schedules (Niagara Mohawk Power

Corporation)

 

Table of Contents

 

Historical Transmission Revenue RequirementSchedule 1

Forecasted Transmission Revenue RequirementSchedule 2

Annual True-up with Interest CalculationSchedule 3

Year to Year ComparisonSchedule 4

AllocatorsSchedule 5

Transmission Investment Base (Part 1 of 2)Schedule 6 Page 1 of 2

Transmission Investment Base (Part 1 of 2)Schedule 6 Page 2 of 2

Transmission Investment Base (Part 2 of 2)Schedule 7

Capital StructureSchedule 8

ExpensesSchedule 9

OtherSchedule 10

System Dispatch Expense - Component CCCSchedule 11

Billing Units - Component BUSchedule 12

Forecasted Accumulated Deferred Income Taxes (FADIT)Schedule 13

(Excess)/Deficient ADIT WorksheetSchedule 14

Effective Date: 1/27/2020 - Docket #: ER20-2051-003 - Page 1


NYISO Tariffs --> Open Access Transmission Tariff (OATT) --> 14 OATT Attachment H - Annual Transmission Revenue Requireme --> 14.2-14.2.1 OATT Att H Attachment 1 to Attachment H

 

 

 

Niagara Mohawk Power CorporationAttachment 1

Calculation of RR Pursuant to Attachment H, Section 14.1.9.2YearSchedule  1

 

Calculation of RR

14.1.9.2The RR component shall equal the (a) Historical Transmission Revenue Requirement plus (b) the Forecasted Transmission Revenue Requirement plus (c) the Annual

True-Up, determined in accordance with the formula below.

 

Historical Transmission Revenue Requirement (Historical TRR)

 

Line No.

 

1Historical Transmission Revenue Requirement (Historical TRR)

2

314.1.9.2 (a)Historical TRR shall equal the sum of NMPC’s (A) Return and Associated Income Taxes, (B) Transmission Related Depreciation Expense, (C)

4Transmission Related Real Estate Tax Expense, (D) Transmission Related Amortization of Investment Tax Credits,

5(E) Transmission Operation and Maintenance Expense, (F) Transmission Related Administrative and General Expenses, (G) Transmission

Related Payroll Tax Expense,  (H) Amortization of Transmission Regulatory Assets and Liabilities, (I) Billing Adjustments, and (J) Transmission Related Bad Debt Expense

6less

7(K) Revenue Credits, and (L) Transmission Rents, all determined for the most recently ended calendar year as of the beginning of the update year.

8Reference

9Section:0

10Return and Associated Income Taxes(A)#DIV/0!Schedule 8, Line  64

11Transmission-Related Depreciation Expense(B)#DIV/0!Schedule 9, Line 6, column 5

12Transmission-Related Real Estate Taxes(C)#DIV/0!Schedule 9, Line 12, column 5

13Transmission - Related Investment Tax Credit(D)#DIV/0!Schedule 9, Line 16, column 5 times minus 1

14Transmission Operation & Maintenance Expense(E)$0Schedule 9, Line 23, column 5

15Transmission Related Administrative & General Expense(F)#DIV/0!Schedule 9, Line 38, column 5

16Transmission Related Payroll Tax Expense(G)$0Schedule 9, Line 44, column 5

17Amortization of Transmission Regulatory Assets and Liabilities(H)#DIV/0!Schedule 9, Line 46, column 5

18Sub-Total (sum of Lines 10 - Line 17)#DIV/0!

19

20Billing Adjustments(I)$0Schedule 10, Line 1

21Bad Debt Expenses(J)$0Schedule 10, Line 4

22Revenue Credits(K)$0Schedule 10, Line 7

23Transmission Rents(L)$0Schedule 10, Line 14

24

25Total Historical Transmission Revenue Requirement (Sum of Line 18 - Line 23)#DIV/0!

Effective Date: 1/27/2020 - Docket #: ER20-2051-003 - Page 1


NYISO Tariffs --> Open Access Transmission Tariff (OATT) --> 14 OATT Attachment H - Annual Transmission Revenue Requireme --> 14.2-14.2.1 OATT Att H Attachment 1 to Attachment H

 

 

 

Niagara Mohawk Power CorporationAttachment 1

Forecasted Transmission Revenue RequirementSchedule  2

Attachment H, Section 14.1.9.2

Year

Shading denotes an input

Line No.

114.1.9.2 (b)FORECASTED TRANSMISSION REVENUE REQUIREMENTS

2Forecasted TRR shall equal (1) the Forecasted Transmission Plant Additions (FTPA)  multiplied by the Adjusted Annual (AFTRRF), plus (2) Forecasted ADIT Adjustment (FADITA),  plus (3) the Mid-Year

Trend

3Adjustment (MYTA), less (4) Transmission Support Payments (TSP), plus (5) the Tax Rate Adjustment (TRA), less (6) Other Billing Adjustments (OBA) as shown in the following formula:

4

5Forecasted TRR = (FTPA * AFTRRF)  + FADITA + MYTA - TSP + TRA - OBA

6

7PeriodReferenceSource

8

9

10(1)FORECASTED TRANSMISSION PLANT ADDITIONS (FTPA)$0Workpaper 8, Section I, Line 16

11Adjusted Annual Transmission Revenue Requirement Factor#DIV/0!Line 78

(AFTRRF)

12Sub-Total (Lines 10*11)#DIV/0!

13

14(2)FORECASTED ADIT ADJUSTMENT (FADITA)

15The Forecasted ADIT Adjustment (FADITA)  shall equal the

Forecasted ADIT (FADIT)

16multiplied by the Cost of Capital Rate, where:

17

18Forecasted ADIT(FADIT) shall equal the projected change in

Accumulated Deferred Income Taxes from the most recently

19concluded calendar year related to accelerated depreciation and

associated with Transmission Plant for the

20Forecasted Period calculated in accordance with Treasury regulation

Section 1.167(1)-1(h)(6).

21

22Forecasted ADIT (FADIT)#DIV/0!Schedule 13, Line 24

23Cost of Capital Rate#DIV/0!Schedule 8, Line 62

24Forecasted ADIT Adjustment (FADITA)#DIV/0!Line 22 * Line 23

25

26(3)MID YEAR TREND ADJUSTMENT (MYTA)

27The Mid-Year Trend Adjustment shall be the difference, whether

positive or negative, between

28(i) the Historical TRR Component (E) excluding Transmission Support

Payments, based on actual data for the first three months of the Forecast Period,

Effective Date: 1/27/2020 - Docket #: ER20-2051-003 - Page 1


NYISO Tariffs --> Open Access Transmission Tariff (OATT) --> 14 OATT Attachment H - Annual Transmission Revenue Requireme --> 14.2-14.2.1 OATT Att H Attachment 1 to Attachment H

 

 

 

29and (ii) the Historical TRR Component (E) excluding Transmission

Support Payments, based on data for the first three months of the

year prior to the Forecast Period.

30

31Plus Mid-Year Trend Adjustment  (MYTA)$0Workpaper 9,  line 32, variance

column

32

33(4)TRANSMISSION SUPPORT PAYMENTS (TSP)

34Less Impact of Transmission Support Payments on Historical$0Worpaper 9A

Transmission Revenue Requirement

35Less: Other Billing Adjustments - Dunkirk Settlement ER14-543-000$0Schedule 10

36

37(5)TAX RATE ADJUSTMENT  (TRA)

38The Tax Rate Adjustment shall be the amount, if any, required to

adjust Historical TRR Component (A) for any change in the Federal

Income Tax Rate

39and/or the State Income Tax Rate that takes effect during the first

five months of the Forecast Period.

40

41Tax Rate Adjustment (TRA)$0

42

43(6)OTHER BILLING ADJUSTMENTS (OBA)

44Other Billing Adjustments shall equal any amounts related to the

HTRR calculation that are

45required to be adjusted in the current year's FTRR to remove the

impact on the Update Year

46

47Other Billing Adjustments (OBA)$0Schedule 10, Line 1

48

49Forecasted Transmission Revenue Requirement (Line 12 + Line 24#DIV/0!

+ Line 31 - Line 34 - Line 35 + Line 41-Line 47)

50

5114.1.9.2(c)ANNUAL FORECAST TRANSMISSION REVENUE REQUIREMENT FACTOR

52

53Adjusted Annual Forecast Transmission Revenue Requirement Factor (AFTRRF) shall equal the difference between the Annual Forecast

54Transmission Revenue Requirement Factor (FTRRF) and the quotient of (1) Cost of Capital Rate multiplied by the Transmission Related

55Accumulated Deferred Taxes less Accumulated Deferred Inv. Tax Cr (255) for the most recently concluded calendar year,

56and (ii) the year-end Transmission Plant in Service determined in accordance with Section 14.1.9.2 (a), component (A)1(a).

57

58The Annual Forecast Transmission Revenue Requirement Factor (Annual FTRRF) shall equal the sum of Historical TRR components (A) through (C),

59divided by the year-end balance of Transmission Plant in Service determined in accordance with Section 14.1.9.2 (a), component (A)1(a).

60

61Deriviation of Annual Forecast Transmission Revenue Requirement

Factor (FTRRF)

62Investment Return and Income Taxes(A)#DIV/0!Schedule 1,  Line 10

Effective Date: 1/27/2020 - Docket #: ER20-2051-003 - Page 1


NYISO Tariffs --> Open Access Transmission Tariff (OATT) --> 14 OATT Attachment H - Annual Transmission Revenue Requireme --> 14.2-14.2.1 OATT Att H Attachment 1 to Attachment H

 

 

 

63Depreciation Expense(B)#DIV/0!Schedule 1,  Line 11

64Property Tax Expense(C)#DIV/0!Schedule 1,  Line 12

65Total Expenses (Lines 62 thru 64)#DIV/0!

66Transmission Plant(a)#DIV/0!Schedule 6,   Page 1, Line 12

67Annual Forecast Transmission Revenue Requirement Factor#DIV/0!

(Lines 65/ Line 66)

68

69Adjustment to FTRRF to reflect removal of ADIT that is subject to

normalization

70Transmission Related ADIT Balance at year-end#DIV/0!Schedule 7, Line 6, Column L

71Less: Accumulated Deferred Inv. Tax Cr (255)#DIV/0!Schedule 7, Line 5, Column L

72Net Transmission ADIT Balance at year-end#DIV/0!Line 70 - Line 71

73Cost of Capital Rate#DIV/0!Schedule 8, Line 62

74Total Return and Income Taxes Associated with ADIT Balance at#DIV/0!Line 72 * Line 73

year-end

75

76Annual Forecast Transmission Revenue Requirement Factor (FTRRF)#DIV/0!Line 67

77Less: Incremental Annual Forecast Transmission Revenue#DIV/0!Line 74 / Line 66

Requirement Factor Adjustment for ADIT

78Adjusted Annual Forecast Transmission Revenue Requirement Factor#DIV/0!Line 76 - Line 77

(AFTRRF)

Effective Date: 1/27/2020 - Docket #: ER20-2051-003 - Page 1


NYISO Tariffs --> Open Access Transmission Tariff (OATT) --> 14 OATT Attachment H - Annual Transmission Revenue Requireme --> 14.2-14.2.1 OATT Att H Attachment 1 to Attachment H

 

 

 

Niagara Mohawk Power CorporationAttachment 1

Annual True-up (ATU)Schedule 3

Attachment H Section 14.1.9.2 (c)

Line No.YearSource:

1

214.1.9.2(d)The Annual True-Up (ATU) shall equal (1) the difference between the Actual Transmission Revenue Requirement and the Prior Year

3Transmission Revenue Requirement, plus (2) the difference between the Actual Scheduling, System Control and Dispatch costs

4and Prior Year Scheduling, System Control and Dispatch costs, plus  (3) the difference between the Prior Year Billing Units and the Actual Year

5Billing Units multiplied by the Prior Year Unit Rate, plus (4) Interest on the net differences.

6

7(1)Revenue Requirement (RR) of rate effective July 1 of prior year$0Schedule 4,  Line 1, Col (d)

8Less:  Annual True-up (ATU) from rate effective July 1 of prior year$0Schedule 4,  Line 1, Col (c)

9Prior Year Transmission Revenue Requirement$0Line 7 - Line 8

10

11Actual Transmission Revenue Requirement#DIV/0!Schedule 4, Line 2, Col (a)

12Difference#DIV/0!Line 11 - Line 9

13

14(2)Prior Year Scheduling, System Control and Dispatch costs (CCC)$0Schedule 4,  Line 1, Col (e)

15Actual Scheduling, System Control and Dispatch costs (CCC)$0Schedule 4,  Line 2, Col (e)

16Difference$0Line 15 - Line 14

17

18(3)Prior Year Billing Units (MWH)$0Schedule 4, Line 1, Col (f)

19Actual Billing Units-Schedule 4, Line 2, Col (f)

20Difference-Line 18 - Line 19

21Prior Year Indicative Rate#DIV/0!Schedule 4, Line 1, Col (g)

22Billing Unit True-Up#DIV/0!Line 20 * Line 21

23

24Total Annual True-Up before Interest#DIV/0!(Line 12 + Line 16 + Line 22)

25

26(4)Interest#DIV/0!Line 57, Column 9

27

28Annual True-up RR Component#DIV/0!(Line 24 + Line 26)

29

 

30Interest Calculation per 18 CFR § 35.19a

31(1)(2)(3)(4)(5)(6)(7)(8)(9)

32QuartersAnnualAccrued PrinMonthlyDaysAccrued PrinAccrued

33Interest& Int. @ Beg(Over)/UnderinPeriod& Int. @ EndInt. @ End

34Rate (a)Of PeriodRecoveryPeriod (b)DaysMultiplierOf PeriodOf Period

35

363rd QTR092921.0000$0$0

37July0.00%#DIV/0!31921.0000#DIV/0!#DIV/0!

38August0.00%#DIV/0!31611.0000#DIV/0!#DIV/0!

39September0.00%#DIV/0!30301.0000#DIV/0!#DIV/0!

40

Effective Date: 1/27/2020 - Docket #: ER20-2051-003 - Page 1


NYISO Tariffs --> Open Access Transmission Tariff (OATT) --> 14 OATT Attachment H - Annual Transmission Revenue Requireme --> 14.2-14.2.1 OATT Att H Attachment 1 to Attachment H

 

 

 

414th QTR#DIV/0!92921.0000#DIV/0!#DIV/0!

42October0.00%#DIV/0!31921.0000#DIV/0!#DIV/0!

43November0.00%#DIV/0!30611.0000#DIV/0!#DIV/0!

44December0.00%#DIV/0!31311.0000#DIV/0!#DIV/0!

45

461st QTR#DIV/0!91911.0000#DIV/0!#DIV/0!

47January0.00%#DIV/0!31911.0000#DIV/0!#DIV/0!

48February0.00%#DIV/0!28601.0000#DIV/0!#DIV/0!

49March0.00%#DIV/0!31311.0000#DIV/0!#DIV/0!

50

512nd QTR#DIV/0!91911.0000#DIV/0!#DIV/0!

52April0.00%#DIV/0!30911.0000#DIV/0!#DIV/0!

53May0.00%#DIV/0!31611.0000#DIV/0!#DIV/0!

54June0.00%#DIV/0!30301.0000#DIV/0!#DIV/0!

55
56

57Total (over)/under Recovery#DIV/0!(line 24)#DIV/0!#DIV/0!

 

(a) Interest rates shall be the interest rates as reported on the FERC Website http://www.ferc.gov/legal/acct-matts/interest-rates.asp

(b) For leap years use 29 days in the month of February

Effective Date: 1/27/2020 - Docket #: ER20-2051-003 - Page 1


NYISO Tariffs --> Open Access Transmission Tariff (OATT) --> 14 OATT Attachment H - Annual Transmission Revenue Requireme --> 14.2-14.2.1 OATT Att H Attachment 1 to Attachment H

 

 

Attachment 1
Schedule 4

 

Niagara Mohawk Power Corporation

 

Wholesale TSC Calculation Information

 

 

(a)(b)(c)(d)(e)(f)(g)

 

Historical

TransmissionForecastedScheduling

RevenueTransmissionRevenueSystem ControlAnnual Billing

RequirementRevenueRequirementand DispatchUnits (BU)

Line No.(Historical TRR)RequirementAnnual True Up(RR)Costs (CCC)MWhRate $/MWh (*)

1Prior Year Rates Effective ________------#DIV/0!

Current Year Rates Effective July 1,

2_______#DIV/0!#DIV/0!#DIV/0!--#DIV/0!

 

3Increase/(Decrease)#DIV/0!

4Percentage Increase/(Decrease)#DIV/0!

 

1.)Information directly from Niagara Mohawk Prior Year Informational Filing

2.)

(a)Schedule 1,  Line 24

(b)Schedule 2,  Line 49

(c)Schedule 3, Line 28

(d)Attachment H, Section 14.1.9.2 The RR Component shall equal Col (a) Historical Transmission Revenue Requirement plus Col (b) the Forecasted Transmission Revenue Requirement which shall

exclude Transmission Support Payments, plus Col (c) the Annual True-Up plus Col (c) the Annual True-Up

(e)Schedule 11, Line 21 - Annual Scheduling, System Control and Dispatch Costs. (i.e. the Transmission Component of control center costs) as recorded in FERC Account 561 and its associated sub-

accounts from the prior calendar year excluding any NY Independent System Operator (NYISO) system control and load dispatch expenses already recovered under Schedule 1 of the NYISO

Tariff.

(f) Schedule 12, line 17 - Billing Units shall be the total Niagara Mohawk load as reported to the NYISO for the calendar year prior to the Forecast Period, including the load for customers taking

service under Niagara Mohawk's TSC rate.  The total Niagara Mohawk load will be adjusted to exclude (i) load associated with wholesale transactions being revenue credited through the WR,
CRR, SR, ECR, and Reserved components of Attachment H of the NYISO TSC rate including Niagara Mohawk's external sales, load associated with grandfathered OATT agreements, and any load
related to pre-OATT grandfathered agreements; (ii) load associated with transactions being revenue credited under Historical TRR Component J; and (iii) load associated with netted station
service.

(g)(Col (d) + Col (e)) / Col (f)

 

 

(*) The rate column represents the unit rate prior to adjustments; the actual rate will be determined pursuant to the applicable TSC formula rate.

Effective Date: 1/27/2020 - Docket #: ER20-2051-003 - Page 1


NYISO Tariffs --> Open Access Transmission Tariff (OATT) --> 14 OATT Attachment H - Annual Transmission Revenue Requireme --> 14.2-14.2.1 OATT Att H Attachment 1 to Attachment H

 

 

 

 

 

Niagara Mohawk Power CorporationAttachment 1

Allocation Factors - As calculated pursuant to Section 14.1.9.1Schedule  5

 

Year

Shading denotes an input

 

Line

No.

 

DescriptionAmountSourceDefinition

 

114.1.9.1 1.Electric Wages and Salaries Factor83.5000%Fixed per settlement Docket ER08-552

2

314.1.9.1 3.Transmission Wages and Salaries Allocation Factor13.0000%Fixed per settlement Docket ER08-552

4
5
6
7

814.1.9.1 2.Gross Transmission Plant Allocation Factor

Gross Transmission Plant Allocation Factor shall equal the

9Transmission Plant in Service#DIV/0!Schedule 6, Page 2, Line 3, Col 5total investment in

Transmission Plant in Service, Transmission Related Electric

10Plus: Transmission Related General$0Schedule 6, Page 2, Line 5, Col 5General Plant,

Transmission Related Common Plant and Transmission

11Plus: Transmission Related Common$0Schedule 6, Page 2, Line 10, Col 5Related Intangible Plant

12Plus: Transmission Related Intangible Plant$0Schedule 6, Page 2, Line 15, Col 5divided by Gross Electric Plant.

13Gross Transmission Investment#DIV/0!Sum of Lines 9 - 13

14

15Total Electric PlantFF1 207.104g

16Plus: Electric Common$0Schedule 6, Page 2, Line 10, Col 3

17Gross Electric Plant in Service$0Line 15 + Line 16

18

19Percent Allocation#DIV/0!Line 13 / Line 17

20

2114.1.9.1 4.Gross Electric Plant Allocation Factor

22

23Total Electric Plant in Service$0Line 15Gross Electric Plant Allocation Factor shall equal

24Plus: Electric Common Plant$0Schedule 6, Page 2, Line 10, Col 3Gross Electric Plant divided by the sum of Total Gas Plant,

25Gross Electric Plant in Service$0Line 23 + Line 24Total Electric Plant, and Total Common Plant

26

27Total Gas Plant in ServiceFF1 201.8d

28Total Electric Plant in Service$0Line 15

29Total Common Plant in Service$0Schedule 6, Page 2, Line 10, Col 1

Effective Date: 1/27/2020 - Docket #: ER20-2051-003 - Page 1


NYISO Tariffs --> Open Access Transmission Tariff (OATT) --> 14 OATT Attachment H - Annual Transmission Revenue Requireme --> 14.2-14.2.1 OATT Att H Attachment 1 to Attachment H

 

 

 

30Gross Plant in Service (Gas & Electric)-Sum of Lines 27-Lines 29

31

32Percent Allocation#DIV/0!Line 25 / Line 30

Effective Date: 1/27/2020 - Docket #: ER20-2051-003 - Page 1


NYISO Tariffs --> Open Access Transmission Tariff (OATT) --> 14 OATT Attachment H - Annual Transmission Revenue Requireme --> 14.2-14.2.1 OATT Att H Attachment 1 to Attachment H

 

 

Attachment 1
Schedule  6

Niagara Mohawk Power CorporationPage 1 of 2

Annual Revenue Requirements of Transmission Facilities Transmission Investment Base (Part 1 of 2)

Attachment H, section 14.1.9.2

 

Line No.

114.1.9.2 (a)Transmission Investment Base

2

3A.1.Transmission Investment Base shall be defined as (a) Transmission Plant in Service, plus (b) Transmission Related Electric General Plant, plus

4(c) Transmission Related Common Plant, plus (d) Transmission Related Intangible Plant, plus (e) Transmission Related Plant Held for Future Use, less

5(f) Transmission Related Depreciation Reserve, less (g) Transmission Related Accumulated Deferred Taxes, plus (h)

6Transmission Regulatory Assets and Liabilities, plus (i) Transmission Related Prepayments, plus (j) Transmission Related Materials and Supplies,

7plus (k) Transmission Related Cash Working Capital.

8

9

10DescriptionReferenceYearReference

11Section:

12Transmission Plant in Service(a)#DIV/0!Schedule 6, page 2, line 3,  column 5

13General Plant(b)$0Schedule 6, page 2, line 5,  column 5

14Common Plant(c)$0Schedule 6, page 2, line 10,  column 5

15Intangible Plant(d)$0Schedule 6, page 2, line 15,  column 5

16Plant Held For Future Use(e)$0Schedule 6, page 2, line 19,  column 5

17Total Plant (Sum of Line 12 - Line 16)#DIV/0!

18

19Accumulated Depreciation(f)#DIV/0!Schedule 6, page 2, line 29,  column 5

20Accumulated Deferred Income Taxes(g)#DIV/0!Schedule 7, line 6,  column 5

21Transmission Regulatory Assets and Liabilities(h)#DIV/0!Schedule 7, line 11,  column 5

22Net Investment (Sum of Line 17 -Line 21)#DIV/0!

23

24Prepayments(i)#DIV/0!Schedule 7, line 15,  column 5

25Materials & Supplies(j)#DIV/0!Schedule 7, line 21,  column 5

26Cash Working Capital(k)$0Schedule 7, line 28,  column 5

27

28Total Investment Base  (Sum of Line 22 - Line 26)#DIV/0!

Effective Date: 1/27/2020 - Docket #: ER20-2051-003 - Page 1


NYISO Tariffs --> Open Access Transmission Tariff (OATT) --> 14 OATT Attachment H - Annual Transmission Revenue Requireme --> 14.2-14.2.1 OATT Att H Attachment 1 to Attachment H

 

 

 

Niagara Mohawk Power CorporationAttachment 1

Annual Revenue Requirements of Transmission FacilitiesSchedule  6

Transmission Investment Base (Part 1 of 2)Page 2 of 2

Attachment H Section 14.1. 9.2 (a) A. 1.

Year

 

 

Shading denotes an input

 

(2)(3) = (1)*(2)(4)(5) = (3)*(4)

FERC Form

Line(1)AllocationElectricAllocationTransmission1/PSC Report

Reference for

No.TotalFactorAllocatedFactorAllocatedcol (1)Definition

 

Transmission Plant in Service shall

1Transmission PlantFF1 207.58g14.1.9.2(a)A.1.(a)equal the

balance of total investment in

2Wholesale Meter Plant#DIV/0!Workpaper 1Transmission Plant

plus Wholesale Metering

3Total Transmission Plant in Service (Line 1+ Line 2)#DIV/0!Investment.

4

Transmission Related Electric

5General Plant100.00%$013.00%(c)$0FF1 207.99g14.1.9.2(a)A.1.(b)General Plant shall

equal the balance of investment

6in Electric General

Plant mulitplied by the

7Transmission Wages and

8Salaries Allocation Factor.

9

Transmission Related Common

10Common Plant83.50%(a)$013.00%(c)$0FF1 201. 8h14.1.9.2(a)A.1.(c)Plant shall equal Common

Plant multiplied by the Electric

11Wages and Salaries

Allocation Factor and further

12multiplied by the

Transmission Wages and

13Salaries Allocation Factor.

14

Transmission Related Intangible

15Intangible Plant100.00%-13.00%(c)$0FF1 205.5g14.1.9.2(a)A.1.(d)Plant shall equal Intangible

Electric Plant multiplied by the

16Transmission Wages and

17Salaries Allocation Factor.

Effective Date: 1/27/2020 - Docket #: ER20-2051-003 - Page 1


NYISO Tariffs --> Open Access Transmission Tariff (OATT) --> 14 OATT Attachment H - Annual Transmission Revenue Requireme --> 14.2-14.2.1 OATT Att H Attachment 1 to Attachment H

 

 

 

18

WorkpaperTransmission Related Plant Held

19Transmission Plant Held for Future Use$0$01014.1.9.2(a)A.1.(e)for Future Use shall equal

the balance in Plant Held for

20Future Use associated with

property planned to be used for

21transmission service within

22five years.

Transmission Accumulated

23Depreciation

Transmission Related

Depreciation Reserve shall

24Transmission Accum. Depreciation$0FF1 219.25b14.1.9.2(a)A.1.(f)equal the

balance of: (i) Transmission

25General Plant Accum.Depreciation100.00%$013.00%(c)$0FF1  219.28bDepreciation Reserve, plus (ii)

the product of Electric General

26Common Plant Accum Depreciation83.50%(a)$013.00%(c)$0FF1 356.1 end of year balancePlant Depreciation Reserve

multiplied by the Transmission

27Amortization of Other Utility Plant100.00%$013.00%(c)$0FF1 200.21cWages and Salaries

Allocation Factor, plus (iii) the

28Wholesale Meters#DIV/0!#DIV/0!Workpaper 1product of Common Plant

Depreciation Reserve multiplied

29Total  Depreciation (Sum of Line 24 - Line 28)#DIV/0!by the Electric Wages and

Salaries Allocation Factor and

30further multiplied by the

Transmission Wages and

Salaries Allocation Factor plus

31(iv)

the product of Intangible
Electric Plant Depreciation

32Reserve

multiplied by the Transmission

33Wages and Salaries

Allocation Factor plus (v)

depreciation reserve associated

34with

the Wholesale Metering

35Investment.

36

Allocation Factor Reference

(a) Schedule  5, line 1

(b) Schedule 5, line 32 - not used on this Schedule

(c) Schedule 5, line 3

(d) Schedule 5, line 19 - not used on this Schedule

Effective Date: 1/27/2020 - Docket #: ER20-2051-003 - Page 1


NYISO Tariffs --> Open Access Transmission Tariff (OATT) --> 14 OATT Attachment H - Annual Transmission Revenue Requireme --> 14.2-14.2.1 OATT Att H Attachment 1 to Attachment H

 

 

 

 

Niagara Mohawk Power CorporationAttachment 1

Annual Revenue Requirements of Transmission FacilitiesSchedule  7

Transmission Investment Base ( Part 2 of 2)

Attachment H Section 14.1.9.2 (a) A. 1.

Shading denotes an inputYear

 

(2)(3) = (1)*(2)(5) = (3)*(4)

Line(1)AllocationElectric(4)TransmissionFERC Form 1/PSC Report

No.TotalFactorAllocatedAllocation FactorAllocatedReference for col (1)Definition

 

1Transmission Accumulated Deferred Taxes

2Accumulated Deferred Taxes (281-282)100.00%$0#DIV/0!(d)#DIV/0!FF1 275.2k14.1.9.2(a)A.1.(g)Transmission Related Accumulated Deferred Income Taxes

3Accumulated Deferred Taxes (283)$0100.00%$0#DIV/0!(d)#DIV/0!Workpaper 2, Line 5shall equal the electric balance of Total Accumulated Deferred

4Accumulated Deferred Taxes (190)100.00%$0#DIV/0!(d)#DIV/0!FF1 234.8cIncome Taxes (FERC Accounts 190, 55,281, 282, and 283 net of

5Accumulated Deferred Inv. Tax Cr (255)100.00%$0#DIV/0!(d)#DIV/0!FF1 267.8hstranded costs), multiplied by the Gross Transmission Plant

6Total (Sum of Line 2 - Line 5)$0#DIV/0!Allocation Factor.

 

7Transmission Regulatory Assets and Liabilities

8Excess AFUDC100.00%$0#DIV/0!(d)#DIV/0!FF1 232 lines 20,2514.1.9.2(a)A.1.(h)Transmission Related Regulatory Assets and Liabilities shall equal: (i) the

balance of Regulatory Assets net of Regulatory Liabilities assigned to

Transmission plus (ii) the electric balance of Regulatory Assets net of

Regulatory Liabilities multiplied by the Gross Transmission Plant Allocation
Factor.

90FAS 109$0100.00%$0#DIV/0!(d)#DIV/0!Schedule 14, line 3a, column Q

10Excess (Deficient) ADIT - Tax Rate Changes$0100.00%$0100.00%$0Schedule 14, line 2, column Q

11Total (Line 9 + Line 10)$0$0#DIV/0!

12

13Transmission PrepaymentsFF1 111.57c14.1.9.2(a)A.1.(i)Transmission Related Prepayments shall be the product of

14Less: Prepaid State and Federal Income TaxFF1 263 lines 2 &7 (h)Prepayments excluding Federal and State taxes multiplied by

15Total Prepayments (Line 13 + Line 14)$0#DIV/0!(b)#DIV/0!#DIV/0!(d)#DIV/0!the Gross Electric Plant Allocation Factor and further

16multiplied by the Gross Transmission Plant Allocation Factor.

17

18Transmission Material and Supplies14.1.9.2(a)A.1.(j)Transmission Related Materials and Supplies shall equal: (i)

19Trans. Specific  O&M Materials and Supplies$0FF1 227.8cthe balance of Materials and Supplies assigned to

20Construction Materials and Supplies#DIV/0!(b)#DIV/0!#DIV/0!(d)#DIV/0!FF1 227.5cTransmission plus (ii) the product of Material and Supplies

21Total (Line 19 + Line 20)#DIV/0!assigned to Construction multiplied by the Gross Electric

22Plant Allocation Factor and further multiplied by Gross

23Transmission Plant Allocation Factor.

24

25Cash Working Capital14.1.9.2(a)A.1.(k)Transmission Related Cash Working Capital shall be an

26Operation & Maintenance Expense$0Schedule 9, Line 23allowance equal to the product of: (i) 12.5% (45 days/ 360 days = 12.5%)

270.1250x 45 / 360multiplied by (ii) Transmission Operation and Maintenance Expense.

28Total (Line 26 * Line 27)$0

Effective Date: 1/27/2020 - Docket #: ER20-2051-003 - Page 1


NYISO Tariffs --> Open Access Transmission Tariff (OATT) --> 14 OATT Attachment H - Annual Transmission Revenue Requireme --> 14.2-14.2.1 OATT Att H Attachment 1 to Attachment H

 

 

 

 

 

 

Allocation Factor Reference

(a) Schedule  5, line 1 - not used on this Schedule

(b) Schedule 5, line 32

(c) Schedule 5, line 3 - not used on this Schedule

(d) Schedule 5, line 19

Effective Date: 1/27/2020 - Docket #: ER20-2051-003 - Page 1


NYISO Tariffs --> Open Access Transmission Tariff (OATT) --> 14 OATT Attachment H - Annual Transmission Revenue Requireme --> 14.2-14.2.1 OATT Att H Attachment 1 to Attachment H

 

 

 

Niagara Mohawk Power CorporationAttachment 1

Annual Revenue Requirements of Transmission FacilitiesSchedule  8

Cost of Capital Rate

 

Shading denotes an inputYear

Line

No.

1The Cost of Capital Rate shall equal the proposed Weighted Costs of Capital plus Federal Income Taxes and State Income Taxes.

2The Weighted Costs of Capital will be calculated for the Transmission Investment Base using NMPC’s actual capital structure and will equal the sum of (i),

(ii), and (iii) below:

3

4(i)the long-term debt component, which equals the product of the actual weighted average embedded cost to maturity of NMPC’s long-term debt

outstanding during the year and the sum of (a) the ratio of actual long-term debt to total capital at year-end; and

5(b) the extent, if any, by which the ratio of NMPC's actual common equity to total capital at year-end exceeds fifty percent (50%). Long term debt shall be

defined as the average of the beginning of the year and end of year balances of the following: long term debt less the unamortized

6Discounts on Long-Term Debt less the unamortized Loss on Reacquired Debt plus unamortized Gain on Reacquired Debt. Cost to maturity of NMPC's long-

term debt shall be defined as the cost of long term debt included in the debt discount expense and

7any loss or gain on reacquired debt.

 

8(ii)the preferred stock component, which equals the product of the actual weighted average embedded cost to maturity of NMPC’s preferred stock then

outstanding and the ratio of actual preferred stock to total capital at year-end;

9

10(iii)the return on equity component shall be the product of the allowed return on equity of 10.3% and the ratio of NMPC’s actual common equity to total

capital at year-end, provided that such ratio

11shall not exceed fifty percent (50%).

12

13WEIGHTED

14CAPITALIZATIONCOST OFCOST OFEQUITY

15CAPITALIZATIONSource:RATIOSCAPITALSource:CAPITALPORTION

16

Workpaper 6, LineWorkpaper 6,

17(i)Long-Term Debt$016b#DIV/0!#DIV/0!Line 17c#DIV/0!

Workpaper 6,

18(ii)Preferred StockFF1 112.3c#DIV/0!#DIV/0!Line 24d#DIV/0!#DIV/0!

FF1 112.16c - FF1

19(iii)Common Equity112.3,12,15c#DIV/0!10.30%#DIV/0!#DIV/0!

20

Total Investment

21Return$0#DIV/0!#DIV/0!#DIV/0!

22
23
24
25

Effective Date: 1/27/2020 - Docket #: ER20-2051-003 - Page 1


NYISO Tariffs --> Open Access Transmission Tariff (OATT) --> 14 OATT Attachment H - Annual Transmission Revenue Requireme --> 14.2-14.2.1 OATT Att H Attachment 1 to Attachment H

 

 

 

26Federal IncomeFederal Income

14.1.9.2.2.(b)Tax shall equal=(A  +[B/C]XTax Rate)

27Federal Income

(1-Tax Rate)

28

29where A is the sum of the preferred stock component and the return on equity component, each as determined in Sections (a)(ii) and for the ROE set forth in (a)(iii)

above, B is the Equity AFUDC component of Depreciation Expense for

30Transmission Plant in Service as defined at Section 14.1.9.1.16 (FF1 117.38c), and C is the Transmission Investment Base as shown at Schedule 6, Page 1 of 2, Line

28.

31

32=

(#DIV/0!+($0) /#DIV/0!X)

33(1-0)

34

35=#DIV/0!

36

37

38State IncomeState

Tax shall=Federal IncomeIncome Tax

14.1.9.2.2.(c)equal(A  +[B/C]+Tax Rate)XRate

39State Income

(1-Tax Rate)

40

41where A is the sum of the preferred stock component and the return on equity component as determined in (a)(ii) and (a)(iii) above , B is the Equity AFUDC

component of Depreciation Expense for Transmission Plant in

42Service as defined at Section 14.1.9.1.16 above, and C is the Transmission Investment Base as shown at Schedule 6, Page 1 of 2, Line 28.

43

44

45

=#DIV/0+$#DIV/

46(!(0) /0!+#DIV/0!)X

47(1-0)

48

49=#DIV/0!

50
51
52

(a)+(b)+(c)  Cost of

53Capital Rate=#DIV/0!

54
55

14.1.9.2(a) A. Return and Associated Income Taxes shall equal the product of the

56Transmission Investment Base and the Cost of Capital Rate

57

Effective Date: 1/27/2020 - Docket #: ER20-2051-003 - Page 1


NYISO Tariffs --> Open Access Transmission Tariff (OATT) --> 14 OATT Attachment H - Annual Transmission Revenue Requireme --> 14.2-14.2.1 OATT Att H Attachment 1 to Attachment H

 

 

58
59

Transmission
Investment

60Base#DIV/0!Schedule 6, page 1 of 2, Line 28

61

Cost of Capital

62Rate#DIV/0!Line 53

63

= Investment Return

64and Income Taxes#DIV/0!Line 60 X Line 62

Effective Date: 1/27/2020 - Docket #: ER20-2051-003 - Page 1


NYISO Tariffs --> Open Access Transmission Tariff (OATT) --> 14 OATT Attachment H - Annual Transmission Revenue Requireme --> 14.2-14.2.1 OATT Att H Attachment 1 to Attachment H

 

 

 

 

Niagara Mohawk Power CorporationAttachment 1

Annual Revenue Requirements of Transmission FacilitiesSchedule  9

Transmission Expenses

Attachment H Section 14.1.9.2Year

 

Shading denotes an input

(2)(3) = (1)*(2)(5) = (3)*(4)FERC Form 1/

Line(1)AllocationElectric(4)TransmissionPSC Report

No.TotalFactorAllocatedAllocation FactorAllocatedReference for col (1)Definition

Depreciation Expense

1Transmission Depreciation$0FF1 336.7f14.1.9.2.B.Transmission Related Depreciation Expense shall equal the sum of:

2General Depreciation100.0000%$013.0000% (c)$0FF1 336.10f(i) Depreciation Expense for Transmission Plant in Service, plus (ii)

3Common Depreciation83.5000%  (a)$013.0000% (c)$0FF1 356.1the product of Electric General Plant Depreciation Expense multiplied

4Intangible Depreciation100.0000%$013.0000% (c)$0FF1 336.1fby the Transmission Wages and Salaries Allocation Factor plus (iii)

5Wholesale Meters#DIV/0!Workpaper 1Common Plant Depreciation Expense multiplied by the Electric

6Total (Line 1+2+3+4+5)#DIV/0!Wages and Salaries Allocation Factor, further multiplied by the

7Transmission Wages and Salaries Allocation Factor plus (iv)

8Intangible Electric Plant Depreciation Expense multiplied by the

9Transmission Wages and Salaries Factor plus (v) depreciation

10expense associated with the Wholesale Metering Investment.

11

12Real Estate Taxes100.0000%$0#DIV/0!  (d)#DIV/0!FF1 263.25i14.1.9.2.C.Transmission Related Real Estate Tax Expense shall equal the

13electric Real Estate Tax Expenses multiplied by the Gross

14Transmission Plant Allocation Factor.

15

16Amortization of Investment Tax Credits#DIV/0!(b)#DIV/0!#DIV/0!(d)#DIV/0!FF1 117.58c14.1.9.2.D.Transmission Related Amortization of Investment Tax Credits shall

17equal the product of Amortization of Investment Tax Credits multiplied

18by the Gross Electric Plant Allocation Factor and further multiplied by

19the Gross Transmission Plant Allocation Factor.

20Transmission Operation and Maintenance

21Operation and Maintenance$0FF1 321.112b14.1.9.2.E.Transmission Operation and Maintenance Expense shall equal

22less Load Dispatching - #561$0FF1 321.84-92bthe sum of electric expenses as recorded in

23O&M (Line 21 - Line 22)$0$0FERC Account Nos. 560, 562-574.

24

25Transmission Administrative and General14.1.9.2.F.Transmission Related Administrative and General Expenses shall

26Total Administrative and GeneralFF1 323.197bequal the product of  electric Administrative and General Expenses,

27less Property Insurance (#924)FF1 323.185bexcluding the sum of Electric Property Insurance, Electric Research and

 

28less Pensions and Benefits (#926)FF1 323.187bDevelopment Expense and Electric Environmental Remediation Expense,

29less: Research and Development Expenses$0Workpaper 12

(#930)and 50% of the NYPSC Regulatory Expense

30Less: 50% of NY PSC Regulatory Expense50% of Workpaper 15multiplied by the Transmission Wages and Salaries Allocation Factor,

Less: 18a Charges (Temporary Assessment

31Workpaper 15

Effective Date: 1/27/2020 - Docket #: ER20-2051-003 - Page 1


NYISO Tariffs --> Open Access Transmission Tariff (OATT) --> 14 OATT Attachment H - Annual Transmission Revenue Requireme --> 14.2-14.2.1 OATT Att H Attachment 1 to Attachment H

 

 

 

 

32less: Environmental Remediation Expense$0Workpaper 11plus the sum of Electric Property Insurance multiplied by the Gross

33Subtotal  (Line 26-27-28-29-30-31-32)$0100.0000%$013.0000% (c)$0Transmission Plant Allocation Factor, plus transmission-specific Electric

34PLUS  Property Insurance alloc. using Plant$0100.0000%$0#DIV/0!  (d)#DIV/0!Line 27

AllocationResearch and Development Expense, and transmission-specific

35PLUS  Pensions and Benefits$88,644,000100.0000%$88,644,00013.0000% (c)$11,523,720Workpaper 3Electric Environmental Remediation Expense. In addition, Administrative

36PLUS Transmission-related research and$0$0Workpaper 12

developmentand General Expenses shall exclude the actual Post-Employment

37PLUS Transmission-related Environmental$0$0Workpaper 11

ExpenseBenefits Other than Pensions ("PBOP") included in FERC Account 926,

38Total A&G  (Line 33+34+35+36+37)$88,644,000$88,644,000#DIV/0!and shall add back in the amounts shown on Workpaper 3, page 1,

39or other amount subsequently approved by FERC under Section 205 or 206.

40Payroll Tax Expense14.1.9.2.G.    Transmission Related Payroll Tax Expense shall equal the product of

41Federal UnemploymentFF1 263.4ielectric Payroll Taxes multiplied by the Transmission Wages and

42FICAFF1 263.3iSalaries Allocation Factor.

43State UnemploymentFF1 263.9i

 

 

44Total (Line 41+42+43)$0100.0000%$013.0000% (b)$0

45

46Amortization of (Excess)/ Deficient ADIT$0100.0000%$0#DIV/0!  (d)#DIV/0!-Schedule 14, line 2,14.1.9.2.HTransmission related Amortization of Regulatory Assets and Liabilities shall

column Jequal the transmission-specific Amortization of Regulatory Assets and

Liabilities

Allocation Factor Reference

(a) Schedule  5, line 1

(b) Schedule 5, line 32

(c) Schedule 5, line 3

(d) Schedule 5, line 19

Effective Date: 1/27/2020 - Docket #: ER20-2051-003 - Page 1


NYISO Tariffs --> Open Access Transmission Tariff (OATT) --> 14 OATT Attachment H - Annual Transmission Revenue Requireme --> 14.2-14.2.1 OATT Att H Attachment 1 to Attachment H

 

 

 

Niagara Mohawk Power CorporationAttachment 1

Annual Revenue Requirements of Transmission FacilitiesSchedule  10

Billing Adjustments, Revenue Credits, Rental Income

Year

Attachment H Section 14.1.9.2 (a)

 

Shading denotes an input

Line(1)

No.DescriptionTotalSourceDefinition

 

1Billing Adjustments14.1.9.2.I.Billing Adjustments shall be any adjustments made in accordance with Section 14.1.9.4.4 below.

2( ) indicates a refund or a reduction to the revenue requirement on Schedule 1.

3

4Bad Debt Expense$0Workpaper 414.1.9.2.J.Transmission Related Bad Debt Expense shall equal

5Bad Debt Expense as reported in Account 904 related to NMPC's wholesale transmission billing.

6

7Revenue Credits$0Workpaper 514.1.9.2.K.Revenue Credits shall equal all Transmission revenue recorded in FERC account 456

8excluding (a) any NMPC revenues already reflected in the WR, CRR, SR, ECR and Reserved

9components in Attachment  H of the NYISO TSC rate; (b) any revenues associated

10with expenses that have been excluded from NMPC’s revenue requirement; and (c) any

11revenues associated with transmission service provided under this TSC rate, for which the

12load is reflected in the calculation of BU.

13

14Transmission Rents$0Workpaper 714.1.9.2.L.Transmission Rents shall equal all Transmission-related rental income recorded in FERC

15account 454.615

16

1714.1.9.4(d)

181Any changes to the Data Inputs for an Annual Update, including but not limited to

19revisions resulting from any FERC proceeding to consider the Annual Update, or

20as a result of the procedures set forth herein, shall take effect as of the beginning

21of the Update Year and the impact of such changes shall be incorporated into the

22charges produced by the Formula Rate (with interest determined in accordance

23with 18 C.F.R. § 38.19(a)) in the Annual Update for the next effective Update

24Year.  This mechanism shall apply in lieu of mid-Update Year adjustments and

25any refunds or surcharges, except that, if an error in a Data Input is discovered

26and agreed upon within the Review Period, the impact of such change shall be

27incorporated prospectively into the charges produced by the Formula Rate during

28the remainder of the year preceding the next effective Update Year, in which case

29the impact reflected in subsequent charges shall be reduced accordingly.

302The impact of an error affecting a Data Input on charges collected during the

31Formula Rate during the five (5) years prior to the Update Year in which the error

32was first discovered shall be corrected by incorporating the impact of the error on

33the charges produced by the Formula Rate during the five-year period into the

34charges produced by the Formula Rate (with interest determined in accordance

35with 18 C.F.R. § 38.19(a)) in the Annual Update for the next effective Update

Effective Date: 1/27/2020 - Docket #: ER20-2051-003 - Page 1


NYISO Tariffs --> Open Access Transmission Tariff (OATT) --> 14 OATT Attachment H - Annual Transmission Revenue Requireme --> 14.2-14.2.1 OATT Att H Attachment 1 to Attachment H

 

 

 

36Year.  Charges collected before the five-year period shall not be subject to correction.

 

(b)List of Items excluded from the Revenue Requirement

Effective Date: 1/27/2020 - Docket #: ER20-2051-003 - Page 1


NYISO Tariffs --> Open Access Transmission Tariff (OATT) --> 14 OATT Attachment H - Annual Transmission Revenue Requireme --> 14.2-14.2.1 OATT Att H Attachment 1 to Attachment H

 

 

Attachment 1
Schedule 11

Niagara Mohawk Power CorporationPage 1 of 1

System, Control, and Load Dispatch Expenses (CCC)

Attachment H, Section

14.1.9.5

 

The CCC shall equal the annual Scheduling, System Control and Dispatch Costs (i.e.,

the transmission component of control center costs) as recorded in FERC Account 561 and its associated sub-accounts using information from the prior calendar year, excluding NYISO system control and load dispatch expense
already recovered under Schedule 1 of the NYISO Tariff.

Line

No.

1Scheduling and Dispatch ExpensesYearSource

2

3Accounts561Load DispatchingFF1 321.84b

4Accounts561.1ReliabilityFF1 321.85b

5Accounts561.2Monitor and Operate Transmission SystemFF1 321.86b

6Accounts561.3Transmission Service and ScheduleFF1 321.87b

7Accounts561.4Scheduling System Control and DispatchFF1 321.88b

8Accounts561.5Reliability, Planning and Standards DevelopmentFF1 321.89b

9Accounts561.6Transmission Service StudiesFF1 321.90b

10Accounts561.7Generation Interconnection StudiesFF1 321.91b

11Accounts561.8Reliability, Planning and Standards Dev. ServicesFF1 321.92b

12

13Total Load Dispatch Expenses (sum of Lines 3 - 11)Sum of Lines 3 - 11

14

15Less Account 561 directly recovered under Schedule 1 of the NYISO Tariff

16

17Accounts561.4Scheduling System Control and DispatchLine 7

18Accounts561.8Reliability, Planning and Standards Dev. ServicesLine 11

19Total NYISO Schedule 1Line 17 + Line 18

20

21Total CCC ComponentLine 13 - Line 19

Effective Date: 1/27/2020 - Docket #: ER20-2051-003 - Page 1


NYISO Tariffs --> Open Access Transmission Tariff (OATT) --> 14 OATT Attachment H - Annual Transmission Revenue Requireme --> 14.2-14.2.1 OATT Att H Attachment 1 to Attachment H

 

 

Attachment 1
Schedule 12

Niagara Mohawk Power CorporationPage 1 of 1

Billing Units  -  MWH

Attachment H, Section 14.1.9.6

 

BU shall be the total Niagara Mohawk load as reported to the NYISO for the calendar billing year prior to the Forecast Period, including the load for customers taking service under

Niagara Mohawk’s TSC Rate. The total Niagara Mohawk load will be adjusted to exclude (i) load associated with wholesale transactions being revenue credited through the WR, CRR, SR,
ECR and Reserved components of Workpaper H of the NYISO TSC rate including Niagara Mohawk’s external sales, load associated with grandfathered OATT agreements, and any load
related to pre-OATT grandfathered agreements; (ii) load associated with transactions being revenue credited under Historical TRR Component J; and (iii) load associated with netted
station service.

Line No.SOURCE

1Subzone 1NIMO TOL (transmission owner load)

2Subzone 2NIMO TOL (transmission owner load)

3Subzone 3NIMO TOL (transmission owner load)

4Subzone 4NIMO TOL (transmission owner load)

5Subzone 29NIMO TOL (transmission owner load)

6Subzone 31NIMO TOL (transmission owner load)

 

7Total NIMO Load report to NYISO0.000Sum of Lines 1-6

 

8LESS: All non-retail transactions

9WatertownFF1 page 329.10.j

10Disputed Station ServiceNIMO TOL (transmission owner load)

11Other non-retail transactionsAll other non-retail transactions (Sum of 300,000 series PTID's from TOL)

12Total Deductions0.000Sum of Lines 9 - 11

 

13PLUS: TSC Load

14NYMPA Muni's, Misc. Villages, Jamestown (X1)FF1 page 329.17.j

15NYPA Niagara Muni's (X2)FF1 page 329.1.j

16Total additions0.000Sum of Lines 14 -15

 

17Total Billing Units0.000Line 7 - Line 12 + Line 16

Effective Date: 1/27/2020 - Docket #: ER20-2051-003 - Page 1


NYISO Tariffs --> Open Access Transmission Tariff (OATT) --> 14 OATT Attachment H - Annual Transmission Revenue Requireme --> 14.2-14.2.1 OATT Att H Attachment 1 to Attachment H

 

 

 

Niagara Mohawk Power CorporationAttachment 1

Forecasted Accumulated Deferred Income Taxes (FADIT)Schedule 13

Page 1 of 1

Shading denotes an input

 

Line

No.DescriptionAmount

1Transmission Related ADIT Balance at year-endSchedule 7, Line 6, Column L

2Less: Accumulated Deferred Inv. Tax Cr (255)Schedule 7, Line 5, Column L

3Net Transmission ADIT Balance at year-end (a)Line 1 - Line 2

4

5Forecasted Transmission Related ADIT balanceInternal Records

6

7Change in ADITLine 5 - Line 3

8

9Monthly Change in ADITLine 7 / 12 Months

10

(B)

(A)Remaining(C) = (B)/ Line 17 (B)(D) = Line 9  *(C)

11MonthDaysIRS Proration %Prorated ADIT

12Month 1100.00%-

 

13Month 2100.00%-

14Month 3100.00%-

15Month 4100.00%-

16Month 5100.00%-

 

17Month 6100.00%-

18Month 7#DIV/0!  %-

19Month 8#DIV/0!  %-

20Month 9#DIV/0!  %-

21Month 10#DIV/0!  %-

22Month 11#DIV/0!  %-

23Month 12#DIV/0!  %-

24Total Prorated ADIT Change (Sum of 12 through 23)$-to Schedule 2, Line 22

 

(a) The balance in Line 1, Total Transmission ADIT

Balance at year-end, shall equal such ADIT that is subject to the normalization rules prescribed

by the IRS and the net of the amounts recorded in FERC Account Nos. 281-283 and 190.

Effective Date: 1/27/2020 - Docket #: ER20-2051-003 - Page 1


NYISO Tariffs --> Open Access Transmission Tariff (OATT) --> 14 OATT Attachment H - Annual Transmission Revenue Requireme --> 14.2-14.2.1 OATT Att H Attachment 1 to Attachment H

 

 

 

Niagara Mohawk Power CorporationAttachment 1

Annual Revenue Requirements of

Transmission Facilities

(Excess)/Deficient ADIT WorksheetSchedule 14

For Costs in 20__

Page 1 of 2

 

Input Cells are Shaded Yellow

(A)(B)( C)(D) = (A)( E)(F)(G)(H)(I)(J)

+  (B) +

(C)

20__ Year End Unamortized (Excess)/Deficient ADIT (e)Amortization Periods (f)Amortization Expense (e ) (g)

FERCFERCTotal

LineAccount12/31/20_AccountAmortizati

No.DescriptionNo. (a)RefProtectedUnprotectedGross-Up (i)_ BalanceProtectedUnprotectedNo. (g)ProtectedUnprotectedGross-Up (i)on

Transmission (EXCESS)/DEFICIENT ADIT -

TAX RATE CHANGES

1a(b)

----

1 [](c)

----

2Total (Sum Lines1a thru 1[]) (d)

--------

Electric FAS 109/(Excess) Deficient ADIT

3a     FAS 109 - Electric(j)

3[]

4Total (Sum Lines 3a thru 3[]) (d)

 

5TOTAL Electric FAS 109/(Excess)

Deficient ADIT (Line 2 + Line 4)

 

6Deficient ADIT - Regulatory AssetFF 1 Page

Account 182.3232 b

7Excess ADIT - Regulatory LiabilityFF1 Page

Account 254278 b

8Deficient/(Excess) Deferred Income Tax

Regulatory Asset/(Liability) (Line 6 +
Line 7)

 

 

Notes:

(a) The affected ADIT accounts were remeasured by comparing ADIT on cumulative temporary differences for each item in accounts 190, 282, and 283 at the current Federal, State & Local Income Tax rate to ADIT balances at historical

Federal, State & Local Income Tax rates. The difference between the two represents the excess or deficient ADIT.  Refer to Schedule 14(a).

(b)Relates to the Federal Income Tax Rate change associated with the 2017 Tax Cuts and Jobs Act.

(c)Niagara Mohawk Power Corporation may add or remove sublines and notes explaining them without a FPA Section 205 filing.

(d)Total equals the sum of sublines a through [], where [] is the last subline denoted by a letter.

(e)Enter credit balances as negatives.

(f)Deficient/(excess) ADIT balances will be amortized as follows:  "Protected property-related" = ARAM, "unprotected property-related" = 31 yrs, all other unprotected deficient/(excess) ADIT balances = 10 yrs.

(g)Deficient ADIT is amortized to Account 410.1; Excess ADIT is amortized to Account 411.1.

(h)Other changes to (excess)/deficient ADIT due to the conclusion of IRS audits during applicable periods affected by a change in federal, state or local tax rates, the establishment of new (excess)/deficient ADIT due to future tax rate

changes and classification changes between protected and unprotected categories due to the passage of time.

Effective Date: 1/27/2020 - Docket #: ER20-2051-003 - Page 1


NYISO Tariffs --> Open Access Transmission Tariff (OATT) --> 14 OATT Attachment H - Annual Transmission Revenue Requireme --> 14.2-14.2.1 OATT Att H Attachment 1 to Attachment H

 

 

 

 

(i)Tax gross up calculated using the Composite Tax Rate / (1 - Composite Tax Rate) in effect for the applicable period.

(j)Other Electric Transmission and Distribution FAS 109 balances

(k)Niagara Mohawk Power Company will add footnotes below to identify excess or deficient ADIT from future Federal, State and

Local income tax rate changes.

(l)[]

Effective Date: 1/27/2020 - Docket #: ER20-2051-003 - Page 1


NYISO Tariffs --> Open Access Transmission Tariff (OATT) --> 14 OATT Attachment H - Annual Transmission Revenue Requireme --> 14.2-14.2.1 OATT Att H Attachment 1 to Attachment H

 

 

 

Niagara Mohawk Power CorporationAttachment 1

Annual Revenue Requirements of

Transmission Facilities

(Excess)/Deficient ADIT WorksheetSchedule 14

For costs in 20__

Page 2 of 2

 

Input cells are Shaded Yellow

(N) = (A) - (G) -(O) = (B) - (H) -

(K)(L)(M)(K)(L)(P)=(C)-(I)-(M)(Q)= (N) + (O) + (P)(R)

 

Other Adjustments (e) (h)20__ Year End Unamortized (Excess)/Deficient ADIT (e)

Line

No.ProtectedUnprotectedGross-Up(i)ProtectedUnprotectedGross-Up (i)12/31/20__ BalanceReference

 

 

 

 

1a

-----

1 []

-----

2

-------

3a

 

3b

3c

----

3d

3 []

----

4

-------

 

 

5

-------

Effective Date: 1/27/2020 - Docket #: ER20-2051-003 - Page 1


NYISO Tariffs --> Open Access Transmission Tariff (OATT) --> 14 OATT Attachment H - Annual Transmission Revenue Requireme --> 14.2-14.2.1 OATT Att H Attachment 1 to Attachment H

 

 

 

 

6FF1 Page 232 f

-

7FF1 Page 278 f

 

8

-

Effective Date: 1/27/2020 - Docket #: ER20-2051-003 - Page 1


NYISO Tariffs --> Open Access Transmission Tariff (OATT) --> 14 OATT Attachment H - Annual Transmission Revenue Requireme --> 14.2-14.2.1 OATT Att H Attachment 1 to Attachment H

 

 

 

Niagara Mohawk Power Corporation

Annual Revenue Requirements of Transmission Facilities
(Excess)/Deficient ADIT Worksheet

Schedule 14(a) - Remeasurement Support - ___________________________
For Costs in the Year of 20__

 

 

 

 

 

(A)(B) = (A)* ___%(C) = (A)* ___%(D) = (B) - (C)(E)(F) = (E)* _____%(G) = (E)*____%(H) = (F) - (G)(I) = (D) + (H)(J)(K) = (I) - (J)

 

Gross TemporaryGross Temporary

Difference(Excess)/Difference(Excess)/Total (Excess)/Adjustments20__ (Excess)/

FERCFiscal Year EndedDeficient ADITFiscal Year EndedDeficient ADITDeficient ADITPostDeficient ADIT

LineAccountMarch 31, 20__ (a)due to RateMarch 31, 20__ (a)due to Ratedue to RateRemeasurementdue to Rate

No.DescriptionNo.(d)ADIT @ __%ADIT @ __%Change(d)ADIT @ _____% (c)ADIT @ ____%ChangeChange(d)Change

 

 

1a--------

1[ ]--------

2    Total (Sum Lines 1a thru 1[]) (b)-----------

 

 

 

Notes:

(a)Company records

(b)Total equals the sum of sublines a through [], where [] is the last subline denoted by a letter.  Niagara Mohawk Power Company may add or remove sublines without a FPA Section 205 filing.

(c)When the effective date for an income tax rate change falls within a Company’s fiscal tax year, the income tax rate for such a year shall be the sum of the number of days in each time period times the tax rate for each a period.

 

Blended RateDaysEffective RateBlended Rate

0.00%

0.00%

0.00%

 

 

(d)Enter credit balances as negatives.

(e)Niagara Mohawk Power Company may add footnotes below without a FPA Section 205 filing.

 

Effective Date: 1/27/2020 - Docket #: ER20-2051-003 - Page 1