S02V02P01 - APP - Southern California · PDF file• Four Corners Generating Station ......

An E D IS O N IN TERN AT IO N A L® Company

(U 338-E)

2015 General Rate Case APPLICATION

Workpapers

Results of Operations (RO)Plant, Taxes, Depreciation Expense and Reserve, Rate Base, and Productivity SCE-10 Volume 02, Chapter III

N ovem ber 2013

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Workpaper - Southern California Edison / 2015 GRC - APPLICATION1

III.

DEPRECIATION STUDY

A. Purpose and Scope

T his section o f the R esu lts o f O perations presents SC E ’s proposed depreciation param eters and

rates p roposed for the 2 0 1 5 -2 0 1 7 period. SCE retained D ane W atson from A llian ce C onsu lting Group

to conduct and support the depreciation study for S C E ’s 2015 G R C , w h ich is presented in SC E -10,

V olu m e 3, “D irect T estim on y o f D ane A . W atson” and the accom panying D epreciation Study.

T here are depreciation param eters that are n ot d iscu ssed in Mr. W atson ’s testim ony, w h ich w ill

b e d iscu ssed in th is chapter. T hese parameters are related to the fo llow ing:

• San O nofre N u clear G enerating Station (SO N G S )

• Four Corners G enerating Station

• M ohave G enerating Station

• Solar 2 D ecom m ission in g

• M ountainview U nits 1 and 2 D ecom m ission in g

T hese assets are not addressed in Mr. W atson’s testim ony due to the unique circum stances

surrounding them , the depreciation param eters for th ese assets w ill be d iscu ssed in Section E b elow .

B. Summary of Proposal

O verall, SCE is proposing changes in depreciation rates that w ill result in a total increase o f

S19743 m illion b ased on 20 1 2 plant.44

43 $88 million o f the increase is associated with SONGS. The non-SONGS related increase in proposed depreciation expenseis $108 million.

44 See Deprecation Forecast in Chapter II o f this volume, for the total forecast o f depreciation expense for 2015, 2016 and 2017.

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Exhibit No. SCE-10 / Results of Operations / Vol. 02 / Ch. IIIWitness: R. Fisher

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Workpaper - Southern California Edison / 2015 GRC - APPLICATION

See WP p.4

Figure III-2Depreciation Rate Proposal Impact by Class o f Plant

Based on Year-End 2012 Plant Balances

D

A uthorized Ra tes SO N G S Proposed Rates

1,800

88

1,500

1,450

1,400G&I

T he decrease in annual depreciation exp en se for production p lant is driven by the ex ten sion o f

the licen se life at the P alo V erde N u clear G eneration Station. Increases in annual depreciation expense

for transm ission and distribution assets are due to , increasing rem oval co sts, m itigated by som e

lengthen ing serv ice life expectations. T ransm ission and distribution im pacts are d iscu ssed in m ore

detail b e low . T he increases in annual depreciation exp en se for general and intangib le assets is largely

due to changes in lives.

1. Overview of Transmission and Distribution

P roposed increases in depreciation rates for transm ission and distribution assets is driven

b y increases in n et sa lvage costs (co sts to retire assets), m itigated by lon ger average serv ice liv e s , as

show n b e lo w in F igure III-3.

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S e e W P p . 1 6

Figure III-3 Depreciation Expense Im pact o f

Transmission & Distribution Parameter Updates

Authorized Rates Life Updates N et Salvage Updates Proposed Rates

SC E ’s proposal results in a transm ission and distribution com p osite depreciation rate o f

4.02% . T his is a reasonable increase com pared to past proposed levels:

S e e W P p . 1 8 " I "

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4Workpaper - Southern California Edison / 2015 GRC - APPLICATION

S e e W P p . 1 8

Figure III-4 Proposed and Authorized

Transmission & Distribution Composite Depreciation Rates Based on Year-End 2012 Plant Balances

6.0%

5.5%

f» 5.0%-W

g 4.5% •J=.g

u 4.0%Mau

O

Proposedc

E

4.14%

3.5%

3.0%

General Rate Case

T he increase in net sa lvage costs (typ ica lly expressed as a percent o f plant b e in g retired)

is not a recent d iscovery . SC E has b een requesting larger n egative net sa lvage rates for over a decade

n ow , but authorized param eters have not kept pace. Figure III-5 b e lo w sh ow s proposed net sa lvage and

authorized n et sa lvage for S C E ’s transm ission and distribution assets as a percent o f plant over the last

four G eneral R ate C ases.45

45 D.12-11-051 requested that SCE provide testimony in asset accounts where SCE’s proposed net salvage rate is at least 25% more than comparable industry averages. SCE does not possess nor is it aware of any industry statistics that provides recorded net salvage ratios to make such a comparison possible.

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Figure III-5 Proposed and Authorized

Transmission & Distribution Composite Net Salvage Rates Based on Year-End 2012 Plant Balances

General Rate Case

1 In each o f the cases, SCE has proposed m oderate increases over the then current

2 authorized lev e ls . W hile the p roposed net sa lvage percentages m ay appear sign ifican t, includ ing the

3 proposed am ounts over 2 0 1 2 authorized lev e ls , the actual recorded lev e ls o f n et sa lvage are far greater,

4 as show n in Figure III-6 b elow .

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Figure III-6 Transmission & Distribution Recorded N et Salvage Rates

Compared to Proposed and Authorized Levels

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MSS

73V I

160%

140%

120%

100%

80%

60%

40%

20%

0%

146%

113%

101%

See WP p.20

Proposed (64%)

Authorized (47%)

1998 2012 2003 2012 2008 2012

Recorded Period

T he gap b etw een authorized net sa lvage and recorded net sa lvage is deferred to future

ratepayers, w h o w ill bear the cost. T he am ount deferred is not static-it continues to accum ulate w ith

each p assin g year that a gap exists.

E ven on a dollar b asis, w h en com paring the total net sa lvage experienced relative to plant

retirem ents to the future proposed am ounts, the request is m od est and reasonable. Figure III-7 b e low

sh ow s 15 years o f recorded retirem ent experience, w here SCE has incurred approxim ately $1 .6 b illion in

net sa lvage costs from $2.3 b illion in retirem ents. SC E ’s proposal is to have recovered approxim ately

$15.1 b illion over the rem aining life s o f $ 2 3 .4 b illion in retirem ents ($2 .7 b illion o f w h ich has been

recovered through the end o f 2012).

B

A

AE - See

D WP p. 12A,B,C,D - See WP p.20

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S e e W P p . 2 0

Figure III-7 Recorded and Future

Transmission & Distribution Plant Retirements and Net Salvage

sc

$25

$20

$15

$10

$5

$0

23.4

□ R etirem ents

■ N et Salvage

15 Years Recorded Future (All Current Assets)

C. Depreciation Background

1. Purpose of Depreciation

To provide serv ice to its custom ers, SCE incurs both exp en ses and capital expenditures.

G enerally A ccep ted A ccou n tin g P rincip les, sp ec ifica lly the M atching Principle,46 govern w hether a

particular cost should be cap italized or expensed . W hile the return on SC E ’s capital assets is m ade by

applying an authorized rate o f return (cost o f capital) to its net investm ent, the return o f in vestors’ capital

investm ent is m ade through depreciation expense. D epreciation is a m ajor exp en se representing the

recovery o f the original cost o f fixed capital le ss estim ated n et sa lvage over an a sset’s u sefu l life . SC E ’s

investors are entitled to recover costs they in vested to provide electric serv ice to S C E ’s custom ers. The

depreciation rates SCE proposed in th is exh ib it are d esign ed to accom plish that objective.

46 The matching principle states that each expense item related to revenue earned must be recorded in the same accounting period as the revenue it helped to earn.

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2. CPUC’s Standard Practice U-4

SC E fo llo w s the C o m m ission ’s Standard Practice U -4 , D eterm ination o f Straight-Line

R em ain ing L ife D epreciation A ccruals (“U -4 ,” or “ Standard Practice U -4 ”), dated January 3, 1961.

Standard Practice U -4 “sets forth various factors in fluencing the determ ination o f depreciation accruals

and describes m ethods o f calcu lating th ese accruals” w ith the purpose o f assisting “the C om m ission sta ff

in determ ining proper depreciation exp en ses.”47 A lthou gh over 4 0 years old , the Standard Practice U -4

represents conventional u tility depreciation practices and the C PU C continues to adhere to this standard.

3. Current Gap to Accomplishing Depreciation Objectives and Meeting Requirements

in Standard Practice U-4

A s sum m arized above and addressed in detail in Mr. W atson ’s testim on y,48 the

depreciation study addresses the gap that ex ists betw een recorded net sa lvage and authorized net sa lvage

for SC E ’s transm ission and distribution assets. For several o f SC E ’s accounts, the authorized net

sa lvage rates are sign ifican tly low er than w hat SCE continues to experience and w hat w e reasonably

exp ect to occur in the future. Standard Practice U -4 ’s requirem ent is to u se the exp ected future net

sa lvage to m eet the objective o f depreciation. T he disparity b etw een our exp ected future net sa lvage and

the authorized am ounts prevents SCE from properly m atching asset costs to the periods custom ers are

receiv in g the serv ice o f that asset, w h ich is the fundam ental objective o f depreciation. C ost m atching

ensures that future custom ers aren’t burdened w ith a disproportionate share o f costs or costs for assets

from w h ich they receive no benefit. T he longer the disparity ex ists, the greater the burden future

custom ers w ill have to bear.

D. Depreciation Study Results

1. Summary of Results

SC E retained D ane W atson o f A llian ce C onsulting Group to conduct the depreciation

study to d evelop and support proposals for serv ice lives and net sa lvage for SC E ’s assets (w ith the

excep tion o f the assets d iscu ssed in Section E b e lo w ).49 T able III-9 (b e low ) sum m arizes the authorized

depreciation rates for SC E ’s m ass assets and rem aining liv es o f certain generation assets:

47 Standard Practice U-4 “sets forth various factors in influencing the determination of depreciation accruals and describes methods of calculating these accruals to assist the Commission staff in determining proper depreciation expenses.”

48 See Exhibit SCE-10, Volume 3.

49 Id.

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S e e W P p p . 2 - 1 1

Table III-9 Transmission, Distribution, and General Plant

Depreciation Accrual Rates Years 2012-2017

Account No. Account Description 2012 2014 2015 2017Authorized (%) Proposed (%)

Transmission Plant350 Easements 1.67 % 1.67 %352 Structures and Improvements 2.38 % 2.53 %353 Station Equipment 2.89 % 3.04 %354 Towers and Fixtures 2.54 % 3.17 %355 Poles and Fixtures 3.43 % 4.38 %356 Overhead Conductors & Devices 3.57 % 3.67 %357 Underground Conduit 1.70 % 1.73 %358 Underground Conductors & Devices 2.81 % 2.65 %359 Roads and Trails 1.69 % 1.52 %

Distribution Plant360 Easements 1.67 % 1.67 %361 Structures and Improvements 3.20 % 3.04 %362 Station Equipment 3.13 % 3.28 %364 Poles, Towers and Fixtures 7.06 % 7.81 %365 Overhead Conductors & Devices 4.61 % 5.15 %366 Underground Conduit 2.16 % 2.45 %367 Underground Conductors & Devices 3.35 % 3.90 %368 Line Transformers 3.68 % 3.93 %369 Services 4.76 % 5.76 %370 Meters Non SmartConnect 6yr RL 6yr RL370 Meters SmartConnect 5.35 % 5.30 %373 Street Lighting & Signal Systems 2.73 % 3.43 %

General Plant389 Easements 1.67 % 1.67 %390 Structures and Improvements 1.80 % 2.74 %

391.1 Office Furniture 5.00 % 5.00 %391.2 Personal Computers 20.00 % 20.00 %391.3 Mainframe Computers 20.00 % 20.00 %391.4 DDSMS Security Monitoring System 16.31 % 12.90 %391.5 Office Equipment 20.00 % 20.00 %391.6 Duplicating Equipment 20.00 % 20.00 %391.7 PC Software 20.00 % 20.00 %393 Stores Equipment 5.00 % 5.00 %394 Tools & Work Equipment 10.00 % 10.00 %395 Laboratory Equipment 6.67 % 6.67 %397 Telecommunication Equipment 7.57 % 9.77 %398 Misc Power Plant Equipment 5.00 % 5.00 %

Production PlantMohave Generating Station 3yr RL 3yr RLFour Corners Generating Station 2yr RL 5yr RLSan Onofre Nuclear Generating Station Used and Useful 9.2yr RL 9.5yr RLSan Onofre Nuclear Generating Station Not Required 9.2yr RL 5yr RLPalo Verde Nuclear Generating Station 12.7yr RL 33.5yr RLPeakers 19.4yr RL 20.6yr RLMountainview Units 3&4 19.1yr RL 23.0yr RLSolar Photvoltaic 17.2 yr RL 18.6yr RLFuel Cell N/A 10yr RL

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2. Use of Aged Data

A s part o f the d ecision in SC E ’s 2 0 1 2 GRC, the C om m ission d irected that “ SCE should

inform the C om m ission w hether it u sed any aged data and i f not, w h en su ffic ien t data is exp ected to be

availab le .”50 SCE began co llectin g aged data in the m idd le o f 2 0 0 8 , and does not have su ffic ien t aged

data to perform an e ffec tiv e actuarial life analysis. SC E expects that aged data m ay b ecom e u sefu l in 10

years or so.

E. Select Generation Assets

SC E has five generation plants that h ave already b een or w ill be shut dow n during the years

2 0 1 5 -2 0 1 7 . T he circum stances surrounding th ese assets and the proposed cost recovery o f the

rem aining unrecovered investm ent w ill be addressed in this section . T he five plants are: 1) San Onofre

G enerating Station; 2 ) Four Corners G enerating Station; 3 ) M oh ave G enerating Station; 4 ) Solar 2

D ecom m ission in g; and 5) M ou nta inview U nits 1 & 2 D ecom m ission in g .

1. San Onofre Generating Station

SC E announced the perm anent shutdow n o f SO N G S U n its 2and 3 on June 7, 2 013 . SCEP p .22is proposing to retain the current authorized life for SO N G S plant that is c la ssif ied as u sed and usefu l

and am ortize the unrecovered investm ent through the rem aining life o f 9 .5 years (through June 2022 ).

For SO N G S plant that is no longer required SC E is proposing a 5 year rem aining life b eg in n ing June

2013.

In addition to the fix ed asset costs, the balance o f m aterials and supplies is approxim ately

$1 0 0 m illion at year-end 2 0 1 2 . SC E is proposing to am ortize this balance along w ith capital investm ent

over the rem aining life starting 2015 .

2. Four Corners Generating Station

Four Corners is assum ed to cease operations in July 2 0 1 6 and initiate d ecom m ission in g

activ ities. B ased on the depreciation life authorized in SC E ’s 2 0 1 2 G R C , SCE w ill have fu lly

depreciated the net investm ent through 20 1 4 in addition to $37 m illion authorized for d ecom m ission in g .

There is $28 m illion o f additional capital and d ecom m iss ion in g costs exp ected in the 2 0 1 5 -2 0 1 7 period

above w hat w ill have b een accrued for through 2 0 1 4 .51 SC E is proposing to am ortize th ese costs over

the 2 0 1 5 -2 0 1 7 period.

50 D .12-11-051.

51 See Exhibit SCE-02, Volume 6, Part 2.

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3. Mohave Generating Station

T he M ohave G enerating Station w as shut dow n on 1 2 /3 1 /2005 . Pursuant to D .1 2 -1 1 -

051 , SCE w ill continue to am ortize the net investm ent and d ecom m ission in g costs through 2 015 . The

balance o f th ese costs is $23 m illion as o f 1 2 /3 1 /2012 . In addition, there are capital costs related to

continued operations and the aquifer study w h ich have not b een c lo sed to plant and depreciated. SC E is

proposing to retain the authorized a llocation period and depreciate the balance o f th ese costs ($26

m illion ), in 2015 .

4. Solar 2 Decommissioning

SC E w as authorized to accrue approxim ately $3 m illion in d ecom m ission in g costs for its

Solar 2 generating facility .52 SCE has sin ce com pleted the d ecom m ission in g at a total cost o f

approxim ately $1 m illion . SCE is prop osing to am ortize the balance o f depreciation accrued, but not

spent, back to custom ers over the 2 0 1 5 -2 0 1 7 GRC period.

5. Mountainview Units 1 and 2 Decommissioning

SC E w as authorized to accrue approxim ately $11 m illion in d ecom m ission in g costs for

its M oun tainview U nits 1 and 2 generating facility .53 SC E has since com pleted the d ecom m ission in g at

a total cost o f approxim ately $3 m illion . SCE is proposing to am ortize the balance o f depreciation

accrued, but not spent, back to custom ers over the 2 0 1 5 -2 0 1 7 GRC period.

52 D.12-11-051.

53 Id.

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2015 General Rate Case - APPLICATION INDEX OF WORKPAPERS

EXHIBIT SCE-10, Volume 2

DOCUMENT PAGE(S)Comparison of Depreciation Accrual Rates Straight Line Remaining Life Method 1-4

Annual Accrual Rate Determination Straight Line Life Method 5-14Account Impact of Life and Net Salvage Parameters 15-16Transmission and Distribution Composite Rate Calculations 17-20SONGS Materials & Supplies Recorded Balance 21-22


S C E - 1 0 , V o lu m e 2 , R e s u l t s o f O p e r a t io n s

D e p r e c ia t i o n S t u d y

Witness: Rick Fisher

C o m p a r is o n o f D e p r e c ia t i o n A c c r u a l R a te s

S t r a ig h t L i n e R e m a i n i n g L i f e M e t h o d



Southern California Edison Comparison of Depreciation Accrual Rates

Straight Line Remaining Life Method For Estimated Year 2015 ($ 000's)

PRESENT PRESENT PROPOSED PROPOSEDANNUAL ANNUAL ANNUAL ANNUAL INCREASE

GROSS PLANT FUTURE RESERVE ACCRUAL ACCRUAL ACCRUAL ACCRUAL (DECREASE)Production Jan. 1, 2013 DECOMM Jan. 1, 2013 RATE/LIFE AMOUNT RATE/LIFE AMOUNT IN ACCRUALNuclear Production

PVNGS Production 1,786,975 1,464,327 12.7 25,405 33.5 9,619 (15,786)PVNGS DBD & Debits 26,547 24,017 13.1 193 33.5 75 (118)SONGS Used and Useful 2,381,540 2,045,980 9.2 36,474 9.5 35,321 (1,153)SONGS - Retires 2,418,299 1,996,619 9.2 45,835 5.0 84,336 38,501SGRP 584,172 25,048 9.2 60,774 5.0 111,825 51,050

Total Nuclear Production 7,197,533 5,555,991 9.7 168,681 6.8 241,176 72,495

Steam ProductionMountainview 698,273 (9,493) 165,077 19.1 28,413 23.0 23,596 (4,817)Four Corners 589,434 (36,581) 547,310 2.0 39,393 2.0 39,393 0Mohave - Production 312,317 (32,711) 321,838 3.0 7,727 3.0 7,727 0

Total Steam Production 1,600,024 (78,786) 1,034,225 8.5 75,533 9.1 70,715 (4,817)

Other ProductionProduction - Pebbly Beach 41,242 (655) 16,201 18.7 1,371 18.7 1,371 0Production - Peakers 298,986 (7,423) 59,923 19.4 12,705 20.6 11,946 (759)Production - Solar PV 338,868 (27,175) 34,616 17.2 19,269 18.6 17,781 (1,487)

Total Other Production 679,096 (35,252) 110,741 19.1 33,345 19.4 31,099 (2,247)

Change in Decommissioning EstimatesMountainview - 3&4 (6,824) 23.0 297 297Four Corners (20,960) 3.0 6,987 6,987Mohave (2,511) 1.0 2,511 2,511Pebbly Beach (5,951) 18.7 318 318Peakers (4,680) 20.6 227 227Solar PV (54,729) 18.6 2,936 2,936

Total Change in Decomm Estimates (95,654) 13,275

Depreciation Expense RefundsOriginal Mountainview 1&2 Decomm Estimate (10,600) 10,923 3.0 (108) 3.0 (108) 0Solar 2 Original Decomm Estimate (4,639) 3,732 2.0 454 2.0 454 0Difference Between Recorded and Estimate 11,142 3.0 (3,714) (3,714)

Total Refund Accrual (3,714)

Hydro Production330 Land and Land Rights 3,311 2.84% 94 2.69% 89 (5)331 Structures and Improvements 157,619 1.63% 2,569 2.24% 3,531 961332 Reservoirs, Dams and Waterways 513,023 1.85% 9,491 2.36% 12,107 2,616333 Water Wheels, Turbines & Genera 149,324 1.72% 2,568 2.38% 3,554 986334 Accessory Electric Equipment 178,936 3.94% 7,050 4.22% 7,551 501335 Misc. Power Plant Equipment 12,389 1.61% 199 2.48% 307 108336 Roads, Railroads & Bridges 11,947 2.48% 296 4.73% 565 269

Total Hydro Production 1,026,548 2.17% 22,268 2.70% 27,704 5,436

Total Production 10,503,201 (213,789) 6,715,611 300,174 380,602 80,428





PRESENT PRESENT PROPOSED PROPOSEDANNUAL ANNUAL ANNUAL ANNUAL INCREASE

GROSS PLANT ACCRUAL ACCRUAL ACCRUAL ACCRUAL (DECREASE)Transmission and D istribu tion Jan. 1, 2013 RATE/LIFE AMOUNT RATE/LIFE AMOUNT IN ACCRUAL

Transmission Plant350.2 Easements 148,017 1.67% 2,472 1.67% 2,472 0

352 Structures and Improvements 376,680 2.38% 8,965 2.53% 9,530 565353 Station Equipment 3.981.958 2.89% 115.079 3.04% 121,052 5,973

Total Transmission Substations 4,358,638 2.85% 124,044 3.00% 130,582 6,538

354 Towers and Fixtures 772,204 2.54% 19,614 3.17% 24,479 4,865355 Poles and Fixtures 603,692 3.43% 20,707 4.38% 26,442 5,735356 Overhead Conductors & Devices 706,021 3.57% 25,205 3.67% 25,911 706357 Underground Conduit 48,517 1.70% 825 1.73% 839 15358 Underground Conductors & Devices 208,167 2.81% 5,850 2.65% 5,516 (333)359 Roads and Trails 43,039 1.69% 727 1.52% 654 iZ i iTotal Transmission Lines 2,381,640 3.06% 72,927 3.52% 83,842 10,914

Total Transmission 6,888,295 2.90% 199,443 3.15% 216,895 17,452

Distribution Plant360.2 Easements 56,250 1.67% 939 1.67% 939 0

361 Structures and Improvements 436,831 3.20% 13,979 3.04% 13,280 (699)362 Station Equipment 1,761,038 3.13% 55,120 3.28% 57,762 2,642Total Distribution Substations 2,197,869 3.14% 69,099 3.23% 71,042 1,943

364 Poles, Towers and Fixtures 1,655,027 7.06% 116,845 7.81% 129,258 12,413365 Overhead Conductors & Devices 1,195,653 4.61% 55,120 5.15% 61,576 6,457366 Underground Conduit 1,389,563 2.16% 30,015 2.45% 34,044 4,030367 Underground Conductors & Devices 4,402,044 3.35% 147,468 3.90% 171,680 24,211368 Line Transformers 3,022,096 3.68% 111,213 3.93% 118,768 7,555369 Services 1,172,062 4.76% 55,790 5.76% 67,511 11,721370 Meters 888,759 5.35% 47,549 5.30% 47,104 (444)373 Street Lighting & Signal Systems 753,721 2.73% 20,577 3.43% 25,853 5,276Total Distribution Lines 14,478,925 4.04% 584,576 4.53% 655,794 71,218

Total Distribution 16,733,043 3.91% 654,614 4.35% 727,775 73,160

Total Transmission and Distribution 23,621,337 3.62% 854,057 4.00% 944,670 90,613





General and IntangibleGeneral Plant

389.2 Easements

390 Structures and Improvements 391.x Furniture & Equipment

391.x Computers 391.4 Security Monitoring (DDSMS) 391.x Stores/Lab/Miscellaneous 397.x Telecommunications 39x General OtherTotal General Plant

GROSS PLANT Jan. 1, 2013

PRESENTANNUALACCRUALRATE/LIFE

PRESENTANNUALACCRUALAMOUNT

PROPOSEDANNUALACCRUALRATE/LIFE

PROPOSEDANNUALACCRUALAMOUNT

Intangible PlantHydro Relicensing Radio Frequency Other Intangibles

Cap Soft 5yr*Cap Soft 7yr*Cap Soft 10yr*Cap Soft 15yr*

Total Cap Soft Total Intangible

Catalina PlantTotal General and Intangible

*Includes reserve adjustments

SONGS

Generation (Non-SONGS)

Transmission

Distribution

General and Intangible

Total Company

F i g u r e 111-2

38,084,982 1,582,523 1,779,122

INCREASE (DECREASE) IN ACCRUAL

3,269 1.6 7% 55 1.67% 55 0

843,141 1.8 0% 15,177 2.74% 23,097 7,921181,866 3.34% 6,074 4.62% 8,410 2,335

497,349 19.35% 96,237 20.99% 104,416 8,17924,282 16.31% 3,960 12.90% 3,133 (827)92,684 8.1 3% 7,535 6.54% 6,064 (1,471)

579,144 7.57% 43,841 9.77% 56,564 12,72386,287 15.22% 13,133 11.42% 9,854 (3,279)

2,308,023 8.0 6% 186,012 9.17% 211,592 25,580

124,930 2.64% 3,295 2.52% 3,143 (152)18,723 2.5 0% 468 2.50% 468 0

511 5.00% 26 5.00% 26 0144,165 2.6 3% 3,789 2.52% 3,637 (152)

449,749 21.41% 96,285 20.58% 92,578 (3,707)861,861 14.71% 126,746 14.93% 128,686 1,940

71,434 10.00% 7,143 12.45% 8,893 1,750124,571 6.6 7% 8,303 6.78% 8,449 145

1,507,614 15.82% 238,478 15.83% 238,605 1271,651,779 14.67% 242,267 14.67% 242,242 (25)

642 1.9 6% 13 2.57% 16 43,960,443 10.82% 428,292 11.46% 453,851 25,559

5,384,010 143,083 231,481 88,399

5,119,191 157,091 149,120 (7,971)

6,888,295 199,443 216,895 17,452

16,733,043 654,614 727,775 73,160

3,960,443 428,292 453,851 25,559

196,600

^ — \A _






A n n u a l A c c r u a l R a te D e t e r m in a t i o n

S t r a ig h t L i n e R e m a i n i n g L i f e M e t h o d


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A c c o u n t I m p a c t o f L i f e a n d N e t S a lv a g e P a r a m e te r s



Southern C alifo rnia Edison Calculation o f Expense Impact

Transmission and D istribution ($ 000's)

Authorized Change due Change due ProposedTRANSMISSION PLANT Accrual to Life to Net Salvage Accrual

350.2 Easements 2,472 - - 2,472

352 Structures and Improvements 8,965 142 430 9,537353 Station Equipment 115,079 (5,824) 11,864 121,119

Total Transmission Substations 124,044 (5,681) 12,294 130,657

354 Towers and Fixtures 19,614 (202) 5,045 24,456355 Poles and Fixtures 20,707 3,172 2,539 26,418356 Overhead Conductors & Devices 25,205 (3,493) 4,182 25,894357 Underground Conduit 825 14 - 839358 Underground Conductors & Devices 5,850 19 (356) 5,512359 Roads and Trails 727 (74) - 654

Total Transmissions Lines 72,927 (564) 11,410 83,773Total Transmission Plant 199,443 (6,245) 23,704 216,902

DISTRIBUTION PLANT360.2 Easements 939 - - 939

361 Structures and Improvements 13,979 (690) - 13,289362 Station Equipment 55,120 (2,448) 5,064 57,736

Total Distribution Substations 70,038 (3,138) 5,064 71,964

364 Poles, Towers and Fixtures 116,845 (3,300) 15,751 129,296365 Overhead Conductors & Devices 55,120 1,422 5,094 61,636366 Underground Conduit 30,015 (2,215) 6,215 34,015367 Underground Conductors & Devices 147,468 (1,329) 25,666 171,806368 Line Transformers 111,213 (16,854) 24,399 118,758369 Services 55,790 (4,514) 16,191 67,467370 Meters 47,549 (406) - 47,142373 Street Lighting & Signal Systems 20,577 333 4,950 25,860

Total Distribution Lines 584,576 (26,862) 98,265 655,979Total Distribution Plant 654,614 (30,000) 103,329 727,943

Total Transmission and Distribution 854,057 (36,245) 127,033 944,845






T r a n s m is s io n a n d D i s t r i b u t i o n C o m p o s i t e R a te C a lc u la t io n s



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Figu

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II-4



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S a n O n o f r e N u c le a r G e n e r a t in g S t a t io n

M a t e r i a l s & S u p p l ie s R e c o r d e d B a la n c e

Y e a r - E n d 2 0 1 2



SONGS M&S Inventory(Nominal 2012 EOY Balance, SCE Share)(000)

Storage Location Description Company Code Amount

SONGS K-60 2001 50SONGS - MAIN 2001 26,044SONGS 2001 58SONGS K-60 2002 2,598SONGS - MAIN 2002 86,974SONGS REFURBISHM 2002 8,157Total 123,881

Particiapant ShareSCE (2001) (3,090)EMS (2002) (20,309)

SONGS - SCE Share 100,482


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