Undergrounding Proceeding R-17-05-010 Staff Data Highlights

The presentation highlights data related to the undergrounding proceeding R-17-05-010, focusing on project details, costs, credit allocations, and community involvement. It includes information on the basic status of projects, project costs and credit allocation details for PG&E, SCE, and SDG&E, as well as background information on the data request process. The data presented covers the period from 2005 to present, with insights into active and inactive communities, work credit balances, and cost breakdowns per utility. Stay informed about the key highlights of this significant undertaking in the energy sector.

• Undergrounding Proceeding
• Project Costs
• Credit Allocation
• Community Involvement
• Energy Division

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1. Undergrounding Proceeding R.17-05-010 Phase I Workshop Staff Data Request Highlights Jonathan Frost Energy Division California Public Utilities Commission 1

2. Presentation Outline Introduction Background to the R.17-05-010 Data Request Data Request Highlights: I. Basic Details and Status of Projects II. Project Costs and Credit Allocations III. Expenditures and Unexpended Funds IV. Rule 20A Credit Trading V. Community Rule 20A Work Credits Redeemed VI. Work Credit Debt VII. Rule 20A Program Cost to Residential Customers VIII. Rule 20A Maps Questions & Answers 2

3. Background to Data Request 5.2.1 Preliminary Information from Electric Utilities of the R.17-05-010 OIR lists the basic items that the Commission seeks to gather. As part of this Order Instituting Rulemaking (OIR), we anticipate directing each electric utility to file and serve the following data for the 2005-2016 calendar years. This data will create a common baseline on the relevant issues identified in this rulemaking (OIR, p.16-18) In November 2017, Energy Division sent SCE, PG&E, SDG&E, Liberty Utilities, PacifiCorp and Bear Valley a comprehensive data request based on the outline in 5.2.1. The data CPUC Staff received is primarily for 2005 to present, with some data points dating back to the 1960s. 3

4. I. Basic Details and Status of Projects: PG&E 145 282 SCE 77 134 SDG&E 65 186 Total Projects Underway Total Projects Completed (2005-17) Total Communities Eligible Communities Ineligible Communities Active Communities*** Inactive Communities Total Work Credit Balance of Inactive Communities *Includes communities served by municipal utilities, and communities that are served by more than one IOU **The three ineligible communities in SDG&E are Aliso Viejo, Laguna Hills, and Mission Viejo ***Active communities are defined as communities that have formed an undergrounding district, and/or started or completed an undergrounding project within the past 8 years 266 All* None 174 92 $108,815,591 208 All* None 63 145 $88,348,414 27 24 3** 15 12 $16,630,018 4

5. II. Project Cost and Credit Allocations: Cost Per Distance 1. PG&E 1. Cost per distance: $650-$1,150 per ft ($3.4 M-$6.1M per mile) 2. Cost per median project (Half Mile or 5 blocks): $2,000,000 to $3,500,000 3. Cost per minimum project (600 feet or one block): $400,000 to $700,000 2. SCE 1. Cost per distance: $500-$750 per ft (or $2.6M to $4M per mile) 2. Cost per median project (Half Mile or 5 blocks): $1,500,000 to $2,250,000 3. Cost per minimum project: between $300,000 and $450,000 3. SDG&E 1. Cost per distance: $500-$700 per ft ($2.64M-$3.696M per mile) 2. Cost per median project (Half Mile or 5 blocks): $1,500,000 to $2,100,000 3. Cost per minimum project: $300,000 to $420,000 5

6. II. Project Cost and Credit Allocations: Cost Per Distance INFLATION-ADJUSTED PROJECT COST PER FOOT (2018 USD) $1,400 $1,200 $1,000 $800 $600 $400 $200 $0 2005 2006 2007 2008 2009 2010 2011 2012 2013 2014 2015 2016 2017 PG&E SCE SDG&E 6

7. II. Project Cost and Credit Allocations: Allocations 2019 Annual and Total Historical 2019 Rule 20A Annual Allocations Liberty Utilities $1.43 Million PacifiCorp $520,000 Bear Valley $0 PG&E $41.3 Million SCE $30.1 Million SDG&E* $28.7 Million Total2019Rule 20A Allocations $102 Million Total Rule 20A Allocations (1967-2019) Liberty Utilities $41.3 Million PacifiCorp $14.1 Million Bear Valley $0 PG&E $2.1 Billion SCE $1.52 Billion SDG&E $848.4 Million TotalRule 20A Allocations Since 1967 $4.6 Billion *SDG&E also allocated $1 Million in Rule 20D work credits, which are not included in this total 7

8. III. Expenditures and Unexpended Funds: Total Expenditures and Unexpended Funds for Conversion Since 1967-2018 Expenditures Unused, Uncommitted, Funds* PG&E $254 Million SCE $207.6 Million SDG&E ($79.1Million) Liberty $18.9 Million PacifiCorp $8.8 Million Bear Valley $0 Total $489.3 Million** PG&E $1.5 Billion SCE $1.2 Billion SDG&E $735.3 Million Liberty $20.1 Million PacifiCorp $4.2 Million Bear Valley $0 Total $3.4 Billion * There are $963.1 million unused funds in total, and $501.5 million are committed to projects underway. ** Excludes SDG&E since all unused funds are committed. 8

9. IV. Rule 20A Work Credit Trading Refers to buying, selling, loaning or gifting work credits. Not in the Rule 20A tariff and not condoned by the Commission. PG&E Credit Trading Beneficiaries $5,000,000.00 Value of Credits $4,500,000.00 $4,000,000.00 $3,500,000.00 $3,000,000.00 $2,500,000.00 $2,000,000.00 $1,500,000.00 1. Total Rule 20A work credits traded since 2005: $62.2 Million $1,000,000.00 $500,000.00 $- 2. PG&E: 44 transactions dating back to 2009 totaling $46,081,487 3. SCE: 27 transactions since 2008 totaling $13,026,453 SCE Credit Trading Beneficiaries $3,500,000 Value of Credits $3,000,000 $2,500,000 4. SDG&E: one trade in 2010 in which San Diego County loaned $2.9 million to the City of Vista for its East Vista Way project. $2,000,000 $1,500,000 $1,000,000 $500,000 $- 5. PacifiCorp: Siskiyou County transferred $250,000 to the City of Weed s 2016 Rule 20A project. 9

10. V. Community Rule 20A Work Credits Redeemed Community City and County of San Francisco City of San Diego Unincorporated Los Angeles County Unincorporated San Diego County City of Long Beach City of Oakland City of San Jose Unincorporated San Bernardino County City of Fresno City of Chula Vista Total Work Credit Expenditures $174,194,533 $123,959,969 $80,199,098 $66,219,539 $66,113,635 $59,290,182 $54,445,341 $38,824,162 $ 34,846,837 $30,601,828 1 2 3 4 5 6 7 8 9 10 10

11. V. Community Rule 20A Work Credits Redeemed (Cont.) SDG&E Value of Credits Redeemed (2005-2017) $140,000,000 $120,000,000 $100,000,000 SDG&E Communities That Have Not Completed a Project Since 2005 Dana Point Laguna Beach Mission Viejo $80,000,000 $60,000,000 $40,000,000 $20,000,000 $- 11

12. V. Community Rule 20A Work Credits Redeemed (Cont.) PG&E Communities That Have Not Completes Any Projects Since 2005 ALPINE COUNTY ATHERTON BIGGS BLUE LAKE BRISBANE BUELLTON CALISTOGA CLOVERDALE CORCORAN DOS PALOS FOSTER CITY IONE LAKEPORT LASSEN COUNTY LIVINGSTON MARICOPA MARYSVILLE MENDOTA MENLO PARK MONTE SERENO OAKLEY PLYMOUTH POINT ARENA ROSEVILLE SACRAMENTO COUNTY SAN BENITO COUNTY SAN BRUNO SAN JOAQUIN SAN JUAN BAUTISTA SARATOGA SHASTA LAKE SIERRA COUNTY SISKIYOU COUNTY SOLEDAD SUTTER CREEK TEHAMA WHEATLAND WILLIAMS PG&E Value of Credits Redeemed by Unincorporated Counties (2005-17) $25,000,000 $20,000,000 $15,000,000 $10,000,000 $5,000,000 $- PG&E Value of Credits Redeemed by Cities (2005-17) $200,000,000 $180,000,000 $160,000,000 $140,000,000 $120,000,000 $100,000,000 $80,000,000 $60,000,000 $40,000,000 $20,000,000 $- 12

13. V. Community Rule 20A Work Credits Redeemed (Cont.) SCE Communities that Have not Completed a Project Since 2005 Aliso Viejo Anaheim Banning Calabasas Colton Eastvale Glendale Goleta Grand Terrace Jurupa Valley Laguna Hills Laguna Niguel Laguna Woods Los Angeles, City of Menifee Pasadena Rancho Santa Margarita Riverside, City of Unincorporated Imperial Unincorporated Madera Unincorporated San Diego Unincorporated Tuolomne Wildomar Yucca Valley SCE Value of Credits Redeemed by City (2005-2017) $70,000,000.00 $60,000,000.00 $50,000,000.00 $40,000,000.00 $30,000,000.00 $20,000,000.00 $10,000,000.00 $0.00 13

14. VI. Work Credit Debt 57 communities across the State have work credit debt and are unable to participate in the program. Years in Work Credit Debt Community Utility 2019 Allocation 2019 Balance Chino Hills NAPA COUNTY FIREBAUGH ANDERSON San Marcos RIVERBANK La Canada-Flintridge SCE BELVEDERE ANGELS CAMP HILLSBOROUGH Manhattan Beach Laguna Hills CAMPBELL FOWLER Brea SAN FRANCISCO ATWATER MILL VALLEY Irwindale Malibu SCE PG&E PG&E PG&E SDG&E PG&E $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ 10,204 152,605 17,599 40,122 6,200 35,243 76,772 6,036 16,682 28,109 167,484 1,833 162,665 16,848 76,795 2,970,435 68,848 61,858 10,237 39,702 $ (893,909) (11,331,024) $ (989,237) $ (2,016,864) $ (296,131) $ (1,653,339) $ (3,465,161) $ (262,373) $ (624,828) $ (861,117) $ (4,028,934) $ (38,559) $ (2,911,057) $ (269,867) $ (1,222,996) $ (42,687,251) $ (875,490) $ (674,340) $ (103,365) $ (381,408) $ 88 74 56 50 48 47 45 43 37 31 24 21 18 16 16 14 13 11 10 10 Communities with highest levels of work credit debt shown to the right. PG&E PG&E PG&E SCE SDG&E PG&E PG&E SCE PG&E PG&E PG&E SCE SCE 14

15. VII. Rule 20A Program Cost to Residential Customers 1. PG&E: Estimated at $9.46 per customer in 2017. 2017 revenue requirement for projects installed from 1968 through 2017: Total plant additions (1968 through 2017): $1.4 billion 2017 Rate Base: $428 million (plant in service less accumulated depreciation and deferred taxes) 2017 Revenue Requirement: $90.8 million Total number of customers: 5.47 million 2017 Revenue Requirement per customer (average): $16.60 Revenue Requirement allocated to residential class: $45.4 million (before CARE reallocation) Number of residential customers: 4.80 million 2017 Revenue Requirement per residential customer (average): $9.46 15

16. VII. Rule 20A Program Cost to Residential Customers (Cont.) 2. SDG&E: Annual gross cost to residential customers Nominal $ $18,785,658.00 Annual cost to average residential customer Annual cost to average customer Annual gross cost to customers Year Date 2017 Nominal $ $12.65 Nominal $ $16.86 Nominal $ $25,047,544.00 Note: Approximately 72 77% of residential customers contribute to Rule 20A project funds within each municipality. This ratio was applied to the allocations for each year to calculate the average annual residential costs shown here. 16

17. VII. Rule 20A Program Cost to Residential Customers (Cont.) 3. SCE: (IX.) SCE Cost of Rule 20 A Program per Residential Customer Annual gross cost to residential customers (as SCE reported to Jonathan) Nominal $ 34,825,452 $ Percent of Total Annual Cost that annual gross cost to residential customers represents (Column G/I shown as a %) Total Annual cost (from Completion Reports, Line 5) Total non- residential customers (e.g. C&I customers) Monthly cost per average residential customer Annual cost per average residential customer Number of Residentia l Electrical Meters Total residential customers Year Date 2017 Nominal $ $0.66 Nominal $ $7.92 Nominal $ 226% Nominal $ 15,414,956 $ Number 4,397,153 Number 679,897 4,397,153 17

18. VIII. Rule 20A Maps 18

19. Questions & Answers 19

20. Thank You! Jonathan Frost CPUC jf6@cpuc.ca.gov 415-703-5412 20

21. Additional Slides 21

22. SCE Value of Credits Redeemed by Unincorporated Counties (including LA County) (2005-2017) $90,000,000 $80,000,000 $70,000,000 $60,000,000 $50,000,000 $40,000,000 $30,000,000 $20,000,000 $10,000,000 $- SCE Value of Credits Redeemed by Unincorporated Counties (Excluding LA County) (2005-2017) $45,000,000 $40,000,000 $35,000,000 $30,000,000 $25,000,000 $20,000,000 $15,000,000 $10,000,000 $5,000,000 $- 22

23. VI. Rule 20A Program Cost to Residential Customers 2. SDG&E: (IX.) SDG&E Cost of Rule 20 A Program for Residential Customers Annual gross cost to residential customers Nominal $ $18,785,658.00 $19,533,081.00 $18,292,628.25 $16,952,933.25 $18,470,869.50 $17,846,808.75 $17,758,015.50 $18,027,976.50 $16,521,804.00 $17,046,691.50 $15,463,686.00 $14,018,151.75 $14,542,416.75 Annual cost to average residential customer Annual cost to average customer Annual gross cost to customers Year Date 2017 2016 2015 2014 2013 2012 2011 2010 2009 2008 2007 2006 2005 Nominal $ $12.65 $13.15 $12.22 $11.41 $12.65 $12.23 $12.17 $12.88 $12.11 $12.49 $11.42 $10.79 $11.19 Nominal $ $16.86 $17.53 $16.29 $15.21 $16.87 $16.30 $16.22 $17.17 $16.14 $16.65 $15.22 $14.38 $14.92 Nominal $ $25,047,544.00 $26,044,108.00 $24,390,171.00 $22,603,911.00 $24,627,826.00 $23,795,745.00 $23,677,354.00 $24,037,302.00 $22,029,072.00 $22,728,922.00 $20,618,248.00 $18,690,869.00 $19,389,889.00 Note: Approximately 72 77% of residential customers contribute to Rule 20A project funds within each municipality. This ratio was applied to the allocations for each year to calculate the average annual residential costs shown here. 23

24. VI. Rule 20A Program Cost to Residential Customers 3. SCE: (IX.) SCE Cost of Rule 20 A Program per Residential Customer Annual gross cost to residential customers (as SCE reported to Jonathan) Nominal $ 33,460,749 $ 34,825,452 $ 40,355,543 $ 40,013,241 $ 40,891,033 $ 39,540,673 $ 39,137,990 $ 38,925,105 $ 40,923,407 $ 37,971,235 $ 37,155,291 $ 36,276,835 $ 33,732,953 $ 31,819,323 $ Percent of Total Annual Cost that annual gross cost to residential customers represents (Column G/I shown as a %) Total Annual cost (from Completion Reports, Line 5) Total non- residential customers (e.g. C&I customers) Monthly cost per average residential customer Annual cost per average residential customer Number of Residentia l Electrical Meters Total residential customers Year Date 2018 2017 2016 2015 2014 2013 2012 2011 2010 2009 2008 2007 2006 2005 Nominal $ $0.63 $0.66 $0.77 $0.77 $0.79 $0.77 $0.77 $0.76 $0.81 $0.75 $0.74 $0.72 $0.68 $0.65 Nominal $ $7.56 $7.92 $9.24 $9.22 $9.48 $9.22 $9.18 $9.17 $9.68 $9.04 $8.88 $8.70 $8.14 $7.80 Nominal $ 137% 226% 119% 92% 174% 189% 112% 70% 582% 675% 82% 85% 84% 66% Nominal $ 24,434,672 $ 15,414,956 $ 33,912,667 $ 43,490,570 $ 23,519,929 $ 20,963,967 $ 35,029,268 $ 55,219,092 $ 7,034,856 $ 5,622,122 $ 45,563,006 $ 42,704,093 $ 40,347,742 $ 48,058,889 $ Number 4,426,025 4,397,153 4,367,483 4,338,761 4,312,953 4,287,273 4,261,598 4,242,791 4,225,677 4,201,161 4,184,346 4,170,974 4,141,709 4,081,885 Number 682,097 679,897 678,111 675,456 673,511 672,595 670,834 670,207 668,693 666,828 665,087 664,199 656,743 646,974 4,426,025 4,397,153 4,367,483 4,338,761 4,312,953 4,287,273 4,261,598 4,242,791 4,225,677 4,201,161 4,184,346 4,170,974 4,141,709 4,081,885 24