Proceeding No.:
Exhibit No.:
Witness:
R.12-06-013
SCE-119A
R. Garwacki
(U 338-E)
Corrected Workpaper for Table V-11 “Cost
Breakdown for Typical SCE Residential Customer”
Before the
Public Utilities Commission of the State of California
Rosemead, California
November 24, 2014
Filed and Settled Customer Marginal Costs ‐ 2012 GRC Phase II
Marginal Customer Cost
Final Line Transformer (FLT)
Service Drop
Meter & Panel
Cust Service
Total $/ Customer ‐ Month
SCE Filed RECC
2012 Phase 2
$4.2
$4.0
$2.2
$2.9
$13.3
TURN Filed NCO
2012 Phase 2
$0.8
$0.8
$0.4
$2.5
4.5 (1)
Monthly RECC
2012 Phase 2 $3.7
$3.5
$2.0
$2.9
12.1 (2)
Monthly NCO
2012 Phase 2 $1.7
$1.7
$0.8
$2.9
7.18 (2)
2012 GRC Phase 2
35.3%
Jan 2013
3.5%
Jan 2014
2.2%
50:50 NCO:RECC Revenue Allocation Settlement
2012 Phase 2 $2.7
$2.6
$1.4
$2.9
9.6 (3)
EPMC Scalars
Equal Percent of Marginal Cost (EPMC) Scalars
Customer Charge by Component
Scaled Charge Component
Charge Component
Final Line Transformer (FLT)
Service Drop
Meter & Panel
Cust Service
Total $/ Customer ‐ Month
Note: 2012 dollars and annualized
Monthly RECC Customer Costs (2012$)
$3.7
$3.5
$2.0
$2.9
12.1 (2)
2012 GRC Phase 2
$5.0
$4.8
$2.6
$4.0
$16.4
Jan 2013
$5.2
$4.9
$2.7
$4.1
$16.9
Jan 2014
$5.3
$5.0
$2.8
$4.2
$17.3
(1) ‐ $53.94/12 months. See Table 5 (page 21) of Prepared Testimony of Garrick F. Jones and William B. Marcus on behalf of TURN, SCE 2012 Test Year General Rate Case Phase II (CPUC App. A.11‐06‐007). (2) ‐ See Table RA‐3 on Page 12 of Marginal Cost and Revenue Allocation Settlement Agreement in SCE's 2012 Test Year General Rate Case Phase II (CPUC App. A.11‐06‐007). (3) ‐ Settlement values used for class revenue allocation purposes only ‐ not precedential for rate design purposes.
2012 GRC Phase 2, Distribution Marginal Cost ‐ TURN
Voltage Level
TURN Distribution Marginal Cost (without SCE's losses and Diversity Factors (EDFs) applied) $/MW‐ Year
TURN Distribution Marginal Cost (with SCE's losses and Diversity Factors (EDFs) applied) $/MW‐ Year
66 kV
$37.6
$12.81
12 kV and Below Total
$105.8
$35.73
$48.5
Residential Class Design Demand Marginal Cost Revenue Requirement (MCRR)
Sum of NCP Demands Max kW 25,729,116
Marginal Cost Revenue Requirement $1,248,651,574
Residential Forecasted Sales 2012 GRC Phase 2 kWh (Annual) 29,134,393,419
Forecasted Sum of Max kW (Annual) 197,969,647
Marginal Cost Rate $/kW ‐ Month
$6.3
2012 GRC Phase 2, Distribution Marginal Cost ‐ SCE
Voltage Level
SCE Distribution Marginal Cost (without SCE's losses and Diversity Factors (EDFs) applied) $/MW‐ Year
SCE Distribution Marginal Cost (with SCE's losses and Diversity Factors (EDFs) applied) $/MW‐ Year
66 kV
$33.7
$11.5
12 kV and Below Total
$83.9
$28.3
$39.8
Residential Class Design Demand Marginal Cost Revenue Requirement (MCRR)
Sum of NCP Demands Max kW 25,729,116
Marginal Cost Revenue Requirement $1,024,356,366
Residential Forecasted Sales 2012 GRC Phase 2 kWh (Annual) 29,134,393,419
Forecasted Sum of Max kW (Annual) 197,969,647
Marginal Cost Rate $/kW ‐ Month
$5.2
Notes:
(1) TURN Unit Marginal Distribution Costs from Page 29, Prepared Testimony of Garrick F. Jones and William B. Marcus on behalf of TURN, SCE 2012 Test Year General Rate Case Phase II (CPUC App. A.11‐06‐007)
(2) SCE Unit Marginal Distribution Costs Page 12 of Marginal Cost and Revenue Allocation Settlement Agreement, in SCE's 2012 Test Year General Rate Case Phase II (CPUC App. A.11‐06‐007). Example of Table V‐11 in Exhibit SCE 101
Billing Determinants used for the Average and No Load Scenarios
Average Monthly Usage (kWh)
Average Non Coincident Peak demand (kW)
Average coincident peak demand (kW)
Average Monthly Bill See Appendix A, SCE Exhibit 101
Marginal Cost by Function
Ancillary/ Balancing Services
Transmission $/kW ‐ Month
Distribution Services $/kW‐Month
Generation Capacity $/kW‐ Month (1) (2)
Customer Costs $/Customer ‐ Month
Fixed Charges for Average & No Load Scenarios
Ancillary/ Balancing Services
Transmission $/kW ‐ Month
Distribution Services $/kW‐Month
Generation Capacity $/kW‐ Month
Customer Costs $/Customer ‐ Month
Total Non Energy Charges for Customer (Monthly)
Fixed Charges for Average & No Load Scenarios
Ancillary/ Balancing Services
Transmission Systems ($/Month)
Distribution Services ($/Month)
Generation Capacity ($/Month)
Customer Costs ($/Month)
Total Non Energy Charges for Customer (Monthly)
Average Cust
589
5.5
2
$112
Low / No Load
0
2.1
0.4
$41
Scaled Charge Component
Jan‐14
SCE
Unit MC
TURN's Unit MC
$1.3
$4.9
$12.5
$17.3
$1.3
$5.2
$12.0
$12.1
$1.3
$6.3
$6.7
$4.5
Fixed Cost ‐ SCE
Average Cust
Low / No Load
$0
$0
$7
$3
$27
$10
$25
$5
$17
$17
$76
$35
% of Fixed Cost
Average Cust
No Load
0%
0%
9%
8%
36%
29%
33%
14%
22%
49%
100%
100%
SCE Method ‐ Fixed Cost ‐ TURN Example Inputs
% of Fixed Cost
Average Cust
Low / No Load
Average Cust
No Load
$0
$0
0%
0%
$7
$3
12%
12%
$35
$13
58%
57%
$13
$3
22%
12%
$4
$4
8%
20%
$60
$23
100%
100%
(1) SCE Unit Marginal Generation Capacity Cost of $114 From Page 9 of Marginal Cost and Revenue Allocation Settlement Agreement, in SCE's 2012 Test Year General Rate Case Phase II (CPUC App. A.11‐06‐007). This is adjusted for Resource adequacy (15%) and Line losses (9.75%) to amount to $143.9
(2) TURN Unit Marginal Generation Capacity Cost of $80.23 from Table 20, Page 60, Prepared Testimony of Garrick F. Jones and William B. Marcus on behalf of TURN, SCE 2012 Test Year General Rate Case Phase II (CPUC App. A.11‐06‐007)