Summary of Proposed Projects for SVP System Growth Strategy
Description Indicative Cost
($M)
Estimated Duration
(Design &
Construction)
1 Re-conductor 0.2 miles, 115 kV transmission line
connecting Duane and Scott Receiving Station (SRS)
substations.
$0.940-$1.62 30 months
2 Install two additional 115/60 kV 300 MVA auto
transformers at NRS (TA, TD). Upgrade NRS 115 kV and
60 kV bus to mitigate various P2 contingencies identified du to main/transfer bus design. Options include Double- Bus-Double-Breaker (DBDB), Breaker-and-A-Half
(BAAH), or Ring Bus (RB) configurations. Budget to be
added to existing CIP 2454.
$39.28 36 monhts
3 Addition of third NRS 230/115 kV 500 MVA
autotransformer and balance of plant for interconnection of new CAISO 500 MVA 230kV AC line interconnection at
NRS. Budget to be added to CIP 2430.
$7.27 -
4 Approved CIP 2431 “Homestead Substation Rebuild” will upgrade breakers and disconnects to 3000 amp rating in Q4, 2027
- 36 months
5 Re-conductor 3.54 miles of 60 kV transmission line
connecting the Homestead Substation and Scott Receiving Station (SRS).
$8.05-$11.97 22 months
6 Re-conductor 0.62 miles of 60 kV transmission line
connecting the Laurelwood Substation and Kifer Receiving Station (KRS) Substations
$1.4-$3.05 22 months
7 Build 5.89 miles of 60 kV transmission line to build New Loop 1 (overhead). $56.4-$76.271 48 months
8 Build 6.98 miles of 60 kV transmission line to build New Loop 2 (overhead). $66.8-$97.07 48 months
9 Study Var and Voltage mitigation technologies and develop implementation plan. $1.5 10 months
10 Study PST overloading mitigations identified in Table 5-37 Contingency Analysis Thermal Violation; PG&E for short
term Operation Procedures and long term mitigation solution that can include but not limited to installing a 2 PST at SSS, in addition to Transmission Access Charge (TAC) impacts. $0.250 10 months
Total (Range) $152,140,000 - $238,280,000
1Approved budget for project CIP -2459 will be absorbed into newly -proposed project (Items 7)