REPORT TO COUNCIL
SUBJECT
Title
Action to Authorize the City Manager to Negotiate and Execute Agreements and/or Amendments to Existing Agreements as Required to Complete Unanticipated Internal Inspection and Re-rate Engineering Study for Transformer Upgrades at the Kifer Receiving Station (KRS) and Scott Receiving Station (SRS) and Approve Related Budget Amendment
Report
BACKGROUND
The City of Santa Clara's Electric Utility, Silicon Valley Power (SVP), imports electric power generated outside of Santa Clara using PG&E interconnections primarily at three receiving substations within the City limits: Kifer Receiving Station (KRS), Scott Receiving Station (SRS), and Northern Receiving Station (NRS). These stations use multiple transformers to lower voltage from 115kV to 12kV. In addition, SVP's distribution substations use transformers to step down sub-transmission (60kV) voltage to distribution level (12kV). Most of the power from PG&E transmission lines pass through six (6) large transformers, each with a 115kV/60kV 186MVA capacity, installed at NRS, KRS and SRS (two transformers per station).
As part of the several rebuild projects included in SVP's system expansion plan, new 115kV/60kV 336MVA transformers will be installed at the three stations - two (2) transformers each at KRS and SRS and three (3) transformers at NRS. Until those projects are complete, the existing 115kV/60kV 186MVA transformers need to handle the increased demand.
SVP continues to explore options for providing additional power to serve existing and future customers and will study the feasibility of re-rating the existing115kV/60kV 186MVA transformers at KRS and SRS. This request is a result of the continuous growth of SVP's electric load and supply chain issues affecting the re-build of NRS, KRS and SRS. The projected dates for energization/in-service of NRS, KRS, and SRS rebuilds are in fiscal year 2027/2028. Between now and the energization date for these receiving stations, sta...
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