Completion Date: 2009
Client: NextEra Energy
Dashiell provided an EPC turnkey project for a 345kV – 138kV substation as part of the Horse Hollow Generation Tie Project. The station consisted of a 2 breaker 345kV tap substation with a single incoming line, two (2) 555MVA 345kV – 138kV transformers and a 3 bay 138kV breaker and a half substation. The switchyard was designed as an interconnect point for the operation of a 1000MW wind park in Kendall County. 100% of the design for this station was by Dashiell, including site grading, structures, foundations, conduit, grounding, lightning protection, station lighting, control building layout and specification, electrical plans and section, installation details, protection and control single line drawings, schematics and wiring, communications/SCADA, relay control panels, relay coordination settings, and equipment specifications. Due to the critical nature of this project, Dashiell completed design and construction in 9 months, from notice to proceed.
230kV Interconnect Switchyard 230/34.5kV Collection Substation 230kV Transmission LineView Project
One 230kV, 2000A gas circuit breaker One 230kV/34.5kV 75/100/125 MVA power transformer Five 38kV, 1200A vacuum circuit breakers Two 34.5kV 10 MVAR capacitor banksView Project
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