Stamp 345 kV - Station Design and Grid Interconnection

The GCEDC Stamp 345 kV electric substation project deliverables included:

Researching and developing the necessary line/breaker/bus/transformer design configuration for a new exceptionally reliable NERC/NPCC compliant 500 MVA 345/115 kV load station.
Preparing the client's formal Interconnection Request to the NYISO. Attending numerous NYISO meetings to facilitate the stations movement through each step of the interconnection process, including an initial meeting with affected transmission owners regarding its proposed design.
Obtaining Regulatory Approval - in December 2018, the Operating Committee accepted the NYISO-conducted System Impact Study recommendation that Stamp Station could connect to the New York State 345 kV transmission grid with a total peak approved load of 450 MW.
Subsequent to interconnection approval, engaged with senior engineering executives at the NY Power Authority (the Connecting Transmission Owner) and successfully obtained their formal acceptance of the station's design, i.e., the basic bus/breaker/line/transformer configuration, for connection to the NYPA system.
Assisted the client throughout a bid and selection process to select a nationally ranked engineering firm to complete the station's baseline engineering design.

Professional services by ROBERT R. GAGE, PE, P.C. included:

Determining the fundamental station design - the bus/breaker/transformer layout - that would achieve the electric capacity, quality and reliability required by the client; have no adverse impact on 345 kV system operation or reliability; and facilitate sequential re-routing of the CTOs' 345 kV lines through the station - with no aerial conductor crossings - accomplished using a series of T-line outages. The design consisted of twelve 345 kV breakers arranged in four, hybrid-breaker and a half bays between two buses. Two of the four bays contained two 345 kV transmission line termination positions and the other two contained one 345/115 kV power transformer.
Modeled the 345 kV system between Niagara and Rochester to calculate peak, asymmetrical and symmetrical fault current values and determine equipment interrupting ratings.
Preparing the Developer’s formal Interconnection Request to NYISO.
Determining the transformer rating data and preparing the station single line diagram for review by the affected utilities and use in the NYISO System Impact Study.
Representing the client during each stage of the 12 month system impact study process, including frequent email exchanges and various technical teleconferences and meetings with NYISO and the affected NY and Ontario utility companies, as well as attending multiple in person meetings of the Transmission Planning Advisory Subcommittee and the Operating Committee.
Engaged senior engineering executives at the NY Power Authority (CTO) and successfully received their formal acceptance of the station's basic bus/breaker/line/transformer design for connection to the their system.
Assisted the client with design bid solicitation, bid evaluation, and made recommendations resulting in the selection of a top U.S. high-voltage design firm for baseline engineering.
Represented the clients' interests during that baseline engineering work.