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DC Tie Viewer


ERCOT EAST

The ERCOT East DC tie has been returned to normal operations.
OUTAGE UPDATE
Updated at 6/7/2024 11:46:27 AM – The ERCOT EAST DC Tie has been returned to normal operation.

History

ERCOT NORTH

OUTAGE UPDATE
Updated at 4/28/2024 10:06:00 PM – The ERCOT NORTH DC Tie has been returned to normal operation.

History

WSCC EDDY Co.

El Paso Electric has posted a Business Practice on the EPE OASIS regarding operation of the Eddy County HVDC tie. Customers requesting transmission service under the SPP OATT for service up to or out of the Eddy HVDC tie are responsible for reading and understanding this EPE Business Practice. The customer should also understand that any transmission service charges for reservations under the SPP OATT up to or out of the EDDY HVDC tie will not be forgiven when the Eddy HVDC tie becomes inoperable due to this EPE Business Practice. Questions related to the EPE Business Practices or status of the Eddy HVDC Tie due to this Business Practice should be directed to the EPE OASIS or EPE Staff.

OUTAGE UPDATE
Updated at 1/4/2024 4:12:57 AM – The WSCC EDDY Co. DC Tie has been returned to normal operation.

History

WSCC BLACKWATER

The WSCC Blackwater DC Tie has returned to normal operations.
OUTAGE UPDATE
Updated at 5/29/2024 9:56:02 AM – The WSCC BLACKWATER DC Tie has been returned to normal operation.

History

LAMAR

OUTAGE UPDATE
Updated at 6/5/2024 1:40:23 PM – The LAMAR DC Tie has been returned to normal operation.

History

MILES CITY

OUTAGE UPDATE
Updated at 5/9/2024 8:06:42 AM – The MILES CITY DC Tie has been returned to normal operation.

History

STEGALL

Transmission service across the Stegall HVDC Tie is administered by WAPA. SPP administers service to and from the Eastern terminal of this tie. Information provided here represents status of the HVDC Tie and outage information as communicated to SPP.
OUTAGE UPDATE
Updated at 5/24/2024 6:24:12 AM (CD) - The STEGALL DC Tie in both directions will be limited to 0 as a result of a planned maintenance outage from 9/25/2023 8:00:00 AM (CD) to 12/31/2024 12:00:00 PM (CD).

History

SIDNEY

Transmission service across the Sidney HVDC Tie is administered by WAPA. SPP administers service to and from the Eastern terminal of this tie. Information provided here represents status of the HVDC Tie and outage information as communicated to SPP.
OUTAGE UPDATE
Updated at 6/3/2024 10:37:47 AM (CD) - The SIDNEY DC Tie in both directions will be limited to 0 as a result of an unplanned maintenance outage from 5/2/2024 3:00:00 PM (CD) to 7/15/2024 6:00:00 PM (CD).

History

RAPID CITY NON-DC TIE INJECTION POINT

Transmission service across the Rapid City HVDC Tie is administered by Black Hills Power. SPP administers service to and from the Eastern terminal of this tie (RCEASTINJ). Information provided here represents status of the Eastern terminal of the Rapid City DC Tie as communicated to SPP. .The RCEASTINJ in both directions will be limited to 0 as a result of a planned maintenance outage from 10/28/2024 09:00:00 AM (CS) to 12/19/2024 18:00 AM (CS).
OUTAGE UPDATE
Updated at 6/3/2024 10:39:13 AM (CD) - The RAPID CITY NON-DC TIE INJECTION POINT DC Tie from west to east will be limited to 125 as a result of an unplanned maintenance outage from 5/2/2024 3:00:00 PM (CD) to 7/15/2024 6:00:00 PM (CD).

History

SASK POWER (SPC) NON-DC TIE INJECTION POINT

Transmission service across the SPP/SPC interface (at Boundary Dam substation on the Boundary Dam-Tioga 230kV line) is administered by SaskPower north of Boundary Dam, and by SPP south of Boundary Dam. Information provided here represents status of the SPP/SPC interface south of Boundary Dam substation (i.e. SPP Flowgates “SPC_EXP” (South-to-North) and “SPC_IMP” (North- to-South)), and outage or limitation information on the SPP Transmission System as communicated to SPP. There are Standing Operating Guides in place that outline reliability limitations that may occur during high western North Dakota load conditions (i.e., in the Bakken oil field area) or during contingency situations (e.g., outages). WAPA-UGP, as the Transmission Operator, coordinates the Operating Guides with SPP. The Operating Guides identify limitations to the North-to-South and South-to-North flows on the Boundary Dam-Tioga 230kV line. WAPA-UGP posts public information about historical, current, and forecasted load in the Bakken area utilized in the Operating Guides. This can be found on WAPA-UGP’s OASIS Homepage under ‘System Information’ > ’Williston Load Pocket Information’. WAPA-UGP and SPP periodically update the Operating Guides to reflect network upgrade additions to the SPP Transmission System in the Bakken area, and SPP continues to release Non-Firm ATC on the South-to-North “SPC_EXP” flowgate, to the extent possible, based upon the current Operating Guides. SPP has authorized significant additional transmission reinforcements in, or around, the Bakken area, to address reliability needs identified in its recent Integrated Transmission Planning (ITP) process studies. More information related to the transmission limitations in the Bakken area that are currently impacting the ATCs on the SPP/SPC interface can be found on SPP’s website.

OUTAGE UPDATE
Updated at 3/13/2024 4:58:40 PM – The SASK POWER (SPC) NON-DC TIE INJECTION POINT DC Tie has been returned to normal operation.

History