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Accepting bidstenderSouth Africa

To provide professional services to investigate potential subsurface instability in the vicinity of the NTCSA Vulcan Substation

Issued by Eskom National Transmission Company of South Africa · via eTenders — South Africa (National Treasury)

Published
28 Aug 2026
Closes
9 Oct 2026, 08:00 UTC
Reference
E3436NTCSANEG
Location
South Africa
Sector
Energy & Power

Details

To provide professional services to investigate potential subsurface instability in the vicinity of the NTCSA Vulcan Substation

Buyer: Eskom National Transmission Company of South Africa.

Category: Services: Professional.

Procurement method: Request for Bid(Open-Tender).

Province: National.

Delivery location: Corner Jellico and Water Meyer Street-Witbank, Eskom Park-North Eastern Region-1035.

Briefing session: non-compulsory, 16 September 2026 11:00, at Vulcan Substation Witbank.

Special conditions: Adress link: https://maps.app.goo.gl/nPJR21SuEyERUUJ18?g_st=ac

Electronic submission accepted.

Published: 28 August 2026.

Closing date: 09 October 2026 10:00 (South African time).

Tender documents:

- SCOPE OF WORK.pdf - Copy of 240-43921804 Environmental Management Tender Returnable Vulcan Sinkholes.xls - Annexure B-to be completed and signed.pdf - 1.01_NTCSA Invitation_to_Tender_(ITT)_ eTendering Template- Vulcan sinkhole (003).pdf - NEC PSC.pdf - eTendering_Supplier's User_Guide_v4.4.pdf - 240-126469599_Method Statement template final 18 Oct2021.docx - SHE Specification -Vulcan Sinkhole Investigation Project.pdf - TENDER EVALUATION STRATEGY - VULCAN DETAILED UNDERGROUND FIRES INVESTIGATION SIGNED.pdf - BOQ.pdf - Sinkhole Investigation_BRA.xlsx - NTCSA Non-Disclosure Agreement (NDA) Vendors_.pdf - SDL&I Inputs Instability in the vicinity of the NTCSA Vulcan Substation.pdf - 240-12248652_List of Tender Returnables_Cat 4_ Rev 7 - Investigate subsurface instability at Vulcan Substation.pdf - 240-68099512 Form A_Cat 4_ Rev 9 - Investigate subsurface instability at Vulcan Substation.pdf - NTCSA Supplier Declaration of Interest.docx - NTCSA - Annexure T 1 OHS Tender Evaluation Template (High risk)- Sinkhole Investigation Project.pdf - 240-105658000 Supplier Quality Management Specification (3).pdf

Source: National Treasury eTenders portal (www.etenders.gov.za); the same notice is published as Open Contracting (OCDS) data.

Context for bidders

We hold 12 notices from Eskom National Transmission Company of South Africa, going back to July 2026 — 12 of them still open. They buy mostly in Energy & Power, Real Estate & Facilities and Education & Training. There are 98 open Energy & Power tenders in South Africa. This one closes in 13 days.

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Documents

  • SCOPE OF WORK.pdfDownload (pdf)
  • Copy of 240-43921804 Environmental Management Tender Returnable Vulcan Sinkholes.xlsDownload (xls)
  • Annexure B-to be completed and signed.pdfDownload (pdf)
  • 1.01_NTCSA Invitation_to_Tender_(ITT)_ eTendering Template- Vulcan sinkhole (003).pdfDownload (pdf)
  • NEC PSC.pdfDownload (pdf)
  • eTendering_Supplier's User_Guide_v4.4.pdfDownload (pdf)
  • 240-126469599_Method Statement template final 18 Oct2021.docxDownload (docx)
  • SHE Specification -Vulcan Sinkhole Investigation Project.pdfDownload (pdf)
  • TENDER EVALUATION STRATEGY - VULCAN DETAILED UNDERGROUND FIRES INVESTIGATION SIGNED.pdfDownload (pdf)
  • BOQ.pdfDownload (pdf)
  • Sinkhole Investigation_BRA.xlsxDownload (xlsx)
  • NTCSA Non-Disclosure Agreement (NDA) Vendors_.pdfDownload (pdf)
  • SDL&I Inputs Instability in the vicinity of the NTCSA Vulcan Substation.pdfDownload (pdf)
  • 240-12248652_List of Tender Returnables_Cat 4_ Rev 7 - Investigate subsurface instability at Vulcan Substation.pdfDownload (pdf)
  • 240-68099512 Form A_Cat 4_ Rev 9 - Investigate subsurface instability at Vulcan Substation.pdfDownload (pdf)
  • NTCSA Supplier Declaration of Interest.docxDownload (docx)
  • NTCSA - Annexure T 1 OHS Tender Evaluation Template (High risk)- Sinkhole Investigation Project.pdfDownload (pdf)
  • 240-105658000 Supplier Quality Management Specification (3).pdfDownload (pdf)

Before you bid on this tender

A quick checklist to help you decide whether to bid and prepare a compliant submission for this energy & power opportunity. Always verify the details on the official source.

  • Confirm the exact closing date and time (and time zone) on the official portal — deadlines are strict and can be revised by a corrigendum.
  • Read the full notice and every attached document, including the scope, specifications and any bill of quantities or terms of reference.
  • Check the eligibility criteria — prior similar experience, annual turnover, certifications and registrations — and make sure you qualify before investing effort.
  • Prepare any earnest-money deposit (EMD) or bid security and the required formats early; missing or wrongly-formatted documents are a common cause of rejection.
  • Note how bids must be submitted (online or physical), in what format, and whether a digital signature or portal registration is required.
  • Watch for corrigenda and clarifications right up to the deadline — requirements and dates can change.

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