Transformer Rewind and Refurbishment for Eskom.
Eskom
In plain English
Eskom is procuring the full rewind of transformers at Sere Substation, Uitkyk, Matla Overland, and Kriel PS. Eligibility requirements are not explicitly stated in the text.
Always check the official documentDescription
Eskom Holdings SOC Ltd invites tenders for the full rewind and refurbishment of various transformers, including units at Sere Substation (2.6 MVA), Uitkyk (20 MVA), Matla Overland (5 MVA), and Kriel Power Station (5 MVA). The contract duration is six months. The scope includes logistics, technical redesign, manufacturing of windings, active part assembly, oil filling, and final testing. Bidders must demonstrate technical capability in transformer engineering, vapour phase drying, and specialized electrical testing. The project is governed by the NEC3 Term Service Contract. A non-compulsory clarification meeting is scheduled for 22 September 2026 via MS Teams. The tender closing date is 06 October 2026 at 10:00.
What you need to qualify
- CSD registration — Registration on the Central Supplier Database — required to do business with government.
- Letter of Good Standing — COID registration and a Letter of Good Standing from the Compensation Fund.
- Other registration — An industry registration the tender requires (e.g. PSIRA, NHBRC, a professional or trade licence).
Full requirements
- Must hold valid ISO 9001 certification or documented QMS evidence
- Must be registered on the National Treasury Central Supplier Database (CSD)
- Must possess a valid COIDA Letter of Good Standing
- Must own or have access to specified workshop, crane, and testing facilities
- Key personnel must hold relevant professional registrations (e.g., SACPCMP)
Contact & how to apply
Name: Zenie Bota
Email: botaiz@eskom.co.za
Phone: 011-629-4414
How to apply: Tenders must be submitted electronically via the Eskom E-tendering portal at https://tenderbulletin.eskom.co.za/. Documents must be uploaded in PDF format into the designated Technical, Commercial, and Financial folders. No hard copies or compressed files are accepted.
Related tenders
Refurbishment of Electrical Systems at Eskom Facility.
Eskom Holdings SOC Ltd seeks tenders for refurbishing and upgrading electrical protection systems at the Eskom Research Corona Cage Test Facility in Sunninghill. The project includes design, engineering, manufacturing, testing, delivery, installation, commissioning, and training. Key tasks involve a new 110V DC supply system, relocating monitoring panels, and installing low-voltage protection, control, and communication cabling. The project requires adherence to high-voltage safety standards and compliance with IEC 60255 and IEC 61850. The contract duration is twelve months, with submissions closing on 08 October 2026 at 10:00 SAST.
Supply and Commissioning of Power Transformers.
Eskom Holdings SOC Ltd invites tenders for the design, engineering, manufacturing, testing, supply, delivery, installation, and commissioning of Class 1 Power Transformers on an 'as and when' required basis over five years for the Distribution Division. The project includes lifecycle management of transformers from 1MVA to 160MVA (11kV to 132kV), adherence to technical specifications, and factory capability assessments. Successful bidders will enter a closed competitive RFQ process for specific orders.
Supply and Delivery of Power Transformer for ELIDZ.
The East London Industrial Development Zone (ELIDZ) invites tenders for the supply and delivery of a 40MVA power transformer and associated electrical equipment for the Eskom Leaches Bay Substation in East London. The project includes primary electrical equipment, coordination services, Factory Acceptance Testing, and logistics. Delivery is required within nine months of appointment, with the project starting 14 days after signing the Service Level Agreement. A compulsory virtual briefing session is on 25 August 2026, and proposals are due by 12:00 PM on 18 September 2026. The tender requires adherence to strict technical specifications and quality standards.
Deep Cleaning Service for Eskom Rotek Industries
Eskom Rotek Industries invites tenders for professional deep cleaning services at their Rosherville site for five years. The work includes cleaning ablution facilities, canteens, and medical centres, with tasks like disinfection and waste management, adhering to health and safety standards. A non-compulsory meeting will be held online on 01 September 2026. The tender closes on 25 September 2026. Bidders must provide a service schedule and meet technical and safety requirements.
Purchase and removal of 40 MVA transformer.
Eskom invites bids for the once-off purchase, collection, and removal of a 40 MVA transformer at Rockdale Substation, Mpumalanga. The buyer is responsible for site cleanup and managing potential oil spills. The transformer includes an unknown quantity of oil, which becomes the buyer's property. Full payment is required three days before collection, with removal within seven working days. A compulsory site meeting is on 15 September 2026, and the tender closes on 17 September 2026.
Agreement for Disposal of Scrap Transformers in Western Cape
This tender involves establishing an agreement for the disposal of scrap KVA transformers and mini-subs for Eskom's Western Cape Operating Unit. The work is on an 'as and when' required basis over 24 months. Responsibilities include collection, handling, loading, and transportation of scrap units from various sites, including Brackenfell Complex. Key deliverables are site cleaning and rehabilitation of oil spills. A competitive reverse e-Auction will determine pricing. The contract mandates strict adherence to safety, health, and environmental standards, including maintaining a site safety file and appointing competent personnel. Issued by Eskom, the tender closes on 17 September 2026 at 10h00.