Supply and delivery of medium-voltage distribution transformers (limlanga cluster, 24-Month as-and-when contract)

Supply of various types of distribution transformers within the LimLanga Cluster on an as-and-when required basis over 24 months. The contract is interim and will cease once the Distribution Division National Contract is in place.

Pricing schedule items (SAP No. / description / unit / quantity):

• 175077: MV pole-mounted 16 kVA transformer, 11kV/242V — 400 each
• 175078: MV pole-mounted 16 kVA transformer, 22kV/242V — 500 each
• 175081: MV pole-mounted 25 kVA transformer, 11kV/420V — 430 each
• 175082: MV pole-mounted 25 kVA transformer, 22kV/420V — 450 each
• 175083: MV pole-mounted 50 kVA transformer, 11kV/420V — 400 each
• 175084: MV pole-mounted 50 kVA transformer, 22kV/420V — 860 each
• 175085: MV pole-mounted 100 kVA transformer, 11kV/420V — 460 each
• 175086: MV pole-mounted 100 kVA transformer, 22kV/420V — 1250 each
• 175091: MV pole-mounted 200 kVA transformer, 11kV/420V — 70 each
• 175092: MV pole-mounted 200 kVA transformer, 22kV/420V — 150 each
• 175093: MV pole-mounted 500 kVA transformer, 11kV/420V — 30 each
• 175094: Coastal 500 kVA transformer, 22kV/420V — 60 each
• 175095: MV pole-mounted 315 kVA transformer, 11kV/420V — 40 each
• 175096: MV pole-mounted 315 kVA transformer, 22kV/420V — 50 each
• 175097: MV pole-mounted 32 kVA transformer, 11kV/+242/-242V — 50 each
• 175098: MV pole-mounted 32 kVA transformer, 22kV/+242/-242V — 70 each
• 189923: MV pole-mounted 64 kVA transformer, 22kV/+242/-242V — 40 each

Clarification meeting (non-compulsory, online): 03 November 2026 at 14:00.

Supply of various types of transformers within the LimLanga Cluster on an "as and when" required basis for a period of 24 months.

Submission requires the completed, signed Non-Disclosure Agreement (NDA) template. This is the only returnable document identified in the provided material.

The tender evaluation process is not detailed in the provided document. The only stated requirement is that bidders must sign and return the NDA. Bidders must be legally capable of entering into a binding agreement under South African law.

Supply of various types of transformers within the LimLanga Cluster on an "as and when" required basis over a 24-month period. The QCP or ITP must be completed for the supply, covering inspection and test methods, acceptance criteria, and intervention points (hold, witness, document review, surveillance, verification).

Contract starting date: to be advised.

Delivery date: specified in each purchase order.

Defects date: 12 months from date of delivery per purchase order.

Defect correction period: 3 weeks including testing.

Defects access period: 5 working days.

Period for reply: one week.

Revised programmes due every 2 weeks.

B-BBEE status change notification: within 7 days of change; updated verification within 30 days.

No briefing or site visit dates are stated in the available text.

Contact: Constance Sekhuto (Supply Manager)

Address: Eskom Megawatt Park, 1 Maxwell Drive, Sunninghill, Johannesburg

Telephone: 016 457 5925

Email: [email protected]

Purchaser: Eskom Holdings SOC Ltd (Reg No. 2002/015527/30)

Registered office: Megawatt Park, Maxwell Drive, Sandton, Johannesburg, 2199

Telephone: 011 800 8000

No submission address stated.

Returnable forms and documents - name each and the obligation it commits the bidder to:

• Form of Offer and Acceptance (C1.1): signed offer committing the bidder to the contract terms.
• Schedule of Deviations: any permitted deviations must be recorded here; covering letters must not be included in the final contract.
• Proforma Guarantees (C1.3): securities, bonds, guarantees, and proof of insurance to be delivered within 2 weeks of receiving the signed agreement.
• Pricing Data (Part C2): offered total prices exclusive and inclusive of VAT.

Submission method and address: Not stated in the available text. Closing time: Not stated in the available text.

Evaluation stages and scoring split are not stated in the available text.

Contract award is subject to acceptance of the Offer by Eskom.

Bidders must be able to provide securities, bonds, guarantees, proof of insurance, and other documentation within two weeks of receiving the signed agreement.

Delay damages of R5,000 per day, capped at 15% of the purchase order value, will apply for late delivery.

The performance bond amount will be advised at contract award.

Financial analysis may require a parent company guarantee or performance bond.

Bidders must accept all NEC3 Supply Contract (April 2013) core clauses, options X1, X2, X3, X7, X13, X17, and Z-clauses.

The scope is the supply of various types of transformers within the LimLanga Cluster on an 'as and when' required basis over 24 months.

Goods information is in Part C3: Scope of Work and referenced drawings.

Supply requirements are in Annexure A to the Contract Data.

Manufacturing must be in accordance with Eskom designs/specifications.

Pricing: The offered total of the Prices exclusive of VAT, plus VAT at 15%, and the total inclusive of VAT must be stated in the Form of Offer and Acceptance.

Payment: Eskom pays within 30 days of submission of a tax-compliant invoice with a GR number for contracts valued below R50 million (including VAT); within 60 days for contracts valued above R50 million.

Interest on late payments: Standard Bank prime rate (for ZAR) or LIBOR (for foreign currencies).

Delay damages: R5,000 per day, capped at 15% of the purchase order value.

Performance bond: amount to be advised at contract award.

Parent company guarantee: required if financial analysis recommends it.

Supplier's total liability: limited to the total of the Prices.

End of liability date: 12 months after delivery of all goods and services.

Purchaser's liability for indirect or consequential loss: limited to R0.00.

Foreign currency payment methods: Payment Method 1A, 1B, 2, or Fixed ZAR contract; requirements include being the direct importer and providing documentary evidence.

VAT: The bidder must be registered for VAT and include Eskom's VAT number 4740101508 on all invoices.

B-BBEE: The bidder must notify Eskom of any change in B-BBEE status within 7 days and submit updated verification within 30 days. A decrease in status may lead to renegotiation or termination.

Health and safety: The bidder must comply with all applicable health and safety laws and regulations; the total of the Prices includes an amount for this compliance.

Environmental: The bidder and subcontractors must comply with all applicable environmental laws and regulations.

Law of contract: South African law. Language: English.

Adjudicator: selected from ICE-SA panel or appointed by AFSA. Tribunal: arbitration in South Africa under the Association of Arbitrators (Southern Africa) rules.

Ethics: The bidder must not engage in corrupt, coercive, or collusive actions.

Bidders must complete and submit the AB Schedule pricing sheets and the Source Data worksheet. The AB Schedule is for Ester Oil options only; if the scope includes Ester options, the Ester Oil or Ester/Ester Schedule must also be submitted to the Buyer.

No explicit evaluation criteria are stated in the provided document.

Transformers to be supplied include various types (single-phase, three-phase, dual-phase) with power ratings from 16 kVA to 500 kVA, primary voltages 11 kV, 22 kV, or 33 kV, and secondary voltages 242V/420V. All units are for coastal use with Ester Oil insulation. Each transformer must comply with SANS 780 standards, including type and routine tests, with guaranteed no-load and load losses as specified. SABS certification mark and permit number must be stated. Coastal transformers must have corrosion protection coating system (e.g., DS-14 + DS-15) and final coat in Azure Blue. Inland transformers (if offered) require DS numbers per DSP 240-75655504.

No specific compliance requirements are stated in the provided document.

Addendum issued: 19 August 2026.

Enquiries:

• Telephone: +27 11 709 3769

Procurement and Supply Chain Management, Sourcing Wires:

• Address: 90 Hans Van Rensburg Street, Private Bag X9477, Polokwane 0699, South Africa
• Telephone: +27 15 230 1729
• Fax: +27 86 661 1062
• Email: (not stated)

Technical contacts (as per addendum):

• Jabu Mahlangu — Senior Technologist Electric, Limlanga Cluster
• Mmedi Motaung — Standard Implementation Manager, Limlanga Cluster

Returnable documents:

• Bidder Cover Letter for the technical submission, indicating for each item on scope whether it was on the previous Eskom contract, whether a design review has been conducted, whether changes have occurred since the last design review, whether the factory is Eskom accredited, and whether there have been changes to the factory since accreditation. Must be submitted with the bid.
• Electronic submission of technical evidence (searchable PDF) is required; it is in addition to and not a substitute for the hard copy printed documentation required by the commercial enquiry.

Technical evaluation (Unique Identifier: 240-128700801) uses a scoring methodology with the following scores:

• 100% (Score 5): Compliant — meets technical requirements with no foreseen technical risks.
• 80% (Score 4): Compliant with qualifications — meets requirements with acceptable technical risks, exceptions, or conditions.
• 40% (Score 2): Non-compliant — fails to meet requirements or has unacceptable risks, exceptions, or conditions.
• 0% (Score 0): Totally deficient or non-responsive.

Procurement: supply of pole and ground mounted transformers within the Limlanga Cluster on an 'as and when' required basis over 24 months.

Technical requirements (as amended):

• Only Ester Oil options are accepted; mineral oil-filled units are not accepted.
• OEMs offering transformers from Eskom unaccredited factories must be fully Eskom accredited before contract award.
• OEMs offering transformers without an Eskom approved design review must have design reviews conducted by an Eskom qualified/trained team.

Scoring methodology for technical evaluation (TEC 240-128700801):

• Score 5 (100%): Compliant, no foreseen technical risks.
• Score 4 (80%): Compliant with acceptable qualifications.
• Score 2 (40%): Non-compliant due to unmet requirements or unacceptable risks.
• Score 0 (0%): Totally deficient or non-responsive.

Eskom factory accreditation is mandatory before contract award for units from previously unaccredited factories. Design review by an Eskom qualified/trained team is required where no Eskom approved design review exists.

The addendum revises the technical evaluation criteria for the transformer tender. Key changes include: electronic submissions must be searchable PDFs; only Ester Oil filled transformers are accepted; a Bidder Cover Letter is required; OEMs must be Eskom accredited before award if offering units from unaccredited factories; design reviews must be conducted by an Eskom qualified team where no approved design review exists.

Eskom Representative: Only the Eskom Representative identified in the Invitation to Tender may be contacted. No other Eskom official should be approached.

Submission address: As stated in the Tender Data (for e-tendering, use the Eskom e-Tendering page).

Submission method: The tender must be submitted via the Eskom e-Tendering platform at the Eskom Tender Bulletin site (Eskom E-tendering page). Physical tender boxes are not used for e-tendering.

Submission requirements:

• Submit one complete original tender plus one complete hard copy of the original (specify which sections of the scope, if any, are covered by each).
• Mark packages as "ORIGINAL" and "COPY" (and "ELECTRONIC COPY" if an electronic copy is requested).
• The outer package must be sealed, marked "Confidential", and state the Eskom address, the Invitation to Tender number (E3738DXLIMOU), the tenderer's name, physical address, email address, and the contact telephone number of the authorised signatory.
• Tenders must be submitted in English, completed in ink, and signed by a duly authorised representative.
• All mandatory tender returnables must be completed and submitted by the closing date and time. Documents identifying mandatory returnables must be submitted with the tender.
• The Acknowledgement Form must be completed and submitted with the tender.
• For e-tendering, upload documents to the correct folders (Technical, Commercial, Financial) on the e-tendering page.

Returnable forms (complete, sign, and submit):

• SBD 1: bidder details and contact information.
• SBD 4: Declaration of Interest - disclose any director or shareholder employed by the state or connected to the institution.
• SBD 6.1: Preference Points Claim - claim B-BBEE points under the applicable point system.
• SBD 6.2: Declaration for Local Production and Content (if applicable).
• SBD 8: Declaration of Bidder's Past Supply Chain Management Practices.
• SBD 9: Certificate of Independent Bid Determination - certifies no collusion or price disclosure.
• SDL&I Undertaking: must be completed and submitted by no later than contract award.
• Proof of authority to act as agent (if submitting via an agent).

Disqualification risks:

• Tenders not finalised and uploaded before closing time.
• Tenders based on 100% sub-contracting.
• Omission of the original or copy, or failure to submit any mandatory returnable.
• Late tenders - no late tenders accepted.
• Altering tender documents or using correction fluid/tape.

Evaluation stages:

• Basic compliance: verify each tender meets the stated basic compliance requirements. Failure renders the tender non-responsive.
• Mandatory returnables: missing mandatory documents or information by closing time leads to disqualification.
• Pre-qualification criteria (if stipulated): bidders must comply; Eskom will not measure the same criterion twice in different phases (no 'double dipping').
• Functionality (if applicable): bidders must meet the minimum threshold stated in the Tender Data to proceed to further evaluation.
• Financial analysis (if applicable): Eskom will assess the financial risk of each bidder; if no suitable mitigating factors exist or the risk is too high, the bidder will not be considered for award.
• Price evaluation: Price is evaluated per the Tender Data, considering factors such as CPA, FOREX, commodity exposure, unconditional discounts, technical adjustments, PV, and forecasted rates of invoicing.
• B-BBEE scoring: The B-BBEE level is scored from the CSD report or provided certificate/affidavit. If no proof is provided at closing, the bidder scores zero for PPPFA points (unless B-BBEE is a pre-qualification criterion, in which case the tender is disqualified).
• Specific Goals scoring: Bidders score points for Specific Goals based on supporting documentation; if not provided by closing, they score zero for that portion.
• Ranking: Price score and Specific Goals scores are added and bidders ranked highest to lowest per PPPFA (90/10 or 80/20 allocation).
• Objective criteria: Contract may be awarded to a bidder not scoring highest only if objective criteria stipulated in the Invitation to Tender are used; functionality and B-BBEE elements cannot be used as objective criteria.

The tender is for the supply of various types of transformers within the LimLanga Cluster on an 'as and when' required basis.

Duration: 24 months.

The scope includes supply of transformers as specified in the Invitation to Tender (the extracted document does not contain the detailed specification/quantity list; these are provided in the Tender Data).

Tenderers must provide proof of safety, health, environment, and quality (SHEQ) systems and capabilities at closing or by contract award. All costs and personnel associated with SHEQ must be included in the tender. The successful bidder may also be required to provide cataloguing information after award and label materials per Eskom's labelling specifications.

The pricing schedule must be completed with rates and prices in South African Rand, including all duties, taxes, and levies applicable 14 days before closing. Rates must be fixed for the contract duration. Arithmetical errors will be corrected per Eskom's rules (e.g., amount in words prevails over figures; line-item total prevails if unit rate multiplication is wrong). Bidders must not use correction fluid or tape. If a reverse e-auction is used, the tender must not contain prices.

Pricing:

• Include all duties, taxes (including VAT), and levies applicable 14 days before the closing date in the rates, prices, and total.
• Rates and prices must be fixed for the contract duration, unless the Invitation to Tender provides for price adjustment.
• Prices must be stated in South African Rand, using the exchange rate and base date stipulated in the Invitation to Tender.
• No correction fluid or correction tape may be used; alterations must be initialled by all signatories.
• Alternative tenders are only allowed if a main tender is also submitted and if permitted in the Invitation to Tender.
• Any arithmetical errors will be corrected per Eskom's rules; the amount in words prevails over figures.

Contract security:

• If performance security is required, the tenderer must name at least two financial institutions they intend to approach. Eskom may reject an unsuitable institution.

Insurance:

• Eskom's insurance may not be sufficient; bidders are advised to obtain qualified advice.

Financial capacity:

• Eskom may conduct a financial analysis of bidders to assess risk; insufficient mitigating factors may exclude a bidder from award.

CSD registration: Mandatory - tenderers must be registered on the Central Supplier Database.

Tax clearance: A valid tax clearance (SARS TCS or tax pin) is required.

B-bbee:

• A valid B-BBEE certificate or affidavit (for EMEs/QSEs) or CSD report is required to claim preference points. If B-BBEE is a pre-qualification criterion, proof must be provided at closing; otherwise it scores zero.
• Fraudulent or expired certificates lead to disqualification.
• Sub-contracting to designated groups: if used, sub-contractors' B-BBEE status and CSD numbers must be provided at closing.

CIDB: If stipulated in the Tender Data, CIDB registration or application (within 21 working days of closing) is required; proof must be submitted at closing.

SHEQ: Proof of safety, health, environment, and quality systems must be provided; costs must be included in the tender.

Local content: Information on designated materials and thresholds must be submitted by contract award.

Legislation: Compliance with National Treasury Instructions, PPPFA Regulations, B-BBEE Codes, COIDA, OHS Act, and other applicable laws is required.

SDL&I Undertaking: Must be completed and submitted by contract award.

Fraud/misrepresentation: Any misrepresentation or falsification of documents (including B-BBEE certificates) will lead to disqualification and possible suspension from doing business with State-Owned Companies for up to 10 years.

Compliance with the OHS Act and Eskom's SHEQ requirements is mandatory. Proof of SHEQ systems, policies, and capabilities must be provided by the closing date or contract award. Bidders must ensure all SHEQ costs are included in the tender. Construction-related contracts may trigger CIDB Contract Skills Development Goals (CSDG) and Contract Participation Goals (CPG) if the contract meets specified thresholds (e.g., R5 million or more, or CIDB grade 7 or higher).

Tender validity: Tenders must remain valid for acceptance until a contract is concluded; Eskom may request a specific additional period. Bidders may be asked to extend validity; those who decline are excluded from further consideration.

Confidentiality: All matters relating to the procurement must be treated as confidential; documents may only be used for preparing the tender.

Eskom's rights: Eskom may accept or reject any variation, deviation, or alternative tender, accept only part of a tender, cancel the tender at any time (with written reasons on request), and negotiate with one or more selected tenderers.

Liability: Eskom and its representatives are not liable for losses or damages incurred by tenderers during the process.

Contract formation: The successful bidder must sign the Form of Agreement; negotiations may amend the contract documents. Addenda issued during the tender period become part of the Invitation to Tender.

Termination/penalties: Not detailed in the extracted document; likely in the contract conditions listed in the Tender Data.

In addition to the standard evaluation stages (basic compliance, mandatory returnables, pre-qualification, functionality, financial analysis, price, B-BBEE, and Specific Goals), Eskom may consider objective criteria under section 2(1)(f) of the PPPFA, provided they are stipulated in the Invitation to Tender. Reverse e-auction may be used, in which case the tender must not include prices; if prices are included, they will not be considered. Bidders must not be restricted from doing business with Eskom or State-Owned Companies.

Specific Goals: Up to 10 points are awarded for the specific goal (B-BBEE status level) under the 90/10 preference point system. Points for price and specific goal are added and rounded to two decimals. Contract awarded to highest total.

Scoring table (B-BBEE Status Level of Contributor):

• Level 1: 10 points
• Level 2: 9 points
• Level 3: 6 points
• Level 4: 5 points
• Level 5: 4 points
• Level 6: 3 points
• Level 7: 2 points
• Level 8: 1 point
• Non-compliant contributor: 0 points

Documents required to claim preference points:

• Valid B-BBEE certificate (SANAS accredited) / sworn affidavit / CIPS affidavit
• Proof of ownership/shareholding (preferably CIPC documentation) with shareholding breakdown
• Certified ID copies of shareholders
• Proof of disability where applicable

Failure to submit preference points documentation does not disqualify, but bidder may score only out of 90 for price and 0 out of 10 for specific goals.

Objective Criteria: Not mandatory to include, but a condition for contract award. If not met, second-ranked bidder may be recommended for award.

Designated Sector: Transformers is a designated sector. Local Content threshold: 90% for Class 0. SBD 6.2 Declaration Form and Annex C (Local Content Declaration - Summary Schedule) are mandatory returnables.

Scope of work: Supply of medium-voltage distribution transformers (various types) within the LimLanga Cluster on an "as and when" required basis.

Duration: 24 months (2 years).

Designated sector: Transformers, Class 0, with a minimum Local Content threshold of 90%.

Skills Development Proposals:

• Submit plans to develop skills of unemployed candidates (2 assemblers, 1 per annum).
• Candidates to be drawn from all provinces and representative of national demographics.
• Skills development excludes Eskom employees and registered learners.
• Tenderer bears full cost; Eskom provides no financial contribution.
• Tenderers may approach relevant SETAs for grants, subsidies, incentives, and SARS for tax rebates for skills development initiatives.

SDL&I Penalty and Performance Security:

• A penalty of 2.5% of the invoice amount applies for failure to meet SDL&I obligations.
• A penalty of 2.5% of the Order Value for failure to meet SDL&I obligations.
• Eskom retains 2.5% of every invoice (excluding VAT) as security for SDL&I obligations for the duration of the contract.
• Retained amounts released only upon receipt of SDL&I progress reports, fulfilment of all SDL&I obligations, and submission of an approved compliance report by the SDL&I Department.

B-bbee:

• Valid B-BBEE certificate (SANAS accredited) / sworn affidavit / CIPS affidavit is a condition for contract award.
• Revenue up to R10 million (EME): submit a sworn affidavit.
• Revenue up to R50 million (QSE): must comply with all elements of QSE scorecard relevant to the sector, unless at least 51% black-owned, in which case a sworn affidavit is required.
• Revenue above R50 million: submit a valid B-BBEE certificate.

Sworn affidavit validity requirements:

• Name of deponent as per ID and ID number.
• Designation of deponent (director, owner, or member) must be indicated.
• Enterprise name as per CIPC registration and business address.
• Percentage of black ownership, black female ownership, and designated group (for specialised enterprises as per Statement 004, percentage of black beneficiaries). No blank spaces.
• Total revenue for the year under review and whether based on audited financial statements or management accounts.
• Financial year end (day/month/year).
• B-BBEE status level (only one status level, tick applicable).
• Empowering supplier status; for QSEs, basis for this status.
• Date deponent signed must match date Commissioner of Oath signed; affidavit must be signed in presence of Commissioner of Oath, who also signs and stamps.
• Commissioner of Oath cannot be an employee or ex officio of the enterprise.

SDL&I Transformation - B-BBEE Improvement or Retention Plan:

• Submit B-BBEE improvement or retention plan within 30 days of signing contract.
• Bidders at Level 4 at award must achieve Level 3 by end of first year, then improve by one level each subsequent year.
• Bidders at Level 5-8 or non-compliant at award must achieve Level 4 by end of first year, then improve at least one level per year from year two.

Procurement from Designated Groups:

• Target: Procurement from EME/QSE >51% owned by Black People: 3% of indirect expenses (e.g., overheads) on goods and services supplied by designated groups.

Skills Development:

• Submit proposals for developing skills of unemployed candidates (2 assemblers, 1 per annum). Candidates from all provinces, representative of national demographics.
• Skills development excludes Eskom employees and registered learners.
• Tenderer bears full cost; Eskom makes no financial contribution.

Jobs:

• Submit proposals for number and type of jobs to be created and retained in South Africa as a result of the contract.

Specific Goals: Maximum 10 points for the specific goal (B-BBEE status level) under the 90/10 system. Points added to price points; total rounded to two decimal places. Contract awarded to highest total.

Scoring table (B-BBEE Status Level of Contributor):

• Level 1: 10
• Level 2: 9
• Level 3: 6
• Level 4: 5
• Level 5: 4
• Level 6: 3
• Level 7: 2
• Level 8: 1
• Non-compliant: 0

Preference points documentation required: valid B-BBEE certificate / sworn affidavit / CIPS affidavit, proof of ownership (CIPC docs), certified ID copies of shareholders, proof of disability where applicable.

Failure to provide documentation for preference points:

• Not disqualified, but may score only out of 90 for price and 0 out of 10 for specific goals.

Returnable documents: complete and sign Form A (Tender & Contract Quality Requirements). The form confirms the tenderer's quality representative details and acceptance of the applicable quality clauses.

Pre-contract award quality requirements apply under Category 1 of the quality specification. Bidders must indicate which quality categories apply and confirm whether a site assessment is required. Supplier capability and capacity assessment applies.

Supply of various types of transformers within the LimLanga Cluster on an as-and-when required basis over 24 months. Bidders must comply with the quality requirements set out in Form A (Document 240-68099512 Rev 9).

The tender requires the bidder's quality system to address ISO 9001 clauses on context of the organisation, leadership, planning, support, operation, performance evaluation and improvement. The bidder must demonstrate alignment with the seven quality management principles.

Eskom reserves rights of access to bidder premises, rights to information, preservation of records, and rights to conduct quality audits. Nonconformities and nonconforming outputs identified by Eskom must be managed. Special processes apply. Bidders must comply with ISO 9001 clauses covering context, leadership, planning, support, operation, performance evaluation and improvement, and the associated quality principles (customer focus, leadership, engagement of people, process approach, improvement, evidence-based decision making, relationship management).

Mandatory compliance with the quality requirements in Form A, including selection of Category 1 for pre-contract award quality requirements. No other eligibility criteria such as CSD registration, tax clearance, B-BBEE level or CIDB grading are stated in the provided document.

Bidders must comply with the quality requirements in Form A, including pre-contract award quality requirements (Category 1). Supplier quality performance monitoring, quality audits related conditions, and management of nonconformities apply.

Closing date: 30 September 2024 at 08:00 (per the source listing; note tender record lists 2026-11-19).

No other dates are provided.

Returnable documents: none are specified in the available source material.

Submission method: not stated in the source. The closing date and time are recorded in the tender listing (8:00 am on 19 November 2026).

The bid is evaluated on the acceptability of the provided guarantee.

• A guarantee from an entity on the pre-vetted list is acceptable, subject to confirmation of available credit limit where applicable.
• A guarantee from an entity not on the list must meet a minimum credit rating (National scale: za.A- or A3.za; or foreign currency: BBB- or Baa3).
• Such an entity will be vetted by Eskom Treasury, which can take up to 12 weeks.
• If the guarantee is not accepted, the bid is marked non-responsive and not evaluated further.

The tender covers the supply of various types of transformers within the LimLanga Cluster on an 'as and when' required basis over 24 months.

Quantity and detailed technical specifications are not provided in the source.

A guarantee (bid bond or performance guarantee) must be provided by an acceptable guarantor.

Acceptable guarantors include the pre-vetted list. If not pre-vetted, the entity must meet the credit rating thresholds and be approved by Eskom Treasury.

The following pre-vetted insurance guarantors have specified available limits (as at 31 July 2024):

• Bryte Insurance: available limit R367 872 000
• Centriq Insurance: R135 000 000
• Constantia Insurance: no available limit
• Credit Guarantee Insurance Corporation: R48 117 366
• Guardrisk Insurance: R179 807 000
• Hollard Insurance: R751 250 000
• IDC: no available limit
• Lombard Insurance: R150 975
• Mutual & Federal Risk Financing: no available limit
• Renasa Insurance: no available limit
• Santam Limited: R4 398 910 000
• Old Mutual: R5 971 202 000

If the chosen guarantor has no available credit limit, the guarantee will not be accepted and the bid may be marked non-responsive.

No specific compliance requirements (e.g. CSD, B-BBEE, tax) are stated in the source document.

The guarantee must be from an acceptable guarantor; otherwise the bid may be marked non-responsive. Guarantees from entities not on the pre-vetted list are subject to a evaluation by Eskom Treasury that can take up to 12 weeks. If the guarantee is ultimately not accepted, the bid is disqualified from further evaluation.

The primary evaluation criterion is the acceptability of the guarantee. Bidders using a guarantor not pre-vetted must ensure the guarantor meets the minimum credit rating and be prepared for the possibility that Treasury vetting may reject the guarantor.

Bidders must complete and submit the Contract Quality Plan (CQP) template with their bid. The CQP must be compiled by a representative of the tenderer and approved by the owner of the organisation. No other evaluation criteria are stated in the provided document.

The CQP is a mandatory template that must be completed to address quality management for the supply of various types of transformers within the LimLanga Cluster. The CQP must cover:

• Scope of work full description
• Communication channels between supplier and Eskom
• Organogram with roles, responsibilities, and qualifications
• Index of interfacing documents (processes, standards, codes, specifications)
• List of suppliers and sub-suppliers, and their monitoring
• Interface of sub-suppliers with the supplier's QMS
• Index of items to be manufactured, refurbished, or newly purchased
• Related items/activities needing QCP/ITP (offsite and onsite)
• Processes requiring special controls (e.g., welding, NDT/NDE)
• Documented information to be submitted to Eskom
• Records control and retention
• Concession and non-conformance management
• Databook management process
• Management of working tools and equipment
• Dealing with customer property
• Product preservation
• Identification and traceability
• Commissioning and post-delivery activities
• If the scope includes design, manufacturing, supply and delivery/transportation, construction/installation/maintenance, commissioning, or professional services, these must be marked in the CQP.

Submission is electronic via the Eskom eTendering system, not by physical delivery to tender offices.

• Access: supplier must be registered on the Central Supplier Database (CSD); a CSD number is required to use the system.
• Online registration: complete all fields, use a phone number with a +27 prefix, and complete the CAPTCHA; an email verification link must be followed before first login.
• Login: use the registered email and password; an OTP is sent to the registered cellphone number and email address and must be entered to verify each login.
• To submit: open the tender bulletin or eTendering portal, select the tender reference number, click "Create New Submission", upload each required document under the correct category (e.g. Technical, Commercial, Finance), give each uploaded file a name, then click "Finalize Submission".
• File limits: a single uploaded file may not exceed 50MB, and the total size of all uploaded files may not exceed 900MB.
• After finalising, confirm by clicking "Finalise and Close Submission"; the system records the submission date and time.
• The system emails a confirmation containing the submission ID; keep that email for enquiries.
• To check submitted tenders, use "My Submissions" and then "View Submission"; verifying uploads before finalising is the bidder's responsibility.
• Accepted browsers: most modern browsers, but Microsoft Edge is recommended.
• Returnable documents: the source document does not list the specific returnable forms for this tender.

No evaluation criteria are stated in the source document. The document is a user manual for the eTendering system, not the tender-specific evaluation framework.

The purpose of the eTendering system is to allow suppliers to upload tender documents electronically for tenders advertised on the Eskom Tender Bulletin.

• The eTendering portal replaces the physical submission of bids at Eskom tender offices.
• Suppliers must register on the system before they can submit a bid.
• An OTP (one-time pin) is sent to the registered cellphone number and email address for login verification.
• The source document does not describe the goods, scope, quantities, delivery locations or service requirements of the tender itself — it only explains how to use the submission platform.

CSD registration is mandatory to gain access to the eTendering system and to submit a bid electronically.

• No other compliance, B-BBEE, CIDB, tax or local-content requirements are stated in the source document.

Returnable documents (each item per SAP number offered):

• Technical A&B Schedule: fully completed; Schedule B filled in per Eskom standard 240-45395762, with any supporting evidence referenced.
• OEM General Arrangement Drawing: showing terminal arrangements and dimensions as required.
• Deviation Schedule: record any deviations with motivation and supporting evidence.
• Mark Scheme Permits: submitted as part of the original tender.
• Annex A Test Report Summary Sheet: one per item offered, listing test reports and facilities.
• Type Test and Routine Test lists and test reports/certificates for the specific designs offered.
• Temperature Rise Test Reports (for functional scoring).
• Electronic submission: include all required technical evidence as searchable PDFs, in addition to hard copy printed submissions.

Submission format:

• The electronic submission must be accompanied by the original printed documentation; otherwise the submission is invalid.
• Any gaps, blanks, TBA, or similar non-responsive remarks render the mandatory returnable incomplete.

Disqualification risks:

• Failure on any mandatory requirement for a SAP number.
• Missing or incomplete required documents or information.
• Unaccepted deviations may lead to disqualification or loss of points.

Evaluation stages:

1. Mandatory evaluation (pass/fail per SAP number). If any mandatory item is not met, the submission is non-responsive and disqualified.
2. Functional evaluation (scored 0-100). Minimum qualifying score: 80.00%. Only bids passing mandatory proceed.
3. Factory assessment for factories meeting functional threshold.
4. Design review (mandatory, prior to contract award) for designs not previously accepted by Eskom.

Scoring: 100% functional (technical) criteria, per SAP number.

Factory assessment:

• Each factory evaluated individually; no blanket approval for multiple factories.
• Factory must be declared accredited with no outstanding risks to proceed.
• Any risk identified must be addressed within 30 calendar days of written notification.

Continuous compliance: successful bidders are assessed over the contract term for design changes, exceedances of guaranteed losses, and trended failures, via documentary evidence, design reviews, and factory assessments.

Scope: MV Distribution pole-mounted and ground-mounted transformers.

Pole-mounted transformers: primary voltages 3.3 kV, 6.6 kV, 11 kV, 22 kV or 33 kV; low voltage secondary; power ratings 16 kVA to 500 kVA.

Ground-mounted transformers: primary voltages 3.3 kV, 6.6 kV, 11 kV or 22 kV; low voltage secondary; power ratings 100 kVA to 1 MVA.

SWER isolation transformers: primary 11 kV, 22 kV, 33 kV; secondary 19 kV phase-to-ground; up to 400 kVA.

SWER distribution transformers: primary 19 kV; secondary low voltage; ratings 16, 32, 64 kVA.

Design requirements:

• Offer correct ratings (MVA and voltages) per Schedule A.
• Correct vector group per Schedule A.
• Terminal arrangements per standard 240-45395762 clause 3.2.
• Dimensions comply with Schedule A.
• Specific design impedances as per Schedule A.
• Losses must be ≤ those in SANS 780 (latest revision) or Table 6/240-45395762.
• Insulation level (BIL) and power frequency withstand voltage comply fully with Schedule A.
• Temperature rise figures per SANS 780.
• Tapping range for single phase: 0 to 5% in 2.5% steps via external tapping connections; for dual/three phase: -5 to +5% in 2.5% steps.
• Inter-turn winding insulation stress < 5 kV/mm.
• Highest interlayer stress (non-tapping and tapping parts) < 5 kV/mm; calculated value must be provided (not just "<5 kV/mm").
• Minimum clearance between live terminals and from live terminals to tank > twice BIL (e.g., 22 kV: 2 × 150 = 300 mm), and minimum 100 mm mechanical clearance between brackets and LV bushings.
• All other specific B-schedule requirements must comply with A schedule.
• Design reviews cover bushing compliance, oil level requirements (240-45395762 §3.1 k), ester oil handling/management (§3.2.6), oil filling/impregnation (§3.2.6), and electrical clearances (§3.2.7).
• Factory assessment also checks oil filling requirements (§3.2.6) and anti-corrosive/painting procedures.

Test requirements:

• Type tests: temperature rise, dielectric type, tank stiffness, corrugated tank fatigue, equivalent disturbing current (SWER only), short-circuit withstand, natural ageing and pollution performance. Reports may come from a registered SABS facility, accredited test facility, or factory test facility.
• Routine tests: winding resistance, voltage ratio and phase displacement, short-circuit impedance and load loss, no-load loss and current, separate source voltage test, induced overvoltage test, paint thickness measurement, sealing effectiveness, secondary voltage 484 V across outer two terminals (dual-phase only), insulation resistance, reactance, dielectric routine tests, vector group test.

Range acceptance for similar designs:

• kVA groups: Group 1 (16, 32, 64 kVA), Group 2 (25, 50, 100 kVA), Group 3 (200, 315, 500 kVA).
• Temperature rise, dielectric type, tank stiffness, corrugated tank fatigue tests within the same kVA group may be accepted.
• Short-circuit withstand test: comparative analysis per SANS 60076-5 preferred, or use the same kVA grouping.

Ester oil transformers:

• Mineral oil type test reports accepted only if ester design is identical.
• If not, testing on the ester-filled unit must be submitted.
• Eskom may request testing of untested ester transformers at any stage during the contract.
• Test reports with failed tests will not earn points.

Deviations:

• Any deviation from the standard or A schedule must be recorded on the deviation schedule with explanation and motivation.
• Prior approved concessions must still be documented with evidence.
• Acceptance of deviations is at Eskom's discretion.

Evaluation is performed in two parts: a desktop evaluation of the tender returnables (mandatory and functional criteria) and a factory assessment of each manufacturing facility. Only bidders meeting the mandatory requirements and achieving a functional score of at least 80% proceed to the factory assessment.

Quality management system: ISO 9001 is a normative reference. The supplier must comply with Eskom standard 240-45395762 for specific transformer requirements. Test reports must originate from a registered SABS facility, accredited test facility, or the factory test facility.

Mandatory qualification: ISO 9001 (Quality Management Systems) compliance implied by normative reference.

Evidence requirements:

• Type test reports must be issued from a registered SABS facility, accredited test facility, or the factory test facility.
• Mark scheme permits to be submitted with the original tender (not scored).
• No CIDB grading, B-BBEE, or other pre-qualification requirements are stated in this technical document.

During the contract term, the supplier is continuously assessed for: changes to designs, exceedances of contractually guaranteed losses, and trended failures. Assessments may include review of documentary evidence such as type tests, design reviews, and factory assessments.

Additional details from the evaluation criteria:

• Mandatory items: technical schedules completeness, correct ratings/voltage, vector group, terminal arrangements, dimensions, impedances, and losses within limits. Failure on any item disqualifies that SAP number.
• Functional scoring criteria (10 points each): BIL compliance (LV and MV), power frequency withstand voltage, temperature rise figures, tapping range, inter-turn winding insulation stress, highest interlayer stress (non-tapping and tapping parts), clearances, other B-schedule compliance, and provision of type/routine test lists and reports.
• Factory assessment: only accredited factories (no outstanding risks) proceed; risks resolved within 30 calendar days.
• Design review is mandatory prior to contract award for all designs not previously accepted by Eskom.

Closing date: 19 November 2026 at 08:00

Document effective date: 21 October 2025

Review date: October 2028

No briefing or site visit is stated.

Evaluation is based on compliance with Eskom technical specifications, approved drawings, inspection and routine test requirements, and approved quality documentation. No specific scoring split, minimum qualifying score, or preference point system (80/20 or 90/10) is stated in the provided document.

Scope: Supply and delivery of medium-voltage (MV) distribution transformers for the LimLanga Cluster, used for construction, maintenance, refurbishment, strengthening, and emergency restoration of electrical distribution networks.

Contract period: The document states a one-year contract period in the scope and business justification sections, but the tender record indicates a 24-month period. Prefer the tender record: 24 months.

Transformer types: MV pole-mounted distribution transformers, ranging from 16 kVA to 500 kVA, for 11 kV and 22 kV networks.

Secondary voltage configurations: 242 V, 420 V, or +242/-242 V as specified per item.

Coastal unit: One specified coastal 500 kVA, 22 kV/420 V transformer item.

Quality and compliance: Transformers must conform to applicable Eskom specifications, approved drawings, quality requirements, and relevant South African National Standards.

Testing and documentation: Supplier must provide manufacturer documentation, test certificates, compliance certificates, and other technical information for receiving, inspection, and acceptance.

Packaging and delivery: Transformers must be suitably packaged, labelled, handled, and transported to prevent damage during transit and offloading.

SAP material list:

• 175077: 16 kVA; 11 kV/242 V
• 175078: 16 kVA; 22 kV/242 V
• 175081: 25 kVA; 11 kV/420 V
• 175082: 25 kVA; 22 kV/420 V
• 175083: 50 kVA; 11 kV/420 V
• 175084: 50 kVA; 22 kV/420 V
• 175085: 100 kVA; 11 kV/420 V
• 175086: 100 kVA; 22 kV/420 V
• 175092: 200 kVA; 22 kV/420 V
• 175093: 500 kVA; 11 kV/420 V
• 175094: 500 kVA; 22 kV/420 V (coastal)
• 175095: 315 kVA; 11 kV/420 V
• 175096: 315 kVA; 22 kV/420 V
• 175097: 32 kVA; 11 kV/+242/-242 V
• 175098: 32 kVA; 22 kV/+242/-242 V
• 189923: 64 kVA; 22 kV/+242/-242 V

Transformers must meet specified kVA ratings, primary and secondary voltage ratings, mounting configuration, coastal or standard application requirements, technical descriptions, markings, quality assurance, and testing or certification requirements. The supplier must comply with applicable Eskom technical specifications, approved drawings, inspection requirements, routine test requirements, and approved quality documentation.

Bidders must comply with Eskom's technical specifications, approved drawings, inspection requirements, routine test requirements, and approved quality documentation. No specific pre-qualification thresholds such as CSD registration, tax clearance, B-BBEE level, or CIDB grading are stated in the provided document.

No specific OHS requirements are stated beyond general compliance with applicable technical, quality, and safety requirements as part of the contract. Transformers must be suitable for their intended voltage, loading, and application requirements to ensure safety and performance of the distribution network.

Supply and delivery of MV pole-mounted distribution transformers from 16 kVA to 500 kVA for 11 kV and 22 kV networks.

Provide transformers with secondary voltage configurations of 242 V, 420 V, or +242/-242 V per SAP item.

Supply both standard MV pole-mounted units and the specified coastal 500 kVA, 22 kV/420 V unit.

Comply with applicable Eskom technical specifications, drawings, inspection requirements, routine test requirements, and approved quality documentation.

Deliver transformers suitably packaged, labelled, handled, and transported to prevent damage during transit and offloading.

Provide manufacturer documentation, test certificates, compliance certificates, and other technical information required for receiving, inspection, and acceptance.

Support timely replenishment of transformer stock for maintenance, capital projects, service restoration, and network reliability improvement initiatives.

Transformers must conform to applicable Eskom specifications, approved drawings, quality requirements, application requirements, technical descriptions, markings, quality assurance, testing, and certification requirements. Routine test requirements and approved quality documentation apply.

Mandatory returnable: E-Tendering Training Acknowledgement Form. Incomplete submission or failure to submit within the prescribed period disqualifies the bidder.

No technical specifications were provided in the document.

No specific compliance requirements were stated in the document.

Returnable documents must be completed and submitted with the bid:

• Form A: completed and signed.
• Valid ISO 9001 certification (Section A Option 1).
• Evidence of QMS in operation (Section B): organization chart, responsibility matrix, documented information for control of externally provided processes, latest internal audit report, latest certification audit report (not older than 12 months), management review meeting records.
• Draft Contract Quality Plan (Section C): specific to the scope of work, per ISO 10005.
• Draft Inspection and Test Plan (ITP) or Quality Control Plan (QCP) on similar work (Section D).

Submission method and address are not stated in the provided document.

Evaluation is based on quality deliverables, each scored as 1 (applies) or 0. Sections and maximum points:

• Section A (ISO 9001 certification): 4 points
• Section B (Evidence of QMS in operation): 5 points
• Section C (Contract Quality Plan): 1 point
• Section D (Quality Control Plan/ITP): 1 point
• Section E (Form A completed and signed): 1 point

Total possible: 12 points. No minimum qualifying score or price/functionality split is stated.

Supply and delivery of various types of transformers within the LimLanga Cluster on an 'as and when' required basis over a period of twenty-four (24) months. The project title indicates Medium-Voltage Distribution Transformers. Detailed quantities and specifications are not provided in the extracted document.

Bidders must hold a valid ISO 9001 certificate issued by a certification body with recognised international accreditation. The certificate's scope must be defined and relevant to the products/services. The certificate must be valid at the time of submission. No other compliance requirements (e.g., CSD, B-BBEE, CIDB) are stated.

Quality deliverables are evaluated per the following sections (maximum points in brackets):

• Section A: ISO 9001 certification (4 points)
• Section B: Evidence of QMS in operation (5 points)
• Section C: Contract Quality Plan (1 point)
• Section D: Inspection and Test Plan or Quality Control Plan (1 point)
• Section E: Form A completed and signed (1 point)

Total possible: 12 points.