Refurbishment of medium voltage electric motors at duvha power station — 60-Month workshop & site service contract

This document is the Technical Evaluation Criteria guideline for the Duvha MV Motor Repair Contract (Reference: 240-48929482). It defines the mandatory and qualitative technical criteria used to evaluate bids for the refurbishment of medium voltage electric motors at Duvha Power Station over a 60-month period. The criteria cover facility and equipment capabilities, testing capabilities, personnel skills, transport capacity, documentation practices, and service commitments. Bidders must pass all mandatory criteria and achieve a minimum 70% overall technical score to be considered technically suitable.

Closing date: 9 November 2026 at 10:00

No compulsory briefing or site visit dates are stated in this document.

The document does not specify submission method, address, number of copies, or packaging requirements. It references Technical Schedule B as a mandatory returnable document that must be fully completed and submitted with the bid. No other returnable forms (SBD/MBD) are listed in this extract.

Evaluation occurs in two stages:

Stage 1: Mandatory Technical Criteria (Pass/Fail)

• Submission of fully completed MV Motor Repair/Refurbishment Technical Schedule B by Supplier
• Confirmation letter that the tenderer has a local MV Motor repair workshop with testing capability
• Confirmation letter that the tenderer will comply with MV Motor Refurbishment and Repair of Power Station Electric Motors Works Instructions (240-89217674)

All three must be met (YES) to proceed.

Stage 2: Qualitative Technical Evaluation (Weighted Scoring)

Total score must be ≥ 70% to be technically suitable.

Key Performance Areas and weights:

• Manufacturing/Repair Facility and Capability: 35%
• Crane size facility (6%)
• Cleaning facility (4%)
• Burn out ovens facility (5%)
• Curing oven facility (4%)
• VPI Tanks (5%)
• Balancing machine (3%)
• Coil Shop (2%)
• Winding Shop (2%)
• Spray booth facility (2%)
• Covered storage area (2%)
• Testing Facility and Capability: 30%
• Insulation resistance testing equipment (3%)
• High voltage testing facility and equipment (5%)
• Phase resistance testing equipment (3%)
• Interturn testing equipment (3%)
• Bearing oil Lubrication system (2%)
• Bearing water Lubrication system (2%)
• Full vibration spectrum analysis capability (5%)
• Routine Test report with results (5%)
• NDT Shaft/Fans (2%)
• Skills Capability: 15%
• Qualified armature rewinder (3%)
• Technical personnel e.g. Engineer, Technician (2%)
• Qualified Fitter (3%)
• Quality control personnel (3%)
• Vibration Analyser (Level 2 certificate) (4%)
• Transport Capability: 5%
• Number of trucks (3%)
• Maximum tonnage capability (2%)
• Documentation: 5%
• Failure report sample covering incoming assessment, inspections, testing and failure analysis (3%)
• Minimum period of information storage of Electronic data (2%)
• Services, Certification and Production: 10%
• Field services available (2%)
• Emergency Response time (3%)
• Warrantee on Workmanship (5%)

Scoring scale per sub-criterion:

• Not submitted = 0
• Non Compliant = 2
• Compliant with Acceptable Risk = 4
• Fully Compliant = 5

Scope: Refurbishment of medium voltage electric motors at Duvha Power Station for a period of 60 months.

Key technical requirements inferred from evaluation criteria:

• Local MV motor repair workshop with testing capability
• Compliance with Works Instructions (240-89217674)
• Facility requirements: crane, cleaning, burn-out ovens, curing ovens, VPI tanks, balancing machine, coil shop, winding shop, spray booth, covered storage
• Testing capabilities: insulation resistance, high voltage, phase resistance, interturn, bearing oil/water lubrication systems, full vibration spectrum analysis, routine testing, NDT on shafts/fans
• Skilled personnel: qualified armature rewinder, engineers/technicians, qualified fitters, quality control personnel, vibration analyst (Level 2 certificate)
• Transport: adequate trucks and tonnage capacity for motor transport
• Documentation: failure reports covering incoming assessment, inspections, testing, failure analysis; electronic data storage for minimum period
• Field services and emergency response capability
• Warranty on workmanship

Mandatory compliance items from evaluation criteria:

• Completed Technical Schedule B
• Confirmation letter: local MV motor repair workshop with testing capability
• Confirmation letter: compliance with Works Instructions (240-89217674)

Standard South African public procurement requirements (not explicit in this extract but typically applicable):

• CSD registration
• Valid tax compliance status (SARS tax pin)
• B-BBEE certificate or sworn affidavit for preference points
• CIDB grading (if construction-related; not specified here)
• CIPC registration
• No specific local content percentages stated

Scope: refurbishment of medium voltage electric motors at Duvha Power Station, Mpumalanga.

Contract period: 60 months.

Quality requirements: bidders must acknowledge and accept Eskom Supplier Quality Requirements per specification 240-105658000 and ISO 9001 Standard.

Applicable quality clauses (marked with X):

• Pre-contract award quality requirements (Category 1 supplier assessment)
• Contract execution monitoring
• Supplier quality performance monitoring
• Supplier quality audits
• Eskom rights of access and information
• Preservation of product
• Quality audits related conditions
• Management of nonconformities identified by Eskom
• Special processes control

Applicable ISO 9001 clauses: 4 (Context of the Organisation), 5 (Leadership), 6 (Planning), 7 (Support), 8 (Operation), 9 (Performance evaluations), 10 (Improvement)

Applicable quality principles: customer focus, leadership, engagement of people, process approach, improvement, evidence-based decision making, relationship management.

Closing: 9 November 2026 at 10:00

Submission method and address not stated in the extracted document text.

Scope: refurbishment of medium voltage electric motors at Duvha Power Station, Mpumalanga.

Contract period: 60 months.

Quality requirements: bidders must acknowledge and accept Eskom Supplier Quality Requirements per specification 240-105658000 and ISO 9001 Standard.

Applicable quality clauses (marked with X):

• Pre-contract award quality requirements (Category 1 supplier assessment)
• Contract execution monitoring
• Supplier quality performance monitoring
• Supplier quality audits
• Eskom rights of access and information
• Preservation of product
• Quality audits related conditions
• Management of nonconformities identified by Eskom
• Special processes control

Applicable ISO 9001 clauses: 4 (Context of the Organisation), 5 (Leadership), 6 (Planning), 7 (Support), 8 (Operation), 9 (Performance evaluations), 10 (Improvement)

Applicable quality principles: customer focus, leadership, engagement of people, process approach, improvement, evidence-based decision making, relationship management.

CSD registration required with valid tax clearance status.

B-BBEE: compliance required per SBD 6.1 (Preference Points Claim form).

Returnable forms required:

• SBD 1 (Invitation to Bid): cover page with bidder and contact details, signed as the offer.
• SBD 3.1/3.2/3.3 (Pricing Schedule): pricing submission depending on contract type.
• SBD 4 (Declaration of Interest): discloses state employment or connections to the department.
• SBD 6.1 (Preference Points Claim): B-BBEE points claim under PPPFA.
• SBD 6.2 (Local Production and Content): local content declaration.
• SBD 7.1/7.2 (Contract Form): purchase of goods or rendering of services contract.
• SBD 8 (Past SCM Practices): declaration of previous supply chain management conduct.
• SBD 9 (Independent Bid Determination): certifies independent price setting, no collusion.
• Board Resolution / Authority to Sign: authorises the signatory to bind the bidder.

Quality: bidder must complete and sign Form A (240-6809512 Rev 10) acknowledging Eskom Supplier Quality Requirements per 240-105658000 and ISO 9001.

Closing: 9 November 2026 at 10:00

Submission method: not stated in the available document text

Scope: refurbishment of medium voltage electric motors

Location: Duvha Power Station, Mpumalanga

Contract period: 60 months

Quality requirements: a Quality Control Plan or Inspection Test Plan (QCP/ITP) is required, with defined intervention points including hold points, witness points, document review, surveillance and verification

Inspection categories: statutory (S) and non-statutory (N)

Inspection methods may include visual, microscopy, NDT, liquid/dye penetrant, magnetic particle, EDDY testing

Acceptance criteria to cover functionality requirements, performance measures, regulatory compliance, chemical tests

Records required for all inspection and test activities

This is a Contract Quality Plan (CQP) template for Eskom procurement. It does not contain tender-specific requirements but sets out the quality management framework bidders must address in their submission. The actual tender scope is refurbishment of medium-voltage electric motors at Duvha Power Station over 60 months. Bidders must complete this template as part of their technical proposal, demonstrating how they will meet Eskom's quality expectations for the contract.

Scope: Refurbishment of medium-voltage electric motors at Duvha Power Station, Mpumalanga

Contract duration: 60 months

Quality management requirements (Contract Quality Plan required):

• Quality Management System aligned to SANS 466:2005 / ISO 10005:2005
• Quality objectives: SMART goals for quality outcomes
• Risk register covering project risks

Documentation to be submitted to Eskom:

• QCP / ITP (Quality Control Plan / Inspection Test Plan)
• Method statements / Safe Working Procedures / PQRs (Procedure Qualification Records)
• Repair procedures
• Certificates of compliance
• Material certificates
• Dimension reports
• Test reports
• Technical assurance reports
• Warranty certificates
• Data book index and final data book
• Inspection reports
• Monthly inspection analysis reports
• Consolidated inspection register (accepted, rejected, postponed, cancelled, missed)
• Non-conformance / defects / punch item register with analysis
• Audit findings register and action register
• Updated procedure registers

Sub-supplier management:

• List all sub-suppliers and sub-contractors for specialised activities
• Evaluation, selection and performance monitoring per supplier procedures
• Interface of sub-supplier QMS with prime contractor's QMS
• Supplier inspection reports, surveillance audits, and inspection plans
• Purchased material verification checklists

Special controls required:

• Welding processes
• NDT / NDE (Non-Destructive Testing / Examination)
• Manufacturing / fabrication standards compliance

Product handling:

• Identification and traceability methods for statutory/regulatory items
• Product preservation: handling, contamination control, packaging, storage, transportation, protection
• Customer property management process

Tools and equipment:

• List of tools and equipment for contract execution
• Calibration / maintenance / test status for each item

Post-delivery:

• Commissioning support
• Warranty period and conditions
• Defect correction period / retention funds
• Customer satisfaction measurement
• Technical support

Scope: Refurbishment of medium voltage electric motors at Duvha Power Station, Mpumalanga.

Contract duration: 60 months.

Buyer: Tshepiso Mahlake.

This is an open tender for services (general category) with significant SDL&I obligations including B-BBEE improvement, local content, skills development, job creation, and mandatory subcontracting.

Closing date and time: 9 November 2026 at 10:00.

Contract duration: 60 months from award.

B-BBEE improvement or retention plan: submit within 30 days of signing the contract.

SDL&I Implementation Schedule: complete and return within 28 days after contract award.

SDL&I quarterly reports: submit throughout contract period.

Eskom review of SDL&I reports: within 30 days of receipt.

No compulsory briefing or site visit dates stated in the document.

Buyer: Tshepiso Mahlake

Role: Buyer (procurement contact)

Email: not stated

Telephone: not stated

Submission address: not stated — bidders must confirm with the buyer.

Service delivery address: Duvha Power Station, Mpumalanga.

Submission method: not stated in the document — bidders must confirm with the buyer.

Closing: 9 November 2026 at 10:00.

Returnable forms and documents:

• SBD 6.2 (Declaration Form for Local Production and Content): mandatory if local content thresholds apply.
• Annex C (Local Content Declaration — Summary Schedule): mandatory if applicable.
• Valid B-BBEE certificate, sworn affidavit, or CIPS affidavit.
• Proof of ownership / shareholding (preferably CIPC documentation) with shareholding breakdown.
• Certified ID copies of shareholder(s).
• Proof of disability (where applicable).
• Subcontracting agreement(s) signed by both parties, with subcontractors' company registration documents (CK and B-BBEE certificate or sworn affidavit), or copies of letters of intent to subcontract.
• SDL&I Implementation Schedule: to be completed and returned within 28 days after contract award.

Disqualification risks:

• Failure to submit a valid B-BBEE certificate or qualifying sworn affidavit is a condition for contract award — bid may be rejected.
• Missing mandatory subcontracting documentation for the minimum 10% subcontracting requirement.

Preference point system: 90/10 (confirmed by the B-BBEE points table showing 10 points for specific goals).

Price points: 90 out of 100.

Specific goals (B-BBEE): 10 out of 100.

B-BBEE points allocation (90/10 system):

• 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

Note: The document also references a 20-point specific goals column (80/20 system) in the table header, but the operative system for this tender is 90/10 based on the points table and narrative.

Minimum qualifying score: not stated.

Evaluation stages: not stated — likely single-stage with price and preference points only.

SDL&I objectives: do not form part of scoring but commitments become contractual obligations. Tenderers not meeting SDL&I targets are not disqualified at evaluation stage.

Scope: Refurbishment of medium voltage electric motors at Duvha Power Station.

Duration: 60 months.

Location: Duvha Power Station, Mpumalanga.

Potential subcontracting scope:

• Labour (refurbishment work)
• Transportation of material (to and from the power station)

Minimum subcontracting: 10% of contract value to an EME or QSE that is 51% black-owned by people living in rural or underdeveloped areas or townships.

Skills development: tenderers must propose programmes for developing skills of unemployed candidates, addressing Eskom's core, scarce and critical skills (aligned with 2020 Government Gazette 43937 occupations in high demand). Candidates must be from all provinces, representative of South Africa's population demographics. Eskom employees and registered learners are excluded. Tenderers bear full cost; Eskom makes no financial contribution.

Job creation: tenderers must propose type and number of jobs to be created and retained in South Africa.

Local procurement content: total spending minus imported component. Where local and imported goods/services are combined, tender response must be separated into components per the Price Schedule.

SDL&I performance security: 2% of every invoice (excluding VAT) retained for the contract duration as security for fulfilment of SDL&I obligations.

Retention release conditions:

• Eskom receives SDL&I progress report(s) from the contractor.
• Fulfilment of all SDL&I obligations.
• Submission of an approved compliance report by the SDL&I Department.

SDL&I penalties:

• 2% of invoice amount for failure to meet SDL&I obligations.
• 2% of contract value for failure to meet SDL&I obligations.

Pricing format: not stated — likely schedule of rates or firm pricing based on the scope.

Bid security / guarantee: not stated for submission; 2% invoice retention applies during contract.

Payment terms: not stated.

Turnover requirement: not stated.

NIPP: mandatory only if imported content equals or exceeds USD 5 million.

CSD registration: not explicitly stated but standard for Eskom tenders — bidders should confirm.

Tax status: not explicitly stated — standard SARS tax compliance expected.

B-bbee:

• Valid B-BBEE certificate from SANAS-accredited verification agency, sworn affidavit, or CIPS affidavit is mandatory for contract award.
• Annual total revenue ≤ R10 million (EME): may submit sworn affidavit.
• Annual total revenue ≤ R50 million (QSE): must comply with all QSE scorecard elements relevant to sector, unless at least 51% black-owned — then sworn affidavit permitted.
• Annual total revenue > R50 million: valid B-BBEE certificate required.
• B-BBEE improvement or retention plan: mandatory within 30 days of contract signature.
• Level 1 at award: maintain Level 1.
• Level 2 or 3 at award: improve or maintain; Level 4 bidders must reach Level 3 by end of Year 1, then improve one level annually.
• Level 5-8 or non-compliant at award: must reach Level 4 by end of Year 1, then improve one level annually from Year 2.

CIDB: not stated (not construction work — electrical refurbishment services).

CIPC: proof of ownership/shareholding (preferably CIPC documentation) required.

Local content: SBD 6.2 and Annex C mandatory if applicable; minimum local production and content thresholds must be achieved in full where stipulated.

Subcontracting: minimum 10% to designated EME/QSE (51% black-owned, rural/township-based).

Sworn affidavit validity requirements:

• Deponent name and ID number must match identity document.
• Designation as director, owner or member must be indicated.
• Enterprise name per CIPC registration and business address.
• Percentages for black ownership, black female ownership, designated groups — no blank spaces.
• Total revenue for year under review, with basis (audited financials or management accounts) indicated.
• Financial year end (day/month/year).
• Single B-BBEE status level (tick applicable).
• Empowering supplier status indicated; QSEs must select basis.
• Deponent and Commissioner of Oaths must sign on same date; affidavit signed in Commissioner's presence.
• Commissioner of Oaths must be independent — cannot be employee or ex officio of the enterprise.

Eskom Generation Engineering requires refurbishment of medium voltage electric motors at Duvha Power Station, Mpumalanga, for a 60-month period. The contract covers units and outside plant. A site visit to verify workshop compliance and capability is mandatory before award.

Closing: 9 November 2026 at 10:00

Note: A mandatory site visit to verify workshop compliance and capability will be conducted before contract award.

Scope: Refurbishment of medium voltage electric motors at Duvha Power Station

Duration: 60 months

Workshop facility requirements:

• Ownership or lease for contract duration
• Covered storage area
• Crane sized for largest motor in scope
• Burn-out ovens (photo required)
• VPI tanks (photo required)
• Curing oven facility
• Coil shop/room (photo required)
• Winding area (photo required)
• Spray booth facility (photo required)
• Cleaning facility
• Balancing machine

Testing capability:

• Test bench: minimum 5000V, 23kV (photo required)
• Test bench maximum current: compare with largest motor current
• High voltage testing equipment: 7.6kV, 14.2kV, 23kV, 31kV per Eskom Document 240-89217674 Section 4.4.2.2.3
• Insulation resistance testing per 240-89217674 Section 4.4.2.2.1
• Phase resistance testing equipment with 0.1% accuracy per 240-89217674 Section 4.4.2.2.2
• Interturn testing equipment per 240-89217674 Section 4.4.2.2.6
• Vibration Analyser Level 2
• Heat exchanger pressure test capability
• Rotor balancing capability

Skill capability (minimum one per discipline):

• Qualified armature rewinder
• Qualified fitter
• Quality control/technical personnel (engineer, technician)
• Site service personnel
• Minimum 2 quality control personnel

Experience and documentation:

• Minimum 12 months company experience in MV motor refurbishment
• Company profile with organogram and contact person
• CV and certificates for key personnel
• Provide ITP and QCP samples
• Failure report sample covering incoming assessment, inspections, testing and failure analysis (within 5 years)
• Minimum 5 years electronic data storage
• Warranty on workmanship

Transport:

• Minimum 1 truck
• Emergency response time: less than 10 hours

Subcontracting:

• No subcontracting allowed for core work
• Certification may be subcontracted
• NDT of journals, shafts, fans may be outsourced
• Shaft repair (micro-welding) and bearing repair may be outsourced

Compliance documents:

• Eskom Document 240-89217674 (refurbishment work instruction)
• Eskom Document 240-87739380 (motor assessment form)
• Eskom Document 240-106628253 (motor welding)
• Eskom Document 240-56361435 (motor transport)
• SANS iec 60034-23

Repair scope limits to be indicated:

• Stator rewinding limit (motor size in MW)
• Largest motor tonnage
• New core, rotor, shaft or fan manufacturing capability

Special capabilities:

• Repair and certification of Ex-rated MV motors (Ex td, na, d/de)
• Bearing oil lubrication system
• Bearing water lubrication system
• Heat exchanger cooling water system

Supplier Quality Management tender evaluation scorecard for Category 1 suppliers. The document is an Excel-based returnable template used by Eskom to evaluate quality management capabilities of bidders for the refurbishment of medium voltage electric motors at Duvha Power Station over 60 months. Bidders must select Category 1 on the Cover tab, which automatically flags applicable requirements, then complete the Returnables tab and submit as signed PDF or locked spreadsheet.

Quality evaluation scorecard with five weighted sections:

• Section A: Quality Management System Requirements — 25% weight
• Option 1 (selected): Valid ISO 9001:2015 certification by an accredited body
• A.1 Product/service scoping on certificate defined and relevant
• A.2 Certificate by approved and authorised certification authority
• A.3 Certification authority has recognised international accreditation
• A.4 Validity (expiry date) of certificate
• Maximum sub-score: 4
• Option 2 (not selected): Evidence of QMS in operation without certification
• Section B: Evidence of QMS in operation — 25% weight
• B.1 Documented roles, responsibilities and authorities (organisation chart and responsibility matrix including quality management function)
• B.2 Control of externally provided processes, products and services (evaluation, selection, monitoring, re-evaluation criteria)
• B.3 Latest internal management system audit report with nonconformity, correction and corrective action reports (objective, scope, criteria, outcomes)
• B.4 Latest external management system audit report not older than 12 months with nonconformity, correction and corrective action reports
• B.5 Records of management review meetings (minutes, attendance registers)
• Maximum sub-score: 5
• Section C: Contract Quality Plan Requirements — 20% weight
• Draft contract quality plan specific to scope of work (Ref ISO 10005)
• Maximum sub-score: 1
• Section D: Quality Control Plan Requirements — 20% weight
• QCP/checklist/ITP as per scope of works (Ref ISO 10005 and 240-105658000)
• Example of ITP or QCP on similar/previous work
• Maximum sub-score: 1
• Section E: User defined additional requirements — 10% weight
• E.1 Form A completed and signed
• E.2 Other requirements as per scope of work/specification
• Maximum sub-score: 2

Scoring method: Percentage = (score obtained / maximum score allocated) × 100% × section weight

Category 1 applies (highest requirement level): requires Form A, ISO certificate, internal and external audit reports, draft CQP and ITP, and defined roles/responsibilities/authorities.

Scope: Refurbishment of medium voltage electric motors at Duvha Power Station

Contract period: 60 months

Location: Duvha Power Station, Mpumalanga

Quality deliverables required (Category 1):

• Form A (completed and signed)
• Valid ISO 9001:2015 certificate with relevant product/service scope
• Internal management system audit report with nonconformity, correction and corrective action reports
• External (certification) management system audit report not older than 12 months with nonconformity, correction and corrective action reports
• Draft Contract Quality Plan specific to scope of work (reference ISO 10005)
• Draft Inspection and Test Plan / Quality Control Plan as per scope of works (reference ISO 10005 and specification 240-105658000)
• Documented information for defined roles, responsibilities and authorities

Reference documents:

• Supplier Contract Quality Requirements Specification: 240-105658000
• Contract Quality Plan: 240-109253698
• ITP reference: 240-109253302
• Quality Scorecard Unique ID: 240-12248652
• Effective date of quality scorecard: 21 January 2022

Quality management:

• ISO 9001:2015 certification required (Category 1)
• Certification must be by an approved and authorised certification authority with recognised international accreditation
• Certificate must be valid (unexpired) and cover the relevant product/service scope

Returnable forms:

• Form A: completed and signed (mandatory)
• Supplier Quality Management Returnables template (select Category 1, complete applicable requirements, save as PDF and sign, or sign and lock sheet before submission)

Reference standards:

• Iso 9001:2015
• ISO 10005 (quality plans)
• Eskom specification 240-105658000