Monitoring tube leaks in the boiler at arnot power station (units 1-6) for 24 months

Scope: Monitoring tube leaks in the boiler for a period of 24 months (2 years).

Closing date: 3 December 2026 at 08:00 (SAST).

Site visit and/or clarification meeting: details stated in Tender Data; attendance is compulsory if stipulated.

All communication must be directed to the Eskom Representative in writing.

Enquiries: addressed in writing to the Eskom Representative identified in the Invitation to Tender.

Submission: via Eskom Tender Bulletin site on the Eskom E-tendering page.

Submission method: E-tendering via Eskom Tender Bulletin site on the Eskom E-tendering page.

• Upload and finalise the tender by the closing date and time.
• Documents must be in PDF/Excel format, accessible, not corrupt or unreadable.
• No paper submission is permitted for e-tendering.
• Tender documents must be updated in the relevant folders: Technical, Commercial, Financial.
• The tender must be signed electronically.
• The tenderer is responsible for ensuring the submission is finalised before closing.

Returnable forms (all must be completed and submitted by closing):

• Acknowledgement Form: states if the tender is for the whole or part of the scope.
• SDL&I Undertaking: required by contract award.
• Proof of authority to act as agent (if applicable).
• Mandatory tender returnables as stated in the Tender Data.

Disqualification risks:

• Late submissions are not accepted.
• Failure to submit/upload tender documents renders the tender non-responsive.
• Missing mandatory returnables at closing leads to disqualification.
• 100% subcontracting is not permitted.
• Misrepresentation or falsification of information leads to disqualification and possible suspension.

Evaluation stages:

1. Basic compliance: original tender and copy submitted, mandatory returnables present.
2. Pre-qualification criteria (if stipulated in Tender Data).
3. Functionality (if applicable): scored against criteria; must meet minimum threshold stated in Tender Data to proceed.
4. Financial analysis: Eskom assesses financial risk; if risk is too high and no mitigating factors, the tenderer is not considered for award.
5. Price evaluation: in accordance with Tender Data; factors may include CPA, FOREX, commodity exposure, discounts, PV.
6. B-BBEE scoring: based on CSD report or certificate/affidavit.
7. Specific Goals scoring: based on supporting documentation.

Ranking: PPPFA applies; price and Specific Goals scores are added, ranked highest to lowest.

Preference point system: 80/20 or 90/10 as per PPPFA.

Objective criteria (section 2(1)(f)) may be applied if stated in Tender Data.

Reverse e-auction may be used if indicated in the Invitation to Tender.

Scope: Monitoring tube leaks in the boiler for a period of 24 months (2 years).

Location: Mpumalanga.

Category: Construction, specialised construction activities.

SHEQ: proof of safety, health, environment, and quality systems, policies, and capabilities must be provided at closing or by contract award. All SHEQ costs must be reflected in the tender.

Pricing: rates and prices must be in South African Rand, fixed for the contract duration unless otherwise provided.

• Include all duties, taxes (including VAT), and levies applicable 14 days before closing.
• Prices may be subject to correction of arithmetical errors; amount in words prevails.
• No contract price adjustment unless stated in the Invitation to Tender.

Insurance: Eskom may not provide full cover; bidders should seek qualified advice.

Security for performance: if required, bidder must name at least two financial institutions likely to provide the security.

Financial analysis: Eskom may assess financial statements to determine risk.

CSD registration: required; B-BBEE level is scored from CSD report or certificate/affidavit.

B-BBEE: if a pre-qualification criterion, proof (certificate, CSD number, or CSD report) must be provided at closing or the tender is disqualified. For PPPFA point allocation, if no certificate/affidavit is provided or it is fraudulent/expired, the bidder scores zero for B-BBEE points.

CIDB: if stipulated as a qualification criterion, registration with CIDB is required at closing, or capability to register within 21 working days. Proof of registration is mandatory at closing; only proof of application may be accepted at closing, with actual proof required by contract award.

SHEQ: proof of safety, health, environment, and quality systems, policies, and capabilities must be provided at closing or by contract award. All SHEQ costs must be reflected in the tender.

Compliance with legislation: National Treasury Instruction Notes, CIDB Regulations, dtic local content requirements, PPPFA Regulations, Amended B-BBEE Codes, COIDA, OHS Act, and Eskom's SHEQ requirements.

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

Designated materials and thresholds: information must be submitted no later than contract award.

Contract Skills Development Goals (CSDG): applicable to contracts of R5 million or more or CIDB grade 7 or higher, with duration of 12 months or more.

Contract Participation Goals (CPG): applicable to construction works contracts in GB and CE classes, with minimum project duration of 6 months and at least 25% subcontracting expected.

The contract is for monitoring tube leaks in the boiler at Arnot Power Station for a period of 2 years. The contract comprises Parts C1 (Agreements & Contract Data), C2 (Pricing Data), C3 (Scope of Work / Works Information), and C4 (Site Information).

Closing date: 3 December 2026 at 08:00 (from tender record).

No mandatory briefing, site visit, or clarification deadline stated.

Employer: Eskom Holdings SOC Ltd

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

Site address: Arnot Power Station, Private Bag X2, Rietkuil, 1097

Project Manager: To be announced (TBA)

Supervisor: To be announced (TBA)

No email or telephone contacts provided in the document.

Returnable documents (to be completed and submitted with the bid):

• C1.1 Form of Offer and Acceptance: signed offer committing to the contract terms and price.
• C1.2b Contract Data provided by the Contractor: completed with contractor details, key persons, fee percentages, activity schedule reference, and tendered total.
• C2.2 Activity Schedule: priced list of activities (lump sum per activity).
• C1.3 Proforma Guarantees: to be provided after award.
• Pricing assumptions (C2.1) may also be required.

Submission method and address: not stated in the document.

Closing time: 08:00 on 3 December 2026 (from tender record).

Scope: Monitoring tube leaks in the boiler at Arnot Power Station for a period of 24 months.

Key activities (from activity schedule):

• Installation of sleeves, including material preparation, cutting, and machining.
• Welding in accordance with approved procedures.
• Inspection and non-destructive testing (NDT) of welded joints.
• Submission of welding procedures, welder qualifications, material certificates, inspection records, and NDT reports.
• Site establishment: ablutions, office containers, kitchen, store, water and electricity.

Personnel required (monthly for 24 months):

• Project Manager (1)
• Supervisor (1)
• Safety Officer (1)
• Site Engineer (1)
• Lead Electrician (1)
• C&I Artisan (4)
• Boiler Maker (1)
• Fitter (1)
• General Workers (4)

Works Information is in Part C3 (not provided in this extract). Site Information in Part C4.

Contractor must provide key persons with names, jobs, responsibilities, qualifications, and experience. CVs are to be appended to a tender schedule. The required personnel include Project Manager, Supervisor, Safety Officer, Site Engineer, Lead Electrician, C&I Artisans, Boiler Maker, Fitter, and General Workers. No minimum years of experience stated.

Quality non-conformance is included in the risk register. Welded joints require inspection and non-destructive testing (NDT) in accordance with approved inspection and test plans. Welding procedures, welder qualifications, material certificates, inspection records, and NDT reports must be submitted. Defects date is 52 weeks after Completion; defect correction period is 1 week.

Pricing under Option A: lump sum per activity on the Activity Schedule. Payment is made only for completed activities (no part payment). The Activity Schedule is a pricing document only; works are performed in accordance with the Works Information. Pricing assumptions: work is broken into activities, each priced as a lump sum. The activity schedule includes items such as sleeves, welding, NDT, site establishment, and personnel (monthly rates for 24 months). No rates or totals are provided in the extract.

Pricing method: NEC3 ECC Option A – Priced contract with activity schedule. Each activity is a lump sum; payment is made only for completed activities.

Payment terms:

• Assessment interval: 25th day of each month (or as per task order).
• Payment period: 30 days after receipt of a correct and undisputed tax invoice.
• Interest on late payment: prime rate of Standard Bank of South Africa.

Retention: 5% (secondary Option X16).

Delay damages: R2,000 per day, up to a limit of R50,000 (Option X7).

Price adjustment for inflation (Option X1) with proportions: 15% fixed, 20% labour, 40% electrical material, 15% mechanical material, 5% transport, 5% CPI.

VAT: 15% must be added to prices. Employer VAT number: 4740101508.

Tax invoice: Contractor must submit a tax invoice within one week of receiving a payment certificate.

No bid security or financial capacity threshold stated.

B-bbee:

• Contractor must notify the Employer within 7 days of any change in B-BBEE status.
• Updated verification certificate and supporting documentation must be submitted within 30 days of notification.
• A decrease in B-BBEE status after contract date may lead to renegotiation or termination.
• No minimum B-BBEE level specified for bidding.

CIDB: Registration number may be stated on the Form of Offer and Acceptance (optional). No minimum grade required.

Ethics: Contractor must not engage in corrupt, fraudulent, collusive, coercive, or obstructive actions (Z12). Violation may result in termination.

Joint ventures: Jointly and severally liable. Must notify the Project Manager of the authorised key person within 2 weeks of contract date.

Confidentiality: No disclosure of contract information without consent.

Asbestos: Employer manages asbestos; if discovered, work stops until safe. Removal by registered contractor at Employer’s expense.

Nuclear liability: Employer indemnifies contractor (relevant if work involves Koeberg, but contract is at Arnot).

No CSD registration, tax clearance, or local content requirements stated.

Contractor must take all reasonable precautions for health and safety. The Employer may appoint the Contractor as Principal Contractor under the Construction Regulations 2014 (OHS Act). The Contractor warrants that the total of Prices includes sufficient amount for compliance with health and safety laws and regulations. A Safety Officer is included in the required personnel. Asbestos management: if asbestos is identified, work stops until area is declared safe; removal by registered contractor at Employer’s expense.

Contractor must comply with all applicable environmental laws and regulations. Asbestos removal and disposal must be done in line with South African legislation. Weather data (cumulative rainfall, days with rain >10mm, min temp <0°C, snow) is recorded for compensation events; one-in-ten-year return data provided in Annexure A.

Contract: NEC3 Engineering and Construction Contract (ECC3) April 2013, with main Option A (priced contract with activity schedule), dispute resolution Option W1, and secondary Options X1 (price adjustment), X2 (changes in law), X7 (delay damages), X16 (retention), X18 (limitation of liability), and Z (additional conditions).

Key terms:

• Completion date: To be agreed (TBA).
• Access dates: TBA for each unit.
• Defects date: 52 weeks after Completion.
• Defect correction period: 1 week.
• Programme: First programme within 2 weeks of contract date; revised every 4 weeks.
• Payment: 30 days after correct undisputed tax invoice; assessment on 25th of month.
• Retention: 5%.
• Delay damages: R2,000/day, limit R50,000.
• Limitation of liability: Contractor’s liability for indirect/consequential loss is R0; total liability limited to total of Prices (except excluded matters).
• Termination: As per core clause 91, with additional ground for business rescue (Z10).
• Confidentiality (Z4): No disclosure without consent; images require prior written approval.
• Ethics (Z12): Prohibited actions (corrupt, fraudulent, collusive, coercive, obstructive) may lead to termination.
• Insurance: Contractor provides insurance per Table A; Employer provides per Table B.
• Asbestos (Z15): Employer manages; contractor stops work if asbestos found; removal by registered contractor at Employer’s expense.
• Nuclear liability (Z14): Employer indemnifies contractor (applicable to Koeberg).
• Joint ventures (Z2): Jointly and severally liable; must notify key person within 2 weeks.
• B-BBEE change (Z3): Notify within 7 days; updated certificate within 30 days; decrease may lead to renegotiation or termination.
• Tax invoice (Z7): Submit within 1 week of payment certificate; include Employer VAT number 4740101508.
• Law of contract: Republic of South Africa.
• Language: English.
• Period for reply: 1 week or as agreed.

The document does not contain evaluation criteria. The risk register includes: adverse weather, quality non-conformance, safety/environmental/permit delays, lead times of materials, pulling of cables to EDS, scaffolding, and early warnings.

The bidder must complete and sign Form A to acknowledge acceptance of Eskom Supplier Quality Requirements (specification 240-105658000) and ISO 9001.

Closing date: 3 December 2026 at 08:00 UTC.

Returnable documents:

• Form A (acknowledgement of quality requirements): must be completed and signed to acknowledge Eskom Supplier Quality Requirements (240-105658000) and ISO 9001.

Submission method and address are not specified in the document.

Pre-contract award quality requirements under Category 1 (clause 3.5.2 of specification 240-105658000) must be met.

Only one category may be selected; Categories 2, 3, and 4 do not apply.

ISO 9001 compliance across clauses 4 to 10 is required.

The acknowledgement form must be completed and signed by the tenderer's quality representative.

Scope: Monitoring tube leaks in the boiler for a period of 24 months.

Quality standards: Work must comply with Eskom Supplier Quality Requirements (specification 240-105658000) and ISO 9001.

The tender is for monitoring tube leaks in the boiler at Arnot Power Station for a period of 24 months. The work involves supplying, configuring, installing, and commissioning a high-temperature flue-gas humidity measurement analyzer with OEM support. The analyzer must measure 0–100% H2O, operate at sample-gas temperatures of at least 380°C, have IP65 enclosure protection, and integrate with the ABB P14 DCS. The tenderer must provide OEM authorisation or partnership letters and evidence of suitability for harsh flue-gas conditions.

Closing date: 3 December 2026 at 10:00

Briefing session: 23 November 2026 at 10:00 at Arnot Induction hall (non-compulsory)

Clarification queries deadline: 10 working days before closing date

Tender validity: 120 working days from closing date and time

Eskom Representative:

Name: Mokhele Ramabusa

Telephone: (013) 297 9849

Email: [email protected]

Fraud hotline: 0800 11 2722

Email: [email protected]

Submission: via Eskom e-tendering site (no physical address)

Service/delivery location: Arnot Power Station, Mpumalanga (briefing venue: Arnot Induction hall)

Submission method: electronic via Eskom e-tendering site (no hard copies).

Documents must be uploaded in PDF format; pricing schedule in PDF and Excel.

Maximum upload size per document: 500 MB; total submission: 4 GB.

No zip/compressed files allowed.

Submission status must be marked as complete.

Returnable forms (must be completed, signed where required, and submitted by closing):

• Annexure A: Authorisation Form
• Annexure B: Acknowledgement Form
• Annexure C: Tenderers Particulars
• Annexure D: Integrity Pact Declaration
• Annexure E: CPA for local goods/services
• Annexure G1–G4: SBD 6.2 Declaration Certificate for Local Production and Content
• Annexure H: SBD 1 Invitation to Bid
• Annexure I: SBD 6.1 Preference Points Claim Form
• Annexure J: SBD 4 Bidders Disclosure
• Tax Evaluation Questionnaire
• E-tendering Help Manual acknowledgement form
• Completed NEC contract
• Completed pricing schedule
• For joint ventures: letter of intent or valid JV agreement, single designated bank account details

Disqualification risks:

• Any mandatory returnable not submitted, incomplete, or unsigned by closing.
• Tenders received after closing time.
• Non-compliance with eligibility criteria (e.g., sanctions list, conflict of interest, multiple submissions, unauthorised signatory, restricted by National Treasury or Eskom, subcontracting 100% of scope).

Pre-qualification (mandatory):

• CSD registration (CSD number or report)
• CIDB grading designation 07 EP (or capability to be registered before evaluation)
• Tax compliance: SARS e-filing PIN or tax clearance certificate

Evaluation stages:

1. Basic compliance: complete tender with all required information (commercial, financial, safety, quality, environmental, SDL&I, technical).
2. Mandatory technical evaluation: OEM authorisation and analyzer performance requirements (pass/fail).
3. Scoring: 80/20 preference point system.

• Price: scored out of 80 points.
• B-BBEE status level: scored out of 20 points (Level 1 = 20, Level 2 = 18, Level 3 = 14, Level 4 = 12, Level 5 = 8, Level 6 = 6, Level 7 = 4, Level 8 = 2, non-compliant = 0).

If B-BBEE documentation is not provided, the tenderer scores 0 for specific goals and only price points apply.

Specific goals (part of B-BBEE scoring): skills development, local procurement, job creation. Tenderers must submit proposals for these.

Contract award to the tenderer scoring the highest total points.

Scope: Monitoring tube leaks in the boiler for a period of 24 months (2 years) at Arnot Power Station.

Mandatory technical requirements (pass/fail):

• Tenderer must submit either a valid OEM authorisation letter confirming authorisation to supply, configure, install, and commission the proposed analyzer model, OR a project-specific OEM partnership/support letter confirming engineering validation, application support, commissioning support, and access to proprietary technical resources.
• The letter must be on OEM letterhead, signed by an authorised OEM representative, and confirm OEM support for the high-temperature flue-gas humidity measurement application.
• OEM-issued datasheets, product certificates, or test reports demonstrating:
• Measurement range: 0–100 vol% H2O
• Suitability for sample-gas temperature of at least 380°C
• Converter/transmitter enclosure protection: minimum IP65
• Continuous measurement capability suitable for industrial flue-gas service
• Suitable output/communication interface for integration with ABB P14 DCS
• OEM-issued evidence confirming compatibility with flue gas containing H2O, CO2, SO2; suitability for high fly-ash/dust loading; appropriate thermal protection; wear/erosion/contamination protection; suitable materials of construction.
• A clause-by-clause compliance schedule identifying the applicable OEM document and page number for each requirement.

Additional scope details are in the separate Scope of Work attachment.

Skills development methodology: Tenderers must propose skills development for unemployed candidates, specifying skill type, entry level, exit level, and number of candidates. Candidates must be from all provinces and representative of SA demographics. Tenderers bear full cost; Eskom makes no financial contribution. Tenderers may approach SETAs for grants and SARS for tax rebates.

Local procurement methodology: Tenderers must propose procurement from designated groups (black owned, black women owned, black youth owned, black persons with disability) as a proportion of local procurement content. Eskom targets: black owned 4%, black women owned 3%, black youth owned 2%, black persons with disability 1%.

Pricing schedule is part of the NEC contract and must be submitted in PDF and Excel format. The schedule must separate local and imported components of goods/services. Local procurement content is total spending minus imported component. Eskom target is 100% local procurement. Tenderers must also propose the type and number of jobs to be created and retained in South Africa as a direct result of the contract.

Pricing format: Completed pricing schedule in the NEC contract, submitted in PDF and Excel format.

Payment terms:

• Contracts valued below R50,000,000 (including VAT): payment within 30 days of receipt of undisputed invoice.
• Contracts valued above R50,000,000 (including VAT): payment within 60 days of receipt of undisputed invoice.

No bid security or performance bond required (not applicable).

Financial viability: Annual financial statements (signed, including statement of financial position, comprehensive income, changes in equity, cash flows, notes) must be submitted as a contractual requirement prior to award. For unincorporated JVs, each partner must submit. Public interest score and ITA34C required for South African entities not audited.

Local procurement content: Tenderers must separate local and imported components in the pricing schedule. Eskom target is 100% local procurement.

Mandatory contractual requirements (must be met prior to award):

• CSD registration (CSD number or CSD report)
• Tax compliance: SARS e-filing PIN or certified tax clearance certificate (foreign suppliers with no SA footprint complete SBD 1 only)
• CIDB grading: 07 EP (or capability to be registered before evaluation)
• B-BBEE: valid certificate from SANAS-accredited agency, sworn affidavit (for EMEs/QSEs), or CIPS affidavit; plus proof of ownership/shareholding (CIPC), certified ID copies of shareholders, proof of disability where applicable
• Safety: comply with OHS Act and Eskom SHE procedures; submit SHE returnables:

1. Annexure B (completed and signed)
2. Baseline SHE Risk Assessment (routine and non-routine tasks, ergonomic and psychosocial stressors)
3. Competency evidence (training, knowledge, experience, qualifications)
4. Valid Letter of Good Standing from Compensation Commissioner or licensed mutual company; if single employee, insurance letter covering accidental death and disability to R500,000
5. Health and Safety Policy
6. SHE costing (funds allocated for SHE based on scope and risk)
7. Health and Safety Plan (scope/project-based, including fatigue management)

• Quality: comply with supplier quality management specification 240-105658000 (previously QM58) and ISO 9001 requirements
• Environmental: comply with legal requirements (NEMA), monitor emissions (PM, SO2, CO), water conservation, detect and repair leaks promptly
• Employment Equity: if applicable, proof of compliance with Employment Equity Act (submission of report to Department of Labour)
• Local content: complete SBD 6.2 forms (Annexures G1–G4)

Additional contractual requirements (may be assessed after evaluation):

• Financial viability (submission of financial statements)
• SHEQ requirements
• SDL&I requirements

Health and safety requirements (contractual, not evaluation):

• Comply with OHS Act and Eskom SHE procedures.
• Submit SHE returnables prior to award:

1. Annexure B (completed and signed)
2. Baseline SHE Risk Assessment (including routine/non-routine tasks, ergonomic and psychosocial stressors)
3. Competency evidence (training, knowledge, experience, qualifications)
4. Valid Letter of Good Standing from Compensation Commissioner or licensed mutual company; if single employee, insurance letter for accidental death and disability to R500,000
5. Health and Safety Policy
6. SHE costing (funds allocated based on scope and risk)
7. Health and Safety Plan (scope/project-based, including fatigue management)

• Risk mitigation for driving: only authorised drivers, roadworthy vehicles, alcohol/drug testing, route permits and operating licenses.

Environmental requirements:

• Monitor tube leaks to prevent combustion inefficiencies that may increase emissions of Particulate Matter (PM), Sulphur Dioxide (SO2), and Carbon Monoxide (CO).
• Detect and repair tube leaks promptly to minimise water losses; monitor boiler make-up water consumption for unusual increases.
• Comply with the National Environmental Management Act (NEMA) and any other legal requirements prescribed by Arnot Power Station.

Contract: NEC3 ECC (Engineering and Construction Contract). Duration: 24 months. Payment terms: 30 days for contracts below R50M (incl VAT), 60 days for contracts above R50M. No performance security required. Eskom reserves the right to negotiate with preferred bidders. Subcontracting: discouraged with subsidiary companies; must be declared if applicable. Joint ventures: must have a valid JV agreement with joint and several liability, single bank account, and each member registered with CIDB. No alternative tenders allowed. No public tender opening.

Additional evaluation criteria: Mandatory technical evaluation (pass/fail) based on OEM authorisation and analyzer performance requirements as described in technical specifications. Tenderers must submit a clause-by-clause compliance schedule. Failure to meet mandatory technical criteria results in disqualification.

Supply goods or execute works as described in the agreement.

Fraud and corruption reporting:

• Email: [email protected]
• Telephone: 0800 11 2722

Quality management:

• Goods/works/services are subject to Eskom's approval; Eskom may inspect and/or test at any stage.
• If the Supplier fails to comply, Eskom may reject any part by written notice, specifying the reason and whether replacement or rework is required.
• For rejected goods, Eskom may return them at the Supplier's risk and expense; the Supplier must pay any money paid for goods not replaced, plus costs of returning and obtaining replacements from a third party.
• For rejected works/services, the Supplier must correct non-conformances/defects as indicated by Eskom. If the Supplier delays, Eskom may have the defect corrected by a third party at the Supplier's cost.

Pricing schedule:

• Prices or rates may include an amount for price adjustment calculated according to a formula stated in the agreement.

Payment terms:

• Eskom pays within 30 days after receiving a correct tax invoice.
• Eskom's VAT registration number (4740101508) must appear on the tax invoice.
• Prices or rates may include a price adjustment calculated according to a formula stated in the agreement.
• Payment may be made in any currency; one exchange rate converts to ZAR.
• The Supplier's CPA (IG) form must be completed.
• No payment is made if the Supplier does not provide the goods/services/works as stated in the agreement.

Statutory requirements:

• The Supplier must adhere to all statutory requirements relevant to the agreement.
• The agreement is governed by South African law; parties submit to the jurisdiction of South African courts.
• Eskom's General Conditions of Purchase apply unless expressly agreed otherwise in writing.
• The Supplier must state in the tender whether delivery cost is included in the price; otherwise it is deemed included.
• The Supplier must clearly mark each consignment with the Supplier's name and destination details, include a packing note, send an advice note to Eskom, send a detailed tax invoice after delivery/completion, and state the agreement number on all communications.

Contractual terms:

• The Supplier indemnifies Eskom against all claims arising from the Supplier's negligence, infringement of rights, breach of statutory duty, defective design, materials or workmanship.
• The Supplier warrants that goods/works/services are fit for purpose and free from defects for one year from acceptance (unless otherwise stated). The Supplier must rectify defects/non-conformances within an agreed period at no cost to Eskom.
• Neither party may cede or delegate rights/obligations without the other's written consent, except Eskom may cede to subsidiaries or restructured entities on written notice.
• The Supplier must adhere to all statutory requirements; the agreement is governed by South African law.
• If either party breaches and fails to remedy after written notice, the non-defaulting party may terminate the agreement.
• Eskom may terminate at any time if the Supplier defaults, becomes bankrupt, or is in financial circumstances that prejudice proper performance.
• Eskom expects the highest standard of ethical behaviour from all suppliers.

Pre-qualification: Valid ISO 9001 or ISO 17025 certification from an ISO-accredited body, with the product/service scope defined and relevant, and the certificate unexpired.

Returnable documents that will be evaluated:

• Form A: must be completed and signed.
• Draft Contract Quality Plan (ref ISO 10005).
• Draft Inspection and Test Plan (ITP) or Quality Control Plan (QCP) for similar previous work.

Scoring sections (each item scored 1 point):

• Section A (4 points): Valid QMS certification with relevant scope, from an approved authority with international accreditation, and unexpired.
• Section B (5 points): Documented evidence of QMS in operation — organisation chart and responsibility matrix, control of external providers, internal audit report, certification audit report (not older than 12 months), and management review records.
• Section C (1 point): Draft Contract Quality Plan specific to the scope.
• Section D (1 point): Draft QCP/ITP for similar work.
• Section E (2 points): Form A completed and signed; any other requirements per scope.

Total possible score: 13 points.

Monitoring tube leaks in the boiler for a period of 24 months (2 years).

Scope location: Eskom, Mpumalanga.

ISO 9001 or ISO 17025 certification from an ISO-accredited body is mandatory. The certificate must have the relevant product/service scope and be unexpired.

The tender is for monitoring tube leaks in the boiler for a period of 24 months. The document provided is an OHS acknowledgement form; no further scope details are included.

Returnable documents:

• Annexure B (Eskom identifier 240-77471499 Rev 3): Acknowledgement Form for Eskom OHS legal and other requirements. Must be signed by an authorised person (CEO, Director, or Managing Director) and witnessed by two witnesses, confirming receipt and understanding of the OHS requirements and consequences of non-compliance.

OHS compliance requirements:

• The bidder must comply with the following documents when working at or rendering a service to Eskom:
• Eskom contractor Health and Safety requirements standards 32-136
• OHS specification/requirements provided
• Occupational Health and Safety Act
• Compensation for Occupational Diseases and Illnesses Act
• After contract award, the contractor must fully align its processes to Eskom's OHS requirements (policies, procedures, standards, etc.).
• Penalties will be enforced for non-conformance to Eskom or statutory OHS requirements.
• All employees (contractors/suppliers) must undergo the relevant Eskom induction.
• The main contractor is accountable for managing its subcontractors' OHS compliance, including:
• Demonstrating the process and selection criteria for appointing subcontractors.
• Notifying Eskom before appointing subcontractors.
• Ensuring subcontractors have adequate resources and competencies.
• Monitoring subcontractors through audits and assessments.
• Providing grounds for termination of subcontractor work.
• Dealing with all non-conformances directly with the main contractor.
• Eskom may request testimonials/references and contact details of previous clients (including Eskom) for similar work.

OHS requirements (effective May 2021):

• The bidder must understand and comply with the following:
• Eskom contractor Health and Safety requirements standards 32-136
• OHS specification/requirements provided
• Occupational Health and Safety Act
• Compensation for Occupational Diseases and Illnesses Act
• After award, the contractor must align its processes to Eskom's OHS policies, procedures, and standards.
• Penalties apply for non-conformance to Eskom or statutory OHS requirements.
• All employees (contractors/suppliers) must undergo the relevant Eskom induction.

Main contractor responsibilities regarding subcontractors:

• Must demonstrate the process and selection criteria for appointing subcontractors.
• Must notify Eskom before appointing subcontractors for work commencement.
• Must ensure subcontractors have adequate resources and competencies.
• Is accountable for ensuring subcontractors comply with legal and Eskom requirements.
• Must monitor subcontractors through audits and assessments for OHS compliance.
• Must provide grounds for termination of subcontractor work.
• All non-conformances by subcontractors are dealt with directly with the main contractor via performance and penalty processes.
• Eskom reserves the right to verify compliance and may request testimonials/references and contact details of previous clients.

Eskom requires a new standalone system of high-temperature in-situ flue gas humidity monitors at Arnot Power Station to address a critical gap in the existing acoustic-based tube leak detection system. The project covers engineering design, supply, installation, integration, and commissioning of monitors on both sides after the Economizers of all six units, integrated into the ABB P14 DCS. The tender is open, and this document defines the technical evaluation strategy.

Mandatory technical gates (non-compliance disqualifies):

• Valid OEM authorisation letter or project-specific OEM partnership/support letter on OEM letterhead, signed, confirming support for high-temperature flue-gas humidity measurement.
• OEM-issued datasheets/certificates proving: measurement range 0–100 vol% H2O, sample-gas temperature ≥380°C, converter enclosure IP65, continuous measurement, suitable output for ABB P14 DCS integration.
• OEM evidence of probe suitability for flue gas containing H2O, CO2, SO2, high dust loading, thermal/wear/erosion protection, and suitable materials.

Qualitative evaluation criteria (scored 5,4,2,0) with sub-weightings:

• Technical Solution and Design Compliance Package (55%): Overall system concept (40%), power-supply design (20%), probe pocket/adapter concept (20%), installation methodology (20%).
• ABB DCS Integration and Support (10%): Integration design (50%), ABB execution/support arrangement (50%).
• Quality Assurance, Testing and Documentation (5%): Preliminary QCP/ITP framework (40%), testing/commissioning strategy (30%), calibration/documentation traceability (30%).
• Relevant Experience and Project Execution (20%): Relevant project experience (80%), project programme (20%).
• Product Lifecycle, Spare Parts and Continuity of Support (10%): OEM lifecycle commitment (50%), supply-chain resilience (50%).

Minimum technical threshold: 75% weighted score to proceed to commercial evaluation.

Unacceptable exceptions/conditions:

• Any exception to mandatory ABB OEM support for DCS integration.
• Any condition limiting contractor liability for design/integration.
• Any exception to mandatory 10-year OEM support.
• Any condition limiting warranty coverage.
• Any exception to minimum performance specs (0–100% H2O, ≥380°C, IP65).

Unacceptable technical risks:

• Unverified non-OEM hardware/software.
• Incomplete DCS interface design.
• Installation requiring extended unplanned outages.
• Failure to demonstrate probe suitability for harsh flue gas.
• Lack of evidence for 10-year OEM support.

Acceptable qualifications:

• OEM-supported probe protector solution differing from SOW example but certified.
• Probe with >380°C capability using alternative materials with OEM certification.
• Project-specific Letter of Intent from ABB pending contract award, explicitly committing to full DCS integration scope.

Eskom requires engineering design, supply, installation, integration, and commissioning of a standalone high-temperature in-situ flue gas humidity monitoring system at Arnot Power Station.

• Location: Left-Hand (LH) and Right-Hand (RH) sides after the Economizers of all six (6) units.
• The system must integrate directly into the existing ABB P14 Distributed Control System (DCS).
• The project addresses a critical gap in the existing acoustic-based tube leak detection system.
• The solution must be reliable and fully integrated to enhance plant safety and reliability.
• The installation must be completed within short opportunistic boiler tube leak outages or approved cold-reserve opportunities (assumed one-week window).

Bidders must provide:

• Overall system concept: High-Level Concept Design Report, preliminary system architecture, Functional Design Description, equipment list, signal/interface schedule, assumptions/exclusions.
• Power-supply design: Preliminary philosophy, single-line diagram, equipment load schedule, isolation/protection philosophy, cable types.
• Probe pocket and flanged adapter concept: Preliminary general-arrangement drawing, materials of construction, sealing/mounting method, instrument hook-up, process for site measurement and welding procedure qualification.
• Installation methodology: Preliminary method statement, sequence of work, crew size/skills/shift arrangement, identification of outage-dependent vs on-load activities, estimated duration of critical activities, mobilisation strategy, contingency/recovery arrangements, site-access/scaffolding/lifting/permit assumptions.
• The methodology must demonstrate that outage-critical work can be completed within a one-week window.

Bidders must demonstrate proven experience in delivering comparable analyzer or tube-leak-detection projects in coal-fired power stations or similarly harsh industrial environments.

• For each reference project, provide: contract/purchase order/completion certificate, project description and technology supplied, bidder's actual scope and role, plant type and operating environment, completion date, client contact details, confirmation of whether the proposed OEM and key subcontractors were involved.
• Scoring: 5 points for two or more successfully completed humidity-based TLD or comparable high-temperature in-situ flue-gas analyzer projects in coal-fired plants; 4 points for one directly comparable project or multiple high-temperature in-situ analyzer projects in harsh industrial applications; 2 points for general analyzer or acoustic TLD experience without directly comparable high-temperature humidity-measurement experience; 0 points for no verifiable relevant experience.
• A logic-linked Level 2 or Level 3 project programme must be submitted, covering design/approval stages, long-lead procurement, FAT, delivery, installation, commissioning, outage-dependent activities, key dependencies/critical path, indicative resource requirements, and assumptions regarding access and outage dates.

The tender references ISO 9001 (Quality Management Systems) as an informative standard.

• Bidders must submit a preliminary project-specific Quality Control Plan (QCP) and Inspection Test Plan (ITP) framework, including hold/witness/review points, document-review and non-conformance processes, and a list of quality documentation for the final data book.
• A testing and commissioning strategy covering SIT/SAT philosophy, test stages, indicative test sheets, acceptance criteria, DCS point-to-point verification, and defect management is required.
• Calibration and documentation traceability methodology must include calibration standards, intervals, certification requirements, and a data-book compilation/handover process.

Mandatory evidence:

• OEM authorisation letter or project-specific OEM partnership/support letter (on OEM letterhead, signed, identifying tenderer and analyzer model, confirming OEM support for high-temperature humidity measurement).
• OEM-issued datasheets, product certificates or test reports demonstrating: 0–100 vol% H2O measurement range, operation at sample-gas temperature ≥380°C, converter enclosure IP65, continuous measurement, suitable output/communication interface for ABB P14 DCS.
• OEM-issued evidence of probe compatibility with flue gas containing H2O, CO2, SO2, high fly-ash/dust loading, thermal protection, wear/erosion/dust-ingress protection, and suitable materials.
• Clause-by-clause compliance schedule identifying applicable OEM document and page number for each requirement.

B-BBEE minimum level: 5 (as stated in document).

Unacceptable exceptions:

• Any exception to mandatory ABB OEM support for DCS integration.
• Any condition limiting contractor liability for design/integration.
• Any exception to mandatory 10-year OEM support.
• Any condition limiting warranty coverage.
• Any exception to minimum performance specifications (0–100% H2O, ≥380°C, IP65).

The technical evaluation uses a minimum weighted final score threshold of 75% to proceed to commercial evaluation. The evaluation includes mandatory gates (OEM authorization, performance compliance, harsh environment suitability) and qualitative criteria scored 5,4,2,0 across five categories: Technical Solution and Design Compliance Package (55%), ABB DCS Integration and Support (10%), Quality Assurance, Testing and Documentation (5%), Relevant Experience and Project Execution (20%), and Product Lifecycle, Spare Parts and Continuity of Support (10%). Unacceptable exceptions and risks are defined.

The contractor submits documents to the employer as deliverables for completing or starting each activity. The employer also submits documents to the contractor as deliverables. Documents are maintained by either the contractor or the employer and are available to the other party on request.

The project involves monitoring tube leaks in the boiler at Arnot Power Station (Units 1-6) using Humidity Based Economizer Boiler Tube Leak Detectors interfaced with the ABB P14 DCS. The contract period is 24 months (2 years).

The contractor is responsible for submitting documents to the employer as deliverables for completing or starting each activity.

Document types required across the project phases (detailed engineering, procurement and installation, commissioning, optimization, project completion) include:

• Operating training manuals
• Operating philosophies
• Function input/output block diagrams
• Limits of supply and services
• Detailed mechanical, electrical, and C&I hook-up drawings
• Instrument schedules
• List of all field device parameters and calibration settings
• Field device selection (part numbers per KKS)
• Control philosophies (control narratives)
• Control loop schematics
• Sequence flow drawings
• Functional logic diagrams
• Detailed I/O list and channel assignments
• List of all automation system parameters and calibration settings
• Panel internal equipment schedules, connection/wiring diagrams, and power distribution
• Cable concepts from power supplies to field instrumentation and from field instrumentation to addressable IO modules
• Design and routing reports
• Cable and termination schedules
• Field installation philosophy
• Mechanical hook-up template
• Power distribution philosophy
• Earthing drawings
• 240V/24V power distribution drawings
• Pre-FAT test reports, FAT test procedures, logical FAT test procedures, SIT test procedures, QAT test procedures, cold commissioning procedures
• Final FAT, logical FAT, SIT, cold commissioning, and QAT reports
• Completion certificates
• Training manuals, plant operating manuals, standard equipment operating manuals, maintenance manuals, systems diagnostic/maintenance manuals
• Catalogues and brochures
• Engineering and maintenance procedures schedules and procedures
• Recommended spares holdings schedules
• Bill of quantities
• Technical clarification meeting minutes
• Engineering program (Primavera)
• Plant coding philosophy
• Signal description philosophy
• OEM best practices
• Total cost of ownership calculation and report
• Life cycle management strategy
• Index and master register of documents
• Document synopsis
• Training schedules and prospectus
• Change management procedures
• Inventory of removed equipment

Document formats include Word, Excel, CAD, PDF, and Primavera.

For the Humidity Based Economizer Boiler Tube Leak Detectors to ABB P14 DCS interface (Units 1-6) at Arnot Power Station, the limits of supply and services cover:

• P14 DCS mimics and alarms
• Trunk cable
• Local indication
• Field cabling
• Power supply and power supply cable
• Field instrument

Each item is assigned responsibilities (C = Contractor, E = Employer) across specification, location details, connection details, detailed design, design review, manufacture and supply, erection/installation, and commissioning/testing.

rewritten content or null

Monitoring tube leaks in the boiler for a period of 24 months (2 years).

Returnable document: Supplier Declaration of Interest Template (Eskom form). Must be completed and signed under oath, disclosing any conflict of interest involving Eskom employees or directors, including private work, close family relationships, associates, business courtesies, and other consulting services rendered to Eskom or related entities. A false declaration may result in action by Eskom.