VVUZA

CEMS Testing at Grootvlei Power Station.

Eskom

In plain English

Eskom is seeking suppliers to develop, implement, and maintain a quality management system based on ISO 9001. The tender is open to all existing and potential suppliers who can demonstrate commitment to these quality standards.

Always check the official document
Closing date
28 October 2026
Location
Grootvlei Power Station, between Heidelberg and Villiers next to N3-Grootvlei-Balfour-2410
Estimated value
R 15 000 000
Published
31 August 2026
Tender no.
E3454GXMPGRO

Description

Eskom Holdings SOC Ltd is inviting tenders for the performance of Continuous Emissions Monitoring System (CEMS) full correlation and parallel tests at the Grootvlei Power Station. The project involves dynamic calibration of dust monitors and verification of gaseous emissions monitoring systems to ensure compliance with the National Environmental Management: Air Quality Act. The contract is a 5-year (60-month) NEC3 Term Service Contract. Key deliverables include the submission of a Contract Quality Plan, detailed test reports, and adherence to strict environmental and safety standards. The work requires specialized technical expertise in stack emission testing and must be conducted in accordance with international standards such as ISO 9001 and EN 14181.

What you need to qualify

  • CSD registration — Registration on the Central Supplier Database — required to do business with government.
  • Tax clearance — A valid SARS tax compliance status (PIN) showing your tax affairs are in order.
  • Letter of Good Standing — COID registration and a Letter of Good Standing from the Compensation Fund.

Full requirements

  • Valid CSD registration
  • SANAS accreditation for Stack Emission Testing (ISO/IEC 17025:2017)
  • ISO 9001 compliant Quality Management System
  • Valid SARS Tax Compliance status
  • Proven experience in stack correlation and parallel testing on stacks over 8m
  • Personnel must hold Engineering degree/diploma and Stack Tester certification
  • Valid COIDA Letter of Good Standing

Contact & how to apply

Name: Thandi Mavasa

Email: Mavasapt@eskom.co.za

Phone: 017-779-8689

How to apply: Tenders must be submitted electronically via the Eskom E-tendering portal at https://etendering.eskom.co.za. Documents must be uploaded in PDF format into the designated folders (Technical, Commercial, Financial, and Other). Ensure all submissions comply with the 4GB total size limit.

Download tender documents

Related tenders

General Purpose26 Oct 2026

Emission Monitoring and Testing at Majuba Power Station

Eskom Holdings SOC Ltd seeks tenders for correlation, parallel, and spot checking of emission particulate matter and gas monitors at Majuba Power Station over 60 months. Tasks include statutory correlation tests, stratification surveys, and parallel testing on Units 1-6, with detailed technical reports and calibration certificates required. Compliance with OHS, environmental, and quality management standards, including ISO 9001 and ISO 17025, is mandatory. Bidders must submit a draft contract quality plan and inspection and test plans, demonstrating SANAS-accredited stack testing expertise.

Amasfort road-Volksrust-Volksrust-2470R 12 000 000
Construction & Engineering15 Dec 2026

Repair and Refurbishment at Grootvlei Power Station.

Eskom invites tenders for the service, repair, and refurbishment of mill yoke stems, gearboxes, motor bases, and on-site valve machining at Grootvlei Power Station. The contract is for 60 months, requiring compliance with Eskom specifications and safety standards. Closing date is 15 December 2026.

Grootvlei Power Station-Grootvlei-Grootvlei-2024R 15 000 000
Construction & Engineering15 Dec 2026

Supply and Installation of Ash Plant Pipelines.

Eskom invites tenders for the supply and installation of ash plant pipelines at the Grootvlei Power Station. The contract duration is 24 months, requiring adherence to Eskom specifications and environmental and safety policies. Contractors must appoint personnel with environmental knowledge and ensure quality management standards are met.

Grootvlei Power Station-Grootvlei-Grootvlei-2024R 35 000 000
Construction & Engineering21 Oct 20266d left

Design and installation of Carbon Online Cegrit Sampler.

Eskom invites tenders for the design and installation of a Carbon Online Cegrit Sampler at Lethabo Power Station over two years. The project includes engineering design, manufacturing, and installation to monitor unburned coal in fly-ash. Key deliverables are system installation, commissioning, and handover. The closing date is 21 October 2026, with a non-compulsory meeting on 07 October 2026 via MS Teams.

Vaaldam Road-Vereeniging -Deneysville -1939R 2 500 000
Electrical & Plumbing30 Nov 2026

Supply and Service of LV Switchgear at Grootvlei.

Eskom Holdings SOC Ltd invites tenders for a 60-month contract for the supply, delivery, and refurbishment of GE SA Plus LV switchgear at Grootvlei Power Station. The scope includes inspection, repair, testing, and supply of critical spares for switchgear from 2008-2011. The contractor must maintain the original design base, provide refurbishment reports, functional testing, commissioning, and train 40 employees. Compliance with Eskom’s safety, quality, and environmental standards is required, with 24-hour emergency mobilization. The project supports plant operations until 2027.

Grootvlei Power Station, between Heidelberg and Villiers next to N3-Grootvlei-Balfour-2420R 25 000 000
General Purpose29 Oct 2026

Verification and Maintenance of Instruments at Arnot Power Station

Eskom Holdings SOC Ltd seeks tenders for verification, calibration, maintenance, repair, and supply of portable testing and measuring instruments at Arnot Power Station. The contract is for 36 months, extendable to 60 months, under the NEC3 Term Service Contract (Option A). Services include calibration of air flow, temperature, pressure, and vibration sensors, with deliverables such as calibration certificates and technical reports. Emergency response is required within one hour. The tender closes on 29 October 2026 at 10:00 AM, and bidders must meet an 80% functionality threshold.

Arnot Power Station-Middelburg-Rietkuil-1097R 15 000 000