Installation of backup power supply systems to keep online water quality instruments at Barnardsvlei, Hartebeesthoek Reservoir and guard houses operating during power outages. Full specifications are in the tender document package, which could not be extracted for this summary.
Rand Water has issued a tender for the installation of backup power supply systems at three types of sites: the Barnardsvlei online water quality instruments, the Hartebeesthoek Reservoir, and associated guard houses. The objective is to ensure continuous power to monitoring equipment and site facilities so that water quality data is not lost and site security and operations are maintained during mains power interruptions. Because Rand Water supplies bulk potable water to a large part of Gauteng, reliable monitoring at its reservoirs and treatment-related assets is operationally important.
The tender document package (10418532.zip) was not readable for this analysis, so the exact scope, equipment specifications, quantities, and site-specific requirements cannot be confirmed here. Based on the title and the nature of the work, the scope will typically include supply, delivery, installation, testing and commissioning of backup power equipment such as uninterruptible power supplies (UPS), battery banks, and possibly standby generators or solar-assisted systems, together with the associated changeovers, cabling, earthing, protection devices, and enclosures. It may also require integration with existing instrumentation and communication equipment, and handover documentation such as as-built drawings, operating and maintenance manuals, and training. Bidders should confirm the full Bill of Quantities, technical specifications, site access conditions, and any maintenance or warranty obligations directly in the tender documents before submitting a bid.
For contractors, this is a specialised electrical installation opportunity in a water utility environment. Successful bidders will need to demonstrate experience with backup power and instrumentation work, compliance with the Occupational Health and Safety Act and the Electrical Installation Regulations (including Certificates of Compliance), and suitable CIDB registration for the grading and value of the work. Given the draft status of the listing and the closing date of 24 November 2026, interested businesses should verify the tender status on eTenders, download and review the full document package, and register any clarification questions with Rand Water within the prescribed period.
This tender is most suitable for registered electrical contractors and power systems installers with CIDB registration at a grading that covers the estimated value, and with prior experience in UPS, battery backup, or standby power installations. Firms with instrumentation, SCADA or control-systems experience in water, industrial or utility environments will be well placed. Companies that can provide Certificates of Compliance, OHS compliance records, and evidence of similar completed projects should apply. Businesses without electrical installation capability, or those that cannot meet the CIDB and compliance requirements, are unlikely to be suitable. Bidders should review the full tender documents before deciding whether to proceed.
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