Eskom has issued a tender for the installation of a solar PV rooftop and battery energy storage system (BESS) at the Sunilaws Office Park, East London, in the Eastern Cape.
Deadline: 1 August 2025
This tender invites all qualified service providers to submit proposals for a thorough assessment of an existing rooftop PV installation, provide a detailed design, and supply, install, and commission an additional rooftop PV and BESS system with integration to the existing systems (including generator backup power).
The selected provider will play a critical role in enhancing the facility’s energy efficiency and sustainability through expert evaluation and strategic recommendations. The goal is to optimise energy production, enhance efficiency, and reduce reliance on the electricity grid.
The existing rooftop PV installations have been operational since 2015, generating renewable energy for the Eskom Sunilaws Office Park. Over time, wear and tear, technological advancements, and changes in energy consumption patterns necessitate a thorough assessment of the systems to ensure they continue to meet energy needs effectively.
The currently installed rooftop PV at Sunilaws was designed to supply the load in parallel with the main supply and had a peak load of 165kW. There are eight installed inverters, which are connected to three sets of panels: the carport, Block B roof, and Block C roof. The existing monitoring system is currently malfunctioning.
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The construction includes
•The installation of additional rooftop PV, including cable installation and trunking.
•Excavation and repaving for cable routing.
•The installation of BESS system.
•The upgrading or replacement of the existing inverters to an adequate size.
•The installation of automatic changeovers to the PV and BESS and then to the generator for the integration of the existing and new electrical supply systems
Tenders are to be submitted electronically via the Eskom E-tendering site by the stipulated closing date and time. The documents need to be uploaded under the folders Technical, Commercial, Financial, and Other.
Tender documents can be obtained from the Eskom website.
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Source: https://www.esi-africa.com/tenders/eskom-tender-pv-rooftop-bess-systems/
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