The Cape Agency For Sustainable Integrated Development In Rural Areas (Casidra) has issued a tender for the supply and installation of a borehole pump with fittings and a solar system to provide electricity for a pump near Bitterfontein, Western Cape.
The works, as described, are situated close to Bitterfontein, Western Cape, close to the Northern Cape border. The successful bidder must have the capacity to start the works within 10 days of appointment.
Bitterfontein has a hot, dry, arid climate, characterised by very hot summers and mild, but potentially cold winters with very little rainfall. It normally receives about 673mm of rain per year, and because it receives most of its rainfall during winter, it has a Mediterranean climate.
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The site consists of sandy soil conditions; during high rainfalls, the soil can be waterlogged.
The scope of work includes:
- Removal of the existing windmill and installation of a new borehole pump (MultiFlow 300 with controller) with security features.
- Supply and installation of electrical cables (6mm 3-core) and solar panels (6 panels of 550W, 52V).
- Construction and installation of pipeline (approx 2km of 32mm HDPE pipe) to water tanks.
- Mounting of solar panels on existing roofing structures with appropriate racking systems.
- Electrical work, including connection of the pump to the solar system and testing of the entire setup.
- Commissioning, testing and certification (COC) of the solar system and borehole pump.
- Provision of all materials, labour, safety measures and compliance with technical and safety standards.
Technical Requirements
The technical specifications include:
- Installation of a MultiFlow 300 borehole pump with controller, securely mounted with safety features.
- Electrical connection of a 6mm 3-core cable from the borehole to the solar system (~70 metres).
- Supply and installation of six 550W, 52V solar panels with a minimum 10-year workmanship guarantee and 25-year performance guarantee.
- Pipeline installation using 32mm HDPE Class 6 pipes over approximately 2km, with proper excavation, backfilling and jointing.
- Mounting of solar panels on existing IBR roofing with adjustable tilt for optimal sun exposure.
- Electrical system design to ensure minimal losses, proper interconnection and compliance with manufacturer specifications and electrical standards.
- Testing, certification and documentation (COC) upon completion.
All RFQ documents can be obtained and must be uploaded onto the Casidra RFQ/Tender portal. No e-mailed or hard copy documents will be accepted.
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Source: https://www.esi-africa.com/tenders/casidra-issues-tender-for-solar-borehole-near-bitterfontein/
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