In the desert oases of southern Libya, dispersed water wells have long relied on diesel generating sets to drive submersible pumps. Fuel has to be transported over long distances, operating costs are high, and any interruption of the power supply directly interrupts water supply. Al Kufra Municipality lies in south-eastern Libya, and Well No. 1 covered by this solicitation is located within it, at 24°08′17.9″N, 23°13′13.3″E. UNDP Libya states in the notice that the objective of the project is to deliver a complete solar-powered water supply system that reduces dependence on conventional power sources and maintains uninterrupted operation under local environmental conditions.
The Renewable Energy Authority of Libya (REAOL) is the national body responsible for the development and deployment of renewable energy in Libya. It was established in 2007 by Decision No. 426, with a mandate that includes promoting the use of renewable energy in the country. Projects published by the authority show that converting water supply and power facilities in remote areas to solar systems is one of its priority lines of work. The solar-powered water well system procured under this notice is consistent with that direction.
| Item | Content |
|---|---|
| Contract Object | A complete solar-powered water pumping system for an existing water well, including supply, installation, testing, commissioning and handover |
| Site Assessment and Mobilisation | Detailed site assessment, verification of the existing well condition, confirmation of installation requirements, and mobilisation of personnel, equipment, tools and materials together with the necessary temporary facilities |
| Well Inspection | Inspection of the existing well, verification of its dimensions and depth, assessment of casing integrity, static and dynamic water levels, and confirmation of the suitability of the proposed pumping system |
| Submersible Pump | Supply, installation and commissioning of a heavy-duty stainless-steel submersible pump complete with submersible motor, power cables, cable guards, safety wire, check valves and all necessary accessories |
| Rising Main and Pipework | Rising mains, fittings, flanges, valves, supports, clamps, reducers, expansion joints and all pipework accessories required to convey water from the well to the designated discharge point |
| Solar PV System | Solar modules, mounting structures, cabling, connectors, combiner boxes, protection devices and all accessories required for safe and efficient operation |
| Solar Mounting Structure | Design, fabrication, supply and installation of hot-dip galvanised steel structures suitable for desert environmental conditions and capable of withstanding local wind loads and climatic conditions |
| Inverter and Control System | Solar pumping inverter with maximum power point tracking (MPPT) and variable frequency drive functionality, protection devices, monitoring systems and control panels complete with all required accessories |
| Electrical Works | Power cables, earthing systems, lightning protection systems, cable trays, conduits, cable markers, protection devices and electrical accessories necessary for complete operation of the system |
| Civil Works | Excavation, grading, foundation construction, reinforced concrete bases, equipment plinths, cable trenches, backfilling, site restoration and ancillary civil works |
| Performance Verification | Verification that the system achieves the specified pumping capacity, operating head and daily water production requirements under actual site conditions |
| Training | Operation and maintenance training for designated operators and technical personnel, covering system operation, troubleshooting and routine maintenance |
| Documentation | Approved shop drawings, a detailed work programme, equipment datasheets and material submissions, factory test certificates, installation reports, pumping test reports, commissioning and performance test reports, operation and maintenance manuals, training records, as-built drawings and warranty certificates |
| Item | Content |
|---|---|
| Contract Form | Contracts of this type for solar-powered water supply systems are normally awarded as lump-sum, single-stage delivery contracts in which the price covers design, supply, installation, testing, commissioning and training |
| Payment Arrangement | Comparable contracts are commonly paid against milestones, typically an advance after signature followed by payments on delivery of equipment, completion of installation and acceptance, with the final instalment released at the end of the defects liability period |
| Performance Security | Projects of this type normally require a performance security expressed as a percentage of the contract price, generally provided in the form of a bank guarantee or an on-demand guarantee |
| Taxes and Insurance | Contracts of this type generally place all local taxes, transport insurance and erection all-risks insurance on the contractor, to be included in the offered price |
| Quality Standards | Equipment is generally required to be offered with ISO or equivalent quality certificates, product datasheets and factory test certificates; on completion, performance is normally verified against the specified pumping capacity, operating head and daily water production |
| Time for Completion and Extensions | The contract period generally runs from the date of site handover, and any adjustment is normally subject to review and approval by the engineer |
| Defects Liability and Warranty | The contractor provides a defects liability period of not less than twelve months and rectifies defects arising during that period at no additional cost to the employer, and delivers warranty certificates, operation and maintenance manuals and as-built drawings |
| Site Management and Coordination | Weekly site meetings are normally held during implementation, with additional meetings scheduled as required; the contractor submits a detailed breakdown of the installation programme within one week of accessing the site, together with weekly reports, shop drawings and a site logbook |