Supply, Installation, Testing and Commissioning of Solar PV Systems at KHC Facilities (Saudi Maternity Hospital, Blood Bank and Training Room), Kassala State, Sudan.
UNOPS
Supply, Installation, Testing and Commissioning of Solar PV Systems at KHC Facilities (Saudi Maternity Hospital, Blood Bank and Training Room), Kassala State, Sudan.
Invitation to bid
Reference:
ITB/2026/64452
Beneficiary countries or territories:
Sudan
Registration level:
Basic
Published on:
02-Sep-2026
Deadline on:
27-Sep-2026 10:00 0.00
Description
Tender description: Supply, Installation, Testing and Commissioning of Solar PV Systems at KHC Facilities (Saudi Maternity Hospital, Blood Bank and Training Room), Kassala State, Sudan. 2 Lots:
Lot 1: Supply, Installation, Testing and Commissioning of Solar PV Systems at KHC Saudi Maternity Hospital – Location A.
Lot 2: Supply, Installation, Testing and Commissioning of Solar PV Systems at KHC Blood Bank and Training Room – Locations B and C.
-----
The United Nations Office for Project Services (hereinafter referred to as UNOPS) is pleased to invite competent Bidders/Contractors to submit their respective competitive bids for the Supply, Installation, Testing and Commissioning of Solar PV Systems at KHC Facilities (Saudi Maternity Hospital, Blood Bank and Training Room), Kassala State, Sudan. in accordance with the UNOPS General Conditions of Contract.
-----
IMPORTANT NOTE: Interested vendors must respond to this tender using the UNOPS eSourcing system, via the UNGM portal. In order to access the full UNOPS tender details, request clarifications on the tender, and submit a vendor response to a tender using the system, vendors need to be registered as a UNOPS vendor at the UNGM portal and be logged into UNGM. For guidance on how to register on UNGM and submit responses to UNOPS tenders in the UNOPS eSourcing system, please refer to the user guide and other resources available at: https://esourcing.unops.org/#/Help/Guides
Interested in improving your knowledge of what UNOPS procures, how we procure and how to become a vendor to supply to our organization? Learn more about our free online course on “Doing business with UNOPS” here
Lot 1: Supply, Installation, Testing and Commissioning of Solar PV Systems at KHC Saudi Maternity Hospital – Location A.
Lot 2: Supply, Installation, Testing and Commissioning of Solar PV Systems at KHC Blood Bank and Training Room – Locations B and C.
-----
The United Nations Office for Project Services (hereinafter referred to as UNOPS) is pleased to invite competent Bidders/Contractors to submit their respective competitive bids for the Supply, Installation, Testing and Commissioning of Solar PV Systems at KHC Facilities (Saudi Maternity Hospital, Blood Bank and Training Room), Kassala State, Sudan. in accordance with the UNOPS General Conditions of Contract.
-----
IMPORTANT NOTE: Interested vendors must respond to this tender using the UNOPS eSourcing system, via the UNGM portal. In order to access the full UNOPS tender details, request clarifications on the tender, and submit a vendor response to a tender using the system, vendors need to be registered as a UNOPS vendor at the UNGM portal and be logged into UNGM. For guidance on how to register on UNGM and submit responses to UNOPS tenders in the UNOPS eSourcing system, please refer to the user guide and other resources available at: https://esourcing.unops.org/#/Help/Guides
Interested in improving your knowledge of what UNOPS procures, how we procure and how to become a vendor to supply to our organization? Learn more about our free online course on “Doing business with UNOPS” here
This tender has been posted through the UNOPS eSourcing system. / Cet avis a été publié au moyen du système eSourcing de l'UNOPS. / Esta licitación ha sido publicada usando el sistema eSourcing de UNOPS. Vendor Guide / Guide pour Fournisseurs / Guíra para Proveedores: https://esourcing.unops.org/#/Help/Guides
First name:
N/A
Surname:
N/A
This procurement opportunity integrates considerations for at least one sustainability indicator. However, it does not meet the requirements to be considered sustainable.
Human rights and labour issues
Social
The tender contains sustainability considerations related to human rights, fundamental principles and rights at work, occupational health and safety, fairly traded goods, targeted employment of people with disabilities, etc.
Sustainable resource use
Environmental
The tender contains sustainability considerations promoting the sustainable use of resources.
Examples:
Energy-saving measures, recycling, take-back programmes and responsible end-of-life management
| Link | Description | |
|---|---|---|
| https://esourcing.unops.org/#/Help/Guides | UNOPS eSourcing – Vendor guide and other system resources / Guide pour fournisseurs et autres ressources sur le système / Guía para proveedores y otros recursos sobre el sistema |
72151203
-
HVAC solar energy construction service
New clarification added: Dear Bidder, Thank you for your interest in this tender.Question: The sizes of the specified cables are considered very large compared to the inverter's capacity.please clarify. Answer: The specified cable sizes are maximum values and may be adjusted based on site conditions and supporting electrical calculations, subject to UNOPS approval. The inverter and battery capacities must remain unchanged.Question: please be informed that the available sizes of cable at the local markets are maximum (50mm2), we kindly request you to re check the sizes of cables between the battery bank and inverters.Answer: The specified cable sizes are maximum values and may be adjusted based on site conditions and technical calculations. Where larger cables are unavailable, multiple parallel runs of 50 mm² cables may be proposed, subject to UNOPS review and approval. The required inverter and battery capacities must remain unchanged.Best Regards Procurement Unit UNOPS Sudan Office.
Edited on:
20-Sep-2026 12:37
Edited by:
webservice@unops.org
New amendment added #1: Dear Bidders,Please note that the tender has been amended to include the pre-bid meeting presentation and meeting minutes, including all questions raised and the corresponding responses.Bidders who did not attend the meeting are encouraged to review both documents carefully.Kind regards,Procurement UnitUNOPS Sudan Office
Edited on:
16-Sep-2026 09:29
Edited by:
webservice@unops.org
New clarification added: Dear Bidder, Thank you for your interest in this tender. Question: To ensure consistency across technical schedules and priced Bills of Quantities, we request clarification on the following items:1- Category 01 Battery Chemistry & Capacity: BOQ 4.09 (Bill B, Item 3) specifies a 5 kWh LiFePO4 battery (48V), whereas Drawing 4.10 (SLD) references 24 × 2V 800Ah lead-acid cells (38.4 kWh). Please confirm that bidders should strictly price the 5 kWh LiFePO4 battery system.Answer: Batteries must be cobalt-free lithium iron phosphate batteries (LiFePO4 battery Please adhere to the BOQ description and the technical schedule spreadsheet2- Category 04 Inverter & Battery Ratings: BOQ 3.06 lists two 12 kVA 3-phase inverters and two 10 kWh battery banks, whereas Drawing 3.07 shows two 7 kVA off-grid inverters and two 31,250 Wh batteries. Please confirm that the priced proposal should align with the BOQ line items (2 × 12 kVA / 2 × 10 kWh).Answer: The inverter is a Hybrid Inverter. Please adhere to the BOQ description and technical schedule spreadsheet.3- Category 06 BOQ Schedule Headings: In BOQ 3.11, Bills C-1 and C-2 are both titled Corridor 2 (2-A), and Bill C-3 is titled Cat. 6 - 46 Panels. Based on Structural Drawings 3.14 and 3.15, please confirm that Bill C-2 corresponds to Corridor 1 (46 panels) and Bill C-3 corresponds to the Cafeteria Block (48 panels, 138 m²).Answer: Yes, the corridor panels are 46 and Cafeteria are 48 panels.4- 48V Low-Voltage vs. High-Voltage Architecture: Please confirm whether bidders must strictly adhere to the 48V battery bus specified in the BOQs, or if High-Voltage (HV) BESS architecture (150V–600V DC) is acceptable as an approved equal for the 3-phase hybrid systems.Answer: 48V Low-Voltage as specified in the BOQ specifications.5- Could you please specify the PF of the inverter KVA is 1 or 0.8 so we can decide the best fit inverter.Answer: The preferred PF of the inverter KVA is 1, but no problem to supply 0.8.Question: For the batteries suggested in the BoQ, do you mean the rated capacity 10 KWH or the Unit?Answer: The battery Unit Capacity. Best Regards Procurement Unit UNOPS Sudan Office.
Edited on:
14-Sep-2026 21:31
Edited by:
webservice@unops.org
New clarification added: Dear Bidder, Thank you for your interest in this tender. Question: Please confirm whether the required MPPT input current is indeed 85–100 A for the proposed integrated-MPPT hybrid inverter. This appears to be a relatively high MPPT input current requirement compared with standard hybrid inverters.Answer: MPPT input current is 35 to 40 for 15 KVA, 25 to 30 for 10 KVA and 20 to 25 for 5 KVA. Best Regards Procurement Unit UNOPS Sudan Office.
Edited on:
14-Sep-2026 21:20
Edited by:
webservice@unops.org
New clarification added: Dear Bidder, Thank you for your interest in this tender. Question: Please clarify whether the required 15 kVA three-phase hybrid inverter shall have an integrated MPPT/PV charge controller, or whether a separate external MPPT charge controller is required. If a separate MPPT charger is required, please confirm the required number, rating and configuration of the MPPT chargers.Answer: Hybrid inverter shall have an integrated MPPT/PV Question: Please confirm the required minimum continuous battery discharge power/current corresponding to the 15 kVA inverter, as the battery capacity requirement is specified as ≥10 kWh but the required discharge current is not stated.Answer: Battery Discharge current is C1Best Regards Procurement Unit UNOPS Sudan Office.
Edited on:
14-Sep-2026 21:13
Edited by:
webservice@unops.org
New clarification added: Dear Bidder, Thank you for your interest in this tender. Questions: — PANEL SPECIFICATION CONTRADICTIONS —Q1 — PANEL MINIMUM WATTAGE: Equipment Technical Schedule (2.7, Sheet 1, Product Specification) states "minimum 550 Wp." All five BOQs (3.02, 3.06, 3.11, 4.02, 4.09) Bill B Item 1 specify "not less than 650 W." The two documents set different minimum wattage floors. Please confirm: (a) which specification governs for compliance evaluation; (b) the minimum acceptable panel wattage for all five categories.Answer: Please adhere to the BOQ description of 650 w. The technical specification is general while the BOQ and technical schedule spreadsheet is particularly related to the Sudan context.Q2 — PANEL EFFICIENCY: Equipment Technical Schedule (2.7, Quality Assurance) and Electrical Technical Specifications (2.6) both require module efficiency ≥20% under STC and AM 1.5. All five BOQs specify ≥19.5% under STC. Please confirm which efficiency requirement governs for compliance evaluation across all categories.Answer: Please adhere to the BOQ description 19.5. The technical specification is general while the BOQ and technical spreadsheet is particularly related to the Sudan context.— INVERTER CONTRADICTIONS —Q3 — CATEGORY 04 INVERTER: Electrical drawing 3.07 shows 2 × Off-Grid Inverter 7 kVA while labelling the AC output coupling panel "HYBRID SOLAR SYSTEM INVERTER OUTPUT." BOQ 3.06 Bill B Item 2 specifies 2 × On-Grid Hybrid Inverter 12 kVA. Both type (off-grid vs. on-grid hybrid) and rated capacity (7 kVA vs. 12 kVA) differ. Please confirm: (a) the correct inverter type for Category 04; (b) the correct kVA rating.Answer: The inverter is an off-grid Hybrid Inverter. Please adhere to the BOQ description. The technical specification is general while the BOQ and technical spreadsheet are the particular specifications related to the Sudan context.Q4 — CATEGORY 06 INVERTER: Electrical drawing 3.12 shows Off-Grid Inverters 15 kVA (3 per sub-area, consistent with the 9 total specified in BOQ 3.11). The kVA rating and count are consistent; however, the inverter type contradicts: off-grid in the drawing versus on-grid hybrid in BOQ 3.11 Bill B Item 2. Please confirm the correct inverter type for Category 06.Answer: The inverter is an off-grid Hybrid Inverter. Please adhere to the BOQ description. The technical specification is general while the BOQ and technical spreadsheet are the particular specifications related to the Sudan context.— BATTERY TECHNOLOGY CONTRADICTION —Q5 — CATEGORY 01 BATTERY TECHNOLOGY: Electrical drawing 4.10 specifies "24 Batteries × 2V × 800Ah at 48V" — a series string of 24 two-volt cells, which is a lead-acid or GEL battery configuration. Both BOQ 4.09 Bill B Item 3 and Equipment Technical Schedule (2.7) explicitly specify "Cobalt-Free Lithium iron phosphate battery (LiFePO4)." These are fundamentally different electrochemical technologies with different costs, weights, BMS specifications, and space requirements. Please confirm: (a) which technology governs for Category 01; (b) if LiFePO4, the required capacity in kWh per the electrical design.Answer: Use the technical schedule specifications for the Batteries technology type cobalt-free lithium iron phosphate batteries (LiFePO4 battery. Please adhere to the BOQ description and the technical schedule spreadsheet specifications — STRUCTURAL AND SCOPE —Q6 — CORRIDOR STRUCTURAL APPROACH: Structural drawings 3.09 and 3.14 for Corridors 1, 2A, and 2B each note: "Capacity of existing members for columns, beams and purlins is much greater than the loads from solar panels (ETABS verified)." These drawings show panels fixed to existing IPE 140A columns and 100×50×2mm tube purlins using fixing brackets, without new RC anchor drilling. Please confirm: (a) that all three corridor locations use existing structural members only, without new RC anchor bolts or epoxy installation; (b) that Bills C for these corridor sub-items (BOQ 3.06 Bill C-2, BOQ 3.11 Bills C-2 and C-3) cover bracket fixing to existing steel only.Answer: Yes, use the existing structures. The structural integrity and analysis was conducted and verified for the loading, anchors and foundations.Q7 — LIGHTNING PROTECTION TRAINING ROOM: Drawing 4.12 shows a new lightning protection system for Category 01 (Ø8mm conductors, 2m copper-plated earth rods, manholes, grounding resistance ≤5 ohms). This appears separate from the earthing system in BOQ 4.09 Bill B Item 11. Please confirm: (a) whether the lightning protection system in drawing 4.12 is within the priced scope of BOQ 4.09; (b) the applicable mandatory standard for this system.Answer: Please use the BOQ item of lighting protection description & specifications for pricing. — COMMERCIAL —Q8 — INSURANCE REQUIREMENTS: Schedule 3.11 [Insurance Requirements], referenced in technical evaluation criterion 2.3 and Schedule 4.9, was not included in the uploaded tender documents. Please confirm: (a) the required insurance types and minimum coverage amounts under Schedule 3.11; (b) whether a written letter of intent from an insurer — committing to provide required policies if selected — satisfies technical criterion 2.3 at the bid stage.Answer: Only a confirmation letter and stamped form of the returnable schedule is required at this stage. The insurance will be after awarding.Best Regards Procurement Unit UNOPS Sudan Office.
Edited on:
14-Sep-2026 21:08
Edited by:
webservice@unops.org