RFQ Construction Contract for Small Works - Supply, Installation, Delivery, Testing, Commissioning, Operating, handing over a Solar System for Dr. Ameen Nasher Higher Institute for Health Science- Aden
UNOPS
RFQ Construction Contract for Small Works - Supply, Installation, Delivery, Testing, Commissioning, Operating, handing over a Solar System for Dr. Ameen Nasher Higher Institute for Health Science- Aden
Request for quotation
Reference:
RFQ/2026/62179
Beneficiary countries or territories:
Yemen
Registration level:
Basic
Published on:
02-Apr-2026
Deadline on:
26-Apr-2026 09:00 0.00
Description
Tender description: [Supply, Installation, Delivery, Testing, Commissioning, Operating, handing over a Solar System for Dr. Ameen Nasher Higher Institute for Health Science- Aden]
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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
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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.
Gender issues
Social
The tender contains sustainability considerations addressing gender equality and women's empowerment.
Examples:
Gender mainstreaming, targeted employment of women, promotion of women-owned businesses.
| 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 |
26131507
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Solar power plants
New clarification added: Question:We would like to kindly request clarification regarding point no. (3) in the BOQ for the DC Combiner Box. You have specified “12 inputs / 12 outputs,” and we would like to confirm the exact meaning of this notation. Specifically, does the symbol “/” indicate that the combiner box should have both 12 inputs and 12 outputs simultaneously, or does it mean 12 output or 12 input? Your clarification on this matter will help us ensure full compliance with the required Answer:DC box with 12 inputs and 12 outputs, As shown in the designs on page E-13-2
Edited on:
15-Apr-2026 10:43
Edited by:
webservice@unops.org
New clarification added: Question:- In item 2.1- Please be noted that 125KW hybrid inverter is recommended, is it acceptable this hybrid inverter instead of 115KVA on grid and PCS.- In item 3.6- Is it acceptable the IP 20 to be instead of IP 55. If you need IP 50 the Outdoor cabinet should be included is it acceptable.Answer:- The specifications stated in the BOQ must be strictly followed.- Reducing the IP rating is not allowed. The unit must have native protection against water (second digit of the IP rating) without relying on external enclosures or additional cabinets)
Edited on:
14-Apr-2026 14:02
Edited by:
webservice@unops.org
New clarification added: Question:Regarding to the PV mounting structre , kindly clarify the following :BoQ point No 2.2.1 , Kindly confirm QTY for each type (ex. BoQ Rooftop mounting Type 1 &Type 2 ) , so is this Type 1A and Type 2A , and how many for each type ??Also kindly recheck drawing for 2A and 2B , because we found drawing showing 1A and 1B in 2A&2B drawing section .BoQ Point 2.2.2 Type S02 , we didn't found drawing for this type of mounting structre .So in general kindly check PV mounting structre srawings and BoQ and clarify QTY per each Type Answer:* Item 2.2.1, please note that TYPE 1 consists of (1A + 1B) and TYPE 2 consists of (2A + 2B). The quantities listed in the BOQ represent the total for these types.While the types are similar, they vary in the number of PV panels per group. However, the required unit rate/price must be provided per solar panel base rather than per group. This is clearly specified in the "Unit" column and the notes at the end of item 2 in the (BOQ).For technical details and site locations for each type, please refer to drawings GS-05 and S-01 (General Site Layout).* The Page 9 contains the details and designs for TYPE 2A (not 1A), and Page 10 contains TYPE 2B (not 1B). This is correctly indicated in the title drwaing at the bottom right of each page.The drawing numbers will be updated accordingly.* Item 2.2.2 pertains to TYPE S02, with separate file, 34-page detailed design is available for this specific type under the same name.
Edited on:
14-Apr-2026 14:00
Edited by:
webservice@unops.org
New clarification added: Question:We would like to request clarification regarding Item No. 4 in the BOQ – Battery Cabinet Energy Storage System (ESS), as follows: Depth of Discharge (DOD)Kindly confirm whether the required DOD is fixed at 100% or within a range of 0–100%. As you mentioned it once Depth of charge and discharge : 0~100%, then you mentioned it Round-trip Efficiency 96%@100%DOD. Kindly confirm which value should be considered for compliance. Answer:A 100% Depth of Discharge (DoD) signifies a full discharge state. Whether expressed as a range of 0–100% or as a total 100% DoD, both terms refer to the complete utilization of the battery's usable capacity.The terms 0–100% DoD and 100% DoD are synonymous in this context, both indicating a full discharge cycle where the battery is depleted to its maximum permissible limit.
Edited on:
14-Apr-2026 13:58
Edited by:
webservice@unops.org
New clarification added: Question:We would like to request clarification regarding Item No. 4 in the BOQ – Battery Cabinet Energy Storage System (ESS), as follows: 1. Round Trip Efficiency / SOH ConditionsIt is stated that the round trip efficiency is 96% @ 100% DOD, 0.2C, and 25±2°C.However, under the SOH conditions, it is again specified at 25±2°C, 0.5C, and 100% DOD.Kindly clarify whether these represent different test conditions or they are repeated conditions. 2. Rated AC Current DiscrepancyIn the Battery Parameters (DC) section, the rated AC current is specified as 140A.Meanwhile, in the PCS Parameters (AC) section, the rated AC current is specified as 160A.Kindly confirm which value should be considered for compliance. Answer:1- They are repeated conditions.2- 140A for Rated DC current, 160A for Rated AC current
Edited on:
14-Apr-2026 13:55
Edited by:
webservice@unops.org
New clarification added: Question:Subject: Technical Clarification - CCTV System (Item No:11.4)Inquiry: We noted that the Bill of Quantities (BOQ) includes a requirement for (8) CCTV cameras; however, there is no mention of a Recording Device (NVR) or Storage Media (Hard Drives) in the specifications or items list.Also, in the item no: 1.4.2, the itwm mentioned the camera to be outdoor but in the description it is indoor.Please clarify the following:Should the cost of the NVR and sufficient HDD storage be included within the unit price of the cameras?The 7 cameras are indoor or outdoor?Or is this requirement considered an expansion of a pre-existing surveillance system where the new cameras will be integrated into an existing NVR?We look forward to your clarification to ensure a compliant and accurate proposal.Answer:The NVR unit is already available on-site, so it is excluded from the supply scope.all cameras are for outdoor installation.
Edited on:
14-Apr-2026 13:53
Edited by:
webservice@unops.org
New clarification added: Question:I’m following up on the specifications for Item 2 (PV Inverters).The current documentation lists these as on-grid type, whereas the project requirements clearly specify a hybrid application. Furthermore, there is no mention of the specific inverters required for the battery cabinets integration.Could you please provide a technical justification for this matter.Answer:It is important to distinguish between hybrid inverters, which are integrated within the battery cabinet, and on-grid inverters, which are separate, standalone units. Please refer to the drawings for more details.
Edited on:
14-Apr-2026 13:51
Edited by:
webservice@unops.org
New clarification added: Question:Due to the project's extensive scope and pending manufacturer pricing, we kindly request a one-week extension to the submission deadline.This will allow us to provide a comprehensive technical and commercial proposal that meets your requirements.Answer:The deadline has been already extended. We can't extend further beyond 26 April 2026
Edited on:
14-Apr-2026 13:49
Edited by:
webservice@unops.org
New clarification added: Question: Inquiry Regarding Site Visit Schedule and Access Permits We noted that a Site Visit is requested in the tender documents (BOQ-CIVIL item 1.1) and in questioner regarding to the gunset. However, we could not find a specific date or time scheduled for this visit.Could you please clarify the following points:Scheduled Date & Time: What is the designated date and time for the site visit?Access Permits: Does the site require any prior security clearances or access permits for our representatives? If so, what documents are required from our side to facilitate this?Meeting Point: Could you provide the exact coordinates or a meeting location for the visit?Answer:Site visit is not mandatory however each bidder is encouraged to visit the site before submitting the tenders. The project site is an institute open to any visistor during working hours and can be visited during official working hours.
Edited on:
14-Apr-2026 13:48
Edited by:
webservice@unops.org
New clarification added: Question: Kindly confirm whether it is acceptable to offer an inverter with an MPPT voltage range of 180–1000 V, considering that your requirement specifies a range of 200–1000 V. Additionally, please confirm if it is acceptable to provide an inverter with an output voltage range of 230–400 VAC, as your requirement indicates 230–415 VAC. Answer:Yes, that's possible as long as the required voltage range is within the voltage range of the supplied inverter.
Edited on:
14-Apr-2026 13:45
Edited by:
webservice@unops.org
New amendment added #1: This amendment is made to change the following:to extend the deadline for bid submission and the deadline for clarifications. Please refer to the general tab on eSourcing.to upload the revised BOQ. Revisions are highlighted in yellow. Please refer to the documents tab on eSourcing.All other terms and conditions remain the same.
Edited on:
13-Apr-2026 08:48
Edited by:
webservice@unops.org
New clarification added: Question: With reference to the item No 2 and specifically the requirement for on-grid PV inverters rated at 115 kVA, we kindly request your clarification regarding the acceptable capacity range. We would appreciate your confirmation on the following: 1. Is it acceptable to offer an inverter with a rated capacity slightly lower or higher than 115 kVA, provided that all other technical specifications are fully compliant?2. Would offering a higher capacity inverter (e.g., 120 kVA or 125 kVA) be considered compliant and acceptable for evaluation?Answer:Yes, any inverter that meets the specifications and has a capacity of 115KVA or higher is acceptable.The BoQ has been updated and will be posted via a tender amendment shortly
Edited on:
09-Apr-2026 12:26
Edited by:
webservice@unops.org
New clarification added: Question:We kindly request an extension of the tender submission deadline, as we are currently in the process of preparing our proposal in full compliance with your requirements. Additional time would enable us to ensure that all aspects of the submission meet the expected standards and are thoroughly completed.Answer:The deadline will be extended until 26 April 2026 via a tender amendment that will be published shortly
Edited on:
09-Apr-2026 12:24
Edited by:
webservice@unops.org
New clarification added: Question:We kindly request your clarification regarding the offered system.Please provide the brand and model of the following:Diesel Generator Set (Genset)Manufacturer (Brand)Model numberEngine and alternator detailsSynchronizing Genset ControllerBrand and modelConfirmation that it supports synchronization (load sharing / parallel operation with grid and/or other generators)Answer:The bidder should visit the site to verify all practical details of the Genset and the Genset controller) before submitting their bids.
Edited on:
09-Apr-2026 12:22
Edited by:
webservice@unops.org
New clarification added: Question:Subject: Clarification Regarding AC Cables – Point 5.2 We would like to request clarification regarding the AC cables specifications under point 5.2, as follows: Point 5.2.4 and Point 5.2.7:The manufacturer has informed us that the armoring type for single-core cables is AWA, and this type cannot be applied to multi-core cables (2, 3, and 4 cores).For multi-core cables, the applicable armoring type is SWA only.Kindly note that this is in accordance with international IEC standards followed by manufacturers. Point 5.2.7:The specification (3 × 4 × 400 mm² CU/XLPE/AWA/PVC) is not clear. We would appreciate your clarification on the following: What is meant by 3 × 4 × 400 mm²? What is the required cable size and number of cores? Kindly provide the full and detailed description of this item to enable us to price it accurately.Answer:Point 5.2.4 and Point 5.2.7:Please adhere to the design specification of the cable protection, AWA or SWA.Point 5.2.73 cables with 4cores of 400mm2thats mean : 3 cables, each cable consisting of a multi-core cable with 4 cores: three cores for 3 phase cables and one for neutral cable.and can also used Single-core cables instead of a 4-core cable.
Edited on:
09-Apr-2026 12:21
Edited by:
webservice@unops.org
New clarification added: Question:Subject: RFI #01 – Clarification on Corrosion Protection (Galvanization vs. Painting) for Solar Mounting StructuresUpon reviewing the technical specifications for the solar power system installation at Dr. Ameen Nasher Institute in Aden, we would like to request a clear clarification regarding the required finish and corrosion protection for the entire solar mounting structure (including columns, beams, purlins, bracing, and plates).Given the project's location in a high-salinity coastal environment, please clarify the following:Corrosion Protection Requirement: Is it mandatory for all steel components of the mounting structure to be Hot-Dip Galvanized (HDG) in accordance with ASTM A123 / ISO 1461?Alternative Coating: Is it acceptable to use a painting system (e.g., Zinc-rich primer followed by Epoxy/Polyurethane layers) instead of Hot-Dip Galvanization?Standard Compliance: If painting is allowed, does UNOPS have a specific approved painting coating system or thickness (DFT) that must be followed for this coastal site?This clarification is vital for all bidders to ensure technical compliance and to provide an accurate and fair financial proposal.Answer:All system components must comply with the Bill of Quantities (BOQ) and engineering specifications.The mounting structure should be Hot-Dip Galvanized (HDG).Alternative Coating: Not acceptableStandard compliance. Alternative not accepted
Edited on:
09-Apr-2026 12:18
Edited by:
webservice@unops.org
New clarification added: Question:Regarding the BOQ for the combiner box, it is specified as “12 inputs / 12 outputs.” Could you please confirm whether this is correct, or if it may be a typographical error? so we would appreciate your clarification on this point.Answer:The BOQ is correct, it is multi string/multi input-multi output. Please refer to the electrical drawing E-13-12.
Edited on:
07-Apr-2026 08:59
Edited by:
webservice@unops.org