UN Procurement — Invitation to Bid (Re-bid)

Construction of Six Solar-Powered Irrigation Model Farms in Red Sea State, Eastern Sudan (Re-bid)

Ref.ITB/2026/64563Issued2026-09-16Deadline2026-10-06
Red Sea State, Sudan
Project Location
Six (6) solar-powered irrigation model farms
Scope of Works
Bill of quantities issued by lot, including LOT 1 and LOT 2
Lots
2026-10-06 10:00 (GMT)
Bid Deadline

01Project Overview

Project Name
Construction of six solar-powered irrigation model farms in Red Sea State (re-bid)
Reference
UNOPS tender No. ITB/2026/64563 (UNGM notice 314607)
Country
Republic of Sudan (Red Sea State, Eastern Sudan)
Contracting Authority
United Nations Office for Project Services (UNOPS)
Procurement Method
Invitation to Bid (ITB), submitted through the UNOPS eSourcing system
Scope of Works
Construction of six solar-powered irrigation model farms, executed under the UNOPS General Conditions of Contract
Lots
Bills of quantities are issued by lot, including LOT 1 and LOT 2
Farms
According to the drawings attached to the notice, the six farms are Awleeb and Gunub I, Awleeb and Gunub II, Salom, Sinkat I, Sinkat II and Tokar
Works Included
The attachments cover the irrigation system technical specification, the electrical technical specification, the solar pumping system descriptions, solar panel mounting details, elevated water tank details, pump switch house details and the farm irrigation design documents
Submission
Vendors must be registered as a UNOPS vendor on UNGM and logged in, and must respond through the UNOPS eSourcing system
Language
English
Source
United Nations Global Marketplace (https://www.ungm.org/Public/Notice/314607), tender No. ITB/2026/64563, contracting authority UNOPS. Published 16 Sep 2026, verified 1 Oct 2026
Background Sources
World Bank project page for the Accelerating Sustainable and Clean Energy and Digital Access Transformation in Sudan project (ASCENT-Sudan, Project ID P507788) (https://projects.worldbank.org/en/projects-operations/project-detail/P507788), which records that the project is Phase 11 of the ASCENT multi-phase programmatic approach, that it uses a results-based financing mechanism to enable private companies to provide solar energy and digital connectivity solutions, and that the Trade and Development Bank acts as third-party recipient and implementer; World Bank country page for Sudan (https://www.worldbank.org/en/country/sudan)

02Project Background

Agricultural irrigation in Sudan has long relied on diesel pumps and an unstable grid supply. Public information from the World Bank's Accelerating Sustainable and Clean Energy and Digital Access Transformation in Sudan project (ASCENT-Sudan, Project ID P507788) records that the project is Phase 11 of the Accelerating Sustainable and Clean Energy Access Transformation multi-phase programmatic approach (ASCENT MPA) and aims to improve energy and digital access for select communities in Sudan. The project uses a results-based financing (RBF) mechanism to enable private companies to provide solar energy and digital connectivity solutions for farmers, agri-businesses, schools, clinics, SMEs, telecom infrastructure and households, with the Trade and Development Bank (TDB) and its wholly owned subsidiary the Trade and Development Fund (TDF) acting as third-party recipient and implementor. Solar-powered irrigation model farms fall within this direction of replacing diesel pumping with solar energy and improving the reliability of energy used in agriculture.

This invitation to bid is issued by UNOPS as a re-bid for the construction of six solar-powered irrigation model farms in Red Sea State. The notice states that the works are executed under the UNOPS General Conditions of Contract and that bidders must price the works in accordance with the irrigation system technical specification, the electrical technical specification and the lot-based bills of quantities attached to the notice. Vendors must be registered as a UNOPS vendor on UNGM and logged in, must respond through the UNOPS eSourcing system, and may request clarifications on the tender through that system.

03Scope of Work & Technical Specifications

ItemContent
Scope of WorksConstruction of six solar-powered irrigation model farms
FarmsAwleeb and Gunub I, Awleeb and Gunub II, Salom, Sinkat I, Sinkat II, Tokar
LotsBills of quantities issued by lot, including LOT 1 and LOT 2
Irrigation SystemPipe-supported and pressurised irrigation systems, with pressure line profiles and valve and fitting connection details
Solar Pumping SystemEach farm is provided with a solar pumping system, including solar panel mounting details
Water StorageEach farm has an elevated water tank, with ladder, fence and manhole details
Electrical WorksPump switch houses with the associated electrical technical specification
Technical AttachmentsIrrigation system technical specification, electrical technical specification, solar pumping system descriptions, design brief and lot-based bills of quantities
Contract ConditionsUNOPS General Conditions of Contract and the construction contract for small works
SubmissionSubmission through the UNOPS eSourcing system, with UNOPS vendor registration on UNGM
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04Key Commercial Terms

ItemContent
Payment TermsUN agencies' works contracts usually provide for payment in instalments against progress and acceptance milestones, with a retention for the warranty period
Performance SecurityWorks contracts commonly require a performance security of a percentage of the contract price, provided as a bank guarantee
Advance PaymentWorks contracts commonly provide no advance payment, or make any advance conditional on an advance payment guarantee
Warranty PeriodCivil works and equipment installation are commonly warranted for at least 12 months
CurrencyOffers are usually priced in US dollars using unit rates against the bill of quantities
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05Bidder Eligibility Requirements

01
Vendor Registration
Be registered as a UNOPS vendor on UNGM and logged in, in order to access the full tender details, request clarifications and submit a response
02
Pricing Requirements
Price the works against the lot-based bills of quantities attached to the notice and comply with the irrigation and electrical technical specifications
03
Technical Capability
Demonstrate the capability and track record to execute solar pumping irrigation systems and the associated civil works
04
System Operations
Complete registration and submission in accordance with the UNOPS eSourcing user guides
05
Contract Conditions and Code of Conduct
Comply with the UNOPS General Conditions of Contract and the UN Supplier Code of Conduct

06Key Milestones

16 Sep 2026
Notice Published
Submitted through the UNOPS eSourcing system before the submission deadline
Clarifications
6 Oct 2026, 10:00 (GMT)
Submission Deadline
UNOPS eSourcing system (accessed through the UNGM portal)
Submission Platform

07Evaluation Criteria

Technical Compliance Evaluation100%
  • All bids first undergo a technical compliance review covering the construction methodology, compliance with the technical specifications and the completeness of the lot-based pricing
  • Only bids meeting both the technical and commercial requirements proceed to the price comparison
  • The contract is normally awarded to the lowest-evaluated compliant bidder
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