Project record

Ras Mohaisen Independent Water Project and Marine Intake/Outfall

Sharakat, ACWA, Haji Abdullah Alireza and AlKifah representatives at the February 2025 signing of the Ras Mohaisen independent water project agreements

Sharakat (Saudi Water Partnership Company)

Ras Mohaisen is a Red Sea reverse-osmosis desalination project at Al-Qunfudhah with 300,000 cubic metres per day of designed production and 600,000 cubic metres of potable-water storage. Sharakat, the Saudi Water Partnership Company, announced financial close in December 2025 at an estimated SAR 2.57 billion. ACWA's year-end 2025 investor report places the full 300,000 cubic metres per day under construction and gives Q4 2029 as expected PCOD. Sharakat's financial-close release instead schedules initial production of 100,000 cubic metres per day in 2028 and full production in 2030. The EPC scope awarded to L&T and Lantania includes intake and outfall facilities, pumping, SWRO process systems, storage, electrical works and solar PV. Lantania separately identifies 3 kilometres of offshore works, while the ESIA identifies seabed trenching, dredging, pipe laying and marine monitoring. Accepted marine geometry, completed pipe installation and operating performance are not published.

Project signal

Construction in Saudi Arabia

Financial close, construction classification, marine installation, partial-water production and final commercial operation are separate project states. Reconcile the 2028/2030 Sharakat sequence with ACWA's Q4 2029 PCOD before using a single completion date, and require evidence across offshore civil works, intake hydraulics, outfall dispersion, plant commissioning, storage, power and sustained water-quality performance.

Current status Project agreements, the L&T-Lantania EPC award and December 2025 financial close are evidenced, and ACWA's 3 March 2026 year-end report classifies the full 300,000 m3/day capacity as under construction; offshore mobilisation, installed intake or outfall geometry, first water and accepted production are not dated Source confidence Confirmed

Location

Saudi Arabia / Middle East

Segment

Marine utilities

Status

Project agreements, the L&T-Lantania EPC award and December 2025 financial close are evidenced, and ACWA's 3 March 2026 year-end report classifies the full 300,000 m3/day capacity as under construction; offshore mobilisation, installed intake or outfall geometry, first water and accepted production are not dated / Confirmed

Evidence reviewed

15 July 2026

Controlled taxonomy

Related sectors

The detailed segment above is the primary work classification. These broader sector links connect the project to related delivery and market research.

Knowledge context

Related knowledge topics

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Project anatomy

Scope, counterparties, and execution logic

Client / authority
Sharakat (Saudi Water Partnership Company) and Ras Mohaisen First Water Desalination Company
Delivery parties
Larsen & Toubro Water & Effluent Treatment, Lantania
Contract route
Sharakat procured the project as an independent water project under a 25-year water-purchase structure. Its financial-close release identifies ACWA at 45%, Haji Abdullah Alireza & Co. at 35% and AlKifah Holding at 20% in Ras Mohaisen First Water Desalination Company. ACWA's year-end report records a WPA-BOO-25-year structure, SAR 2.569 billion total investment cost and a 45% effective ACWA share. Sharakat's current portfolio page uses a BOOT label, so the transfer language should be checked against the executed project agreements rather than inferred from website terminology.
Execution window
The project agreements were signed on 5 February 2025 and the L&T-Lantania EPC award was announced on 13 March 2025. Financial close followed on 25 December 2025. Sharakat states initial production of 100,000 cubic metres per day in 2028 and full production of 300,000 cubic metres per day in 2030; ACWA's year-end 2025 report gives Q4 2029 as expected PCOD for the full capacity. Lantania's project literature gives a 2025-2029 execution period. All three remain source-specific schedules until a revised contractual baseline and accepted commissioning sequence are published.
Works package
The EPC scope comprises design, procurement, construction, testing and commissioning of a 300,000 cubic metre-per-day SWRO plant, intake and outfall facilities, pumping stations, pretreatment, reverse osmosis with energy recovery, post-treatment, automation and instrumentation, four potable-water tanks with 600,000 cubic metres of combined storage, a 132/33 kV substation, approximately 17 kilometres of overhead transmission line and a 30 MW solar PV field. Lantania identifies 3 kilometres of offshore work but does not split that figure into accepted intake and outfall lengths in the reviewed brochure.
Marine interfaces
The ESIA identifies excavation, infilling and seabed trenching for intake and outfall pipes, with barges, dredgers and vessels in the construction plant. It requires a dredging environmental management plan, permits before dredging and filling, silt curtains, water and sediment testing, continuous turbidity monitoring, underwater-noise controls and marine buoys at the intake and outfall. Its modelling describes brine and sediment-plume scenarios, but model outputs are design evidence rather than proof that the pipelines, intake headworks, outfall or diffuser have been installed and accepted.
Commercial read
Financial close and an under-construction classification establish project formation and funded delivery, not water available for offtake. The 300,000 cubic metre-per-day figure is designed gross capacity. The 600,000 cubic metres of storage is physical design scope, not evidence of filled and accepted tanks. The 3-kilometre offshore figure is a contractor scope statement, not as-built pipeline length. Initial production, final PCOD and full production are distinct milestones and should not be collapsed into one opening claim.
Next milestone
Seek the approved marine drawings and permit baseline, dated offshore mobilisation, trench and pipe-laying records, intake and outfall as-builts, hydrographic and geotechnical acceptance, diffuser and hydraulic testing, brine-monitoring results, plant and storage commissioning, grid and solar energisation, first-water certificates, partial-capacity performance, final PCOD and sustained 300,000 cubic metre-per-day availability.

Material change register

What changed, when, and what it proves

Only source-bound events that alter phase, scope, counterparties, delivery, completion, commissioning, or acceptance are listed. A change can advance the record without proving the next gate.

ACWA classified the full design capacity as under construction

The developer's year-end report records 300,000 cubic metres per day under construction, SAR 2.569 billion total investment cost and Q4 2029 expected PCOD. A portfolio construction classification does not prove offshore mobilisation, installed intake or outfall assets, first water, accepted capacity or commercial operation.

Read controlling source

Sharakat announced financial close

Financial close establishes funded delivery and the 45/35/20 sponsor structure. Sharakat's release gives initial 100,000-cubic-metre-per-day production in 2028 and full 300,000-cubic-metre-per-day production in 2030; those are phased schedule statements rather than first-water, performance or acceptance records.

Read controlling source

L&T announced the Ras Mohaisen EPC order

The award covers design, procurement, construction, testing and commissioning of the SWRO plant and associated intake, outfall, pumping, storage, electrical and solar systems. Award evidence defines responsibility and scope but does not establish marine mobilisation, as-built pipeline length, hydraulic acceptance or operating output.

Read controlling source

Sharakat signed the 25-year project agreements

The agreements moved the IWP from procurement into contracted development and established the sponsor consortium, offtake structure, designed capacity and storage scope. Signing did not establish EPC completion, offshore works, water production or transfer language beyond the reviewed agreement summary.

Read controlling source

Delivery watch

Evidence needed next

Seek the approved marine drawings and permit baseline, dated offshore mobilisation, trench and pipe-laying records, intake and outfall as-builts, hydrographic and geotechnical acceptance, diffuser and hydraulic testing, brine-monitoring results, plant and storage commissioning, grid and solar energisation, first-water certificates, partial-capacity performance, final PCOD and sustained 300,000 cubic metre-per-day availability.

Decision watchpoints

  • Executed BOO/BOOT and 25-year water-purchase agreement baseline
  • Reconciliation of Sharakat's 2028/2030 sequence with ACWA's Q4 2029 PCOD
  • Approved marine design, permits and the allocation of the 3-kilometre offshore scope
  • Seabed trenching, dredging, pipe installation, backfill and as-built survey acceptance
  • Intake headworks, screens, fish protection, pumping and hydraulic testing
  • Outfall, diffuser, brine dispersion, water quality and marine monitoring
  • Pretreatment, RO trains, energy recovery, post-treatment and process guarantees
  • 600,000 cubic metres of storage, substation, transmission line and solar-PV energisation
  • First water, partial production, final PCOD and sustained availability evidence

Related records 4

Project availability status

This public project page is a tracked market record rather than a tender notice, contractual commitment, or commercial instruction. Use the status, confidence label, evidence-review date, and source note together when judging how much weight to place on the signal.

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Record control

Evidence reviewed date is not a project-event date.

IMWO changes phase, participants, scope, completion, or acceptance wording only when a dated source establishes the change. The review date records when the evidence set was checked; it does not claim that physical work changed on that date.

Evidence reviewed 15 July 2026 Sources in this record 8

Source record

Sharakat controls the project agreements, sponsor shares, financial-close value and phased 2028/2030 production statement. ACWA's year-end report controls the under-construction classification, SAR 2.569 billion investment figure, 45% share and Q4 2029 expected PCOD. L&T and Lantania control the EPC scope; Lantania's water-project brochure controls the 3-kilometre offshore-work statement. ACWA's disclosed ESIA controls the seabed trenching, dredging, intake, outfall and monitoring interfaces. Financial close, modelling and scope descriptions do not establish marine completion, installed pipeline length, accepted capacity, first water or final operation.

Phase: construction. Evidence reviewed: 15 July 2026.

Project sources 8