# Rabigh 4 IWP
Publisher: CapexCue
Canonical dossier:
Dossier reference: release 2 (3c36e3d2-ca62-4402-9792-83e43259f82a)
Released project intelligence
Oldest supporting observation: 2026-10-17T16:42:11.391537+00:00
Dossier released: 2026-11-05T16:21:44.369945+00:00
Source report dates and capture dates are listed per fact below; neither establishes an event date.
Original released project name: Rabigh 4 IWP. The document title says “Rabigh 4 IPP,” while the body heading and description identify it as “Rabigh 4 IWP.”
## Project summary
Rabigh 4 IWP is a water desalination project in Saudi Arabia. ACWA Power’s project-page title says “Rabigh 4 IPP,” while its body heading and description identify it as “Rabigh 4 IWP.” The page places the project next to the existing Rabigh 3 IWP Plant but gives no more specific site location. (ACWA Power project page, title, project description and location; observed 17 October 2026.)
ACWA describes the project scope as a 600,000 m³/day SWRO desalination plant, a PWSF tank facility with 1,200,000 m³ capacity, and 6.804 MWp of PV capacity. It reports a project cost of US$675 million and consortium ownership of ACWA Power (45%), Haji Ali Reza (HAACO, 35%) and Al Moayyed (20%). These are figures and roles reported by ACWA. (ACWA Power project page, project description and key facts; observed 17 October 2026.)
The project page records commissioning as scheduled by 31 March 2026 and lists commercial operations in Q1 2026; these are schedule entries, not confirmation that the milestones occurred. (ACWA Power project page, project description and key facts; observed 17 October 2026.) ACWA’s investor report for the three- and six-month periods ended 30 June 2026 lists Rabigh 4 in its March 2026 table of projects that achieved an ICOD or PCOD and began contributing to ACWA’s results. The row reports 600,000 m³/day incremental capacity, 600,000 m³/day online capacity and a dash under remaining capacity. ACWA defines online capacity as capacity in operation at the stated ICOD/PCOD date. (ACWA Power Investor Report, p. 8.)
The report appendix places Rabigh 4 under “FULLY OPERATIONAL ASSETS CONTD.” and lists SWRO, 600,000 m³/day operational capacity and Q1 2026 in a column headed “PCOD (Actual / Expected)/Status.” That entry does not give an exact full-COD date. A general page 8 footnote says some projects may not have reached full operational capacity and obtained an official certificate of full commercial operations from the off-taker; it does not identify Rabigh 4 specifically. These portfolio entries report capacity and milestones, not sustained measured output. (ACWA Power Investor Report, pp. 8, 24.)
Reading-scope note: The investor-report review covered extracted text on pages 6, 8 and 24 of the 34-page report. Other pages and graphical content were not interpreted, and OCR was not commissioned.
## Evidence limits and unknowns
- Whether Rabigh 4 has an official certificate of full commercial operations from the off-taker, and its effective date, are not established by the report’s general footnote. The exact full-COD date is also not established by the combined ICOD/PCOD table or the appendix’s actual/expected/status column. (ACWA Power Investor Report, pp. 8, 24.)
- The reported online and operational capacities do not establish sustained measured output or current operating performance. (ACWA Power Investor Report, pp. 8, 24.)
- ACWA’s project page gives no site location more specific than next to the existing Rabigh 3 IWP Plant. (ACWA Power project page, project description; observed 17 October 2026.)
- Current procurement status and an open supplier opportunity are not established by the reviewed project-page and investor-report material; no buying window is inferred. (ACWA Power project page, project description and key facts; Investor Report, pp. 8, 24.)
Current purchasing availability: unknown.
Source-dated plans do not establish current progress or available supplier packages.
## Project metadata
Country: Not established
Region: Not established
Physical assets: Desalination
Derived from the exact released evidence; unresolved fields remain unclassified.
## Project category
Water and environment
Derived from the reviewed sector statement; delivery stage remains unclassified.
Water desalination.
Source: acwapower.com — https://acwapower.com/en/what-we-do/projects/rabigh-4-ipp/ | published unknown | observed 2026-10-17T16:42:11.391537+00:00
Project overview
Oldest decisive evidence: 2026-10-17T16:42:11.391537+00:00
Newest evidence: 2026-11-05T16:16:54.256063+00:00
Knowledge reviewed: 2026-11-05T16:21:44.369945+00:00
Publication reviewed: 2026-11-05T16:21:44.369945+00:00
## Date
Scheduled to be commissioned by 31 March 2026; the key facts list commercial operations in Q1 2026.
Status: planned
Attribution: acwapower.com
Source: acwapower.com — https://acwapower.com/en/what-we-do/projects/rabigh-4-ipp/ | published unknown | observed 2026-10-17T16:42:11.391537+00:00
## Name
Rabigh 4 IWP. The document title says “Rabigh 4 IPP,” while the body heading and description identify it as “Rabigh 4 IWP.”
Status: reported
Attribution: acwapower.com
Source: acwapower.com — https://acwapower.com/en/what-we-do/projects/rabigh-4-ipp/ | published unknown | observed 2026-10-17T16:42:11.391537+00:00
## Owner
Consortium ownership reported as ACWA Power 45%, Haji Ali Reza (HAACO) 35%, and Al Moayyed 20%.
Status: reported
Attribution: acwapower.com
Source: acwapower.com — https://acwapower.com/en/what-we-do/projects/rabigh-4-ipp/ | published unknown | observed 2026-10-17T16:42:11.391537+00:00
## Scope
600,000 m³/day SWRO desalination plant, PWSF tank facility with 1,200,000 m³ capacity, and PV capacity of 6.804 MWp.
Status: reported
Attribution: acwapower.com
Source: acwapower.com — https://acwapower.com/en/what-we-do/projects/rabigh-4-ipp/ | published unknown | observed 2026-10-17T16:42:11.391537+00:00
## Sector
Water desalination.
Status: reported
Attribution: acwapower.com
Source: acwapower.com — https://acwapower.com/en/what-we-do/projects/rabigh-4-ipp/ | published unknown | observed 2026-10-17T16:42:11.391537+00:00
## Country
Saudi Arabia.
Status: reported
Attribution: acwapower.com
Source: acwapower.com — https://acwapower.com/en/what-we-do/projects/rabigh-4-ipp/ | published unknown | observed 2026-10-17T16:42:11.391537+00:00
## Location
Next to the existing Rabigh 3 IWP Plant; no more specific site location is stated.
Status: reported
Attribution: acwapower.com
Source: acwapower.com — https://acwapower.com/en/what-we-do/projects/rabigh-4-ipp/ | published unknown | observed 2026-10-17T16:42:11.391537+00:00
## Investment
Reported project cost: US$675 million.
Status: reported
Attribution: acwapower.com
Source: acwapower.com — https://acwapower.com/en/what-we-do/projects/rabigh-4-ipp/ | published unknown | observed 2026-10-17T16:42:11.391537+00:00
## Source qualifications and unresolved questions
- Canonical facts retain their original source scope. Later source qualifications do not redefine the original asset or establish open supplier procurement.
ACWA's H1 2026 report lists Rabigh 4 IWP, Saudi Arabia, in its March 2026 table of projects that achieved their respective ICOD or PCOD and thus began contributing to ACWA's results. The row reports 600,000 m³/day incremental capacity, 600,000 m³/day online capacity, and a dash for remaining capacity to bring online. ACWA defines online capacity as capacity in operation as at the stated ICOD/PCOD date. (reported). ACWA Power (externally supplied capture), evidence received 2026-11-05; https://www.acwapower.com/media/t5we4kaq/acwa-power_q2-report-2026_en_v19-1.pdf
ACWA places Rabigh 4 IWP under “FULLY OPERATIONAL ASSETS CONTD.” Its appendix row reports Saudi Arabia, SWRO technology, 600,000 m³/day operational capacity, and Q1 2026 in the “PCOD (Actual / Expected)/Status” column. (reported). ACWA Power (externally supplied capture), evidence received 2026-11-05; https://www.acwapower.com/media/t5we4kaq/acwa-power_q2-report-2026_en_v19-1.pdf
## Cite this dossier
CapexCue — Rabigh 4 IWP — dossier released 2026-11-05T16:21:44.369945+00:00, release 2 (3c36e3d2-ca62-4402-9792-83e43259f82a) — https://capexcue.com/projects/rabigh-4-iwp-the-document-title-says-rabigh-4-ipp-while-the-body-heading-and-description-identify-it-as-rabigh-4-iwp-10c075bb-b5d/.
For current information and later dossier updates, visit .
This file records the release identified above; the current dossier may change.