On 14 September 2026, a water consumption briefing published by vision2030.ai set out the scale of Saudi Arabia's water scarcity challenge and identified treated wastewater reuse as one of the central pillars of the Kingdom's response, alongside desalination expansion and agricultural reform. The briefing noted that per-capita consumption exceeds 250 litres per day, that the Saudi Water Authority operates desalination capacity exceeding 7.5 million cubic metres per day, and that agriculture has historically accounted for over 80 per cent of total water withdrawal.
Key takeaways
- The Saudi Water Authority operates a desalination network with total production capacity exceeding 7.5 million cubic metres per day along the Red Sea and Arabian Gulf coasts, according to vision2030.ai.
- Per-capita water consumption in the Kingdom exceeds 250 litres per day, reported vision2030.ai, well above the global average.
- Agriculture has historically accounted for over 80 per cent of total water withdrawal, with the phase-out of water-intensive crops and a shift to controlled-environment agriculture underway, according to vision2030.ai.
- The treated wastewater reuse rate is described as growing but still below potential, with the National Water Strategy targeting substantial increases in reuse for irrigation, industrial processes and aquifer recharge, per vision2030.ai.
- Non-revenue water losses in some urban distribution networks have historically exceeded 25 per cent of supply, with the National Water Company running performance improvement programmes to cut that figure, reported vision2030.ai.
What happened
The 14 September 2026 vision2030.ai briefing frames wastewater reuse as an active area of investment and policy focus rather than a marginal supplement. Treated effluent is identified as a feedstock for irrigation, industrial cooling and process water, and for managed aquifer recharge, with the National Water Company managing urban collection and the National Water Strategy setting the reuse trajectory.
On the supply side, the same briefing notes that the Saudi Water Authority, formerly the Saline Water Conversion Corporation, runs a coastal desalination fleet supplying the majority of municipal and industrial demand in major cities, and that new capacity is being added through independent water producer (IWP) projects including Jubail 3A and Rabigh 4. Tiered residential tariffs and smart metering are being used to push down per-capita demand, while building codes mandate water-efficient fixtures and greywater recycling in new construction.
A second analysis, published on 27 September 2026 by Spherical Insights, puts the opportunity in cash terms, citing the 2025 Saudi Vision 2030 Annual Report figure of more than $64 billion invested across the water value chain, including more than $56 billion from the private sector, and total desalination production capacity of more than 16 million cubic metres per day across over 40 seawater desalination plants. The same analysis flags the Al-Haer independent sewage-treatment project, with treatment capacity of 200,000 cubic metres per day, as a privately developed wastewater asset in the active pipeline.
| Project / facility | Role | Reported capacity |
|---|---|---|
| Al-Haer independent sewage-treatment project | Privately developed wastewater reuse asset | 200,000 m³/day |
| Jubail 3A IWP (Build-Own-Operate) | Desalination, SAR 2.4 billion project cost | 600,000 m³/day |
| Jubail 3B IWP | Desalination, privately developed | 570,000 m³/day |
| Planned Jubail–Buraydah pipeline | Water transmission, 603 km | 650,000 m³/day |
Both briefings are explicit that international developers, including ACWA Power, Veolia and Engie, are participating in desalination and wastewater projects through long-term concession agreements, and that public-private partnerships remain the primary delivery mechanism for new water infrastructure, per vision2030.ai and Spherical Insights.
Specification read
The 14 September 2026 briefing reports treated wastewater reuse as a strategic target across irrigation, industrial process water and aquifer recharge, with a municipal collection network run by the National Water Company. The Al-Haer project reported by Spherical Insights sits at 200,000 m³/day, or 200 MLD, a scale that is well within the envelope of a large municipal sewage treatment works serving several hundred thousand population equivalents (general industry range, not from the sources). For an asset of this size the conventional treatment train runs screening and grit removal, primary clarification, biological treatment (typically A2O or MBR for the reuse-grade effluent the strategy is targeting, with MBBR or SBR as alternatives), followed by tertiary filtration and disinfection, often with DAF polishing upstream of the membranes where fats, oils and industrial trade waste are present, and reverse osmosis plus UV or chlorination where aquifer recharge or industrial reuse is the end use. A facility of this flow class also typically carries a ZLD or partial brine recovery scope when the reuse stream is blended with desalination brine, although the source does not specify whether Al-Haer includes ZLD. The 14 September briefing's separate point that non-revenue water losses in some urban networks have historically exceeded 25 per cent signals that rehabilitation of collection and metering, not just new treatment trains, is part of the procurement pipeline. Operators of municipal sewage plants in the 50–250 MLD band, or plants receiving mixed industrial trade waste with BOD in the 200–500 mg/L range and tightening reuse or aquifer-recharge discharge limits, are the cohort most likely to see Saudi procurement activity in this class (general industry range, not from the sources). Buyers specifying Municipal reuse plants will also be weighing Water Purification and pre-treatment packages against the local RO membrane manufacturing capacity the market analysis highlights.
FAQ
What capacity class does the Al-Haer project fall into, and what does that mean for a typical plant enquiry?
Al-Haer is reported at 200,000 m³/day, or 200 MLD, by Spherical Insights. That puts it in the large-municipal envelope where biological treatment is usually A2O, MBR or SBR followed by tertiary filtration and disinfection; for a buyer, it is the size class where packaged MBR or SBR skids are no longer economic and a custom civil build is typical (general industry range, not from the sources).
What is Saudi Arabia's policy on treated wastewater reuse right now?
According to the 14 September 2026 vision2030.ai briefing, the National Water Strategy is targeting a substantial increase in treated effluent reuse for irrigation, industrial processes and aquifer recharge, with the current reuse rate growing but still below potential.
Who is delivering these projects, and how are they financed?
Both vision2030.ai and Spherical Insights report that international developers including ACWA Power, Veolia and Engie are participating under long-term concession agreements, with the Saudi Water Partnership Company running the IWP tendering process.
What is a realistic lead time and budget band for a 100–200 MLD reuse upgrade in this market?
Neither source gives a Saudi-specific lead time or EPC price. As an order-of-magnitude reference, a 100–200 MLD reuse upgrade of the type implied by the strategy is typically delivered in 24–36 months from Notice to Proceed, with EPC values in the low hundreds of USD per cubic metre of daily capacity (general industry range, not from the sources). Buyers should treat those as sizing benchmarks only and request firm bids.
