Water Desalination at Scale: Harch Water's 200M m³/yr Vision

Four hundred million Africans — roughly 30% of the continent's population — lack access to clean water. By 2030, the African Development Bank estimates that number will rise to 500 million as population growth outpaces infrastructure investment. In North Africa, the situation is especially acute: Morocco, Algeria, Tunisia, and Libya collectively withdraw 85% of their renewable freshwater resources annually, a ratio that the World Bank classifies as "extremely high stress." Desalination — the conversion of seawater or brackish water to potable water — is not a luxury for these nations. It is an existential necessity. Yet the entire African continent operates approximately 4.2 million cubic meters per day of desalination capacity, compared to 12.5 million in the Middle East and 7.8 million in the Asia-Pacific. Harch Water was established to close that gap, and our 200 million cubic meters per year production target by 2029 represents the most ambitious desalination program ever undertaken by a single African company.

The technology platform is reverse osmosis (RO), which has replaced thermal desalination as the global standard due to its dramatically lower energy consumption. Modern SWRO (seawater reverse osmosis) plants consume 3.0-3.5 kWh per cubic meter of potable water produced, compared to 10-15 kWh for multi-stage flash distillation. When powered by renewable energy at $0.022-0.028/kWh — the rates Harch Energy achieves across its North African portfolio — the energy cost of desalinated water falls to $0.07-0.10 per cubic meter. Add pre-treatment, post-treatment, membrane replacement, labor, and maintenance, and the full production cost reaches $0.45-0.55 per cubic meter — competitive with the $0.60-1.20 that many North African utilities pay for conventionally sourced and treated water that is subject to seasonal scarcity and quality degradation. Desalination powered by renewable energy is not just environmentally superior; it is economically superior when the full system cost of water scarcity is accounted for.

The Casablanca expansion — our flagship project — illustrates the model at operational scale. The existing 120,000 m³/day SWRO plant, commissioned in 2024, currently supplies 15% of Casablanca's potable water demand. The Phase 2 expansion, currently in construction, will add 180,000 m³/day of capacity, bringing the facility to 300,000 m³/day (110 million m³/year) by late 2027. The plant is co-located with a 45MW solar-wind hybrid installation that provides 85% of its electricity, with grid backup for the remaining 15%. The intake system uses beach wells rather than open-ocean intakes, reducing pre-treatment costs by 30% and eliminating the impingement and entrainment of marine organisms that plague conventional desalination plants. Brine discharge is managed through a diffuser system that achieves dilution ratios above 100:1 within 50 meters of the outfall, well within the threshold for minimal environmental impact as defined by the Mediterranean Action Plan.

Beyond Casablanca, Harch Water's pipeline includes three additional facilities at varying stages of development. The Dakar plant, a 150,000 m³/day installation currently in front-end engineering design, will address Senegal's acute urban water stress — Dakar's water supply meets demand only 280 days per year, with the remaining 85 days subject to rationing. The Abidjan plant, a 100,000 m³/day facility serving Côte d'Ivoire's economic capital, is in the environmental impact assessment phase with commissioning targeted for 2028. The Dakhla plant, a 80,000 m³/day installation co-located with Harch Intelligence's data center campus, will supply both potable water and the cooling water required for the 500MW AI compute facility, creating a symbiotic infrastructure model where desalination waste heat is captured for industrial processes. Together, these four facilities represent 630,000 m³/day — 230 million m³/year — of new desalination capacity, exceeding our 200 million target.

The financial structure reflects the unique characteristics of water infrastructure: high capital intensity, long asset life, and stable regulated returns. Each facility is financed through a project finance structure with 30% equity from Harch Water, 40% concessional lending from DFI partners (the EIB, AfDB, and Proparco have committed to the Casablanca and Dakar projects), and 30% commercial debt. Offtake is secured through 20-year take-or-pay contracts with national utilities, providing the revenue visibility that long-term debt servicing requires. The regulated return on equity averages 12-14% — lower than our technology and mining verticals, but with correspondingly lower risk and a 30+ year asset life that generates compounding returns well beyond the debt tenor. Water infrastructure is not the highest-return investment in our portfolio. It is the most durable.

The 200 million m³/year target is not aspirational — it is a construction schedule. Casablanca Phase 2 is 40% complete. Dakar FEED will be finalized by Q2 2026. Abidjan EIA submission is scheduled for Q3 2026. Dakhla groundbreaking is planned for Q1 2027. Every facility will be powered predominantly by renewable energy. Every facility will produce water at costs competitive with conventional sources. Every facility will serve populations that currently face water scarcity. The scale of the challenge — 400 million Africans without clean water — demands infrastructure at a pace and scale that conventional development models cannot deliver. Harch Water exists to deliver it.