Bahrain’s Al Dur 2 IWPP Commissioned: $1 Billion Investment Adds 50 Million Gallons/Day of Desalinated Water

Recently, the Crown Prince and Prime Minister of Bahrain presided over the commissioning ceremony of the second phase of the Al Dur 2 Independent Water and Power Project (IWPP). The project represents a total investment of USD 1 billion. The facility has a power generation capacity of 1,500 MW and produces 50 million gallons (about 189,000 m³) of desalinated water per day, bringing Bahrain’s national total capacity to 5,044 MW of electricity and 204 million gallons per day of desalinated water. An extension of the first-phase Al Dur project, it is the country’s first power station connected to a 400 kV high-voltage transmission network.

The project was developed by a consortium formed by the Bahraini Electricity and Water Authority together with multiple international developers and Japanese companies. A developer representative stressed that the project’s on-schedule, sustainable completion demonstrates the mature project-management and delivery capability of large-scale Gulf water-and-power cogeneration projects. The IWPP model bundles power generation and desalination under a single concessionaire’s unified operation, which both dilutes infrastructure investment and stabilizes water and power supply through scale effects—a standard paradigm for small oil-producing Gulf states to secure their water security.

From a functional standpoint, the commissioning of Al Dur 2 fills two critical gaps for Bahrain. On the power side, the 1,500 MW capacity connected to the 400 kV high-voltage grid becomes a new anchor for the network, easing supply pressure during peak summer air-conditioning loads. On the supply side, the 50 million gallons per day of new desalinated water feeding into the national water network can partially replace long-overdrafted groundwater, buying a recovery window for the underground aquifers. Power and water purchase agreements lock in long-term cash flows, providing a predictable revenue base for project financing and subsequent operation and maintenance—the standard financial structure of Gulf IWPPs.

The essence of the IWPP (Independent Water and Power Project) model is to bundle power generation and desalination and award them to a single concessionaire, which secures stable revenue through 20–25-year power and water purchase agreements and then leverages capital via project finance. For governments, infrastructure is obtained without a one-time outlay of huge fiscal funds; for developers, technical risk and returns are clearly defined within the long-term agreements. This paradigm has been replicated across the Gulf for years. Bahrain, Qatar, Saudi Arabia, Oman and others have commissioned comparable projects intensively in recent years, with individual investments commonly ranging from hundreds of millions to several billion U.S. dollars, making the Gulf the world’s most active regional market for large-scale water infrastructure.

From a regional perspective, Bahrain, Qatar, Saudi Arabia and others have commissioned large IWPPs intensively in recent years, with desalination capacity growing markedly. For equipment and engineering suppliers, the Gulf’s “water-power cogeneration” market features large orders, good payment credit, and high technical standards; however, entry barriers are concentrated within a handful of international developers and locally sovereign-fund-led concession systems. New entrants mostly penetrate through equipment supply, engineering subcontracting, or joint ventures with local firms, where localized procurement and long-term O&M capability form the competitive key.

Notably, reverse osmosis’s substitution for thermal processes such as multi-stage flash (MSF) continues to accelerate in the region: lower energy consumption, shorter construction cycles, and higher modularity, with greater coupling potential with renewables such as photovoltaics. Bahrain’s commissioning once again confirms the resilience of the Gulf’s standard pathway of “water-power cogeneration plus RO dominance”; for suppliers of membranes, high-pressure pumps, and energy-recovery devices, the certainty of regional incremental demand remains prominent.