The Abu Dhabi project will pair 5.2GW of solar with 19GWh of battery storage in an ambitious effort to deliver 1GW of continuous renewable electricity.
ABU DHABI — Masdar has reached financial close on a $6.1 billion solar and battery storage project in Abu Dhabi designed to deliver renewable electricity around the clock, advancing one of the world’s largest attempts to combine utility-scale solar generation with enough storage to provide a continuous power supply.
The project will integrate a 5.2-gigawatt solar photovoltaic facility with a 19-gigawatt-hour battery energy storage system. Masdar and the Emirates Water and Electricity Company (EWEC) expect the development to supply 1GW of electricity continuously, including during periods when the solar facility is not generating. Commercial operations are scheduled to begin in 2027.
Masdar describes the development as the world’s first gigascale “round-the-clock” renewable energy project. That characterization remains a company claim until the facility begins operating and its performance can be independently assessed.
Thirteen Banks Back the Project
The financing comprises $5.1 billion in debt from 13 international and regional banks, with Masdar contributing a further $1 billion in equity.
The lending group includes BNP Paribas, HSBC, Standard Chartered, Bank of China, KfW IPEX-Bank, Crédit Agricole, Société Générale and several leading UAE-based financial institutions. The breadth of the financing consortium reflects growing confidence among commercial lenders that battery storage has become an integral component of large-scale renewable infrastructure rather than a niche technology.
Financial close does not eliminate the project’s construction, operating or technology risks. It does, however, confirm that the developers have secured the capital required to proceed under the agreed financing structure.
Construction began in October 2025 across approximately 90 square kilometres in Abu Dhabi.
An Ambitious Test of Dispatchable Renewable Power
The project is designed to address one of solar power’s most significant limitations: electricity generation falls after sunset and fluctuates with weather conditions.
Rather than functioning as a conventional solar farm with supplemental batteries, the facility has been engineered as an integrated power system capable of delivering a consistent output. The 5.2GW solar array—more than five times the project’s planned continuous output—will generate sufficient electricity during daylight hours to both serve the grid and charge the battery system, which will then discharge overnight.
Reuters reported that the solar capacity was intentionally oversized to maintain reliable output throughout the year, accounting for seasonal and weather-related variations. That design makes the project one of the most ambitious demonstrations yet of using solar generation and battery storage to provide dispatchable renewable electricity at utility scale.
Battery systems are expected to be supplied by BYD and Sungrow, together providing the project’s 19GWh of storage capacity. Energy-Storage.news noted that CATL had originally been identified as the storage supplier when the project was announced in 2025, indicating that the procurement strategy evolved before financial close.
Falling Battery Costs Are Reshaping Energy Investment
The project comes as rapidly declining battery costs are changing the economics of renewable power.
Reuters, citing analysis from energy think tank Ember, reported that battery storage costs have fallen by roughly 20 percent annually over the past decade, while global battery deployments continue to accelerate. According to figures cited from the International Renewable Energy Agency, approximately 180GWh of battery storage was installed worldwide in 2024, nearly double the amount added the previous year.
Those trends are encouraging utilities and developers to move beyond batteries used primarily for short-term grid balancing toward projects capable of shifting large volumes of renewable electricity across many hours.
At the same time, analysts caution that the commercial viability of continuous solar-and-storage systems depends heavily on local conditions, including solar resources, land availability, financing costs, battery replacement cycles, electricity market design and transmission infrastructure. Reuters noted that in many regions, achieving a fully round-the-clock renewable power system may still require additional generation technologies or complementary energy sources.
Why It Matters
The significance of the Abu Dhabi project extends well beyond the UAE.
Electricity demand is rising rapidly worldwide, driven by industrial electrification, artificial intelligence data centres and broader economic growth. Governments are increasingly seeking ways to expand clean electricity generation while maintaining grid reliability.
If the Abu Dhabi facility performs as planned after entering service in 2027, it could become an important reference point for utilities and policymakers evaluating how integrated solar and battery storage can contribute to reliable, dispatchable power systems. Masdar is already pursuing similar projects in Uzbekistan and Kazakhstan, suggesting the company views the model as potentially scalable.
For now, the financing milestone demonstrates that projects combining renewable generation with large-scale battery storage can attract substantial commercial investment. Whether they become a widely adopted blueprint for delivering continuous clean electricity will depend on their operational performance once they begin supplying power to the grid.
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