Bellefield is a two-phase project, with each phase comprising 500MW of solar power and 500MW of four-hour battery-based energy storage.
Under a 15-year agreement with Amazon, the project will generate electricity sufficient to power 467,000 homes annually and reduce carbon dioxide emissions by over one million tonnes each year, contributing to improved air quality in the region. The construction of Bellefield 1 created more than 700 union jobs, with an additional 1,000 jobs expected during peak construction periods for future phases, boosting local employment opportunities.
AES president and CEO Andrés Gluski highlighted the project’s significance, stating: “Completing the first 1,000MW of Bellefield demonstrates how rapidly solar and storage can be deployed to meet the growing energy demand of data centers.” He added: “Our best-in-class track record of delivering renewables projects on time and on budget is deeply valued by our customers and is one of our key competitive advantages.”
To enhance construction efficiency and system reliability, AES utilized Maximo, an AI-powered robotic assistant developed in-house. Maximo supports on-site workers by improving safety protocols and increasing the speed and accuracy of solar module assembly, streamlining the construction process.
AES has secured contracts with major global tech companies for over 10GW of renewable power, including the 2GW Bellefield project. In May 2025, AES signed two long-term power purchase agreements to supply 650MW of solar power to Meta’s data centers in Texas and Kansas, further expanding its renewable energy portfolio. The Bellefield project underscores AES’s commitment to meeting the rising energy demands of data centers while advancing sustainable energy solutions.
The completion of Bellefield 1 positions AES as a leader in delivering large-scale solar and storage projects, supporting the transition to cleaner energy sources. As the second phase progresses toward its 2026 completion, the project is expected to set a benchmark for renewable energy integration and economic benefits in California and beyond.
