Idemitsu Renewables Launches the Azalea Solar and Storage Project
Idemitsu Renewables, a subsidiary of Idemitsu Kosan Co., Ltd., has successfully announced the commencement of operations for its newest solar and storage project, Azalea, located in Kern County, California. As of December 31, 2025, the project has officially achieved Commercial Operation (COD), marking a significant milestone for the company in its mission to provide clean energy solutions.
The Azalea project integrates advanced technologies, marrying high-efficiency solar photovoltaic systems with a robust battery storage solution, optimizing energy delivery during peak demand periods and enhancing grid stability. This innovative approach is set to deliver not only clean energy but also reliability to California's power grid under a long-term power purchase agreement with Sonoma Clean Power Authority (SCP).
Project Overview
The Azalea facility is equipped with a solar capacity of 60 megawatts alternating current (MWAC) that is complemented by a 38 MWAC/152 megawatt-hour (MWh) lithium-ion battery storage system. Together, they are expected to generate enough electricity to power around 20,000 homes annually across Sonoma and Mendocino counties, while simultaneously offsetting approximately 50,000 metric tons of CO₂ emissions each year. This eco-friendly initiative aligns perfectly with California’s aggressive clean energy goals, presenting an example of how innovative projects can lead to sustainable energy solutions.
Funding for the project was facilitated through a consortium of financial institutions, including Mizuho Bank, Commerzbank, and U.S. Bank N.A. In particular, U.S. Bank played a dual role in providing both construction financing and tax equity investment, underscoring the diverse financial backing that supports the advancement of renewable energy projects.
Construction and engineering services for the Azalea project were carried out by SOLV Energy, renowned for its expertise in renewables. They ensured that the project was completed efficiently and to the required standards, contributing to the swift operational readiness of the facility.
Statements from Leadership
Cary Vandenberg, CEO of Idemitsu Renewables, shared his thoughts on the achievement, stating, "Achieving COD at Azalea underscores our team's ability to deliver complex renewable projects that provide both environmental and economic value." He further highlighted their commitment towards collaborating with organizations like U.S. Bank and Sonoma Clean Power to actualize California’s clean energy goals.
Supporting this initiative, Geof Syphers, CEO of Sonoma Clean Power, remarked, "The Azalea project coming online is an exciting milestone. It helps Sonoma Clean Power continue delivering clean energy to our communities and supports the State's work to get the most value out of daytime solar and improve grid flexibility during peak hours."
Conclusion
Overall, the successful operational launch of the Azalea Solar and Storage Project represents a positive step forward in the greater context of renewable energy development in California. With numerous projects in the pipeline, Idemitsu Renewables is poised to make significant contributions toward a more sustainable future, driving forward the vision of clean and reliable energy across North America. The Azalea facility is not just a source of renewable energy but a vital component in the ongoing transition towards sustainable energy systems. For frequent updates and more information, visit
Idemitsu Renewables.