Key Highlights
- IPX Power’s Darden project received one of the largest U.S. clean energy financings for a combined solar and battery storage development.
- The California-based project will include 1.15 GWac / 1.6 GWp of solar power and 4.6 GWh of battery storage to strengthen grid flexibility.
- Aurora supported lenders with market, transmission, and revenue analyses to assess the long-term viability of projects in California’s power market.
Aurora Energy Research has played a key role in supporting the financing of IPX Power’s Darden solar and battery storage development in California, a landmark renewable energy project backed by approximately $4.95 billion in financing.
The Darden project is expected to become one of the largest combined solar and battery storage facilities in the United States, reflecting growing investor confidence in large-scale clean energy infrastructure and grid modernization.
Massive Renewable Energy Capacity Planned
Located in California, the Darden development will include more than 1.15 GWac / 1.6 GWp of solar generation capacity alongside 4.6 GWh of battery storage, designed to improve energy reliability and support increasing renewable penetration across the grid.
The large-scale battery component is especially significant, enabling stored solar energy to be deployed during peak demand periods and helping stabilize electricity supply in a state increasingly reliant on renewable sources.
Complex Multi-Billion-Dollar Financing Structure
The financing package includes $4.95 billion in construction debt, structured through multiple funding mechanisms. This includes a $403 million letter of credit facility, a $911 million tax equity bridge loan, a $1.81 billion tax credit transfer bridge loan, and a $1.83 billion construction loan that will convert into a term loan after project completion.
In addition, the project secured approximately $929 million in tax equity investments and agreements tied to an estimated $2.13 billion in investment tax credits, underscoring the growing role of tax incentives in accelerating renewable energy deployment.
A consortium of major financial institutions participated in underwriting the debt facility, including MUFG Bank, Deutsche Bank, Santander, HSBC, and JPMorgan Chase.
Aurora’s Role in Market Analysis
Aurora Energy Research served as a market and transmission consultant to lenders, providing independent analysis of long-term power market dynamics, revenue expectations, and electricity flow forecasts for California’s energy system.
According to Oliver Kerr, large transactions such as Darden demonstrate the increasing complexity of modern power markets and the importance of data-driven analysis in supporting investment decisions.
The Darden financing signals continued momentum for utility-scale renewable energy projects as developers and investors push to expand clean power generation and energy storage capabilities in the U.S.