PowerTransitions to Acquire 1,242 MW Roseton Generating Facility, Strengthening New York Energy Platform
PowerTransitions®, an independent power producer focused on redeveloping legacy power generation and industrial facilities, has announced an agreement to acquire the 1,242-megawatt Roseton Generating Facility in Newburgh, New York, from a subsidiary of Castleton Commodities International LLC (CCI). The transaction represents another significant milestone in the company’s expansion strategy as it continues building a diversified portfolio of strategically located power assets across key U.S. electricity markets.
The acquisition reinforces PowerTransitions’ commitment to modernizing existing energy infrastructure while preparing large-scale generation sites for future technologies that can improve grid reliability and support the ongoing energy transition. Once the transaction is completed, Roseton will become one of the cornerstone assets within the company’s growing portfolio, offering both immediate power generation capabilities and long-term redevelopment potential.
Located in Newburgh along the Hudson River, the Roseton Generating Facility has been supplying electricity to the New York Independent System Operator (NYISO) market since 1974. Operating as a dual-fuel natural gas-fired power plant, the facility has played an important role in supporting electricity demand across NYISO Zone G for more than five decades.
Its existing infrastructure, transmission interconnections, and strategic location position the facility as an attractive site for future energy investments. PowerTransitions intends to leverage these existing assets to create a comprehensive energy campus capable of supporting both conventional generation and emerging energy technologies.
The company believes the property’s extensive grid infrastructure offers opportunities to integrate additional resources that can enhance system flexibility and reliability. Among the planned future developments is the addition of energy storage systems, which are expected to complement existing generation assets while helping meet periods of peak electricity demand.
Energy storage has become an increasingly valuable component of modern electricity systems because it enables excess electricity to be stored and discharged when demand rises or renewable generation declines. By combining traditional generation with advanced storage technologies, PowerTransitions aims to maximize the site’s operational value while strengthening grid resilience.
Rather than constructing an entirely new facility, the company plans to capitalize on Roseton’s established infrastructure. Existing transmission connections, industrial land, and operational facilities significantly reduce the complexity associated with developing new energy projects, making redevelopment both economically attractive and operationally efficient.
The Roseton acquisition follows closely behind another major transaction announced by PowerTransitions involving the purchase of a portfolio of five power plants from affiliates of Alliance Energy Group. Together, the two acquisitions substantially increase the scale of the company’s operating platform.
Following completion of both transactions, PowerTransitions expects to operate approximately 1.8 gigawatts of power generation capacity distributed across eight power stations serving three major U.S. wholesale electricity markets: PJM Interconnection, the New York Independent System Operator (NYISO), and ISO New England (ISO-NE).
This geographic diversification provides the company with exposure to several of the nation’s most important electricity markets, each characterized by evolving demand patterns, increasing electrification, and ongoing investments in grid modernization.
The latest acquisition also represents another important development following Partners Group’s acquisition of PowerTransitions last year. Since becoming part of the global investment firm’s infrastructure portfolio, the company has accelerated efforts to expand its generation assets while pursuing opportunities to redevelop existing energy infrastructure into modern, multi-use energy facilities.
PowerTransitions Co-Founder and Chief Executive Officer Sean Long described the Roseton acquisition as a transformative milestone that complements the company’s broader growth strategy.
According to Long, Roseton is among the largest operating power plants in New York’s Hudson Valley and has been consistently maintained over many years. Its combination of established infrastructure, transmission connectivity, and sizable property creates an exceptional platform for future expansion and redevelopment.
He noted that the site’s characteristics make it particularly well suited for developing a large-scale energy campus capable of accommodating multiple technologies while supporting the reliability needs of the surrounding electrical system.
Long emphasized that electricity demand continues to increase throughout the region, driven by economic development, electrification initiatives, and growing power consumption across residential, commercial, and industrial sectors. In this environment, maintaining dependable generation resources while investing in next-generation technologies becomes increasingly important.
He also highlighted the company’s commitment to working closely with Roseton’s experienced workforce following the acquisition. Maintaining operational excellence and ensuring continuity during the ownership transition will remain priorities as PowerTransitions integrates the facility into its broader operating platform.
In addition to collaborating with plant employees, the company intends to engage with surrounding communities and regional stakeholders throughout future redevelopment efforts. Company leadership believes strong community partnerships will be essential as Roseton evolves into a diversified energy campus designed to meet future electricity needs.
Partners Group also expressed confidence in the strategic value of the acquisition. Ed Diffendal, Head of Infrastructure Americas for Partners Group, said Roseton represents another significant step in building a scaled portfolio of strategically positioned generation assets throughout New York.
He noted that the facility’s size, existing infrastructure, and location within the NYISO market provide considerable opportunities for future investment and redevelopment. These characteristics position Roseton to support evolving electricity requirements while offering flexibility for incorporating new technologies over time.
Diffendal further stated that Partners Group looks forward to continuing its collaboration with the PowerTransitions management team as the company expands its platform and optimizes operations across its growing portfolio of energy assets.
The acquisition aligns with broader industry trends that increasingly emphasize the redevelopment of existing generation sites rather than developing entirely new locations. Legacy power plants often possess valuable transmission infrastructure, environmental permits, transportation access, and industrial zoning that can significantly accelerate future energy development projects.
As electricity systems incorporate greater amounts of renewable energy, existing power facilities equipped with strong transmission connections become attractive candidates for hybrid energy developments that combine traditional generation, battery storage, and potentially other emerging technologies.
The Roseton facility appears well positioned to benefit from this evolving approach. By retaining valuable infrastructure while introducing new energy assets, PowerTransitions aims to create a more flexible generation platform capable of adapting to changing market conditions and customer needs.
The Hudson Valley region itself represents an important part of New York’s electricity network. Continued economic growth, infrastructure investment, and increasing electrification across transportation and buildings are expected to contribute to higher electricity demand over the coming years. Maintaining dependable generation resources while expanding energy storage capacity may play a critical role in supporting regional reliability during this transition.
PowerTransitions’ redevelopment strategy reflects an industry-wide recognition that existing energy infrastructure can continue providing value when modernized with advanced technologies. Rather than replacing legacy facilities outright, companies are increasingly seeking ways to repurpose established industrial sites into integrated energy hubs capable of supporting multiple forms of electricity generation and storage.
Upon completion of the Roseton transaction, PowerTransitions will significantly strengthen its presence within New York while expanding its overall operational footprint across the northeastern United States. The addition of the 1,242 MW generating facility enhances the company’s generation capacity and provides a strong foundation for future investment in grid-supporting technologies.
The transaction remains subject to customary closing conditions and regulatory approvals. Assuming those requirements are satisfied, the acquisition is expected to close later this year. Once finalized, Roseton will become one of the largest assets within the PowerTransitions portfolio and serve as a key component of the company’s long-term strategy to deliver reliable electricity while advancing the redevelopment of critical energy infrastructure across major U.S. power markets.
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