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Greenflash acquires 200 MW storage project in Texas from Advanced Power

Greenflash Infrastructure has acquired a 200 MW standalone storage project in Texas, marking a strategic asset transfer aimed at reinforcing local grid reliability.

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Greenflash Infrastructure, L.P. announced the acquisition of the Rock Rose project, a battery energy storage facility with a capacity of 200 megawatts (MW) and 400 megawatt-hours (MWh), located in Fort Bend County, Texas. This standalone project, currently in pre-Notice-to-Proceed (pre-NTP) phase, was previously owned by Advanced Power. The transaction represents a significant asset transfer within the Texas electricity network operated by the Electric Reliability Council of Texas (ERCOT).

Immediate integration into Greenflash’s ERCOT strategy

The Rock Rose project joins Greenflash’s portfolio dedicated to ERCOT, where the company plans to deploy up to 5 gigawatts (GW) of capacity. According to the firm, the asset was selected for its location, transmission access, and ability to support grid stability. The site is fully permitted and interconnection-ready, with commercial operations targeted for mid-2027 following a Notice to Proceed expected in 2026.

A targeted asset transfer in a high-pressure market

Advanced Power, the original project owner, stated that the sale enables Rock Rose to benefit from accelerated execution in a context of rising energy reliability needs. The project will now be developed by Greenflash, which is focused on large-scale standalone deployments. The Chief Executive Officer of Advanced Power noted the necessity for the Texas market to access operational solutions capable of meeting fluctuating demand.

Rock Rose is designed as a two-hour discharge battery storage facility, built to provide targeted support during peak demand periods while contributing to grid balancing. Greenflash plans to implement the project in alignment with its other ongoing ERCOT developments.

A transaction aligned with portfolio repositioning

This deal illustrates an active trend of asset transfers within the U.S. energy storage sector. Advanced Power is continuing to streamline its portfolio towards complementary segments, including thermal and renewable infrastructure. By selling Rock Rose, it enables Greenflash to capitalise on a ready-to-execute project that is strategic within a large-scale growth programme.

The transaction reflects current market dynamics in Texas, where energy asset exchanges are increasingly structured and aligned with buyer execution capabilities.

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