AT A GLANCE
Delta Products
Environment
12.9 MW battery energy storage site designed and operated by CleanAmps
Goals
Results
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Delta grid-forming string PCS proves hybrid (on-grid/off-grid) battery energy storage system effectiveness in AI data centers.
The Situation: When Simple Energy Storage is Not Enough
As grid power becomes increasingly restricted and volatile, battery energy storage systems (BESS) have stepped in to ensure AI data center power reliability. Data centers need a platform that promotes grid stability and power resilience for AI workloads and enables operators to quickly implement new energy strategies—especially in grid-constrained, weak-grid, and off-grid environments.
How do you test this platform? With a MW-scale, live deployment.
Read all about it below, or view the PDF.
Delta partnered with CleanAmps, an energy consultant and renewable energy services company, on just such a project. Meadow Park, fully commissioned as of March 2026, is a 12.9 MW battery energy storage deployment outside Plano, Texas.
"We see Meadow Park as a practical platform for more than core controls integration. It supports the continued development of CleanAmps’ Generation Management System, Load Management System, and a broader economic dispatch platform designed to enable automated, dynamic trading and dispatch decisions based on real-time grid conditions, asset availability, and market signals across both grid-interactive projects and microgrid applications."
—Josh Gunderson, Chief Operating Officer, CleanAmps
At the solution’s core is the Delta PCS 4300, a modular, bidirectional, highly efficient (up to 98.7%), grid-forming, string-type power conditioning system (PCS) that delivers a more scalable way to store, optimize, and manage energy both on or off the grid.
The Challenge: Proving a Power-Conversion Setup for the AI Future
The project called for a largely untried power-conversion architecture. Because PCS string technology is newer than traditional PCS central designs, it hasn’t yet entered the mainstream. Off-grid energy storage and operation, too, is still an emerging application. That raised expectations for performance, reliability, and execution.
Meadow Park also had to address a broader market shift. As power-intensive facilities squeeze utility infrastructure, concerned (nervous? frantic?) AI data center owners are embracing adaptations such as peak shaving, renewable integration, microgrids, and more. Beyond demonstrating mere technical capability, Meadow Park was built to prove it offered the flexibility and scalability required for a more distributed energy future.
The Solution: Smooth, On- and Off-Grid, Replicable Power
Delta is a pioneer in PCS string technology and a current industry leader. At Meadow Park, the PCS 4300 is integrated with a Delta PCS 4300 medium voltage skid, creating a high-performance platform for efficient power conversion and modular scalability. Its grid-forming capability handles off-grid workloads with ease.
Extremely efficient, the PCS 4300 maximizes usable energy, cuts conversion losses, and makes storage more cost-effective with stronger charge/discharge performance and more value from every megawatt.
PCS string modularity offers key advantages compared to PCS central designs. Foremost is reliability: If one of the PCS 4300’s 20 modules goes down, the unit still provides roughly 95% of the power; a central PCS system’s failure, although rare, shuts down the entire show. That makes the PCS 4300 suited for projects that need to quickly expand or accommodate new energy realities.
“Delta’s string PCS architecture brings meaningful advantages for applications where resilience, modularity, and control flexibility matter. It helps reduce single-point failure exposure and provides a better framework for managing battery string imbalance, which the storage industry is increasingly recognizing as an important performance and capacity issue.”
—Breck Boven, Chief Technical Officer, CleanAmps
Delta engineering and controls integration teams worked closely with CleanAmps and the local AHJ (authority having jurisdiction) to seamlessly integrate and deploy the hardware. Delta’s efforts included customizing the PCS for off-grid load smoothing, analyzing live data, optimizing throughput and reliability, and more.
Meadow Park’s commissioning took only two weeks. The site will continue to simulate and test various power combinations, including other Delta equipment.
Conclusion: Ready for Anything
Turns out the right AI power infrastructure can promote, rather than constrict, AI scale. Compared to central PCS systems, string PCS provides data centers with higher reliability and modular scale.
By proving the practicality of an on-grid/off-grid, modular energy-storage architecture in a live, 12.9 MW operation, Meadow Park establishes the data center value of grid-forming, PCS string technology and further positions Delta as an expert, innovative partner for energy storage projects.
To learn more about our power conditioning systems, visit the Delta Energy Storage System page
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