TerraFlow Energy is a pioneering energy storage company headquartered in Katy, Texas, with additional facilities in Bellville, Texas. Focused on advancing grid-scale energy storage, the company specializes in next-generation flow battery technology designed to provide sustainable, long-duration storage solutions for utilities, large-scale power users, and renewable energy projects. Unlike conventional lithium-ion systems, TerraFlow’s flow batteries leverage non-flammable, water-based electrolytes and domestically sourced materials to deliver unmatched safety, efficiency, and longevity.
The company’s vision centers on accelerating the global shift to clean energy by enabling reliable, carbon-free energy storage that supports the integration of intermittent renewable sources into the grid. With a modular and scalable design capable of supporting 4–24 hours of energy storage, TerraFlow’s systems reduce operational costs for utilities while enhancing grid resilience and reliability. By collaborating with energy providers and innovators, TerraFlow bridges the gap between emerging renewable infrastructure and the need for stable, affordable power solutions.
Battery Technology
TerraFlow Energy’s core innovation lies in its advanced organic flow battery technology, engineered to overcome limitations of traditional lithium-ion systems. The batteries use a water-based, non-toxic electrolyte formulation to eliminate risks of thermal runaway and combustion, ensuring safer operation. Unlike lithium-ion cells, which degrade with deep discharge, TerraFlow’s flow batteries maintain efficiency over extended cycles—up to 20,000–40,000 cycles—while retaining more than 90% of their capacity over a 20+ year lifespan. The design prioritizes sustainability through the use of abundant, organically sourced materials and a carbon-neutral manufacturing process powered entirely by solar energy.
The system’s scalability is a key advantage, ranging from 1 MW to 10 MW configurations, adaptable to applications such as grid stabilization, renewable energy integration, and industrial energy resilience. TerraFlow’s batteries also avoid the need for supplementary gas, reduce maintenance costs, and feature rapid response times to support dynamic grid demands. A proprietary hydraulic management system optimizes fluid dynamics and controls, while redundancy features ensure fail-safe operation even under extreme conditions. By addressing the energy sector’s challenges—cost, safety, and environmental impact—TerraFlow’s flow batteries position large-scale energy storage as a viable backbone for modernizing grid infrastructure.
Recent Projects
In early 2025, TerraFlow made significant strides in advancing its technology. In March, the company launched a 50kW Sandbox Environment to accelerate development of flow battery stack configurations, hydraulic management systems, and DC infrastructure controls. This testing platform allows real-world evaluation of system efficiency and scalability while refining control algorithms. Building on this, it plans to deploy a 1-megawatt (MW) storage system in Q2 2025, demonstrating its ability to scale solutions for utilities and industrial clients.
The company also deepened partnerships in 2025, entering a joint development agreement with Pneumatic & Hydraulic Co. (P&H), which includes phased equity participation. This collaboration focuses on accelerating the design and manufacturing processes for TerraFlow’s battery modules. Simultaneously, its thought leadership initiatives highlighted challenges in energy storage for data centers and grids, underscoring the role of long-duration flow batteries in solving critical modern infrastructure demands.
Investors
TerraFlow Energy has established strategic partnerships to drive growth, including its collaboration with Pneumatic & Hydraulic Co. (P&H), which involves joint engineering efforts and equity stake integration. The company’s board includes industry veterans Jon Parrella (Founder and CEO) and Daniel Parrella (VP of Manufacturing), alongside technical advisors such as Dr. Ray Cline and Alexander Goldstein. Additional investors remain undisclosed, though affiliations with entities like the UC Berkeley Foundation have been implied. These alliances and expertise position TerraFlow to scale its technology and enter commercial markets while ensuring alignment with regional supply chain and sustainability goals.
Business Details
Location: Katy and Bellville, Texas, USA
Website: https://terraflowenergy.com/
LinkedIn: https://www.linkedin.com/company/104203051
