
BLAIRSVILLE, Ga. — In response to the accelerating demand for renewable energy infrastructure and grid stability, Panel Built, Inc., a leading manufacturer of modular structures, has announced the launch of its newest product line: custom modular buildings for Battery Energy Storage Systems (BESS).
As renewable energy generation continues to surge across the U.S., the need for durable, flexible, and rapidly deployable energy storage solutions has become a national priority. Panel Built’s modular BESS facilities are designed to meet this demand — offering utilities, municipalities, and private operators a turnkey solution to enhance grid resilience, optimize energy storage, and support sustainability goals.
“We’ve been designing E-houses for years, so this is a logical next step,” said Steve Grzesik, Business Development Manager at Panel Built. “Our modular structures are already proven in power and utility settings. Now, we’re applying that expertise to energy storage.”
The new BESS product line provides customizable configurations built to meet local codes and the client’s operational requirements. These modular systems can be scaled and adapted for diverse energy storage needs, including:
Stationary BESS
Fixed battery systems housed within modular control buildings — ideal for substations, renewable integrations, or retrofit applications.
Skid-Mounted BESS
Compact, transportable systems for semi-permanent or remote installations.
Mobile BESS
Trailer-mounted units designed for temporary, emergency, or off-grid applications.
Containerized BESS
Fully integrated 20- or 40-foot enclosures equipped with HVAC, fire suppression, inverter systems, and safety monitoring.
Each structure is built off-site in Panel Built’s U.S. manufacturing facilities and shipped ready for installation — pre-fitted with batteries, chargers, and components such as inverters, cooling and exhaust systems, and hydrogen detection. This off-site modular construction approach minimizes on-site labor, shortens installation timelines, and ensures consistent quality control throughout production.
The company’s manufacturing process is designed for flexibility, enabling quick turnaround times to help clients meet project schedules and budget requirements — a critical factor in the fast-evolving clean energy and infrastructure sectors.
Panel Built’s expansion into modular BESS facilities aligns with the company’s long-standing expertise in prefabricated E-houses and industrial enclosures. Its modular design philosophy allows for safe, scalable, and relocatable solutions, catering to the needs of a power grid increasingly reliant on renewable integration and storage capacity.
As more states and utilities adopt ambitious clean energy targets, the need for battery storage infrastructure continues to climb. Modular BESS facilities like those developed by Panel Built provide a practical way to rapidly deploy energy storage systems where and when they are needed most.
“Our modular systems provide flexibility and reliability in critical environments,” Grzesik added. “By combining proven construction methods with the latest in energy storage integration, we’re helping utilities and commercial customers build the infrastructure that powers progress.”
Panel Built’s BESS buildings can support applications ranging from microgrids and renewable integration to peak shaving and load balancing — offering customizable electrical layouts, environmental controls, and safety systems tailored to each site.
Beyond BESS, Panel Built continues to manufacture a wide array of modular and prefabricated structures, including offices, mezzanines, guard booths, and military-grade facilities, all fabricated within its state-of-the-art U.S. plants.
For more details on Panel Built’s BESS and E-House modular solutions, visit panelbuilt.com/products/electrical-houses.
About Panel Built, Inc.
Founded in 1995 and headquartered in Blairsville, Georgia, Panel Built, Inc. is a nationally recognized manufacturer specializing in modular construction for commercial, industrial, and military applications. The company’s products include modular offices, cleanrooms, mezzanines, security booths, and prefabricated buildings, all designed and built in the U.S. and shipped worldwide.
Panel Built’s mission is to provide high-quality, flexible, and efficient modular solutions that enhance productivity, safety, and operational performance in critical industries.
Originally reported by Panel Built in Construction Dive.