Renewable energy power station with energy storage

Precision Components for Energy Storage Systems

Specialized manufacturing partner supplying custom metal and plastic components to grid-scale and commercial energy storage OEMs

From battery enclosures to structural assemblies, we deliver reliable, scalable component manufacturing across domestic and global supply bases. Purpose-built for stationary energy storage—not automotive EVs.

Serving battery manufacturers, system integrators, and grid infrastructure companies

Who We Serve

We partner exclusively with companies designing and building stationary energy storage systems for grid and commercial applications

Grid-Scale Storage Manufacturers

Utility-scale battery energy storage system developers requiring reliable component supply

Battery Module & Pack Manufacturers

Companies producing battery modules and packs for stationary storage applications

Energy Storage Integrators

System integrators combining components into complete energy storage solutions

Infrastructure & Power Management

Companies developing infrastructure for renewable energy and grid stability

Our Focused Specialization

We intentionally do not serve automotive or passenger EV markets. Our expertise, processes, and supply chain are tailored exclusively to the requirements of stationary and grid-based energy storage systems.

What We Manufacture

Custom metal and plastic components engineered for the demanding requirements of energy storage applications

Metal Components

Metal stampings, fabricated and welded assemblies, machined components, structural frames, enclosures, brackets, and mounting hardware

Plastic Components

Injection molded parts, housings, covers, thermal management components, and specialized insulators

Assemblies & Finishing

Secondary operations including powder coating, plating, passivation, heat treatment, sub-assembly, and custom packaging

Rechargeable Battery energy storage system containers provide sustainable and renewable power electricity near wind turbine farms. 3d rendering illustration

Why Pennant Energy Systems

A strategic manufacturing partner built for the complexity and scale of energy storage programs

Energy Storage Expertise

Dedicated focus on stationary storage applications means we understand your technical requirements, quality expectations, and program timelines

Supply Chain Resilience

Domestic and international manufacturing footprint provides flexibility, risk mitigation, and competitive pricing across your supply base

Scalability & Repeatability

Engineered processes and tooling management ensure consistent quality from prototype through high-volume production runs

Quality Systems

Rigorous inspection protocols, PPAP/FAI support, and full traceability for mission-critical energy infrastructure components

Program Management

Dedicated support from RFQ through production, including tooling coordination, demand planning, and inventory strategies

Cost Transparency

Clear pricing structure and long-term partnership approach focused on value creation, not transactional relationships

Aerial view of battery energy storage systems under a clear blue sky

Ready to Discuss Your Component Requirements?

Whether you're launching a new energy storage program or seeking a more reliable manufacturing partner, we're equipped to support your requirements from engineering through production.

Engineering discussions and technical feasibility review

RFQ submission and competitive quoting process

Supply-chain partnership and program management support

Responses typically within one business day