NextStar Energy Battery Pack Production Begins at Ontario Plant

NextStar Energy has officially commenced battery pack manufacturing at its Windsor Battery Plant in Ontario, marking a major milestone in the company's production capabilities. The newly launched manufacturing line, announced on June 25, completes the facility's battery production workflow by adding pack assembly to its existing battery cell and module manufacturing operations. This development enables the company to achieve full vertical integration, allowing batteries to be produced from individual cells through to fully assembled battery packs at a single location.

Expansion Completes End-to-End Battery Manufacturing

The addition of the battery pack production line represents the third major stage of manufacturing at the Windsor facility. Until now, the plant had focused on producing battery cells and modules. With the latest expansion, NextStar Energy can now manufacture complete battery packs, creating a streamlined production process within one integrated facility. This capability is expected to improve manufacturing efficiency while supporting a broader range of battery applications.

Supporting Rising Demand for Energy Storage Systems

The investment is intended to address increasing global demand for energy storage systems (ESS). By expanding its manufacturing capabilities, NextStar Energy is positioned to diversify its product portfolio while reinforcing its role in the North American battery supply chain. The integrated production model also enhances the company's ability to support customers requiring complete battery solutions across various applications.

Company Growth and Production Milestones

Originally established as a joint venture with Stellantis, NextStar Energy now operates as a wholly owned subsidiary of LG Energy Solution. The company began commercial battery cell production in November 2025 and achieved another significant milestone in February 2026 by manufacturing its one-millionth battery cell. The latest battery pack production line further strengthens the company's manufacturing footprint in Canada and supports continued growth in advanced battery production.

Key Production Milestones

The following table summarizes the major milestones achieved by NextStar Energy at its Windsor Battery Plant.

Frequently Asked Questions

What is the significance of the new battery pack production line at NextStar Energy?
The new production line completes the company's battery manufacturing process by adding battery pack assembly to existing cell and module production. This full vertical integration allows NextStar Energy to manufacture complete battery systems within a single facility, improving production efficiency and expanding its ability to supply energy storage solutions. The expansion also strengthens the company's manufacturing presence in North America while supporting growing market demand for advanced battery technologies.

Who owns NextStar Energy?
NextStar Energy is currently a wholly owned subsidiary of LG Energy Solution after originally being established as a joint venture with Stellantis. The company continues expanding its battery manufacturing capabilities through investments such as the new battery pack production line at its Windsor Battery Plant in Ontario. These developments reinforce its strategic position within the North American battery manufacturing ecosystem and support future production growth.

What production milestones has NextStar Energy achieved?
NextStar Energy began commercial battery cell production in November 2025 before reaching the milestone of producing one million battery cells in February 2026. The launch of battery pack manufacturing on June 25 represents another important achievement by completing the facility's end-to-end battery production process. Together, these milestones demonstrate the company's continued expansion and increasing manufacturing capabilities in support of global energy storage system demand.