South Korea’s LG Energy Solution has marked a major milestone in North America’s clean-energy supply chain with the grand opening of the NextStar Energy battery manufacturing plant in Windsor, Ontario. The project, originally developed as a joint venture between LG Energy Solution and Stellantis, is the first commercial-scale EV battery cell manufacturing plant in Canada. It now positions the country as a key hub for advanced battery manufacturing and electrification technologies.

NextStar Energy battery manufacturing plant in Windsor, Ontario is backed by more than CAD 5 billion in investment. It spans 4.23 million square feet and has already produced over one million battery cells since initial production began in November 2025.

The facility is expected to supply battery cells for electric vehicles and emerging energy-storage applications such as grid storage and AI-driven data center infrastructure. Another battery manufacturing plant in Canada that would be welcoming production and supply this year is EcoPro’s $1.2 billion battery plant in Quebec that was halted in 2025 majorly due to tariffs among other reasons.

Factsheet for NextStar Energy Battery Manufacturing Plant in Windsor, Ontario

Location: Windsor in Ontario, Canada

Facility Size: 4.23 million sq ft manufacturing complex

Total Investment: CAD 5 billion

Developer and Owner: LG Energy Solution (sole owner as of 2026)

Original JV Partners:

• LG Energy Solution
• Stellantis

Primary Product: Lithium-ion battery cells for electric vehicles and energy-storage systems

Initial Production: November 2025

Jobs Created: 1,300 direct employees (targeting 2,500 at full scale)

Strategic Importance: Strengthens Canada’s EV and battery manufacturing ecosystem and supports electrification across automotive and energy sectors.

Project Team

LG Energy Solution – Project sponsor and sole owner of NextStar Energy as of 2026. Also responsible for battery technology, production, and facility operation.

Stellantis – Original joint-venture partner contributing automotive manufacturing expertise and EV battery demand through its vehicle brands.

NextStar Energy – Project company operating the Windsor gigafactory and overseeing battery cell production.

Government of Canada – Federal partner supporting the project through industrial policy and investment aimed at strengthening domestic EV manufacturing.

Government of Ontario – Provincial authority supporting infrastructure, workforce development, and investment incentives for the facility.

City of Windsor – Local authority facilitating permitting, infrastructure development, and regional economic development tied to the project.

Project Finance

NextStar Energy battery plant in Windsor represents one of the largest battery manufacturing investments in Canada, with more than CAD 5 billion committed to construction, equipment, and workforce development.

The project has also received significant backing from federal and provincial governments. This is also reflective of Canada’s strategy to build a domestic EV battery supply chain and compete globally in advanced manufacturing.

Additionally, the investment has already created over 1,300 direct jobs. Long-term employment is expected to grow to approximately 2,500 positions as production ramps up to full capacity. The facility is also a central component of Ontario’s emerging EV battery corridor, which includes mining, battery materials processing, vehicle manufacturing, and clean-energy infrastructure across the province.

Key Project Milestones

March 2022 – Joint venture announced between LG Energy Solution and Stellantis.

June 2022 – Project company named NextStar Energy and leadership appointed.

November 2022 – Construction begins in Windsor.

December 2023 – Structural “topping-out” milestone completed.

October 2024 – Battery module production initiated.

September 2025 – Construction phase completed.

November 2025 – Full electrode and cell production begins.

February 2026 – LG Energy Solution assumes full ownership of NextStar Energy.

March 2026 – Official grand opening of the Windsor battery gigafactory

Importance of the first and only commercial-scale battery manufacturing plant in Canada by NextStar Energy and LG

The official launch of the NextStar Energy facility highlights the rapid growth of North America’s EV battery manufacturing ecosystem. This is especially, being driven by increasing demand for electric vehicles and grid-scale energy storage.

Additionally, by establishing the first commercial-scale battery cell plant in Canada, LG Energy Solution is making the Windsor manufacturing site a cornerstone of the country’s advanced manufacturing sector and a key supplier to the North American EV market.

The project is also seen as a means to strengthen Canada-South Korea industrial collaboration. This is, of course, while supporting the electrification of transportation and expansion of energy-storage technologies across North America.