Tesla and LG Energy Solution (LGES) are expanding their U.S. battery manufacturing footprint with a $4.3 billion lithium-iron phosphate (LFP) prismatic cell facility in Lansing, Michigan, aimed at supporting Tesla’s Megapack 3 energy storage systems.
Production is expected to start in 2027, tying Tesla’s large-scale energy storage supply chain more directly to domestic sources rather than relying on imported cells.
The Lansing site was previously a joint venture between LGES and General Motors for EV battery production. GM sold its stake to LGES in early 2025, leaving the nearly completed facility fully under LGES ownership. The facility will manufacture prismatic LFP cells—flat, rectangular cells with rigid enclosures—offering space-efficient packaging for battery modules and packs. This addition positions LGES as the first battery manufacturer globally to produce all three major cell formats: pouch, cylindrical, and prismatic.
Tesla’s Megapack 3 units, which will be assembled in Houston, Texas, will benefit from this dedicated domestic supply. The new facility complements other U.S.-based battery manufacturing, including LGES’s pouch-based LFP plant in Holland, Michigan, and the industrial park near Houston that hosts solar panel assembly from Sirius PV and Waaree.
The project aligns with broader U.S. policy objectives to strengthen domestic battery production and reduce reliance on imports, particularly as energy storage demand grows with renewable integration and large-scale data center electrification. By localizing production, Tesla may mitigate supply chain risk, reduce transportation costs, and gain tighter control over unit economics for Megapack 3 deployment.
For Tesla investors, the Michigan facility represents a significant capital investment on top of ongoing expenditure in AI, autonomy, and robotics. The $4.3 billion joint venture highlights the company’s strategic pivot toward energy solutions while diversifying revenue beyond the automotive segment. Tesla shares, trading around $395.56 as of March 2026, have returned 66.2% over the past year and 115.9% over three years, reflecting investor attention on the company’s expanding energy storage portfolio.
The Lansing plant could also affect Tesla’s cost structure and production capacity for energy storage products. Its successful ramp-up will be critical in determining how quickly Megapack volumes can support the heavy upfront investment and compete with established players such as BYD, CATL, and Fluence in the U.S. grid storage market.
