T1 Energy Plans 5GW Solar Cell Plant in Texas to Strengthen US Supply Chain

T1 Energy

Texas Facility Marks New Phase for US Solar Manufacturing

T1 Energy announced plans to build a 5GW solar cell facility in Texas, aiming to address critical gaps in the US solar supply chain. The $850mn G2_Austin plant is scheduled to start production by late 2026. This project follows T1 Energy’s acquisition of Trina Solar’s US assets in 2024 and a rebranding from Freyr Battery, which abandoned its $2.6bn battery storage project in Georgia.

The new facility will supply cells to the 5GW G1_Dallas module plant, reducing reliance on imports from Asia. Current US solar cell capacity remains just 2GW, compared to 56GW of module production. This imbalance highlights the urgency of building more domestic cell production.

US Tariffs and Technology Drive Expansion

T1 Energy’s Texas project benefits from US tariffs and tax incentives, which encourage domestic solar manufacturing. The US Commerce Department has imposed anti-dumping duties on PV cells from Southeast Asia to counter circumvention of Chinese tariffs. Meanwhile, T1 Energy will adopt high-efficiency TOPCon technology, which uses n-type polysilicon. This move reflects the global shift from older Perc technology toward higher-performing solar cells.

However, tariff uncertainty has caused the company to lower its module production forecast for 2025 to 2.6–3GW, down from 3.4GW. T1 Energy is also holding off on long-term power purchase agreements until cost visibility improves. Despite these challenges, the Austin facility represents a major step toward reshoring solar cell production and securing domestic supply chains.

The Metalnomist Commentary

T1 Energy’s 5GW solar cell project signals a turning point for US clean energy policy, linking tariffs, incentives, and new technology adoption. If executed successfully, this facility could strengthen US energy independence while setting a precedent for integrated solar manufacturing in North America. However, cost pressures and tariff volatility remain significant risks for long-term stability.