Tesla files $10.1B Texas solar factory plan as US push grows

Tesla filed plans for a $10.1 billion vertically integrated solar cell factory in Fort Bend County, Texas, that would produce ingot-to-module panels domestically and create 9,712 permanent jobs, according to documents filed with the Texas Comptroller.

"The Fort Bend County site would help to establish the location as economically competitive in relation to the other site," Tesla said in its application under the state's Jobs, Energy, Technology and Innovation program, prepared by consulting firm Kroll and signed July 22.

The project, codenamed "Project Crystal Sun," covers roughly 3,050 acres near Richmond, about 45 minutes southwest of Houston. Tesla allocated $1.5 billion for buildings and land improvements and $8.6 billion for equipment, with construction running 2026 through 2028 and commercial production targeted for the first quarter of 2029. The plant would handle ingot manufacturing, wafer production, coating, metallization, cell testing, and cleanroom infrastructure under one roof — a model that mirrors China's dominant solar supply chain rather than the module-assembly approach common in the US.

The filing is the manufacturing muscle behind Musk's pledge to build 100 gigawatts of annual US solar manufacturing capacity by 2028. Tesla is seeking a 10-year property tax cap under Texas's JETI program and referencing federal Section 45X advanced manufacturing credits, while warning it is evaluating sites in other states.

Vertical integration targets China's supply chain advantage

The equipment list describes a fully vertically integrated operation: raw polysilicon in one end, finished cells and modules out the other. Most US solar manufacturing today is module assembly using cells imported from Asia. China controls roughly 80 percent of global polysilicon, wafer, and cell production, and Tesla's plan to replicate that model on US soil would reduce its reliance on overseas suppliers at a time when tariffs under successive administrations have raised import costs.

The project would also support Tesla's broader energy business. The company already produces Megapack batteries in Brookshire, Texas, and the new facility would feed its residential solar and Powerwall operations. Kroll's economic impact statement estimates the project would add roughly $107 billion to Texas GDP and $6.4 billion in state and local tax revenue over 38 years.

Incentives and the Terafab connection

Tesla is requesting a 10-year cap on property taxes through the JETI program, arguing the incentives are needed to make the Fort Bend site competitive against at least one unnamed out-of-state rival. Without the break, Tesla's accountants estimated property tax liability at about $1.1 billion over 37 years. The company is also stacking federal help: the filing references Section 45X advanced manufacturing production credits, which provide up to $0.04 per watt for solar cells and $0.07 per watt for modules.

The solar proposal lands as Musk's companies expand their Texas footprint. SpaceX and Tesla broke ground on Terafab Texas, a $16.8 billion semiconductor plant in Grimes County that will span about 100 million square feet — more than five times the size of the current largest building on Earth. Musk has said the facility will produce AI chips for Optimus robots, orbital data centers, and self-driving technology.

Tesla has promised big American solar manufacturing before. The SolarCity Gigafactory in Buffalo, New York, was supposed to churn out 10 gigawatts a year and became one of the company's most criticized projects. The Solar Roof has struggled for years. But a vertically integrated ingot-to-module plant on US soil would be genuinely significant — the one part of the current Tesla story that aligns with the company's original mission at a time when its automotive business is stagnating.

Tesla shares carry a Hold consensus rating from Wall Street, with 10 Buy recommendations, 15 Holds, and three Sells over the past three months. The average price target of $380.47 implies roughly 15.8 percent upside from current levels. The filing is early — Fort Bend County would still need to create a reinvestment zone — and companies routinely file these applications to shop jurisdictions against each other. But if Tesla follows through, it would mark the largest single investment in US solar manufacturing capacity to date.

This article is for informational purposes only and does not constitute investment advice.