The Greater Houston region is poised to strengthen its position in America’s growing clean energy manufacturing sector with plans for a new 4.6-gigawatt (GW) solar module factory. The facility will expand domestic production capacity, support supply chain localization efforts, and contribute to the broader push to increase U.S.-made solar equipment.
SEG Solar is moving ahead with plans to build a third U.S. solar module manufacturing facility in the Greater Houston area, a project that would significantly expand the company’s domestic production capacity as demand for locally manufactured solar equipment continues to grow.
The new facility is designed to produce 4.6 gigawatts (GW) of solar modules annually and will increase SEG Solar’s planned U.S. manufacturing capacity to 10.6 GW per year once fully operational. The expansion comes as solar manufacturers continue to invest in domestic production to meet rising demand and navigate evolving supply chain and trade requirements.
According to the company, the Texas project will occupy approximately 1.15 million square feet and include both manufacturing and warehouse space. SEG has already entered into an agreement with a local construction firm to develop the site.
Construction is expected to be completed by March 2027, with commercial operations targeted to begin in May 2027.
The announcement arrives just weeks before the planned opening of SEG Solar’s second U.S. manufacturing facility, a 4 GW plant scheduled to begin operations on August 7, 2026. Together, the projects represent a major expansion of the company’s North American manufacturing presence.
Technology
A key feature of the new Houston-area facility will be its planned focus on heterojunction (HJT) technology, a next-generation solar cell architecture known for delivering higher conversion efficiencies and improved energy output. The company said the plant is being designed to support production of advanced modules that align with changing market requirements and future technology trends.
SEG Solar also indicated that the facility will incorporate systems intended to support compliance with U.S. sourcing and supply chain regulations. Enhanced traceability and material control measures are expected to help the company produce modules that meet increasingly stringent procurement standards.
Beyond module manufacturing, SEG is pursuing additional investments aimed at strengthening its supply chain. The company has begun planning an ingot and wafer manufacturing facility in Indonesia. A move intended to secure access to critical upstream components while reducing supply chain risks.
At the same time, SEG is evaluating potential locations in the United States for a dedicated HJT solar cell manufacturing plant. Such a facility would further localize production and give the company greater control over key stages of solar module manufacturing.
The expansion reflects a broader trend across the U.S. solar industry, where manufacturers are increasing domestic production capacity in response to growing clean energy deployment, federal incentives, and efforts to build more resilient supply chains.
If completed on schedule, the Houston-area project will strengthen Texas’ position as a major hub for solar manufacturing while adding substantial capacity to support utility-scale, commercial, and distributed solar projects across the United States.
Additionally, this project mirrors the ongoing momentum in U.S. solar energy development, spanning the construction of new manufacturing facilities across the country, alongside projects such as Highland Materials’ 16,000 MT polysilicon facility in Tennessee, which represents a different segment of the solar manufacturing value chain.
Factsheet: Greater Houston 4.6 GW Solar Manufacturing Facility
Project Overview
- New solar module manufacturing facility planned in Greater Houston, Texas
- Developer: SEG Solar
- Designed to expand domestic solar production capacity
Location
- Greater Houston area, Texas, USA
- Site size: ~1.15 million sq. ft.
- Includes factory and warehouse
Capacity
- 4.6 GW annual solar module production
- Planned total U.S. capacity: 10.6 GW
Timeline
- Second U.S. 4 GW facility opening: Aug 7, 2026
- Third facility completion target: March 2027
- Commercial production start: May 2027
Technology
- Transition to HJT (Heterojunction) solar technology
- High-efficiency module production focus
- Designed for next-generation solar performance
Supply Chain & Compliance
- FEOC-compliant manufacturing design
- Enhanced material traceability systems
- Stronger supply chain control and oversight
Expansion Strategy
- Planned ingot & wafer facility in Indonesia
- Potential U.S. HJT cell manufacturing site under review
- Vertical integration of solar supply chain
Impact
- Expands U.S. solar manufacturing base
- Strengthens Texas clean energy manufacturing hub
- Supports domestic supply chain resilience
- Advances localization of solar production
Leave a Reply