The U.S. solar industry has seen remarkable growth in recent years, and domestic manufacturing is playing a pivotal role. Several companies now stand out as leaders in producing high-efficiency panels that power both homes and utility-scale projects.
First Solar leads the American market with about 10.7 GW of annual manufacturing capacity. Unlike most competitors, it specializes in thin-film Cadmium Telluride (CdTe) panels, which deliver strong performance in high-temperature and low-light environments—ideal for diverse U.S. climates.
Qcells USA, based in Georgia, follows closely with around 8.4 GW of capacity. Its mono-crystalline silicon panels are highly popular for residential rooftops and commercial projects, offering efficiency, reliability, and sleek design.
Canadian Solar has strengthened its U.S. presence with manufacturing operations in Texas, contributing about 5 GW of capacity. It caters to both large-scale solar farms and mid-sized commercial deployments.
Another rising player is Illuminate USA, a joint venture involving LONGi Solar, operating in Ohio with nearly 5 GW of output. Its goal is to fortify the U.S. solar supply chain and reduce import dependence.
T1 Energy (linked with Trina Solar) rounds out the top five with a Texas facility of similar 5 GW capacity. The company is advancing TOPCon technology, which improves efficiency and reduces degradation over time.
Together, these manufacturers reflect the impact of the Inflation Reduction Act (IRA) of 2022, which incentivized domestic production and accelerated investment. Their growth also highlights sustainability commitments: for instance, First Solar and Qcells have earned EPEAT certifications, ensuring higher standards of eco-friendliness and worker safety.
In summary, the U.S. solar manufacturing sector is no longer just catching up—it is setting new global benchmarks. For homeowners, businesses, and policymakers, these five manufacturers represent the backbone of America’s clean energy future.
