This is a current list of solar manufacturers in the United States that produce solar panels for the traditional residential, commercial and utility-scale markets. This data was collected by Solar Power World editors and will be continually updated as facilities are started and/or expanded. If there is a American facility update related to solar panels not included on these lists, please contact editor Kelly Pickerel at kpickerel@wtwhmedia.com.

U.S. solar panel assembly facilities (that could make branded panels for other companies)

Company	HQ	U.S. location (city)	U.S. location (state)	Current Capacity (MW)	Expected Capacity/ Expansion Amount (MW)	Acts as OEM	Type	Status
Auxin Solar	USA	San Jose	California	150		OEM	c-Si	Producing
Convalt Energy	USA	Watertown	New York		900		c-Si	Under Construction
Crossroads Solar	USA	South Bend	Indiana	12	30		c-Si	Producing
First Solar 1	USA	Perrysburg	Ohio	600			CdTe thin-film	Producing
First Solar 2	USA	Lake Township	Ohio	1800	1200		CdTe thin-film	Producing
First Solar 3	USA	Lake Township	Ohio		3500		CdTe thin-film	Under Construction
First Solar 4	USA	Decatur	Alabama		3500		CdTe thin-film	Under Construction
GAF Energy	USA	San Jose	California	50			c-Si (solar shingles)	Producing
GAF Energy	USA	Georgetown	Texas		250		c-Si (solar shingles)	Under construction
Heliene Minnesota 1	Canada	Mountain Iron	Minnesota	150	150		c-Si	Producing
Heliene Minnesota 2	Canada	Mountain Iron	Minnesota	420			c-Si	Producing
Heliene Florida	Canada	Riviera Beach	Florida	100			c-Si	Producing
JinkoSolar	China	Jacksonville	Florida	400			c-Si	Producing
Locally Grown Power	USA	Pomona	California		13.5		c-Si	Unknown
Merlin Solar	USA	San Jose	California	5			c-Si	Producing
Meyer Burger	USA	Goodyear	Arizona		1500		c-Si	Under Construction
Mission Solar	USA	San Antonio	Texas	200	800		c-Si	Producing
Qcells 1	South Korea	Dalton	Georgia	1700			c-Si	Producing
Qcells 2	South Korea	Dalton	Georgia		1400		c-Si	Under Construction
Silfab Solar -Bellingham	Canada	Bellingham	Washington	400			c-Si	Producing
Silfab Solar - Burlington	Canada	Burlington	Washington	400			c-Si	Producing
Solar4America	USA	Sacramento	California	650			c-Si	Producing
SunSpark/SolarMax	USA	Riverside	California	250		OEM	c-Si	Producing
SunSpark	USA	City of Industry	California	250		OEM	c-Si	Producing
SunTegra	USA	Binghamton	New York	10			c-Si (solar shingles)	Producing
Toledo Solar	USA	Perrysburg	Ohio	100			CdTe thin-film	Producing
Trading Philadelphia Solar	USA	??	??		1200		c-Si	Under Construction

Branded solar panels manufactured using a U.S. OEM (that could be listed above)

Company	HQ	U.S. location (city)	U.S. location (state)	Current Capacity	Expected Capacity	Uses OEM	Type	Status
CertainTeed Solar	USA	San Jose	California	~120 MW		Uses OEM	c-Si (solar shingles + panels)	Producing
Lumos Solar	USA	San Jose	California	~1 MW		Uses OEM	c-Si	Producing
Prism Solar	USA	San Jose / San Antonio	California / Texas	~150 MW		Uses OEM	c-Si	Producing

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The United States is growing its domestic polysilicon solar manufacturing abilities. A traditional silicon solar panel requires polysilicon, which is then shaped into silicon ingots, which are then cut into silicon wafers, which turn into silicon solar cells that are finally assembled into silicon solar panels. As new facilities start through every step of the silicon solar manufacturing process, they will be added here.

U.S. silicon ingot, wafer and solar cell manufacturing facilities

Company	U.S. location (city)	U.S. location (state)	Current Capacity (MW)	Expected Capacity (MW)	Silicon Product Type	Status
SEM Wafertech (SPI Energy)	Sacramento	California		1500	wafer	Under Construction
3Sun (Enel)	???	???		3000	cell	Under Construction

 

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Last updated November 2022.