Solar power was invented in America. Bell Labs made the first practical silicon solar cell in 1954, and US companies led the industry for decades before most production moved to Asia. Now solar manufacturing is coming back. New factories in Minnesota, Washington, South Carolina, Georgia and other states are building panels again, and a growing number of them use American-made cells, wafers and even polysilicon instead of just assembling imported parts. US makers also build the trackers and mounts that hold the panels and point them at the sun.
The featured makers below are one pick from each type of solar equipment. No company pays to be featured, and every featured company is also listed on its type page. Browse panels and trackers for the full lists. Each listing says where the cells, wafers and other parts come from, because a US factory address alone doesn't tell you how American a solar panel is.
See also batteries, lithium ion batteries, deep cycle batteries and battery chargers.
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Featured American solar makers
AllEarth Renewables makes the AllEarth Solar Tracker, a dual-axis, pole-mounted system for homes, farms, schools and businesses. Each tracker holds 20 or 24 panels on a galvanized steel mast and uses GPS and a hydraulic drive to follow the sun all day, producing up to 40% more energy than a fixed rooftop system. It lays flat in high winds and in deep cold. More than 7,000 have been installed across the US, over 3,000 of them in Vermont.
Made in: Williston, VT (trackers designed, engineered, assembled and tested).
Also listed under: Trackers
Source: AllEarth Solar Tracker, 2026 · AllEarth tracker info sheet, 2023, checked 10/2026
Williston, VTHeliene makes crystalline silicon solar panels for homes, businesses, community solar and utility projects. The line runs from 108-cell all-black rooftop panels to bifacial 156-cell utility panels up to 650 watts. Since 2024 Heliene has used US-made cells from Suniva in Georgia, and in 2025 it teamed with Hemlock Semiconductor, Corning and Suniva on the first all-American silicon panel chain: polysilicon and wafers from Michigan, cells from Georgia and assembly in Minnesota. Heliene says its 108HC All-Black rooftop panel uses American polysilicon, ingots, wafers and cells.
Made in: Mountain Iron, MN and Rogers, MN (panel assembly, 1.3 GW a year); US cells from Norcross, GA.
Imported: cells for many panels, mostly from India.
Also listed under: Panels
Source: Heliene, 2026 · Solar Power World, 2025 · PV Tech, 2026, checked 10/2026
Rogers, MN
Browse by type
Solar panels made in the USA: rooftop, commercial and utility panels, some with US made cells and wafers, built in Minnesota, Washington and South Carolina.
Solar trackers made in the USA: dual-axis pole-mounted trackers that follow the sun for up to 40% more power for homes, farms and businesses, built in Vermont.
Solar makers by state
- Minnesota: Heliene (Mountain Iron and Rogers), residential, commercial and utility solar panels, some with US cells
- South Carolina: Silfab Solar (Fort Mill), solar panels, with N-type cell production starting
- Vermont: AllEarth Renewables (Williston), dual-axis pole-mounted solar trackers
- Washington: Silfab Solar (Burlington), rooftop and commercial solar panels
Types of solar equipment
Solar panels turn sunlight into electricity. Most are monocrystalline silicon panels made from wafers and cells. All-black panels suit rooftops, bifacial panels collect light on both sides for ground and utility projects, and thin-film panels are used mostly in large solar farms.
Solar trackers move panels to follow the sun, producing 25 to 40% more energy than a fixed mount. Dual-axis trackers suit homes and farms, while single-axis trackers are the standard for utility-scale solar.
Mounts and racking hold panels on roofs, on the ground or on carports.
Inverters, batteries and charge controllers turn panel output into household power and store it for use at night or during outages.
Choosing solar equipment
- Start with your site. Roof size, orientation, shading and open land decide whether rooftop panels, ground mounts or trackers make the most sense.
- Compare panel wattage, efficiency and temperature coefficient, along with hail, snow and wind ratings for your climate.
- Check the warranties. Look for 25-year product and performance warranties from a maker likely to be around to honor them.
- Plan for storage if you want backup power or live off the grid, and size the batteries and inverter to match.
- Ask about domestic content. Commercial and utility projects can earn larger federal tax credits when enough of the equipment is made in the US.
- Get several installer quotes and ask which brands and where they're made.
Reading "Made in USA" on solar equipment
Under FTC rules, an unqualified "Made in USA" claim means all or virtually all of the product is made here. Most solar panels assembled in the US still use cells, wafers or polysilicon from Asia, so "manufactured in the USA" often means only final assembly. Federal domestic-content rules measure the share of a product's manufactured parts made in the US, and a panel or tracker can qualify at well under 100%. Trackers and racking are mostly steel, which is often American, but their motors, drives and electronics may be imported. Ask where the cells and major parts were made, and check the documents for the specific product.
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A company may be based in the USA while making some products elsewhere. Check the manufacturer's own site for where a specific product is made.