First Solar Inc.
First Solar, Inc. (FSLR)
Overview
First Solar, Inc. is an American manufacturer of solar photovoltaic (PV) modules and a leading provider of utility-scale solar power systems, headquartered in Phoenix, Arizona (with major manufacturing roots in Perrysburg, Ohio). Founded in 1990 as Solar Cells, Inc. and relaunched as First Solar in 1999, the company is the largest U.S.-headquartered solar panel manufacturer and one of the few global producers using thin-film cadmium telluride (CdTe) semiconductor technology rather than the crystalline silicon technology that dominates the rest of the industry. First Solar is a mid-large-cap industrial/clean-energy company with trailing-twelve-month revenue of roughly $5.4 billion (up nearly 24% year-over-year), net income of around $1.7-1.75 billion, a market capitalization near $22 billion, and approximately 7,900 employees. Its business is squarely focused on selling solar modules to utility-scale developers, independent power producers, utilities, and large corporate energy buyers rather than the residential rooftop market.
What They Do & How They Make Money
First Solar designs, manufactures, and sells solar modules that convert sunlight into electricity, earning revenue primarily by selling these modules under long-term supply contracts to solar project developers, independent power producers, utilities, and commercial/industrial energy buyers building utility-scale solar farms. Unlike most of the solar industry, which uses crystalline silicon (c-Si) wafer-based cells, First Solar manufactures thin-film modules using a proprietary cadmium telluride (CdTe) semiconductor process that uses roughly 98% less semiconductor material than traditional silicon panels and can be manufactured start-to-finish (glass to finished panel) in only a few hours through a highly automated, vertically integrated process. This technology gives First Solar a distinctive combination of a lower manufacturing carbon/water footprint, faster energy payback time, and — critically — better performance in hot, high-irradiance conditions and lower degradation over time than many silicon panels, which makes its modules particularly well-suited to the large, hot-climate utility-scale solar farms that are its core market. First Solar sells its production essentially sold out years in advance through long-term contracts, giving it unusual revenue visibility for a manufacturer, and its U.S.-based manufacturing footprint has become an increasingly important commercial advantage as U.S. policy (tariffs on Asian-made panels and manufacturing tax credits) has favored domestically produced solar equipment.
Business Segments
First Solar is primarily a single-product-line manufacturer — solar modules — but organizes and discloses its business by geography/manufacturing region rather than by diversified product segments, reflecting its global production footprint:
- United States manufacturing — First Solar's largest and fastest-growing production base, with facilities in Ohio (Perrysburg and additional sites), Alabama (Trinity), and Louisiana (New Iberia), supplemented by a new finishing facility planned in South Carolina. U.S. domestic capacity has scaled rapidly (reported at roughly 14 GW annually as of early 2026, with capacity expected to exceed 17 GW once the South Carolina facility comes online), driven substantially by demand for U.S.-made modules eligible for domestic-content incentives and unaffected by tariffs on imported panels.
- International manufacturing (Malaysia, Vietnam, India) — First Solar's original offshore manufacturing base, built to serve global demand and to diversify supply chain and trade-policy risk; these facilities continue to supply both international customers and, where applicable, U.S. demand.
- Module sales / project development support — First Solar's commercial organization, which manages long-term supply agreements with utility-scale developers and, at times, limited early-stage project development activities to support pipeline demand for its modules, though First Solar's core identity remains that of a module manufacturer rather than a project developer/operator like some vertically integrated peers.
Because First Solar's product line is not diversified, investors track metrics like megawatts (MW/GW) of modules sold, average selling price per watt, bookings/backlog (the forward contracted sales pipeline), and manufacturing capacity by region rather than segment-level revenue splits.
Competitors
First Solar's competitive landscape is dominated by large crystalline-silicon module manufacturers, most of them based in China or with substantial Chinese manufacturing ties:
- Chinese/Asian crystalline-silicon manufacturers — JinkoSolar, LONGi Green Energy, Trina Solar, JA Solar, and Canadian Solar are the world's largest solar module producers by volume and represent First Solar's primary global competition, generally competing on scale and cost using conventional silicon-wafer technology.
- Other thin-film/specialty manufacturers — a small number of niche players compete in thin-film or specialty PV technology, though First Solar is the only major-scale CdTe thin-film producer in the industry, giving it a relatively unique technological position.
- Emerging/adjacent technologies — longer-term, next-generation PV technologies (perovskite tandem cells, bifacial modules from silicon manufacturers) represent a potential future competitive and technological risk if they achieve cost/efficiency breakthroughs.
Beyond direct module competition, First Solar also indirectly competes with other forms of utility-scale power generation (wind, natural gas) for capital allocation within utility and developer generation portfolios, though this is a secondary competitive dynamic compared to module-to-module competition within solar.
Competitive Position
First Solar's competitive moat rests on a combination of proprietary technology, U.S. manufacturing scale, and a favorable trade/policy position rather than being the low-cost producer by raw materials cost alone. Its CdTe thin-film technology is protected by decades of R&D investment (over $2 billion cumulatively) and manufacturing know-how that has proven difficult for competitors to replicate at scale, and its modules' strong performance in high-temperature, high-irradiance utility-scale installations differentiates it technically from silicon-based competitors. Perhaps most importantly in the current environment, First Solar is the largest U.S.-headquartered solar manufacturer with the most significant domestic manufacturing base, which has become a substantial commercial advantage as U.S. trade policy — including antidumping/countervailing duty tariffs on solar panels and components from Southeast Asia and China, and manufacturing tax credits under U.S. clean energy legislation — has increasingly favored U.S.-made modules. This has allowed First Solar to sell out production capacity years in advance under long-term contracts, providing revenue visibility that few industrial manufacturers enjoy. The company has also differentiated itself on sustainability and supply-chain integrity credentials (including being recognized as free of ties to forced labor in its supply chain, a growing concern for solar buyers given scrutiny of the broader industry's polysilicon supply chains), which matters increasingly to utility and corporate buyers.
Key risks and threats include continued intense price competition from much larger Chinese silicon-module manufacturers, whose massive manufacturing scale and government support have historically driven module prices down sharply and pressured margins industry-wide; a shift or rollback in U.S. trade and clean-energy policy (tariffs, manufacturing tax credits) could quickly erode First Solar's current domestic-manufacturing advantage. The company also faces execution risk in rapidly scaling new U.S. manufacturing capacity on time and on budget, exposure to raw material (notably cadmium telluride and other specialty materials) cost and availability, and the broader cyclicality of utility-scale solar demand, which depends on interest rates, project financing conditions, and the pace of the energy transition. Longer term, emerging PV technologies (such as perovskite-silicon tandem cells) could eventually challenge First Solar's efficiency and cost advantages if commercialized at scale by competitors.