First Solar is the largest solar panel manufacturer headquartered in the United States and the only large-scale manufacturer of thin-film photovoltaic modules in the Western world. The company designs, manufactures, and sells cadmium telluride (CdTe) thin-film solar panels primarily to utility-scale solar project developers and independent power producers. Unlike the vast majority of the global solar industry — which is dominated by Chinese manufacturers producing silicon-based (crystalline silicon) panels — First Solar uses a fundamentally different technology and a manufacturing footprint concentrated in the United States and, more recently, India.
First Solar was founded in 1999 and pioneered large-scale CdTe thin-film manufacturing. The company is led by CEO Mark Widmar, who has held the role since 2016. Widmar has presided over a dramatic expansion of First Solar's manufacturing capacity and financial profile, driven in large part by the Inflation Reduction Act of 2022, which created production tax credits for domestically manufactured solar modules and advanced manufacturing components — credits that flow almost exclusively to First Solar given its domestic footprint and non-Chinese supply chain.
First Solar's customer base consists almost entirely of large utility-scale solar project developers — companies like NextEra Energy, Lightsource bp, Intersect Power, and a range of independent power producers. The company sells modules under long-term contracts signed years in advance, which gives First Solar exceptional revenue visibility and allows it to plan manufacturing capacity expansions with confidence. As of early 2025, the company's order backlog exceeded 70 gigawatts, representing several years of production at current capacity.
First Solar's CdTe thin-film technology is materially different from the crystalline silicon (c-Si) modules that dominate the global solar market. In CdTe panels, a thin layer of semiconductor material — cadmium telluride — is deposited onto glass substrates in a highly automated, continuous manufacturing process. This manufacturing approach has several advantages: it requires significantly less energy and raw material per watt than silicon manufacturing, enables a highly automated production line with relatively few steps, and produces modules with a smaller carbon footprint per watt of capacity.
First Solar's flagship product is the Series 7 module, which features a large-format glass panel (approximately 2.4m × 1.3m), nameplate capacities in the range of 500–600+ watts per module, and competitive conversion efficiencies in the 19–22% range. The Series 7 is designed specifically for utility-scale ground-mount applications and is optimized for low installation cost and high energy yield in hot, sunny environments — conditions under which CdTe's performance characteristics (lower temperature coefficient versus silicon) are advantageous.
CdTe's supply chain is critical to First Solar's geopolitical positioning. Tellurium — a rare trace element recovered as a byproduct of copper refining — is not sourced from China in meaningful quantities. Cadmium is similarly available from non-Chinese sources. This means First Solar's panels are, in the language of the Inflation Reduction Act, free from "foreign entities of concern" in their supply chains — a distinction that is increasingly valuable as tariff and trade policy creates barriers for Chinese-made solar products in the U.S. market.
First Solar sells CdTe thin-film solar modules to utility-scale developers under long-term contracts, typically signed 1–4 years before delivery. Pricing is fixed at contract signing and adjusted for factors like volume and delivery schedule. This forward contracting model locks in revenue far in advance and is a key reason First Solar carries such a large backlog. The company earns revenue at point of module delivery to customer sites. Per-watt module prices fluctuate with market conditions but have been supported by strong demand and First Solar's differentiated positioning in the post-IRA environment.
The Inflation Reduction Act's Section 45X Advanced Manufacturing Production Credit provides a direct per-watt tax credit for solar modules manufactured in the United States. As of 2024, the credit is approximately $0.17 per watt for thin-film modules (with an additional component for CdTe-specific materials). For First Solar, which manufactured approximately 14–16 GW of modules domestically in FY2024, the 45X credit represents hundreds of millions of dollars per year of after-tax benefit — a significant proportion of reported net income. The credit is scheduled to phase down beginning in 2030 and expire by 2032 unless extended by future legislation, making the political durability of IRA a key long-term risk for First Solar's earnings model.
First Solar previously developed and sold utility-scale solar power plants in addition to manufacturing modules. This systems business — which involved developing solar projects, constructing them with First Solar modules, and selling the completed assets — was substantially wound down by the mid-2010s as the company focused on its core module manufacturing competency. Today, First Solar is essentially a pure-play manufacturer, and most of its revenue comes from module sales rather than project development.
First Solar reported FY2024 revenue of approximately $4.2 billion, up roughly 26% from approximately $3.3 billion in FY2023. Net income was approximately $1.1 billion, representing a net margin of around 26% — an extraordinary level of profitability for a solar manufacturer and a reflection of both the IRA's production tax credits and First Solar's strong pricing environment. Earnings per share reached record levels, and the company generated substantial free cash flow, ending 2024 with a strong net cash position.
The financial performance stands in sharp contrast to the broader solar manufacturing industry, which has been devastated by a glut of low-cost Chinese-manufactured silicon panels that have driven global average selling prices to historic lows. While many c-Si manufacturers — including U.S.-listed companies like Maxeon and Canadian Solar — have seen severe margin compression, First Solar has been largely insulated by its U.S. manufacturing footprint, CdTe technology differentiation, and the IRA's domestic content preferences. The company's margins have expanded even as the global solar industry has experienced a brutal oversupply cycle.
First Solar is investing heavily in manufacturing capacity expansion. The company opened a fourth U.S. factory in Alabama in 2024 and has continued to expand its Ohio facilities, while also building a large new facility in India. Total manufacturing capacity is expected to reach approximately 21 GW by end of 2024 and grow toward 25+ GW by the mid-2020s as expansion projects complete. Capital expenditures have been elevated accordingly, though the strong cash generation from operations has allowed these investments without meaningful balance sheet stress.
First Solar's strategy is focused on three pillars: technology leadership in CdTe thin-film, continued U.S. manufacturing expansion, and capturing the structural advantages created by U.S. trade and industrial policy. On technology, First Solar is investing in its next-generation CdTe platform (Series 8 and beyond), targeting higher conversion efficiencies and lower manufacturing cost per watt to maintain competitiveness as silicon module prices fall. The company has also been investing in research on perovskite/CdTe tandem cells, which theoretically could achieve efficiencies exceeding 30% — well above current commercial limits for any technology.
First Solar has made large bets on the durability of U.S. domestic manufacturing policy. The IRA's 45X credit and the tariff regime on Chinese-manufactured solar products have created an environment in which domestically produced modules can command a meaningful price premium over imported alternatives. First Solar's U.S. factories are positioned to be the primary beneficiaries of these policies for the foreseeable future, given that constructing new domestic thin-film manufacturing capacity at scale requires years and significant capital — a meaningful barrier to competition.
The India factory, located in Tamil Nadu, gives First Solar a cost-competitive manufacturing base for serving markets where U.S. domestic content requirements do not apply and where labor cost matters more. India is also a fast-growing solar market in its own right, and First Solar's presence there positions it to capture demand as the country pursues ambitious renewable energy targets. The India facility is expected to produce approximately 3.3 GW annually when fully ramped.
Policy risk is the dominant near-term concern. First Solar's earnings are materially supported by the IRA's 45X production tax credit, which phases down beginning in 2030 and could be modified or repealed by future legislation. Any significant weakening of trade tariffs on Chinese solar imports could also narrow the price premium that First Solar's modules command in the U.S. market. The company has consistently argued that its technology and supply chain differentiation provide a structural competitive advantage even absent policy support, but the magnitude of the IRA benefit makes this a difficult claim to test in isolation.
Chinese solar manufacturers continue to drive technology improvements and capacity expansions at a pace that is structurally challenging for Western competitors. While Chinese panels face tariffs in the U.S. and are scrutinized in Europe, their cost per watt continues to decline, and the global market remains dominated by Chinese production. If trade barriers weaken or if Chinese manufacturers establish manufacturing in third countries that qualify for favorable treatment under U.S. trade rules, First Solar's relative cost position could deteriorate.
On the upside, First Solar's backlog and the scale of U.S. solar deployment demand provide powerful medium-term visibility. The U.S. Energy Information Administration and private forecasters project continued rapid growth in utility-scale solar installations through the decade, and permitting reforms, grid investment, and the AI data center buildout are adding to demand. First Solar's 70+ GW backlog, combined with ~21 GW of annual manufacturing capacity, implies years of production already committed. For an investor comfortable with the policy risk, First Solar offers a rare combination in the clean energy sector: scale, profitability, and demonstrated technology differentiation.
This profile was compiled from publicly available information including:
First Solar Investor Relations — Earnings releases, SEC filings (10-K, 10-Q), and earnings call transcripts.
First Solar corporate website — Product portfolio, technology documentation, and sustainability reporting.
FY2024 annual report (Form 10-K), Q4 2024 earnings release, and manufacturing capacity disclosures through early 2025.
This profile is for informational purposes only and does not constitute investment advice, a recommendation, or a solicitation to buy or sell any security.