Stock Analysis · First Solar Inc (FSLR)

Stock Analysis · First Solar Inc (FSLR)

Overview

First Solar is an American solar manufacturer focused on thin-film photovoltaic modules and utility-scale solar power projects. In simple terms, it makes large solar panels used mainly in big solar farms rather than rooftop systems. This matters because its business is tied more to power plant developers, utilities, and large commercial buyers than to households.

The company’s model is more specialized than many solar peers. First Solar designs and manufactures cadmium telluride, or CdTe, solar modules, a technology that differs from the more common crystalline silicon panels sold by many Asian manufacturers. It also provides related services such as project development support, engineering, procurement, and operations and maintenance in selected cases. A second distinctive feature is geography: First Solar manufactures a meaningful share of its products in the United States, which has become strategically important as governments try to build domestic clean-energy supply chains.

Revenue is overwhelmingly driven by module sales and, to a much smaller extent, project-related and service activities. Based on recent company reporting, the mix can be summarized as follows:

  • Module sales: about 90% to 95% — sale of solar modules to utilities, independent power producers, and large energy developers.
  • Systems, project development, and other services: about 5% to 10% — includes project-related activities, engineering support, operations and maintenance, and other smaller revenue streams.

Another important point for long-term analysis is profitability. After a weak period in 2022, the business has scaled up sharply, with revenue rising from roughly $2.6 billion in 2022 to about $5.2 billion in 2025, while gross profit and operating income expanded much faster. That shows a company benefiting not only from higher sales but also from better economics per unit.

The financial flow highlights a strong turnaround since 2022. Revenue has expanded materially, but the bigger change is margin improvement: gross profit, operating income, and net income have grown far faster than sales, suggesting stronger pricing, manufacturing efficiency, and support from policy-linked economics.

Key Figures

MetricValueSector
DateSep 12, 2026
Context
SectorTechnology
IndustrySolar
Market Cap $22.26B
Beta 1.73
Value
(Cheapness)
P/E Ratio 12.5229.51
FCF Yield 6.74%4.25%
EBIT / EV 9.18%2.85%
PEG 0.38
Growth
(Business expansion)
Revenue Growth -3.70%15.40%
RPS Growth (5Y CAGR) 15.43%8.56%
EPS Growth (5Y CAGR) N/A-11.88%
Margin Growth (5Y Trend) 11.11%0.46%
FCF Growth (5Y CAGR) N/A9.80%
Quality
(Business durability)
ROIC (Latest) 17.63%9.44%
ROIC (5Y Median) 12.71%8.30%
Net Debt / EBIT (Latest) -0.800.54
Net Debt / EBIT (5Y Median) -1.460.44
Operating Margin (Latest) 34.66%9.58%
Operating Margin (5Y Median) 27.25%8.25%
Debt to Equity (Latest) 1.88%33.33%
Profit Margin (Latest) 32.47%7.14%
Free Cash Flow (Latest) $1.50B
Momentum
(Price trend)
3Y Return +15.52%+45.48%
12M Return (excl. last month) +22.76%+23.48%
6M Return +5.81%+20.93%
Price vs. 200-Day MA -9.02%+7.43%
Better than sector median
Slightly worse than sector median
More than 20% worse than sector median

First Solar stands out on business quality and balance sheet strength. Profitability metrics are well above the sector median, with operating and net margins far stronger than most peers, and leverage is unusually low for a manufacturing business. Growth looks solid over a multiyear view even though the latest year-over-year revenue reading is softer. Valuation metrics also look less demanding than much of the sector, while share-price momentum has been more mixed, reflecting how volatile sentiment around solar names can be.

Growth

First Solar operates in a sector with a powerful long-term tailwind. Utility-scale solar remains one of the cheapest sources of new electricity generation in many regions, and electricity demand is rising as data centers, electric vehicles, industrial electrification, and grid modernization all expand. In the United States, the policy environment is especially important: tax credits and domestic manufacturing incentives have made local solar production more attractive, and First Solar is one of the clearest public-market beneficiaries of that trend.

The company’s strategy is coherent for long-term growth. It is expanding manufacturing capacity in the United States and abroad, while keeping its focus on utility-scale customers where it already has deep relationships. Its technology is not just a copy of standard silicon panels, which gives it some insulation from direct commodity-style competition. Thin-film modules also have performance advantages in hot and humid climates, which can matter for large projects in regions where operating conditions are tough.

Revenue growth has not been smooth from quarter to quarter, which is normal in utility-scale solar because project timing, delivery schedules, and customer acceptance can move sales between reporting periods. The broader pattern since 2023 has still been strong, and the company’s five-year revenue-per-share growth remains well above the sector median even after the recent softer quarter.

Cash generation has improved dramatically. Free cash flow was negative during a heavy investment phase, then turned strongly positive as new capacity started contributing and profitability expanded. That change matters because it suggests recent spending is beginning to convert into real cash rather than staying locked inside factories and inventory.

A major catalyst is the company’s large contracted backlog and manufacturing expansion tied to domestic content demand in the United States. Public company disclosures have also emphasized continued capacity additions and strong interest from customers seeking non-Chinese supply options. For a business serving multi-year energy infrastructure projects, that kind of visibility is more meaningful than a single quarter’s shipment number.

Risks

This article is for informational purposes only and does not constitute financial advice. Some content is AI-generated. See Disclaimer