10-KPeriod: FY2025

FIRST SOLAR, INC. Annual Report, Year Ended Dec 31, 2025

Filed February 24, 2026For Securities:FSLR

Summary

First Solar, Inc. (FSLR) reported strong net sales growth of 24% in 2025, reaching $5.2 billion, driven by increased module volume. Despite this top-line growth, the company experienced a decrease in gross profit margin to 40.6% from 44.2% in the prior year. This margin compression was attributed to higher costs associated with a greater proportion of U.S.-produced modules, increased warehousing and logistics expenses, and additional duties and tariffs. These factors were partially offset by higher advanced manufacturing production credits under Section 45X of the IRC. The company continues to expand its manufacturing capacity, notably with the construction of its sixth U.S. facility expected to commence operations in the second half of 2026. First Solar's strategic focus remains on its differentiated thin-film technology, which offers advantages in certain climates and avoids reliance on Chinese crystalline silicon supply chains. The company is also actively managing its product quality, setting aside a $50 million liability for identified manufacturing issues affecting certain Series 7 modules that may cause premature power loss. Despite these challenges, First Solar's robust R&D investments and commitment to responsible solar practices position it to capitalize on the growing demand for renewable energy, particularly in the United States.

Key Highlights

  • 1First Solar reported a 24% increase in net sales to $5.2 billion for the year ended December 31, 2025, primarily due to higher module volumes sold.
  • 2Gross profit margin decreased to 40.6% in 2025 from 44.2% in 2024, driven by increased costs (U.S. production mix, warehousing, logistics, tariffs) partially offset by Section 45X tax credits.
  • 3The company is expanding its U.S. manufacturing capacity with a sixth facility set to begin operations in the second half of 2026.
  • 4First Solar recorded a $50 million warranty liability for identified manufacturing issues in Series 7 modules that may lead to premature power loss.
  • 5Net cash provided by operating activities significantly increased to $2.1 billion in 2025, up from $1.2 billion in 2024, bolstered by tax credit sales and higher module receipts.
  • 6The company continues to invest heavily in R&D, with R&D expenses increasing by 22% to $233.4 million in 2025.

Frequently Asked Questions

The primary driver for First Solar's financial performance in 2025 was a significant increase in net sales, up 24% to $5.2 billion, driven by a higher volume of modules sold. However, gross profit margin saw a decline due to increased manufacturing and logistical costs, which were partially mitigated by advanced manufacturing production credits.

First Solar has identified manufacturing issues in certain Series 7 modules that could lead to premature power loss. The company has taken corrective actions and has recorded a specific warranty liability of $50 million as its best estimate of expected future losses related to these issues. The ultimate loss could range between $35 million and $75 million.

First Solar is actively expanding its manufacturing capacity, particularly in the United States, with a sixth U.S. facility planned to commence operations in the second half of 2026. The company's global footprint also includes facilities in India, Malaysia, and Vietnam, though it has reduced production at some international sites due to market conditions.

Government incentives, particularly the IRA and its Section 45X advanced manufacturing production credits, are significantly benefiting First Solar. These credits are reducing the company's cost of sales and are expected to provide a substantial source of funding. The IRA has also driven increased demand for domestically manufactured modules.