First Solar vs Constellation Energy
Side-by-side comparison of AI visibility scores, market position, and capabilities
Tempe AZ US solar module leader (NASDAQ: FSLR) at $4.2B 2024 revenue (+27%) with 23.5 GW total capacity; $330M South Carolina factory adding 3.7 GW and EPEAT Climate+ certified competing with Qcells for IRA-compliant domestic utility solar.
About
First Solar, Inc. is a Tempe, Arizona-based solar module manufacturer — publicly traded on NASDAQ (NASDAQ: FSLR) as an S&P 500 component — operating as the largest US solar manufacturer and the only vertically integrated thin-film cadmium telluride (CdTe) solar module company at commercial scale, with 23.5 GW of total nameplate manufacturing capacity across facilities in the United States (Ohio, Alabama, Louisiana), India, Vietnam, and Malaysia as of 2025. In fiscal year 2024, First Solar reported $4.2 billion in net sales (a 27% increase from $3.3 billion in 2023) with a record 14.1 GW of modules sold. In 2025, First Solar committed $330 million to a new South Carolina factory in Gaffney (3.7 GW capacity, ~600 jobs, operations H2 2026) that would bring total US capacity to 17.7 GW. First Solar's CdTe modules have achieved commercial production efficiencies exceeding 20%, and the company holds first-mover status with the EPEAT Climate+ designation for ultra-low carbon solar technology. CEO Mark Widmar leads the company. Founded 1990 in Perrysburg, Ohio.
Baltimore largest US nuclear operator (NASDAQ: CEG) at $23.6B FY2024 revenue; 21 reactors, Three Mile Island restarted Sept 2024 for Microsoft AI data center, 24/7 carbon-free power competing with Vistra and NRG.
About
Constellation Energy Corporation is a Baltimore, Maryland-based clean energy company — publicly traded on NASDAQ (NASDAQ: CEG) as an S&P 500 Utilities component with a market capitalization of approximately $70 billion — operating the United States' largest fleet of carbon-free nuclear power plants with 21 nuclear reactors at 13 generating stations across Illinois, Pennsylvania, Maryland, New Jersey, and New York, through approximately 13,000 employees generating approximately 10% of all clean electricity in the United States. In fiscal year 2024, Constellation Energy reported revenue of $23.6 billion. Constellation was separated from Exelon Corporation in February 2022, when Exelon spun off its power generation business as an independent company while retaining the regulated utility subsidiaries (ComEd, PECO, BGE, Pepco, Delmarva, Atlantic City Electric). CEO Joe Dominguez leads Constellation's strategy of capitalizing on the AI data center electricity demand surge — nuclear power's unique combination of 24/7 carbon-free reliability makes Constellation the preferred clean power supplier for tech companies' 24/7 carbon-free electricity commitments that intermittent wind and solar cannot fulfill. Constellation's landmark achievement was the September 2024 restart of Three Mile Island Unit 1 (renamed Crane Clean Energy Center) — the reactor that operated safely for decades before closing in 2019 due to economic competition from cheap natural gas — under a 20-year power purchase agreement with Microsoft to supply the data center campus supporting Microsoft's Azure AI infrastructure in Pennsylvania.
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