FuelCell Energy's Data Center Deal: A Big Step, But Proceed with Caution

FuelCell Energy (FCEL) announced an agreement with Fit Energy to supply up to 380 megawatts of carbonate fuel cell systems for data centers. The deal is structured in four phases, with only the initial 30 MW phase committed and deliveries expected by the end of this year. The remaining phases are options that Fit Energy can choose to pursue.

This comes as AI data center demand surges, creating a massive need for reliable, on-site power. Fuel cells, which provide continuous baseload electricity using natural gas and can later use lower-carbon fuels, have emerged as a popular solution.

Bloom Energy (BE), a competitor in the fuel cell space, has already seen its stock soar over 1,000% since 2025, driven by robust demand from data center operators. Bloom Energy famously delivered on-site power to Oracle in just 55 days, demonstrating its ability to scale quickly.

FuelCell Energy has been developing molten carbonate fuel cells for decades but has struggled with commercial success. Sales have been uneven, and profitability remains elusive due to the capital-intensive nature of manufacturing.

The company has lost nearly $225 million over the past 12 months and has significantly diluted shareholders, with outstanding shares rising from 14.8 million to 63.5 million over three years. It recently announced another $225 million equity raise to expand manufacturing capacity.

This deal is a critical validation for FuelCell Energy's technology and could serve as a blueprint for future contracts. If successful, it could open the door to more data center deals, potentially transforming the company's financial outlook.

However, the deal's structure—with only 30 MW committed—means the company must prove it can deliver before the full 380 MW materializes. This mirrors Bloom Energy's path, but Bloom has already demonstrated execution capability.

FuelCell's financial health is a major concern. With significant losses and ongoing dilution, the company is burning cash rapidly. The $225 million equity raise will further dilute existing shareholders, and there's no guarantee of profitability in the near term.

For investors, the key question is whether FuelCell can replicate Bloom Energy's success. If it can, the stock could be a huge winner. But if it stumbles, the risks are substantial.

Competitively, Bloom Energy remains the leader in the fuel cell space for data centers, with a proven track record. FuelCell is playing catch-up, and its success hinges on execution.