Bloom Energy vs FuelCell: The Better AI Data Center Bet
💡 Key Takeaway
Bloom Energy is the proven, profitable leader in AI data center fuel cells, while FuelCell Energy is a high-risk, high-reward turnaround story with a lower entry price.
What Happened: A Tale of Two Fuel Cell Makers
Bloom Energy and FuelCell Energy both compete to power AI data centers, but their recent results couldn't be more different. Bloom Energy reported second-quarter 2026 revenue of $1.065 billion, a 166% jump from last year, with gross margins exceeding 34% and product revenue up 215%. The company's backlog is approaching $20 billion, and management raised full-year revenue guidance to $3.4–$3.8 billion, thanks to deals with Oracle, Brookfield Asset Management, and Nebius Group. Bloom's stock has soared roughly 225% year to date.
FuelCell Energy, on the other hand, reported a 29% revenue decline in its fiscal third quarter, with a gross loss of $24.5 million, largely due to the completion of deliveries in South Korea. Shares fell sharply on the news. However, the company received its first order for data center applications, grew its total backlog to $3.6 billion, and raised $300 million through a stock sale, boosting its cash position to over $737 million.
FuelCell is expanding manufacturing capacity to 500 megawatts by 2028 and expects positive adjusted EBITDA by the end of fiscal 2027. While Bloom is already profitable and generating substantial cash, FuelCell remains a speculative play with significant execution risk.
The contrast highlights the different stages of these two companies: Bloom is a proven, high-growth leader, while FuelCell is a turnaround story with potential but unproven execution.
Why It Matters: Valuation, Risk, and the AI Power Race
The AI boom has created an urgent need for reliable, on-site power, and fuel cell makers like Bloom and FuelCell are key beneficiaries. Bloom's ability to deploy systems in about three months gives it a critical edge, as hyperscalers can't wait years for grid connections. This speed has translated into massive sales and partnerships with major AI players, positioning Bloom as the go-to solution. However, Bloom's stock has already priced in much of this success, trading at a premium that leaves little room for error.
FuelCell's recent struggles have made it a much cheaper entry point, but the company faces steep challenges. Its revenue is declining, gross margins are deeply negative, and profitability is still years away. The first data center order and growing backlog are positive signs, but execution remains uncertain. If FuelCell can deliver on its milestones, the upside could be enormous, but the risk of further delays or dilution is high.
For investors, the choice between Bloom and FuelCell comes down to risk tolerance and time horizon. Bloom offers a strong, profitable business with proven demand but a high valuation. FuelCell offers a potential turnaround at a low price but with significant uncertainty. Both stocks are volatile and sensitive to news about AI data center spending and contract wins.
The broader implication is that the AI power race is far from over, and both companies could benefit as demand grows. But Bloom's current lead and financial strength make it the safer bet, while FuelCell is a speculative play for those willing to take on more risk.
Source: The Motley Fool
Analysis generated by Bobby AI quantitative model, reviewed and edited by our research team. This is not financial advice. Always do your own research before making investment decisions.
Bobby Insight

Bloom Energy is the better buy for most investors, but only if you can stomach the premium valuation and volatility.
Bloom's proven execution, strong financials, and dominant position in the AI data center power market make it a compelling long-term growth story. While the stock is expensive, its massive backlog and partnerships provide visibility into future revenue. FuelCell is too speculative for conservative investors, but could offer high returns if its turnaround succeeds.
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