Bloom Energy

Bloom Energy's third-quarter revenue rose 138% year on year to $1.24 billion. The company raised revenue guidance to a midpoint of $4.5 billion, while non-GAAP gross margin guidance remained at 34% due to scaling costs. Operating cash flow was negative due to large increases in working capital.

Why it matters: How quickly Bloom can deliver on-site power generation remains an illustrious differentiator as its earnings continue to grow. Delivering in as little as two months, as it did for Oracle a year ago, is invaluable compared with legacy grid systems that take years to deliver. However, we do think this speed-of-delivery benefit will diminish as grid-connection time constraints reduce for certain gas turbine providers. The timing of this reduction is unclear and depends largely on the manufacturing capacity of turbine manufacturers. The negative operating cash flow reported in the third quarter is notable, as it's largely driven by an over $400 million increase in contract assets. Management did not provide sufficient clarity on the timing of collections. We see working capital management as something to watch as Bloom scales.

The bottom line: We are placing shares under review as we reassess our long-term thesis. Revenue guidance and backlog growth are promising, but we see share prices as heavily weighted on optimistic expectations. We expect to raise our fair value estimate materially. We maintain our Extreme Uncertainty Rating as questions regarding Bloom's supply chain, backlog, and working capital management remain unanswered. What hurts Bloom here is management's lack of clarity regarding market concerns. We expect to remain at the lower end of valuations as we believe this stock is, at worst, priced with extreme optimism and, at best, priced to perfection.

We lift our fair value estimate for Bloom Energy to $102 from $97. Most of the change was due to our long-term view on top-line growth, though higher guidance and stationary margin expectations drove the change.

Bloom’s largest profit driver is revenue growth and gross margins for its core power generation segment (sale of Energy Servers). We forecast a revenue compound annual growth rate of approximately 67% over the next three years on a higher shipment forecast. We expect gross margins to rise to over 40% by the end of our forecast, driven by fixed-cost leverage on higher shipments as well as improved service margins.

Operating leverage from a higher revenue base, given Bloom’s operating expense profile, is another material driver of our valuation. We expect non-GAAP operating expenses to decline as a percentage of revenue from 21% in 2024 to under 15% by 2026 as Bloom scales faster than we initially expected.

We don't believe Bloom Energy possesses an economic moat. Bloom has a relatively long record in solid oxide fuel cells, but we see a plethora of viable solutions from competing technologies.

Bloom’s identity is as an innovative products company. Its primary product—the Bloom Energy Server—provides 24/7 baseload power for commercial and industrial customers using its SOFC technology. The company commercialized its first-generation Energy Server in 2008, creating a relatively long record compared with fuel cell peers. However, commercial shipments continue to be quite limited compared with the broader stationary power generation industry. Since 2008, Bloom has shipped 1.5 gigawatts of Energy Servers, including approximately 500 megawatts in 2025. This volume positions Bloom as a leading SOFC company, but it pales in comparison with broader stationary power. As such, we believe Bloom has an advantage today in SOFC technology but not in the broader stationary power market, where we see competition from linear generators (baseload applications) and polymer electrolyte membrane fuel cells (backup applications).

Bloom’s solution exhibits an element of switching costs for customers, but not enough to warrant a moat. Customers typically purchase their systems via a long-term contract through a third party, with contracts as long as 15 years. This provides Bloom with upgrade potential as new product generations are introduced with repeatable service revenue (Bloom observes a 100% attachment rate of service contracts). Despite high service contract attachment, service profitability has been limited in the past (2025 service gross margin was 10% versus 35% product gross margin).

An additional consideration in our moat rating is Bloom's concentrated end markets. Energy Server sales have essentially been derived from four or five US states and South Korea to date. While rising demand from data centers is poised to diversify demand sources, it also brings about concentration risk, given the size of data center opportunities relative to Bloom's scale.

Bloom is well positioned to meet the time to power needs of data center customers.

Bloom has made strides in extending the life of its fuel cells, which should improve its service margins in coming years.

Bloom's fuel cell technology benefits from long-term cost reductions, which should enable greater cost-competitiveness with natural gas turbines.

Bloom's long-term sales trajectory is highly dependent on data center customers.

The company has a limited profitability record and faces execution risk with scaling its manufacturing.

Bloom's fuel cells remain more expensive than natural gas turbines.