Fluence Energy's $5.6B Backlog Signals the Scale of AI Power Demand

Fluence Energy's $5.6B Backlog Signals the Scale of AI Power Demand Shares surged 98% in a week on hyperscaler deals while Babcock & Wilcox's gas-fired power pipeline exceeds $12 billion, as capital races into AI-linked energy. Fluence Energy shares closed at $24.16 on May 8, up 98.2% in a single week. The catalyst was specific: master supply agreements with two hyperscalers and a record $5.6 billion backlog for grid-scale energy storage. The company reported Q1 adjusted EBITDA of $2.0 million, the fourth consecutive positive quarter, with non-GAAP gross margin expanding to 52%.^2,1 Management reaffirmed its 2026 revenue target of $3.2 billion to $3.6 billion, with 85% of the midpoint already contracted. PowerTrack manages 37.5 GW of solar assets under management with annual recurring revenue guided to $65-70 million by year end. The backlog gives visibility. The execution determines whether it converts.^2,1 Babcock & Wilcox is building the gas-fired side of the same demand. The company signed a $2.4 billion design-build contract with Base Electron for 1.2 GW of natural gas-fired power, driving its backlog up 470% to $2.8 billion. Shares were up 129.34% year to date. Management guided 2026 EBITDA to $70-85 million, roughly 80% year-on-year growth, excluding data centre upside. Base Electron is evaluating another 1.2 GW option. The global pipeline exceeds $12 billion.² The risk with Babcock & Wilcox is the balance sheet. Stockholders' equity sits at negative $131.5 million with a 6.50% note refinancing due in 2026. Growth on leverage in a capital-intensive sector means the margin for error is thin.² Fluence's secondary offering of 20 million Class A shares at around $21.00 triggered price volatility and raised concerns about institutional exits. The stock remains down 39% year to date despite the weekly doubling. Net losses persist. The bet is on conversion of the backlog, not current profitability.¹ The AI power demand driving both companies is quantified by the IEA at up to 4% of global electricity use by 2030. Data centres need firm, dispatchable power at scale. Storage provides flexibility for hours. Gas provides it continuously. Nuclear provides it for decades. Each technology competes for the same hyperscaler procurement dollar.² What to watch is Fluence's next quarterly report for backlog conversion metrics, and whether Babcock & Wilcox refinances its 2026 note without dilutive terms. The 98% and 129% rallies respectively tell you capital has bet. The balance sheets tell you the bet carries risk.^2,2