2G Energy's US Megadeal Won't Move the Needle Until 2028, and the Street Can't Agree on What That's Worth

2G Energy stock fell as Parmantier & Cie. kept a sell rating on the Energy Vault order's delayed revenue, while Berenberg and First Berlin see long-term upside.

A 275-megawatt order from Energy Vault Holdings Inc. ought to be unambiguously good news for 2G Energy. Instead, it has become the fault line running through analyst coverage of the combined heat and power specialist, just as the company prepares to hand investors two fresh data points within 72 hours.

The stock closed Friday at EUR 58.95, down 6.3% on the session, after Parmantier & Cie. reaffirmed its sell rating and a EUR 39.00 price target with a six-month horizon. The decline extended into Monday, with the shares shedding another 2.2% to EUR 57.35. Even after that retreat, 2G Energy remains up 63% year to date — a run that has baked in considerable optimism about what the American contract might eventually deliver.

What the SEC Filings Actually Show

Announced last Wednesday, the Energy Vault deal covers containerized power generation systems destined for AI data centres and hyperscaler infrastructure in the United States. The headline figure is eye-catching. The timing is not: deliveries are contractually scheduled to begin only in the fourth quarter of 2027 and to run through the third quarter of 2028. For the current 2026 financial year, the order contributes neither revenue nor cash flow.

Parmantier & Cie. dug into SEC filings and found that the production slots had been reserved on a non-binding basis, against reservation fees of USD 17.0 million. Binding terms covering payment conditions, fixed down payments or compensation in the event of cancellation have yet to be disclosed. That gap is precisely what the bear case rests on — whether the order backlog can credibly underpin future earnings, or whether it is a placeholder that flatters the pipeline without locking in cash.

Berenberg and First Berlin Take the Other Side

Not everyone is troubled by the wait. Berenberg initiated coverage on 14 September with a buy rating and a EUR 91.00 target, emphasizing the long-term growth potential of the US data-centre market. First Berlin Equity Research followed on 18 September, upgrading the stock from "Add" to "Buy," then raised its target from EUR 76.00 to EUR 83.00 last Thursday.

The bull argument is strategic rather than near-term. Embedding 2G Energy's systems into standardized infrastructure solutions for data centres opens a door to deep-pocketed North American technology customers. Convert the 275 megawatts into profitable revenue on schedule, and the business is underpinned for years. That, supporters argue, is the catalyst that could reignite the share price after the current consolidation.

The Core Business Has to Carry the Load

Between now and the first US deliveries at the end of 2027, 2G Energy must lean on its traditional core markets. That makes the preliminary first-half 2026 figures, due Tuesday, 29 September, the immediate test. A convincing operating margin would buy investors the patience to wait for the deferred American revenue. A soft result, against a valuation that has already priced in so much, invites renewed selling pressure.

Two days later, on 1 October, the company holds its first official Capital Markets Day in Heek. Management's willingness — or reluctance — to fill in the payment and cancellation terms of the Energy Vault contract will shape how the market reads the entire order book.

A Street Divided, and a Stock at a Crossroads

The spread between the highest and lowest targets now runs from EUR 39.00 to EUR 91.00, an unusually wide band that reflects genuine disagreement about how to value revenue arriving two years out. Parmantier & Cie. frames the delayed cash inflows as the central risk; Berenberg and First Berlin treat the same delay as the price of entry into a lucrative new market.

For now, the near-term direction hinges on whether the interim numbers confirm a solid underlying business and whether Thursday's strategy day delivers the contractual detail skeptics have been asking for. Hold the current valuation with a robust first half, and the positive scenario stays intact. Lose confidence in near-term earnings power, and a meaningful correction becomes the more likely path. The next three trading days should settle which way it breaks.