Plug Power Rides Twin Tailwinds: Hydrogen Project Milestone and Data Center Demand Drive Bull Case

Plug Power's stock gains 72% year-to-date as Q1 margins improve, a major UK green hydrogen project reaches FID, and AI data center demand opens new growth avenues.

Plug Power’s stock has been on a roller coaster that masks a more profound shift in its investment narrative. The hydrogen fuel-cell company ended last week almost flat after a turbulent session, but the underlying story has gained two powerful new dimensions — a major green hydrogen project in England finally reached the investment-decision stage, and an unexpected tailwind from the artificial-intelligence sector has reframed the entire addressable market.

Shares traded at €3.26 on Friday, a level that still marks a 72% gain since the start of the year. The annualized volatility above 99% underscores just how skittish the market remains, yet the broader trajectory has been unmistakably upward.

Q1 Results Show Margins Are Healing

The foundation for the recent advance was laid on May 14, when Plug Power reported first-quarter results that beat analyst expectations. Revenue climbed 22% to $163.5 million, driven by a 22% increase in hydrogen fuel sales. The headline improvement, however, was the swing in GAAP gross margin, which narrowed from a punishing negative 55% a year ago to negative 13% — a 42-percentage-point leap toward breakeven.

Adjusted losses per share came in at $0.08, beating the consensus estimate of a $0.10 loss. The company ended the period with $802 million in cash and expects to generate roughly $275 million more from monetizing hydrogen projects, including a deal with Stream Data Centers. Management is sticking to its road map: positive adjusted EBITDAS in the fourth quarter of 2026, positive operating income by the end of 2027, and full profitability by year-end 2028.

UBS Joins the Bull Camp

Fresh analyst support arrived from UBS, where analyst Manav Gupta raised the price target aggressively to $4.00 from $1.75, while keeping a “Neutral” rating. In his research note, he pointed to the improving margin trajectory from the first quarter as the key reason for the upgrade. The old target implied little upside, but the new one suggests around 10-15% upside from current levels, depending on the euro-dollar conversion. The stock now trades roughly 57% above its 200-day moving average, a sign of strong momentum.

Barrow Green Hydrogen Gets the Go-Ahead

On May 20, the final investment decision was signed for the Barrow Green Hydrogen project in Cumbria, England. Plug Power will supply six of its GenEco PEM electrolyzers, each rated at 5 megawatts, for a total capacity of 30 MW. The facility is expected to produce roughly 100 gigawatt-hours of green hydrogen annually.

The offtaker is Kimberly-Clark, which plans to use the hydrogen at its local manufacturing site to cut natural gas consumption by up to 50% and reduce CO? emissions by 18,300 tons per year. The project is backed by the Green Hydrogen Energy Company, a joint venture between Schroders Greencoat and Carlton Power, with support from UK government subsidies and a long-term renewable power purchase agreement.

AI Data Centers Open a New Front

A separate catalyst emerged from an unlikely source: a rival. Bloom Energy struck a deal to supply fuel cells for a 328-megawatt backup-power project at an AI data center owned by Nebius, an infrastructure provider for artificial intelligence. The arrangement highlights a growing demand for clean, reliable, off-grid electricity to meet the voracious energy appetite of server farms. Plug Power’s own GenSure fuel cells are designed precisely for this application — scalable, emission-free backup power that can bypass an overloaded grid.

The market took notice. After a weak start to the week, Plug Power’s shares spiked more than 14% intraday on the news. Although the stock gave back some of those gains, the narrative has shifted noticeably: hydrogen is no longer just a transportation fuel or an industrial input — it is becoming a cornerstone of the AI infrastructure buildout.

Technical Picture and Outlook

Chart watchers see a stock that has pulled back from overbought territory. The relative strength index now sits at around 26, signaling an oversold condition that could attract dip buyers. The 50-day moving average at €2.47 provides a solid floor, while the 52-week high of €3.51 represents the next hurdle to clear.

Most analysts maintain a “Hold” rating on Plug Power, a stance that reflects the genuine operational progress against the still-long path to sustainable profitability. The next major test will be whether the company can sustain the margin improvement seen in the first quarter and convert the data-center opportunity into concrete orders. If it does, that €3.51 resistance level may not hold for long.