Nel C30 electrolyser by NEL ASA - compact PEM unit for small hydrogen sites

The Nel C30 electrolyser stands in a white-painted container, humming softly as cooling fans push warm air into the yard of a small bus depot. An engineer in a high-vis vest, working under operations manager Kari Johansen, runs a gloved hand over the control panel and watches pressure values flicker on the screen.

Compact PEM unit for smaller loads

Nel C30 is a compact proton exchange membrane electrolyser designed to deliver roughly 30 normal cubic meters of hydrogen per hour, aimed at modest industrial users and smaller mobility hubs. It forms part of Nel's standardized containerized offerings in the so-called C-series portfolio for decentralized production. The unit is sized for customers that do not need megawatt-scale systems but still want on-site green hydrogen from water and renewable electricity.

According to Nel product materials, the C-series builds on PEM technology that can ramp output quickly in response to variable power input, a fit for solar and wind-heavy grids. The C30 module typically integrates water treatment, power electronics and gas conditioning equipment in a single enclosure, reducing the need for customers to engineer each subsystem from scratch. Kari Johansen and her colleagues look for such packaged solutions because depot space is tight and local staff cannot maintain large, custom-built plants.

Technical frame and use cases

Nel describes the C-series as modular building blocks that can be combined for higher output, with the C30 representing one of the smaller units typically used where demand peaks at tens, not hundreds, of kilograms per day. In practice, that can mean supply for a handful of fuel cell buses, a fleet of forklifts in a logistics warehouse or a pilot line at a chemical plant. The containerized design allows operators to place the unit outdoors near the point of consumption, shortening gas piping runs.

From a tactile standpoint, the control interface on the C30 resembles that of many industrial power systems, with physical emergency-stop buttons and a touch screen for trending data. Johansen's team watches cell stack temperatures and hydrogen purity parameters to stay within specification, as PEM stacks rely on careful thermal management to maintain efficiency. Nel's documentation stresses the importance of compatible deionized water quality and regular filter checks to avoid performance drift.

Where the C30 sits in Nel's portfolio

Nel's product universe spans both renewable hydrogen production equipment and fueling solutions, with alkaline electrolyser series like A-series and more recently large-scale PEM systems such as the M-series and F-series. The C-series PEM line, including the C30 unit, fills the niche for compact, containerized installations that bridge the gap between laboratory-scale units and the multi-megawatt plants now being discussed in European tenders. Customers that start with a single C30 module can later expand their sites by adding more containers onto the existing footprint.

On the fueling side, Nel offers branded hydrogen refueling stations that interface with upstream production units, including PEM and alkaline electrolysers. When Johansen's depot orders hydrogen equipment, the procurement team looks not only at gas output but at the ability to integrate with compressors, storage and dispensers in one project timeline. Nel markets its containerized electrolysers as plug-in components that can connect to grid power or dedicated renewable plants, providing flexibility for different national regulations. External observers often see this whole chain when they assess Nel ASA stock as a play on the wider green hydrogen infrastructure build-out.

Pricing, availability and practical deployment

Nel does not publish off-the-shelf list prices for the C30 electrolyser on its website, a common approach in heavy industrial equipment. Instead, quotes depend on local engineering, freight, grid connection and warranty options. In European pilot projects, public filings often show that compact electrolyser containers fall into the low-single-digit million euro range per installed unit, once balance-of-plant is included. Smaller, standardized systems like the C30 can therefore be positioned as stepping stones for municipalities or industrial clusters with limited initial budgets.

In terms of availability, Nel highlights that its standardized containerized PEM electrolysers are intended for global deployment, with the company serving customers in Europe, North America and Asia. Lead times reflect both factory capacity and external factors such as permitting and grid connection work. Johansen's depot had to coordinate local electrical contractors and safety regulators for several months before a C-series container could be craned into place, illustrating that equipment procurement is only part of the overall timeline. Once installed, the unit's quiet thrum becomes just another layer of sound behind idling buses and clicking workshop tools.

How it plays into the equity story

For investors following Nel ASA stock on the Oslo Stock Exchange, compact products like the C30 electrolyser do not dominate headlines in the same way that multi-hundred-megawatt projects do. They nevertheless contribute to recurring revenue and diversify the customer base, especially in mobility depots and smaller industrial sites. The Nel ASA share (ISIN NO0010081235) trades in Norwegian kroner, and analysts typically view containerized PEM units as one part of a broader, long-duration build-out in green hydrogen infrastructure rather than a short-term catalyst.