Product Types
What is an Electrolyzer?
On-site. On demand. No cylinders.
An electrolyzer is an electrochemical device that generates hydrogen by splitting water using electrical energy. This process — water electrolysis — produces hydrogen directly at the point of use, at a defined purity and flow rate, on demand.
On-site hydrogen generation using an electrolyzer removes the operational and logistical overhead of cylinder-based supply. No procurement cycles. No high-pressure storage. No dependency on delivery schedules. The hydrogen is produced continuously, at consistent quality, from water and electricity.
Electrolyzers are deployed across a wide range of sectors — energy, industrial, automotive, defence, materials, and process industries — wherever hydrogen is consumed as a fuel, feedstock, process gas, or test medium. In procurement and operational contexts they are often referred to as hydrogen generators. Both terms describe the same class of device.
Three electrolyzer technologies are commercially available: PEM, Alkaline, and AEM. Each uses a different electrochemical mechanism, suits different operating conditions, and is optimised for different output requirements. Choosing the right technology comes down to your required purity, flow rate, duty cycle, and power source. Hydrogenergy supplies all three with full technical support.