An Indian start-up named Greenvize has developed a compact hydrogen cooking system for household and commercial use. The device combines an electrolyzer with a proton exchange membrane in a kitchen unit, making it possible to produce hydrogen from water on the spot, without the need for cylinders or storage and delivery infrastructure.
Unlike conventional systems wherein hydrogen is required to be transported and stored under pressure, this system generates hydrogen when needed. Hydrogen generation begins as soon as the stove is turned on, providing a real-time fuel supply.
The device’s operating principle is based on electrolysis: it splits water into hydrogen and oxygen. Hydrogen is used for cooking, and the only combustion product is water vapor. Oxygen is released into the room, potentially improving indoor air quality.
Sanjeev Choudhary, founder of Greenvize Energy Solutions, says that the system requires about 100 ml of purified water and roughly 1 kWh of electricity for six hours of continuous operation. The device can be integrated with solar panels, making it possible to cook without a grid connection.
The company presents this solution as an alternative to liquefied gas and induction stoves, especially for high-traffic venues like hotels and restaurants. As a point of comparison, one induction stove burner consumes about 1.5–2 kW per hour, which adds up to 9–12 kWh over six hours, whereas the hydrogen cooking system provides a comparable operation time with significantly lower energy consumption.
In the basic configuration, hydrogen is not stored but used on the spot, which improves safety and makes the device easier to operate. If necessary, the system can also accumulate hydrogen: it can be produced in advance, namely, during the low-load hours or with excess solar generation, and stored in cylinders at a pressure of 200–300 bar or in buffer tanks.
The single-burner version of the system costs about 105,000 Indian rupees (US$1,128), while the two-burner version costs about 150,000 rupees (US$1,610).
