Power-to-Gas Calculator

Hydrogen Production

Please enter one value and change the efficiency factor, if needed. The other three values will be calculated. Power-to-Gas could also be called Electricity-to-Gas.

Example: with an efficiency of 60 percent, 20 kilograms of water can be decomposed into 2.238 kilograms of hydrogen and 17.762 kilograms of oxygen with an energy expenditure of 124.3 kilowatt hours.

Storing electrical power in batteries is relatively complex and therefore expensive. Especially when storing over a longer period of time, alternatives are used in which the electricity is converted into other types of energy that are easier to store. One way of storing is chemical, by carrying out a chemical reaction which absorbs energy and can also be reversed relatively easily, releasing energy again. The ease of reversing is essential and not a given; for example, it is no problem to burn a piece of wood, but the reverse step is not possible.
Liquid fuels can also be produced, and the technology is then called Power to Liquid. The general term is Power-to-X. With Power-to-Gas, hydrogen is not the only variant, but it is the most common. Other fuel gases such as ammonia and methane are also possible and are used for this purpose.
The disadvantage of energy conversion, in addition to the costs, is the loss of energy due to the limited efficiency.