Power-to-X and green hydrogen can be key drivers to accelerate the green energy transition and reaching a low-carbon economy. Ramboll has analysed the market potential and offers considerations on taking the emerging technologies from potential to profit.

Power-to-X (also known as PtX or P2X) is a collective term for conversion technologies that turn electricity into carbon-neutral synthetic fuels, such as hydrogen, synthetic natural gas, liquid fuels, or chemicals. These can be used in sectors that are hard to decarbonise or, unlike electric power, be stored for later use.

Hydrogen is a colourless and invisible gas. However, although there is no universal naming convention for H2, we use a vivid colour spectrum for differentiating types of hydrogen when referring to the production methods and origins. Let’s have a look at the hydrogen rainbow and the significance behind the various colours.