Power-to-X (PTX) facilitates the integration of renewable electricity into other sectors and contributes to a stabilization of the energy system by minimizing energy fluctuations.

PTX with sector coupling of e.g., electricity and district heating by means of energy storage is considered one of the main keys to the sustainable energy system of the future.

PTX is the general term for electricity conversion, energy storage, and reconversion pathways that use excess electricity – typically during peak periods where fluctuating renewable energy generation exceed the capacity or demand in the market. PTX technologies allow for the decoupling of power from the electricity sector for use in other energy-consuming sectors including district heating and transportation. Excess electricity from wind or solar is converted into other energy carriers (the “X”) and stored for later use. To utilize the excess electricity generated and thereby balance the grid, the renewable electricity can be converted into fuels such as green hydrogen (PTXH2), green methanol (PTXCH3OH) or green ammonia (PTXNH3) – or as heat in molten salt – Power-to-Salt (PTXSALT).