Systems and methods for controlling a Power-to-X process to reduce feedstock costs

A method for controlling a process that produces e-fuels, the method comprising:

• a. providing a first amount of electrical power to an electrolysis module to produce H2, mixing the H2 with CO2 to provide a gas mixture having a first ratio of H2 to CO2, wherein the electrolysis module comprises an electrolyzer that performs solid oxide electrolysis, performing a reverse water gas shift reaction on the gas mixture to produce synthesis gas, wherein the reverse water gas shift reaction is performed at a temperature between 900° F. and 1800° F., and reacting the synthesis gas to produce a liquid hydrocarbon;
• and
• b. in response to a stimulus, providing a second amount of electrical power to the electrolysis module to produce Hz, mixing the H2 with CO2 to provide a gas mixture having a second ratio of H2 to CO2, performing a reverse water gas shift reaction on the gas mixture to produce synthesis gas, and reacting the synthesis gas to produce a liquid hydrocarbon, wherein the second amount of electrical power is an amount between 0 and the amount of electrical power of the first amount, and wherein the second ratio of H2 to CO2 is substantially similar to the first ratio of H2 to CO2.