TECHNOLOGY FOCUS - ELECTRICAL POWER AND ENERGY - Preferred Method: The method further comprises providing a variable amount of electricity from a second electrical source to maintain the liquid fuel production at a desired level, where second electricity source is selected from engine generator, gas turbine, and/or fuel cell, which is fueled with hydrocarbon fuel, preferably natural gas. The source of renewable electrical energy, synthesis gas generation unit, air separation unit, and second electricity source are provided as co-located. The method further includes providing electricity from the renewable energy source to power for plasma included in the synthesis gas generation unit; providing electricity from the renewable energy source to power for a joule heated melter included in the synthesis gas generation unit; and storing a portion(s) of oxygen for use at a later time. The air separation unit is provided as cryogenic separation unit. Oxygen produced in the air separation unit is stored cryogenically. The method further includes providing at least some of the electricity from the renewable energy source to a transmission system for use by a downstream user. The electricity to the joule heated melter included in the synthesis gas generation unit is reduced at disproportionately smaller amount when the electricity input from the renewable energy source to the synthesis gas generation unit is reduced. Direct current (DC) is used to transmit power from the renewable energy electricity source to the synthesis gas generation unit. The synthesis gas generation unit includes plasma and joule heated melter. The method includes varying the relative amounts of plasma heating, melter heating, oxygen, and steam provided in the synthesis gas generation unit in response to variations in the amount of renewable energy source electricity. The liquid fuel is produced by the step of reacting carbon dioxide (CO2) generated from hydrocarbon feedstock with hydrogen produced in the electrolysis unit. Some of renewable energy source electricity is used for compressing CO2. EXAMPLE - No suitable example given.