We will likely make improvements primarily in capex, power costs, and transportation to lower our cost of producing fuel. Fundamental thermodynamics and overpo

We will likely make improvements primarily in capex, power costs, and transportation to lower our cost of producing fuel. Fundamental thermodynamics and overpotential limits will hold our efficiency to some cap, likely 75% or lower. We could try to push higher than 60%, but there will be an optimum for capex vs opex that will probably not favor the highest possible efficiencies.