A system and method for optimizing the returns of power feedstock producers includes automated selection between selling raw feedstock or generating power and storing it in a storage device for subsequent sale under more favorable market conditions. The system may comprise grid-scale electric power storage devices which enable a feedstock supplier—e.g., a natural gas producer—to utilize real-time market data to allocate a feedstock between its sale “as is”—i.e., as fuel or chemical feedstock—and use of the feedstock to produce electric power which may be stored for later sale when the market price for peaking electric power is favorable. In certain embodiments, the system may be entirely automated and the collection of market data, the allocation of feedstock and the generation and subsequent supplying of electric power to a grid may be entirely performed by the system without operator intervention.