A fuel blending system for a power generation unit fluidly coupled to a first fuel source and a second fuel source, comprising: a plurality of sensors (134a, 134b, 134c, 134d, 134e, 134f, 134g, 134h, 134i), each sensor (134a, 134b, 134c, 134d, 134e, 134f, 134g, 134h, 134i) configured to detect at least one operating parameter of the power generation unit; a first plurality of valves (122, 124, 126) configured to selectively prevent or enable fluid communication between the first fuel source and the power generation unit, the first plurality of valves (122, 124, 126) fluidly coupled in series and comprising a first progressive valve configured to gradually open or close to at least one predetermined setpoint; a second plurality of valves (128, 130, 132) configured to selectively prevent or enable fluid communication between the second fuel source and the power generation unit, the second plurality of valves (128, 130, 132) comprising a second progressive valve configured to gradually open or close to at least one predetermined setpoint; and a controller communicatively coupled to each of the plurality of sensors (134a, 134b, 134c, 134d, 134e, 134f, 134g, 134h, 134i), communicatively coupled via a first plurality of communication lines (142, 146, 150) to each valve of the first plurality of valves (122, 124, 126), and communicatively coupled via a second plurality of communication lines (144, 148, 152) to each valve of the second plurality of valves (128, 130, 132), the controller configured to receive a detected operating parameter from a sensor of the plurality of sensors (134a, 134b, 134c, 134d, 134e, 134f, 134g, 134h, 134i), compare the detected operating parameter to another operating parameter, and based on the comparison, transmit an instruction to at least one of the first progressive valve and the second progressive valve to enable a first fuel from the first fuel source to blend with a second fuel from the second fuel source. a plurality of sensors (134a, 134b, 134c, 134d, 134e, 134f, 134g, 134h, 134i), each sensor (134a, 134b, 134c, 134d, 134e, 134f, 134g, 134h, 134i) configured to detect at least one operating parameter of the power generation unit; a first plurality of valves (122, 124, 126) configured to selectively prevent or enable fluid communication between the first fuel source and the power generation unit, the first plurality of valves (122, 124, 126) fluidly coupled in series and comprising a first progressive valve configured to gradually open or close to at least one predetermined setpoint; a second plurality of valves (128, 130, 132) configured to selectively prevent or enable fluid communication between the second fuel source and the power generation unit, the second plurality of valves (128, 130, 132) comprising a second progressive valve configured to gradually open or close to at least one predetermined setpoint; and a controller communicatively coupled to each of the plurality of sensors (134a, 134b, 134c, 134d, 134e, 134f, 134g, 134h, 134i), communicatively coupled via a first plurality of communication lines (142, 146, 150) to each valve of the first plurality of valves (122, 124, 126), and communicatively coupled via a second plurality of communication lines (144, 148, 152) to each valve of the second plurality of valves (128, 130, 132), the controller configured to receive a detected operating parameter from a sensor of the plurality of sensors (134a, 134b, 134c, 134d, 134e, 134f, 134g, 134h, 134i), compare the detected operating parameter to another operating parameter, and based on the comparison, transmit an instruction to at least one of the first progressive valve and the second progressive valve to enable a first fuel from the first fuel source to blend with a second fuel from the second fuel source.