I'm trying to build a generator part that takes liquid fuel and oxidizer, and produces electricty. I'm using ModuleGenerator to take the fuel as INPUT_RESOURCE and produce electricity using OUTPUT_RESOURCE. Here's the full config: PART { //General Parameters name = GSTek_Generator module = Part author = gsuberland // --- asset parameters --- mesh = model.mu scale = 1 rescaleFactor = 1 // --- node definitions --- // definition format is Position X, Position Y, Position Z, Up X, Up Y, Up Z node_attach = 0, 0.0, 0, 0.0, -1.0, 0.0 // --- FX definitions --- // --- editor parameters --- cost = 2500 category = Utility subcategory = 0 title = Mk.I Electric Generator manufacturer = GSTek Industries description = Generates electricity by burning liquid fuel and oxidiser through a small internal turbine. // attachment rules: stack, srfAttach, allowStack, allowSrfAttach, allowCollision attachRules = 0,1,0,0,0 // --- standard part parameters --- mass = 0.07 dragModelType = default maximum_drag = 0.1 minimum_drag = 0.1 angularDrag = 1 crashTolerance = 11 maxTemp = 2800 MODULE { name = ModuleGenerator isAlwaysActive = false requiresAllInputs = true startEventGUIName = Start Generator endEventGUIName = Stop Generator INPUT_RESOURCE { name = LiquidFuel rate = -1.0 } INPUT_RESOURCE { name = Oxidizer rate = -1.0 } OUTPUT_RESOURCE { name = ElectricCharge rate = 5.0 } } } When I use it in game, it appears and I can activate it, but it does nothing - I get "Efficiency: 0.00" on the right-click menu for the generator, despite it being directly stuck to a fuel source. No fuel is used, no electricity is produced. Any ideas as to why this is happening?