Umbilicals/Stage 0

[kfsone]

"5... 4... 3... 2... 1... ... ... Oh, the batteries went flat on the pad"

Would it be possible for a mod to make the launch holders/clamps/gantries have infinite power to share with the vehicle?

[zer0Kerbal]

there are several module manager patches that do this:

not infinite - but as much as you need/want; along with any other resources you want it to dispense:

@PART[*]:HAS[@MODULE[LaunchClamp]]:FOR[Me]
{
	@MODULE[ModuleGenerator]
	{
		@OUTPUT_RESOURCE[ElectricCharge]
		{
			@rate = 100
		}
	}
	MODULE
	{
		name = ModuleGenerator
		isAlwaysActive = true
		OUTPUT_RESOURCE
		{
			name = LiquidFuel
			rate = 9
		}
	}
	MODULE
	{
		name = ModuleGenerator
		isAlwaysActive = true
		OUTPUT_RESOURCE
		{
			name = Oxidizer
			rate = 11
		}
	}
	RESOURCE
	{
		name = ElectricCharge
		amount = 500
		maxAmount = 500
	}
	RESOURCE
	{
		name = LiquidFuel
		amount = 9000
		maxAmount = 90000
	}
	RESOURCE
	{
		name = Oxidizer
		amount = 11000
		maxAmount = 110000
	}
}
}