diff --git a/api.lua b/api.lua
index 017b7ea..8422bfa 100644
--- a/api.lua
+++ b/api.lua
@@ -21,6 +21,12 @@ industrialtest.api.maceratorRecipes={}
 industrialtest.api.compressorRecipes={}
 industrialtest.api.extractorRecipes={}
 
+industrialtest.api.lvPowerFlow=600
+industrialtest.api.mvPowerFlow=2400
+industrialtest.api.hvPowerFlow=10200
+industrialtest.api.evPowerFlow=40800
+industrialtest.api.ivPowerFlow=163800
+
 local function clamp(num,min,max)
 	return math.max(math.min(num,max),min)
 end
diff --git a/cables.lua b/cables.lua
index 0b34235..19df34e 100644
--- a/cables.lua
+++ b/cables.lua
@@ -196,4 +196,4 @@ local function registerCable(name,displayName,material,size,flow)
 	})
 end
 
-registerCable("copper","Copper",industrialtest.elementKeys.copperIngot,0.15,216)
+registerCable("copper","Copper",industrialtest.elementKeys.copperIngot,0.15,industrialtest.api.mvPowerFlow)
diff --git a/craftitems.lua b/craftitems.lua
index 2949f48..7cdd92c 100644
--- a/craftitems.lua
+++ b/craftitems.lua
@@ -22,7 +22,7 @@ minetest.register_tool("industrialtest:re_battery",{
 	inventory_image="industrialtest_re_battery.png",
 	_industrialtest_powerStorage=true,
 	_industrialtest_powerCapacity=7000,
-	_industrialtest_powerFlow=200
+	_industrialtest_powerFlow=industrialtest.api.lvPowerFlow
 })
 minetest.register_craft({
 	type="shaped",
diff --git a/machines.lua b/machines.lua
index 7e4885a..d49132f 100644
--- a/machines.lua
+++ b/machines.lua
@@ -92,7 +92,7 @@ local definition={
 		meta:set_string("formspec",generatorFormspec(0,0))
 		meta:set_int("fuelTime",0)
 		meta:set_int("maxFuelTime",1)
-		industrialtest.api.addPowerStorage(meta,7000,100,"oooooo")
+		industrialtest.api.addPowerStorage(meta,7000,industrialtest.api.lvPowerFlow,"oooooo")
 		minetest.get_node_timer(pos):start(industrialtest.updateDelay)
 	end,
 	on_timer=function(pos,elapsed)
@@ -734,7 +734,7 @@ registerSimpleElectricItemProcessor({
 	name="electric_furnace",
 	displayName="Electric Furnace",
 	capacity=416,
-	flow=390,
+	flow=industrialtest.api.lvPowerFlow,
 	opPower=60,
 	method="cooking",
 	efficiency=0.5
@@ -762,7 +762,7 @@ registerSimpleElectricItemProcessor({
 	name="macerator",
 	displayName="Macerator",
 	capacity=1200,
-	flow=600,
+	flow=industrialtest.api.lvPowerFlow,
 	opPower=100,
 	method="industrialtest.macerating",
 	efficiency=1
@@ -781,7 +781,7 @@ registerSimpleElectricItemProcessor({
 	name="compressor",
 	displayName="Compressor",
 	capacity=1400,
-	flow=600,
+	flow=industrialtest.api.lvPowerFlow,
 	opPower=120,
 	method="industrialtest.compressing",
 	efficiency=1
@@ -800,7 +800,7 @@ registerSimpleElectricItemProcessor({
 	name="extractor",
 	displayName="Extractor",
 	capacity=900,
-	flow=600,
+	flow=industrialtest.api.lvPowerFlow,
 	opPower=100,
 	method="industrialtest.extracting",
 	efficiency=1