diff --git a/technic/machines/supply_converter.lua b/technic/machines/supply_converter.lua
index cddd5e4..a94b9e2 100644
--- a/technic/machines/supply_converter.lua
+++ b/technic/machines/supply_converter.lua
@@ -58,7 +58,12 @@ local mesecons = {
 	}
 }
 
-local run = function(pos, node)
+local run = function(pos, node, run_stage)
+	-- run only in producer stage.
+	if run_stage == technic.receiver then
+		return
+	end
+
 	local remain = 0.9
 	-- Machine information
 	local machine_name  = S("Supply Converter")
diff --git a/technic/machines/switching_station.lua b/technic/machines/switching_station.lua
index f925817..8ace874 100644
--- a/technic/machines/switching_station.lua
+++ b/technic/machines/switching_station.lua
@@ -218,7 +218,7 @@ minetest.register_abm({
 		end
 		
 		-- Run all the nodes
-		local function run_nodes(list)
+		local function run_nodes(list, run_stage)
 			for _, pos2 in ipairs(list) do
 				technic.get_or_load_node(pos2)
 				local node2 = minetest.get_node(pos2)
@@ -227,14 +227,14 @@ minetest.register_abm({
 					nodedef = minetest.registered_nodes[node2.name]
 				end
 				if nodedef and nodedef.technic_run then
-					nodedef.technic_run(pos2, node2)
+					nodedef.technic_run(pos2, node2, run_stage)
 				end
 			end
 		end
 		
-		run_nodes(PR_nodes)
-		run_nodes(RE_nodes)
-		run_nodes(BA_nodes)
+		run_nodes(PR_nodes, technic.producer)
+		run_nodes(RE_nodes, technic.receiver)
+		run_nodes(BA_nodes, technic.battery)
 
 		-- Strings for the meta data
 		local eu_demand_str    = tier.."_EU_demand"