diff --git a/src/main/kotlin/ru/dbotthepony/mc/otm/block/entity/cable/EnergyCableGraph.kt b/src/main/kotlin/ru/dbotthepony/mc/otm/block/entity/cable/EnergyCableGraph.kt
index 906d60282..0ec06fe94 100644
--- a/src/main/kotlin/ru/dbotthepony/mc/otm/block/entity/cable/EnergyCableGraph.kt
+++ b/src/main/kotlin/ru/dbotthepony/mc/otm/block/entity/cable/EnergyCableGraph.kt
@@ -99,8 +99,14 @@ class EnergyCableGraph : GraphNodeList<EnergyCableBlockEntity.Node, EnergyCableG
 		var transferredLastTick = Decimal.ZERO
 			private set
 
-		val availableThroughput: Decimal
-			get() = throughput - transferredLastTick
+		val availableThroughput: Decimal get() {
+			if (!throughputKnown) {
+				throughput = nodes.maxOf { it.energyThroughput }
+				throughputKnown = true
+			}
+
+			return throughput - transferredLastTick
+		}
 
 		private var throughputKnown = false
 		private var lastTick = 0