diff --git a/src/main/kotlin/ru/dbotthepony/mc/otm/ServerConfig.kt b/src/main/kotlin/ru/dbotthepony/mc/otm/ServerConfig.kt
index 8c5b38dfa..d29bded02 100644
--- a/src/main/kotlin/ru/dbotthepony/mc/otm/ServerConfig.kt
+++ b/src/main/kotlin/ru/dbotthepony/mc/otm/ServerConfig.kt
@@ -153,6 +153,7 @@ object ServerConfig {
 		val RADIUS_VERTICAL: Double by specBuilder.comment("In meters").defineInRange("radiusVertical", 1.0, 0.0)
 		val BREAK_BLOCKS: Boolean by specBuilder.comment("Break blocks without any blast resistance").define("breakBlocks", true)
 		val DAMAGE: Double by specBuilder.comment("Max potential damage done by shockwave").defineInRange("damage", 12.0, 0.0, Float.MAX_VALUE.toDouble())
+		val ENERGY_COST by specBuilder.defineImpreciseFraction("energyCost", ImpreciseFraction(2048), ImpreciseFraction.ZERO)
 
 		init {
 			specBuilder.pop()
diff --git a/src/main/kotlin/ru/dbotthepony/mc/otm/android/feature/ShockwaveFeature.kt b/src/main/kotlin/ru/dbotthepony/mc/otm/android/feature/ShockwaveFeature.kt
index cd3b0cd7c..8749a6f05 100644
--- a/src/main/kotlin/ru/dbotthepony/mc/otm/android/feature/ShockwaveFeature.kt
+++ b/src/main/kotlin/ru/dbotthepony/mc/otm/android/feature/ShockwaveFeature.kt
@@ -8,6 +8,7 @@ import net.minecraft.world.phys.AABB
 import ru.dbotthepony.mc.otm.ServerConfig
 import ru.dbotthepony.mc.otm.android.AndroidSwitchableFeature
 import ru.dbotthepony.mc.otm.capability.MatteryPlayerCapability
+import ru.dbotthepony.mc.otm.capability.extractEnergyInnerExact
 import ru.dbotthepony.mc.otm.client.render.ResearchIcons
 import ru.dbotthepony.mc.otm.core.Vector
 import ru.dbotthepony.mc.otm.core.getEllipsoidBlockPositions
@@ -33,7 +34,7 @@ class ShockwaveFeature(capability: MatteryPlayerCapability) : AndroidSwitchableF
 		private set
 
 	override fun tickClient() {
-		if (isActive && ply.isSteppingCarefully && cooldown <= 0) {
+		if (isActive && ply.isSteppingCarefully && cooldown <= 0 && android.androidEnergy.extractEnergyInnerExact(ServerConfig.Shockwave.ENERGY_COST, true).isPositive) {
 			ply.deltaMovement += Vector(0.0, -ServerConfig.Shockwave.ACCELERATION / 20.0, 0.0)
 		}
 
@@ -41,6 +42,12 @@ class ShockwaveFeature(capability: MatteryPlayerCapability) : AndroidSwitchableF
 	}
 
 	fun shockwave() {
+		if (cooldown > 0 || !android.androidEnergy.extractEnergyInnerExact(ServerConfig.Shockwave.ENERGY_COST, false).isPositive) {
+			return
+		}
+
+		cooldown = ServerConfig.Shockwave.COOLDOWN
+
 		// TODO: raycasting
 		val entities = ply.level.getEntities(ply, AABB(
 			ply.position.x - ServerConfig.Shockwave.RADIUS_HORIZONTAL,
@@ -110,7 +117,7 @@ class ShockwaveFeature(capability: MatteryPlayerCapability) : AndroidSwitchableF
 			airTicks = (airTicks - 1).coerceAtLeast(0)
 		}
 
-		if (isActive && cooldown <= 0) {
+		if (isActive && cooldown <= 0 && android.androidEnergy.extractEnergyInnerExact(ServerConfig.Shockwave.ENERGY_COST, true).isPositive) {
 			val old = wasMidair
 			wasMidair = !ply.isOnGround
 
@@ -119,12 +126,11 @@ class ShockwaveFeature(capability: MatteryPlayerCapability) : AndroidSwitchableF
 			}
 
 			if (old != wasMidair && !wasMidair && ServerConfig.Shockwave.TERMINAL_VELOCITY <= (highestSpeed * 20.0) && ply.isSteppingCarefully) {
-				cooldown = ServerConfig.Shockwave.COOLDOWN
-
 				if (isClient) {
 					// I HATE SELF-UPDATING PLAYERS
 					// I HATE SELF-UPDATING PLAYERS
 					// fix "bug" where shockwave doesn't trigger even when player is falling faster than orbiting satellite
+					cooldown = ServerConfig.Shockwave.COOLDOWN
 					MatteryPlayerNetworkChannel.sendToServer(TriggerShockwavePacket)
 				} else {
 					shockwave()