diff --git a/ships/corvette01/corvette01.tres b/ships/corvette01/corvette01.tres
index 7d36404a..ad399816 100644
--- a/ships/corvette01/corvette01.tres
+++ b/ships/corvette01/corvette01.tres
@@ -17,4 +17,4 @@ energy_recharge_rate = 5.0
 thrust_energy_consumption = 8.0
 turning_energy_consumption = 5.0
 shield_recharge_rate = 0.0
-weapon_energy_consumption = 20.0
+weapon_energy_consumption = 5.0
diff --git a/ships/ship.gd b/ships/ship.gd
index f3e50018..cdf69c48 100644
--- a/ships/ship.gd
+++ b/ships/ship.gd
@@ -113,6 +113,12 @@ func fire() -> void:
     var now := Time.get_ticks_msec()
     if now - self._last_fired_msec < self.ship_def.fire_interval_msec:
         return
+    
+    if self.energy < self.ship_def.weapon_energy_consumption:
+        return
+    
+    self.energy -= self.ship_def.weapon_energy_consumption
+    self.emit_signal("ship_energy_changed", self)
 
     var bullet_instance: RigidBody3D = self.bullet.instantiate()
     get_parent().add_child(bullet_instance)