diff --git a/code/modules/shieldgen/_energy_field.dm b/code/modules/shieldgen/_energy_field.dm
index 71e88cee3e0..bf74e5c8f50 100644
--- a/code/modules/shieldgen/_energy_field.dm
+++ b/code/modules/shieldgen/_energy_field.dm
@@ -19,7 +19,7 @@
 	/// The time passed since the last "fail", AKA losing charge faster than you can replenish it.
 	var/time_since_fail = 100
 	/// How many renwicks per watt.
-	var/energy_conversion_rate = 0.0002
+	var/energy_conversion_rate = 0.00006
 	/// If the field is strong, then the energy field objects will turn dense.
 	var/strong_field = FALSE
 
diff --git a/code/modules/shieldgen/shield_capacitor.dm b/code/modules/shieldgen/shield_capacitor.dm
index a62a7cbf190..a589f09a9bd 100644
--- a/code/modules/shieldgen/shield_capacitor.dm
+++ b/code/modules/shieldgen/shield_capacitor.dm
@@ -14,7 +14,7 @@
 	var/stored_charge = 0
 	var/last_stored_charge = 0
 	var/time_since_fail = 100
-	var/max_charge = 2e8			//200 MJ
+	var/max_charge = 2e7			//20 MJ
 	var/max_charge_rate = 9000000	//9 MW
 	var/locked = FALSE
 
diff --git a/html/changelogs/Bat-MultiZShieldBalance.yml b/html/changelogs/Bat-MultiZShieldBalance.yml
new file mode 100644
index 00000000000..9b78cf49eda
--- /dev/null
+++ b/html/changelogs/Bat-MultiZShieldBalance.yml
@@ -0,0 +1,6 @@
+author: Batrachophrenoboocosmomachia
+delete-after: True
+changes:
+  - balance: "Reduces Horizon multi-z hull generator Watt -> Renwick conversion rate from 0.0002 to 0.00006, given increased capacitor throughput and reactor outputs."
+  - balance: "Reduces maximum shield capacitor storage from 200 mJ to 20 mJ."
+  - bugfix: "Corrects Shield Capacitor TGUI displaying capacitor storage as Watts instead of Joules."
diff --git a/tgui/packages/tgui/interfaces/ShieldCapacitor.tsx b/tgui/packages/tgui/interfaces/ShieldCapacitor.tsx
index 59d0f48e933..5247d06608a 100644
--- a/tgui/packages/tgui/interfaces/ShieldCapacitor.tsx
+++ b/tgui/packages/tgui/interfaces/ShieldCapacitor.tsx
@@ -18,7 +18,9 @@ export type CapacitorData = {
   time_since_fail: number;
   charge_rate: number;
   stored_charge: number;
+  stored_charge_readable: string;
   max_charge: number;
+  max_charge_readable: string;
   max_charge_rate: number;
 };
 
@@ -74,7 +76,7 @@ export const CapacitorWindow = (props, context) => {
             minValue={0}
             maxValue={data.max_charge}
           >
-            {data.stored_charge} / {data.max_charge} W
+            {data.stored_charge} / {data.max_charge} J
           </ProgressBar>
         </LabeledList.Item>
         <LabeledList.Item label="Charge Rate">