diff --git a/src/main/java/gregtech/api/GTValues.java b/src/main/java/gregtech/api/GTValues.java
index 3ec0fcaa5e0..44545152acb 100644
--- a/src/main/java/gregtech/api/GTValues.java
+++ b/src/main/java/gregtech/api/GTValues.java
@@ -54,7 +54,7 @@ public class GTValues {
      * The Voltage Tiers. Use this Array instead of the old named Voltage Variables
      */
     public static final long[] V = { 8, 32, 128, 512, 2048, 8192, 32768, 131072, 524288, 2097152, 8388608, 33554432,
-            134217728, 536870912, Integer.MAX_VALUE };
+            134217728, 536870912, 2147483648L };
 
     /**
      * The Voltage Tiers divided by 2.
@@ -78,10 +78,10 @@ public class GTValues {
      * The Voltage Tiers extended all the way to max Long value for overclocking
      */
     public static final long[] VOC = { 8, 32, 128, 512, 2048, 8192, 32768, 131072, 524288, 2097152, 8388608, 33554432,
-            134217728, 536870912, Integer.MAX_VALUE, 8589934592L, 34359738368L, 137438953472L, 549755813888L,
-            2199023255552L,
-            8796093022208L, 35184372088832L, 140737488355328L, 562949953421312L, 2251799813685248L, 9007199254740992L,
-            36028797018963968L, 144115188075855872L, 576460752303423488L, 2305843009213693952L, Long.MAX_VALUE };
+            134217728, 536870912, 2147483648L, 8589934592L, 34359738368L, 137438953472L, 549755813888L,
+            2199023255552L, 8796093022208L, 35184372088832L, 140737488355328L, 562949953421312L, 2251799813685248L,
+            9007199254740992L, 36028797018963968L, 144115188075855872L, 576460752303423488L, 2305843009213693952L,
+            Long.MAX_VALUE };
 
     public static final int ULV = 0;
     public static final int LV = 1;
diff --git a/src/main/java/gregtech/api/util/GTUtility.java b/src/main/java/gregtech/api/util/GTUtility.java
index 729898ff65c..3f533b898c3 100644
--- a/src/main/java/gregtech/api/util/GTUtility.java
+++ b/src/main/java/gregtech/api/util/GTUtility.java
@@ -75,9 +75,6 @@
 import java.util.function.Function;
 import java.util.function.Predicate;
 
-import static gregtech.api.GTValues.V;
-import static gregtech.api.GTValues.VOC;
-
 public class GTUtility {
 
     public static <T> String[] mapToString(T[] array, Function<T, String> mapper) {
@@ -257,7 +254,10 @@ public static int nearestLesser(@NotNull long[] array, long value) {
      *         tier that can handle it, {@code MAX} is returned.
      */
     public static byte getTierByVoltage(long voltage) {
-        return (byte) Math.min(GTValues.MAX, nearestLesser(V, voltage) + 1);
+        if (voltage >= Integer.MAX_VALUE) {
+            return GTValues.MAX;
+        }
+        return getOCTierByVoltage(voltage);
     }
 
     /**
@@ -266,7 +266,10 @@ public static byte getTierByVoltage(long voltage) {
      *         tier that can handle it, {@code MAX_TRUE} is returned.
      */
     public static byte getOCTierByVoltage(long voltage) {
-        return (byte) Math.min(GTValues.MAX_TRUE, nearestLesser(VOC, voltage) + 1);
+        if (voltage <= GTValues.V[GTValues.ULV]) {
+            return GTValues.ULV;
+        }
+        return (byte) ((62 - Long.numberOfLeadingZeros(voltage - 1)) >> 1);
     }
 
     /**
@@ -276,7 +279,14 @@ public static byte getOCTierByVoltage(long voltage) {
      *         {@code ULV} if there's no tier below
      */
     public static byte getFloorTierByVoltage(long voltage) {
-        return (byte) Math.max(GTValues.ULV, nearestLesserOrEqual(VOC, voltage));
+        if (voltage < GTValues.V[GTValues.LV]) {
+            return GTValues.ULV;
+        }
+        if (voltage == GTValues.VOC[GTValues.MAX_TRUE]) {
+            return GTValues.MAX_TRUE;
+        }
+
+        return (byte) ((60 - Long.numberOfLeadingZeros(voltage)) >> 1);
     }
 
     @SuppressWarnings("deprecation")