diff --git a/Models/FlightDeck/a320.flightdeck.xml b/Models/FlightDeck/a320.flightdeck.xml
index 6dd2521c..4ec08048 100644
--- a/Models/FlightDeck/a320.flightdeck.xml
+++ b/Models/FlightDeck/a320.flightdeck.xml
@@ -408,16 +408,10 @@
 		<object-name>wpt_led</object-name>
 		<object-name>wpt_led.001</object-name>
 		<condition>
-			<or>
-				<greater-than-equals>
-					<property>systems/electrical/bus/dc1</property>
-					<value>25</value>
-				</greater-than-equals>
-				<greater-than-equals>
-					<property>systems/electrical/bus/dc2</property>
-					<value>25</value>
-				</greater-than-equals>
-			</or>
+			<greater-than-equals>
+				<property>systems/electrical/bus/dc-ess</property>
+				<value>25</value>
+			</greater-than-equals>
 		</condition>
 	</animation>
 	
@@ -471,16 +465,10 @@
 			<repeatable type="bool">true</repeatable>
 			<binding>
 				<condition>
-					<or>
-						<greater-than-equals>
-							<property>systems/electrical/bus/dc1</property>
-							<value>25</value>
-						</greater-than-equals>
-						<greater-than-equals>
-							<property>systems/electrical/bus/dc2</property>
-							<value>25</value>
-						</greater-than-equals>
-					</or>
+					<greater-than-equals>
+						<property>systems/electrical/bus/dc-ess</property>
+						<value>25</value>
+					</greater-than-equals>
 				</condition>
 				<command>nasal</command>
 				<script>
@@ -503,16 +491,10 @@
 			<repeatable type="bool">true</repeatable>
 			<binding>
 				<condition>
-					<or>
-						<greater-than-equals>
-							<property>systems/electrical/bus/dc1</property>
-							<value>25</value>
-						</greater-than-equals>
-						<greater-than-equals>
-							<property>systems/electrical/bus/dc2</property>
-							<value>25</value>
-						</greater-than-equals>
-					</or>
+					<greater-than-equals>
+						<property>systems/electrical/bus/dc-ess</property>
+						<value>25</value>
+					</greater-than-equals>
 				</condition>
 				<command>nasal</command>
 				<script>
@@ -548,16 +530,10 @@
 			<repeatable type="bool">false</repeatable>
 			<binding>
 				<condition>
-					<or>
-						<greater-than-equals>
-							<property>systems/electrical/bus/dc1</property>
-							<value>25</value>
-						</greater-than-equals>
-						<greater-than-equals>
-							<property>systems/electrical/bus/dc2</property>
-							<value>25</value>
-						</greater-than-equals>
-					</or>
+					<greater-than-equals>
+						<property>systems/electrical/bus/dc-ess</property>
+						<value>25</value>
+					</greater-than-equals>
 				</condition>
 				<command>nasal</command>
 				<script>
@@ -783,16 +759,10 @@
 			<button>0</button>
 			<binding>
 				<condition>
-					<or>
-						<greater-than-equals>
-							<property>systems/electrical/bus/dc1</property>
-							<value>25</value>
-						</greater-than-equals>
-						<greater-than-equals>
-							<property>systems/electrical/bus/dc2</property>
-							<value>25</value>
-						</greater-than-equals>
-					</or>
+					<greater-than-equals>
+						<property>systems/electrical/bus/dc-ess</property>
+						<value>25</value>
+					</greater-than-equals>
 				</condition>
 				<command>nasal</command>
 				<script>
@@ -816,16 +786,10 @@
 			<button>0</button>
 			<binding>
 				<condition>
-					<or>
-						<greater-than-equals>
-							<property>systems/electrical/bus/dc1</property>
-							<value>25</value>
-						</greater-than-equals>
-						<greater-than-equals>
-							<property>systems/electrical/bus/dc2</property>
-							<value>25</value>
-						</greater-than-equals>
-					</or>
+					<greater-than-equals>
+						<property>systems/electrical/bus/dc-ess</property>
+						<value>25</value>
+					</greater-than-equals>
 				</condition>
 				<command>nasal</command>
 				<script>
@@ -849,16 +813,10 @@
 			<button>0</button>
 			<binding>
 				<condition>
-					<or>
-						<greater-than-equals>
-							<property>systems/electrical/bus/dc1</property>
-							<value>25</value>
-						</greater-than-equals>
-						<greater-than-equals>
-							<property>systems/electrical/bus/dc2</property>
-							<value>25</value>
-						</greater-than-equals>
-					</or>
+					<greater-than-equals>
+						<property>systems/electrical/bus/dc-ess</property>
+						<value>25</value>
+					</greater-than-equals>
 				</condition>
 				<command>nasal</command>
 				<script>
@@ -921,16 +879,10 @@
 			<button>0</button>
 			<binding>
 				<condition>
-					<or>
-						<greater-than-equals>
-							<property>systems/electrical/bus/dc1</property>
-							<value>25</value>
-						</greater-than-equals>
-						<greater-than-equals>
-							<property>systems/electrical/bus/dc2</property>
-							<value>25</value>
-						</greater-than-equals>
-					</or>
+					<greater-than-equals>
+						<property>systems/electrical/bus/dc-ess</property>
+						<value>25</value>
+					</greater-than-equals>
 				</condition>
 				<command>property-toggle</command>
 				<property>modes/cpt-du-xfr</property>
@@ -1026,16 +978,10 @@
 			<button>0</button>
 			<binding>
 				<condition>
-					<or>
-						<greater-than-equals>
-							<property>systems/electrical/bus/dc1</property>
-							<value>25</value>
-						</greater-than-equals>
-						<greater-than-equals>
-							<property>systems/electrical/bus/dc2</property>
-							<value>25</value>
-						</greater-than-equals>
-					</or>
+					<greater-than-equals>
+						<property>systems/electrical/bus/dc-ess</property>
+						<value>25</value>
+					</greater-than-equals>
 				</condition>
 				<command>property-toggle</command>
 				<property>modes/fo-du-xfr</property>
@@ -1172,16 +1118,10 @@
 			<repeatable type="bool">false</repeatable>
 			<binding>
 				<condition>
-					<or>
-						<greater-than-equals>
-							<property>systems/electrical/bus/dc1</property>
-							<value>25</value>
-						</greater-than-equals>
-						<greater-than-equals>
-							<property>systems/electrical/bus/dc2</property>
-							<value>25</value>
-						</greater-than-equals>
-					</or>
+					<greater-than-equals>
+						<property>systems/electrical/bus/dc-ess</property>
+						<value>25</value>
+					</greater-than-equals>
 				</condition>
 				<command>property-assign</command>
 				<property>ECAM/Lower/page</property>
@@ -1198,16 +1138,10 @@
 			<repeatable type="bool">false</repeatable>
 			<binding>
 				<condition>
-					<or>
-						<greater-than-equals>
-							<property>systems/electrical/bus/dc1</property>
-							<value>25</value>
-						</greater-than-equals>
-						<greater-than-equals>
-							<property>systems/electrical/bus/dc2</property>
-							<value>25</value>
-						</greater-than-equals>
-					</or>
+					<greater-than-equals>
+						<property>systems/electrical/bus/dc-ess</property>
+						<value>25</value>
+					</greater-than-equals>
 				</condition>
 				<command>property-assign</command>
 				<property>ECAM/Lower/page</property>
@@ -1224,16 +1158,10 @@
 			<repeatable type="bool">false</repeatable>
 			<binding>
 				<condition>
-					<or>
-						<greater-than-equals>
-							<property>systems/electrical/bus/dc1</property>
-							<value>25</value>
-						</greater-than-equals>
-						<greater-than-equals>
-							<property>systems/electrical/bus/dc2</property>
-							<value>25</value>
-						</greater-than-equals>
-					</or>
+					<greater-than-equals>
+						<property>systems/electrical/bus/dc-ess</property>
+						<value>25</value>
+					</greater-than-equals>
 				</condition>
 				<command>property-assign</command>
 				<property>ECAM/Lower/page</property>
@@ -1250,16 +1178,10 @@
 			<repeatable type="bool">false</repeatable>
 			<binding>
 				<condition>
-					<or>
-						<greater-than-equals>
-							<property>systems/electrical/bus/dc1</property>
-							<value>25</value>
-						</greater-than-equals>
-						<greater-than-equals>
-							<property>systems/electrical/bus/dc2</property>
-							<value>25</value>
-						</greater-than-equals>
-					</or>
+					<greater-than-equals>
+						<property>systems/electrical/bus/dc-ess</property>
+						<value>25</value>
+					</greater-than-equals>
 				</condition>
 				<command>property-assign</command>
 				<property>ECAM/Lower/page</property>
@@ -1276,16 +1198,10 @@
 			<repeatable type="bool">false</repeatable>
 			<binding>
 				<condition>
-					<or>
-						<greater-than-equals>
-							<property>systems/electrical/bus/dc1</property>
-							<value>25</value>
-						</greater-than-equals>
-						<greater-than-equals>
-							<property>systems/electrical/bus/dc2</property>
-							<value>25</value>
-						</greater-than-equals>
-					</or>
+					<greater-than-equals>
+						<property>systems/electrical/bus/dc-ess</property>
+						<value>25</value>
+					</greater-than-equals>
 				</condition>
 				<command>property-assign</command>
 				<property>ECAM/Lower/page</property>
@@ -1302,16 +1218,10 @@
 			<repeatable type="bool">false</repeatable>
 			<binding>
 				<condition>
-					<or>
-						<greater-than-equals>
-							<property>systems/electrical/bus/dc1</property>
-							<value>25</value>
-						</greater-than-equals>
-						<greater-than-equals>
-							<property>systems/electrical/bus/dc2</property>
-							<value>25</value>
-						</greater-than-equals>
-					</or>
+					<greater-than-equals>
+						<property>systems/electrical/bus/dc-ess</property>
+						<value>25</value>
+					</greater-than-equals>
 				</condition>
 				<command>property-assign</command>
 				<property>ECAM/Lower/page</property>
@@ -1328,16 +1238,10 @@
 			<repeatable type="bool">false</repeatable>
 			<binding>
 				<condition>
-					<or>
-						<greater-than-equals>
-							<property>systems/electrical/bus/dc1</property>
-							<value>25</value>
-						</greater-than-equals>
-						<greater-than-equals>
-							<property>systems/electrical/bus/dc2</property>
-							<value>25</value>
-						</greater-than-equals>
-					</or>
+					<greater-than-equals>
+						<property>systems/electrical/bus/dc-ess</property>
+						<value>25</value>
+					</greater-than-equals>
 				</condition>
 				<command>property-assign</command>
 				<property>ECAM/Lower/page</property>
@@ -1354,16 +1258,10 @@
 			<repeatable type="bool">false</repeatable>
 			<binding>
 				<condition>
-					<or>
-						<greater-than-equals>
-							<property>systems/electrical/bus/dc1</property>
-							<value>25</value>
-						</greater-than-equals>
-						<greater-than-equals>
-							<property>systems/electrical/bus/dc2</property>
-							<value>25</value>
-						</greater-than-equals>
-					</or>
+					<greater-than-equals>
+						<property>systems/electrical/bus/dc-ess</property>
+						<value>25</value>
+					</greater-than-equals>
 				</condition>
 				<command>property-assign</command>
 				<property>ECAM/Lower/page</property>
@@ -1380,16 +1278,10 @@
 			<repeatable type="bool">false</repeatable>
 			<binding>
 				<condition>
-					<or>
-						<greater-than-equals>
-							<property>systems/electrical/bus/dc1</property>
-							<value>25</value>
-						</greater-than-equals>
-						<greater-than-equals>
-							<property>systems/electrical/bus/dc2</property>
-							<value>25</value>
-						</greater-than-equals>
-					</or>
+					<greater-than-equals>
+						<property>systems/electrical/bus/dc-ess</property>
+						<value>25</value>
+					</greater-than-equals>
 				</condition>
 				<command>property-assign</command>
 				<property>ECAM/Lower/page</property>
@@ -1406,16 +1298,10 @@
 			<repeatable type="bool">false</repeatable>
 			<binding>
 				<condition>
-					<or>
-						<greater-than-equals>
-							<property>systems/electrical/bus/dc1</property>
-							<value>25</value>
-						</greater-than-equals>
-						<greater-than-equals>
-							<property>systems/electrical/bus/dc2</property>
-							<value>25</value>
-						</greater-than-equals>
-					</or>
+					<greater-than-equals>
+						<property>systems/electrical/bus/dc-ess</property>
+						<value>25</value>
+					</greater-than-equals>
 				</condition>
 				<command>property-assign</command>
 				<property>ECAM/Lower/page</property>
@@ -1432,16 +1318,10 @@
 			<repeatable type="bool">false</repeatable>
 			<binding>
 				<condition>
-					<or>
-						<greater-than-equals>
-							<property>systems/electrical/bus/dc1</property>
-							<value>25</value>
-						</greater-than-equals>
-						<greater-than-equals>
-							<property>systems/electrical/bus/dc2</property>
-							<value>25</value>
-						</greater-than-equals>
-					</or>
+					<greater-than-equals>
+						<property>systems/electrical/bus/dc-ess</property>
+						<value>25</value>
+					</greater-than-equals>
 				</condition>
 				<command>property-assign</command>
 				<property>ECAM/Lower/page</property>
@@ -1458,16 +1338,10 @@
 			<repeatable type="bool">false</repeatable>
 			<binding>
 				<condition>
-					<or>
-						<greater-than-equals>
-							<property>systems/electrical/bus/dc1</property>
-							<value>25</value>
-						</greater-than-equals>
-						<greater-than-equals>
-							<property>systems/electrical/bus/dc2</property>
-							<value>25</value>
-						</greater-than-equals>
-					</or>
+					<greater-than-equals>
+						<property>systems/electrical/bus/dc-ess</property>
+						<value>25</value>
+					</greater-than-equals>
 				</condition>
 				<command>property-assign</command>
 				<property>ECAM/Lower/page</property>
@@ -1583,16 +1457,10 @@
 			<repeatable type="bool">false</repeatable>
 			<binding>
 				<condition>
-					<or>
-						<greater-than-equals>
-							<property>systems/electrical/bus/dc1</property>
-							<value>25</value>
-						</greater-than-equals>
-						<greater-than-equals>
-							<property>systems/electrical/bus/dc2</property>
-							<value>25</value>
-						</greater-than-equals>
-					</or>
+					<greater-than-equals>
+						<property>systems/electrical/bus/dc-ess</property>
+						<value>25</value>
+					</greater-than-equals>
 				</condition>
 				<command>nasal</command>
 				<script>
@@ -1618,16 +1486,10 @@
 							<property>modes/altimeter/std</property>
 							<value>0</value>
 						</equals>
-						<or>
-							<greater-than-equals>
-								<property>systems/electrical/bus/dc1</property>
-								<value>25</value>
-							</greater-than-equals>
-							<greater-than-equals>
-								<property>systems/electrical/bus/dc2</property>
-								<value>25</value>
-							</greater-than-equals>
-						</or>
+						<greater-than-equals>
+							<property>systems/electrical/bus/dc-ess</property>
+							<value>25</value>
+						</greater-than-equals>
 					</and>
 				</condition>
 			</binding>
@@ -1646,16 +1508,10 @@
 							<property>modes/altimeter/std</property>
 							<value>0</value>
 						</equals>
-						<or>
-							<greater-than-equals>
-								<property>systems/electrical/bus/dc1</property>
-								<value>25</value>
-							</greater-than-equals>
-							<greater-than-equals>
-								<property>systems/electrical/bus/dc2</property>
-								<value>25</value>
-							</greater-than-equals>
-						</or>
+						<greater-than-equals>
+							<property>systems/electrical/bus/dc-ess</property>
+							<value>25</value>
+						</greater-than-equals>
 					</and>
 				</condition>
 			</binding>
@@ -1686,16 +1542,10 @@
 							<property>modes/altimeter/std</property>
 							<value>0</value>
 						</equals>
-						<or>
-							<greater-than-equals>
-								<property>systems/electrical/bus/dc1</property>
-								<value>25</value>
-							</greater-than-equals>
-							<greater-than-equals>
-								<property>systems/electrical/bus/dc2</property>
-								<value>25</value>
-							</greater-than-equals>
-						</or>
+						<greater-than-equals>
+							<property>systems/electrical/bus/dc-ess</property>
+							<value>25</value>
+						</greater-than-equals>
 					</and>
 				</condition>
 			</binding>
@@ -1714,16 +1564,10 @@
 							<property>modes/altimeter/std</property>
 							<value>0</value>
 						</equals>
-						<or>
-							<greater-than-equals>
-								<property>systems/electrical/bus/dc1</property>
-								<value>25</value>
-							</greater-than-equals>
-							<greater-than-equals>
-								<property>systems/electrical/bus/dc2</property>
-								<value>25</value>
-							</greater-than-equals>
-						</or>
+						<greater-than-equals>
+							<property>systems/electrical/bus/dc-ess</property>
+							<value>25</value>
+						</greater-than-equals>
 					</and>
 				</condition>
 			</binding>
@@ -2078,16 +1922,10 @@
 			<repeatable type="bool">false</repeatable>
 			<binding>
 				<condition>
-					<or>
-						<greater-than-equals>
-							<property>systems/electrical/bus/dc1</property>
-							<value>25</value>
-						</greater-than-equals>
-						<greater-than-equals>
-							<property>systems/electrical/bus/dc2</property>
-							<value>25</value>
-						</greater-than-equals>
-					</or>
+					<greater-than-equals>
+						<property>systems/electrical/bus/dc-ess</property>
+						<value>25</value>
+					</greater-than-equals>
 				</condition>
 				<command>property-toggle</command>
 				<property>it-autoflight/input/fd1</property>
@@ -2119,16 +1957,10 @@
 			<repeatable type="bool">false</repeatable>
 			<binding>
 				<condition>
-					<or>
-						<greater-than-equals>
-							<property>systems/electrical/bus/dc1</property>
-							<value>25</value>
-						</greater-than-equals>
-						<greater-than-equals>
-							<property>systems/electrical/bus/dc2</property>
-							<value>25</value>
-						</greater-than-equals>
-					</or>
+					<greater-than-equals>
+						<property>systems/electrical/bus/dc-ess</property>
+						<value>25</value>
+					</greater-than-equals>
 				</condition>
 				<command>property-toggle</command>
 				<property>modes/pfd/ILS1</property>
@@ -2160,16 +1992,10 @@
 			<repeatable type="bool">false</repeatable>
 			<binding>
 				<condition>
-					<or>
-						<greater-than-equals>
-							<property>systems/electrical/bus/dc1</property>
-							<value>25</value>
-						</greater-than-equals>
-						<greater-than-equals>
-							<property>systems/electrical/bus/dc2</property>
-							<value>25</value>
-						</greater-than-equals>
-					</or>
+					<greater-than-equals>
+						<property>systems/electrical/bus/dc-ess</property>
+						<value>25</value>
+					</greater-than-equals>
 				</condition>
 				<command>property-toggle</command>
 				<property>modes/pfd/ILS2</property>
@@ -2201,16 +2027,10 @@
 			<repeatable type="bool">false</repeatable>
 			<binding>
 				<condition>
-					<or>
-						<greater-than-equals>
-							<property>systems/electrical/bus/dc1</property>
-							<value>25</value>
-						</greater-than-equals>
-						<greater-than-equals>
-							<property>systems/electrical/bus/dc2</property>
-							<value>25</value>
-						</greater-than-equals>
-					</or>
+					<greater-than-equals>
+						<property>systems/electrical/bus/dc-ess</property>
+						<value>25</value>
+					</greater-than-equals>
 				</condition>
 				<command>property-toggle</command>
 				<property>it-autoflight/input/fd2</property>
@@ -2243,16 +2063,10 @@
 			<repeatable type="bool">false</repeatable>
 			<binding>
 				<condition>
-					<or>
-						<greater-than-equals>
-							<property>systems/electrical/bus/dc1</property>
-							<value>25</value>
-						</greater-than-equals>
-						<greater-than-equals>
-							<property>systems/electrical/bus/dc2</property>
-							<value>25</value>
-						</greater-than-equals>
-					</or>
+					<greater-than-equals>
+						<property>systems/electrical/bus/dc-ess</property>
+						<value>25</value>
+					</greater-than-equals>
 				</condition>
 				<command>nasal</command>
 				<script>
@@ -2291,16 +2105,10 @@
 			<repeatable type="bool">false</repeatable>
 			<binding>
 				<condition>
-					<or>
-						<greater-than-equals>
-							<property>systems/electrical/bus/dc1</property>
-							<value>25</value>
-						</greater-than-equals>
-						<greater-than-equals>
-							<property>systems/electrical/bus/dc2</property>
-							<value>25</value>
-						</greater-than-equals>
-					</or>
+					<greater-than-equals>
+						<property>systems/electrical/bus/dc-ess</property>
+						<value>25</value>
+					</greater-than-equals>
 				</condition>
 				<command>nasal</command>
 				<script>
@@ -2339,16 +2147,10 @@
 			<repeatable type="bool">false</repeatable>
 			<binding>
 				<condition>
-					<or>
-						<greater-than-equals>
-							<property>systems/electrical/bus/dc1</property>
-							<value>25</value>
-						</greater-than-equals>
-						<greater-than-equals>
-							<property>systems/electrical/bus/dc2</property>
-							<value>25</value>
-						</greater-than-equals>
-					</or>
+					<greater-than-equals>
+						<property>systems/electrical/bus/dc-ess</property>
+						<value>25</value>
+					</greater-than-equals>
 				</condition>
 				<command>nasal</command>
 				<script>
@@ -2387,16 +2189,10 @@
 			<repeatable type="bool">false</repeatable>
 			<binding>
 				<condition>
-					<or>
-						<greater-than-equals>
-							<property>systems/electrical/bus/dc1</property>
-							<value>25</value>
-						</greater-than-equals>
-						<greater-than-equals>
-							<property>systems/electrical/bus/dc2</property>
-							<value>25</value>
-						</greater-than-equals>
-					</or>
+					<greater-than-equals>
+						<property>systems/electrical/bus/dc-ess</property>
+						<value>25</value>
+					</greater-than-equals>
 				</condition>
 				<command>nasal</command>
 				<script>
@@ -2435,16 +2231,10 @@
 			<repeatable type="bool">false</repeatable>
 			<binding>
 				<condition>
-					<or>
-						<greater-than-equals>
-							<property>systems/electrical/bus/dc1</property>
-							<value>25</value>
-						</greater-than-equals>
-						<greater-than-equals>
-							<property>systems/electrical/bus/dc2</property>
-							<value>25</value>
-						</greater-than-equals>
-					</or>
+					<greater-than-equals>
+						<property>systems/electrical/bus/dc-ess</property>
+						<value>25</value>
+					</greater-than-equals>
 				</condition>
 				<command>nasal</command>
 				<script>
@@ -2483,16 +2273,10 @@
 			<repeatable type="bool">false</repeatable>
 			<binding>
 				<condition>
-					<or>
-						<greater-than-equals>
-							<property>systems/electrical/bus/dc1</property>
-							<value>25</value>
-						</greater-than-equals>
-						<greater-than-equals>
-							<property>systems/electrical/bus/dc2</property>
-							<value>25</value>
-						</greater-than-equals>
-					</or>
+					<greater-than-equals>
+						<property>systems/electrical/bus/dc-ess</property>
+						<value>25</value>
+					</greater-than-equals>
 				</condition>
 				<command>nasal</command>
 				<script>
@@ -2531,16 +2315,10 @@
 			<repeatable type="bool">false</repeatable>
 			<binding>
 				<condition>
-					<or>
-						<greater-than-equals>
-							<property>systems/electrical/bus/dc1</property>
-							<value>25</value>
-						</greater-than-equals>
-						<greater-than-equals>
-							<property>systems/electrical/bus/dc2</property>
-							<value>25</value>
-						</greater-than-equals>
-					</or>
+					<greater-than-equals>
+						<property>systems/electrical/bus/dc-ess</property>
+						<value>25</value>
+					</greater-than-equals>
 				</condition>
 				<command>nasal</command>
 				<script>
@@ -2579,16 +2357,10 @@
 			<repeatable type="bool">false</repeatable>
 			<binding>
 				<condition>
-					<or>
-						<greater-than-equals>
-							<property>systems/electrical/bus/dc1</property>
-							<value>25</value>
-						</greater-than-equals>
-						<greater-than-equals>
-							<property>systems/electrical/bus/dc2</property>
-							<value>25</value>
-						</greater-than-equals>
-					</or>
+					<greater-than-equals>
+						<property>systems/electrical/bus/dc-ess</property>
+						<value>25</value>
+					</greater-than-equals>
 				</condition>
 				<command>nasal</command>
 				<script>
@@ -2627,16 +2399,10 @@
 			<repeatable type="bool">false</repeatable>
 			<binding>
 				<condition>
-					<or>
-						<greater-than-equals>
-							<property>systems/electrical/bus/dc1</property>
-							<value>25</value>
-						</greater-than-equals>
-						<greater-than-equals>
-							<property>systems/electrical/bus/dc2</property>
-							<value>25</value>
-						</greater-than-equals>
-					</or>
+					<greater-than-equals>
+						<property>systems/electrical/bus/dc-ess</property>
+						<value>25</value>
+					</greater-than-equals>
 				</condition>
 				<command>nasal</command>
 				<script>
@@ -2675,16 +2441,10 @@
 			<repeatable type="bool">false</repeatable>
 			<binding>
 				<condition>
-					<or>
-						<greater-than-equals>
-							<property>systems/electrical/bus/dc1</property>
-							<value>25</value>
-						</greater-than-equals>
-						<greater-than-equals>
-							<property>systems/electrical/bus/dc2</property>
-							<value>25</value>
-						</greater-than-equals>
-					</or>
+					<greater-than-equals>
+						<property>systems/electrical/bus/dc-ess</property>
+						<value>25</value>
+					</greater-than-equals>
 				</condition>
 				<command>nasal</command>
 				<script>
diff --git a/Models/Instruments/OHpanel/OHpanel.xml b/Models/Instruments/OHpanel/OHpanel.xml
index ea2f154a..486db82c 100644
--- a/Models/Instruments/OHpanel/OHpanel.xml
+++ b/Models/Instruments/OHpanel/OHpanel.xml
@@ -21,6 +21,12 @@
 		<object-name>ACPack1Btn2O</object-name>
 		<object-name>ACPack2Btn1F</object-name>
 		<object-name>ACPack2Btn2O</object-name>
+		<object-name>ADR1Btn1F</object-name>
+		<object-name>ADR1Btn2O</object-name>
+		<object-name>ADR2Btn1F</object-name>
+		<object-name>ADR2Btn2O</object-name>
+		<object-name>ADR3Btn1F</object-name>
+		<object-name>ADR3Btn2O</object-name>
 		<object-name>APUBleedBtn1F</object-name>
 		<object-name>APUBleedBtn2O</object-name>
 		<object-name>APUFireAgtBtn1S</object-name>
@@ -51,6 +57,13 @@
 		<object-name>Gen1Btn2O</object-name>
 		<object-name>Gen2Btn1F</object-name>
 		<object-name>Gen2Btn2O</object-name>
+		<object-name>IR1Btn1F</object-name>
+		<object-name>IR1Btn2A</object-name>
+		<object-name>IR2Btn1F</object-name>
+		<object-name>IR2Btn2A</object-name>
+		<object-name>IR3Btn1F</object-name>
+		<object-name>IR3Btn2A</object-name>
+		<object-name>IrsOnBatLightOB</object-name>
 		<object-name>RamAirBtn2O</object-name>
 		<condition>
 			<or>
@@ -63,11 +76,7 @@
 					<value>120</value>
 				</greater-than-equals>
 				<greater-than-equals>
-					<property>systems/electrical/bus/dc1</property>
-					<value>25</value>
-				</greater-than-equals>
-				<greater-than-equals>
-					<property>systems/electrical/bus/dc2</property>
+					<property>systems/electrical/bus/dc-ess</property>
 					<value>25</value>
 				</greater-than-equals>
 			</or>
@@ -76,12 +85,6 @@
 	
 	<animation>
 		<type>select</type>
-		<object-name>ADR1Btn1F</object-name>
-		<object-name>ADR1Btn2O</object-name>
-		<object-name>ADR2Btn1F</object-name>
-		<object-name>ADR2Btn2O</object-name>
-		<object-name>ADR3Btn1F</object-name>
-		<object-name>ADR3Btn2O</object-name>
 		<object-name>AftCargoIsoBtn1F</object-name>
 		<object-name>AftCargoIsoBtn2O</object-name>
 		<object-name>AftCargoSmkBtn1S</object-name>
@@ -144,17 +147,10 @@
 		<object-name>HotAirBtn2O</object-name>
 		<object-name>IDG1Btn1F</object-name>
 		<object-name>IDG2Btn1F</object-name>
-		<object-name>IR1Btn1F</object-name>
-		<object-name>IR1Btn2A</object-name>
-		<object-name>IR2Btn1F</object-name>
-		<object-name>IR2Btn2A</object-name>
-		<object-name>IR3Btn1F</object-name>
-		<object-name>IR3Btn2A</object-name>
 		<object-name>LFuelTank1Btn1F</object-name>
 		<object-name>LFuelTank1Btn2O</object-name>
 		<object-name>LFuelTank2Btn1F</object-name>
 		<object-name>LFuelTank2Btn2O</object-name>
-		<object-name>IrsOnBatLightOB</object-name>
 		<object-name>PassOxyInd1S</object-name>
 		<object-name>PrbWinHeatBtn2O</object-name>
 		<object-name>PTU1F</object-name>
@@ -182,16 +178,10 @@
 		<object-name>YellowEngPump1F</object-name>
 		<object-name>YellowEngPump2O</object-name>
 		<condition>
-			<or>
-				<greater-than-equals>
-					<property>systems/electrical/bus/dc1</property>
-					<value>25</value>
-				</greater-than-equals>
-				<greater-than-equals>
-					<property>systems/electrical/bus/dc2</property>
-					<value>25</value>
-				</greater-than-equals>
-			</or>
+			<greater-than-equals>
+				<property>systems/electrical/bus/dc-ess</property>
+				<value>25</value>
+			</greater-than-equals>
 		</condition>
 	</animation>
 	
@@ -326,16 +316,10 @@
 			<repeatable>false</repeatable>
 			<binding>
 				<condition>
-					<or>
-						<greater-than-equals>
-							<property>systems/electrical/bus/dc1</property>
-							<value>25</value>
-						</greater-than-equals>
-						<greater-than-equals>
-							<property>systems/electrical/bus/dc2</property>
-							<value>25</value>
-						</greater-than-equals>
-					</or>
+					<greater-than-equals>
+						<property>systems/electrical/bus/dc-ess</property>
+						<value>25</value>
+					</greater-than-equals>
 				</condition>
 				<command>property-assign</command>
 				<property>controls/fire/cargo/test</property>
@@ -360,16 +344,10 @@
 							<property>controls/OH/protectors/fwddisch</property>
 							<value>1</value>
 						</equals>
-						<or>
-							<greater-than-equals>
-								<property>systems/electrical/bus/dc1</property>
-								<value>25</value>
-							</greater-than-equals>
-							<greater-than-equals>
-								<property>systems/electrical/bus/dc2</property>
-								<value>25</value>
-							</greater-than-equals>
-						</or>
+						<greater-than-equals>
+							<property>systems/electrical/bus/dc-ess</property>
+							<value>25</value>
+						</greater-than-equals>
 					</and>
 				</condition>
 				<command>property-assign</command>
@@ -401,16 +379,10 @@
 							<property>controls/OH/protectors/aftdisch</property>
 							<value>1</value>
 						</equals>
-						<or>
-							<greater-than-equals>
-								<property>systems/electrical/bus/dc1</property>
-								<value>25</value>
-							</greater-than-equals>
-							<greater-than-equals>
-								<property>systems/electrical/bus/dc2</property>
-								<value>25</value>
-							</greater-than-equals>
-						</or>
+						<greater-than-equals>
+							<property>systems/electrical/bus/dc-ess</property>
+							<value>25</value>
+						</greater-than-equals>
 					</and>
 				</condition>
 				<command>property-assign</command>
@@ -809,16 +781,10 @@
 			<repeatable>false</repeatable>
 			<binding>
 				<condition>
-					<or>
-						<greater-than-equals>
-							<property>systems/electrical/bus/dc1</property>
-							<value>25</value>
-						</greater-than-equals>
-						<greater-than-equals>
-							<property>systems/electrical/bus/dc2</property>
-							<value>25</value>
-						</greater-than-equals>
-					</or>
+					<greater-than-equals>
+						<property>systems/electrical/bus/dc-ess</property>
+						<value>25</value>
+					</greater-than-equals>
 				</condition>
 				<command>property-toggle</command>
 				<property>controls/adirs/adr[0]/off</property>
@@ -876,16 +842,10 @@
 			<repeatable>false</repeatable>
 			<binding>
 				<condition>
-					<or>
-						<greater-than-equals>
-							<property>systems/electrical/bus/dc1</property>
-							<value>25</value>
-						</greater-than-equals>
-						<greater-than-equals>
-							<property>systems/electrical/bus/dc2</property>
-							<value>25</value>
-						</greater-than-equals>
-					</or>
+					<greater-than-equals>
+						<property>systems/electrical/bus/dc-ess</property>
+						<value>25</value>
+					</greater-than-equals>
 				</condition>
 				<command>property-toggle</command>
 				<property>controls/adirs/adr[1]/off</property>
@@ -943,16 +903,10 @@
 			<repeatable>false</repeatable>
 			<binding>
 				<condition>
-					<or>
-						<greater-than-equals>
-							<property>systems/electrical/bus/dc1</property>
-							<value>25</value>
-						</greater-than-equals>
-						<greater-than-equals>
-							<property>systems/electrical/bus/dc2</property>
-							<value>25</value>
-						</greater-than-equals>
-					</or>
+					<greater-than-equals>
+						<property>systems/electrical/bus/dc-ess</property>
+						<value>25</value>
+					</greater-than-equals>
 				</condition>
 				<command>property-toggle</command>
 				<property>controls/adirs/adr[2]/off</property>
@@ -1022,16 +976,10 @@
 			<repeatable>false</repeatable>
 			<binding>
 				<condition>
-					<or>
-						<greater-than-equals>
-							<property>systems/electrical/bus/dc1</property>
-							<value>25</value>
-						</greater-than-equals>
-						<greater-than-equals>
-							<property>systems/electrical/bus/dc2</property>
-							<value>25</value>
-						</greater-than-equals>
-					</or>
+					<greater-than-equals>
+						<property>systems/electrical/bus/dc-ess</property>
+						<value>25</value>
+					</greater-than-equals>
 				</condition>
 				<command>property-toggle</command>
 				<property>controls/fctl/elac1</property>
@@ -1095,16 +1043,10 @@
 			<repeatable>false</repeatable>
 			<binding>
 				<condition>
-					<or>
-						<greater-than-equals>
-							<property>systems/electrical/bus/dc1</property>
-							<value>25</value>
-						</greater-than-equals>
-						<greater-than-equals>
-							<property>systems/electrical/bus/dc2</property>
-							<value>25</value>
-						</greater-than-equals>
-					</or>
+					<greater-than-equals>
+						<property>systems/electrical/bus/dc-ess</property>
+						<value>25</value>
+					</greater-than-equals>
 				</condition>
 				<command>property-toggle</command>
 				<property>controls/fctl/sec1</property>
@@ -1168,16 +1110,10 @@
 			<repeatable>false</repeatable>
 			<binding>
 				<condition>
-					<or>
-						<greater-than-equals>
-							<property>systems/electrical/bus/dc1</property>
-							<value>25</value>
-						</greater-than-equals>
-						<greater-than-equals>
-							<property>systems/electrical/bus/dc2</property>
-							<value>25</value>
-						</greater-than-equals>
-					</or>
+					<greater-than-equals>
+						<property>systems/electrical/bus/dc-ess</property>
+						<value>25</value>
+					</greater-than-equals>
 				</condition>
 				<command>property-toggle</command>
 				<property>controls/fctl/fac1</property>
@@ -1241,16 +1177,10 @@
 			<repeatable>false</repeatable>
 			<binding>
 				<condition>
-					<or>
-						<greater-than-equals>
-							<property>systems/electrical/bus/dc1</property>
-							<value>25</value>
-						</greater-than-equals>
-						<greater-than-equals>
-							<property>systems/electrical/bus/dc2</property>
-							<value>25</value>
-						</greater-than-equals>
-					</or>
+					<greater-than-equals>
+						<property>systems/electrical/bus/dc-ess</property>
+						<value>25</value>
+					</greater-than-equals>
 				</condition>
 				<command>property-toggle</command>
 				<property>controls/fctl/elac2</property>
@@ -1314,16 +1244,10 @@
 			<repeatable>false</repeatable>
 			<binding>
 				<condition>
-					<or>
-						<greater-than-equals>
-							<property>systems/electrical/bus/dc1</property>
-							<value>25</value>
-						</greater-than-equals>
-						<greater-than-equals>
-							<property>systems/electrical/bus/dc2</property>
-							<value>25</value>
-						</greater-than-equals>
-					</or>
+					<greater-than-equals>
+						<property>systems/electrical/bus/dc-ess</property>
+						<value>25</value>
+					</greater-than-equals>
 				</condition>
 				<command>property-toggle</command>
 				<property>controls/fctl/sec2</property>
@@ -1387,16 +1311,10 @@
 			<repeatable>false</repeatable>
 			<binding>
 				<condition>
-					<or>
-						<greater-than-equals>
-							<property>systems/electrical/bus/dc1</property>
-							<value>25</value>
-						</greater-than-equals>
-						<greater-than-equals>
-							<property>systems/electrical/bus/dc2</property>
-							<value>25</value>
-						</greater-than-equals>
-					</or>
+					<greater-than-equals>
+						<property>systems/electrical/bus/dc-ess</property>
+						<value>25</value>
+					</greater-than-equals>
 				</condition>
 				<command>property-toggle</command>
 				<property>controls/fctl/sec3</property>
@@ -1460,16 +1378,10 @@
 			<repeatable>false</repeatable>
 			<binding>
 				<condition>
-					<or>
-						<greater-than-equals>
-							<property>systems/electrical/bus/dc1</property>
-							<value>25</value>
-						</greater-than-equals>
-						<greater-than-equals>
-							<property>systems/electrical/bus/dc2</property>
-							<value>25</value>
-						</greater-than-equals>
-					</or>
+					<greater-than-equals>
+						<property>systems/electrical/bus/dc-ess</property>
+						<value>25</value>
+					</greater-than-equals>
 				</condition>
 				<command>property-toggle</command>
 				<property>controls/fctl/fac2</property>
@@ -1534,16 +1446,10 @@
 			<repeatable>false</repeatable>
 			<binding>
 				<condition>
-					<or>
-						<greater-than-equals>
-							<property>systems/electrical/bus/dc1</property>
-							<value>25</value>
-						</greater-than-equals>
-						<greater-than-equals>
-							<property>systems/electrical/bus/dc2</property>
-							<value>25</value>
-						</greater-than-equals>
-					</or>
+					<greater-than-equals>
+						<property>systems/electrical/bus/dc-ess</property>
+						<value>25</value>
+					</greater-than-equals>
 				</condition>
 				<command>property-toggle</command>
 				<property>instrumentation/mk-viii/inputs/discretes/terr-inhibit</property>
@@ -1607,16 +1513,10 @@
 			<repeatable>false</repeatable>
 			<binding>
 				<condition>
-					<or>
-						<greater-than-equals>
-							<property>systems/electrical/bus/dc1</property>
-							<value>25</value>
-						</greater-than-equals>
-						<greater-than-equals>
-							<property>systems/electrical/bus/dc2</property>
-							<value>25</value>
-						</greater-than-equals>
-					</or>
+					<greater-than-equals>
+						<property>systems/electrical/bus/dc-ess</property>
+						<value>25</value>
+					</greater-than-equals>
 				</condition>
 				<command>property-toggle</command>
 				<property>instrumentation/mk-viii/inputs/discretes/gpws-inhibit</property>
@@ -1679,16 +1579,10 @@
 			<repeatable>false</repeatable>
 			<binding>
 				<condition>
-					<or>
-						<greater-than-equals>
-							<property>systems/electrical/bus/dc1</property>
-							<value>25</value>
-						</greater-than-equals>
-						<greater-than-equals>
-							<property>systems/electrical/bus/dc2</property>
-							<value>25</value>
-						</greater-than-equals>
-					</or>
+					<greater-than-equals>
+						<property>systems/electrical/bus/dc-ess</property>
+						<value>25</value>
+					</greater-than-equals>
 				</condition>
 				<command>property-toggle</command>
 				<property>instrumentation/mk-viii/inputs/discretes/glideslope-cancel</property>
@@ -1728,16 +1622,10 @@
 			<repeatable>false</repeatable>
 			<binding>
 				<condition>
-					<or>
-						<greater-than-equals>
-							<property>systems/electrical/bus/dc1</property>
-							<value>25</value>
-						</greater-than-equals>
-						<greater-than-equals>
-							<property>systems/electrical/bus/dc2</property>
-							<value>25</value>
-						</greater-than-equals>
-					</or>
+					<greater-than-equals>
+						<property>systems/electrical/bus/dc-ess</property>
+						<value>25</value>
+					</greater-than-equals>
 				</condition>
 				<command>property-toggle</command>
 				<property>instrumentation/mk-viii/inputs/discretes/momentary-flap-all-override</property>
@@ -1777,16 +1665,10 @@
 			<repeatable>false</repeatable>
 			<binding>
 				<condition>
-					<or>
-						<greater-than-equals>
-							<property>systems/electrical/bus/dc1</property>
-							<value>25</value>
-						</greater-than-equals>
-						<greater-than-equals>
-							<property>systems/electrical/bus/dc2</property>
-							<value>25</value>
-						</greater-than-equals>
-					</or>
+					<greater-than-equals>
+						<property>systems/electrical/bus/dc-ess</property>
+						<value>25</value>
+					</greater-than-equals>
 				</condition>
 				<command>property-toggle</command>
 				<property>instrumentation/mk-viii/inputs/discretes/momentary-flap-3-override</property>
@@ -1828,16 +1710,10 @@
 			<repeatable>false</repeatable>
 			<binding>
 				<condition>
-					<or>
-						<greater-than-equals>
-							<property>systems/electrical/bus/dc1</property>
-							<value>25</value>
-						</greater-than-equals>
-						<greater-than-equals>
-							<property>systems/electrical/bus/dc2</property>
-							<value>25</value>
-						</greater-than-equals>
-					</or>
+					<greater-than-equals>
+						<property>systems/electrical/bus/dc-ess</property>
+						<value>25</value>
+					</greater-than-equals>
 				</condition>
 				<command>property-toggle</command>
 				<property>controls/hydraulic/eng1-pump</property>
@@ -1913,11 +1789,7 @@
 								<value>120</value>
 							</greater-than-equals>
 							<greater-than-equals>
-								<property>systems/electrical/bus/dc1</property>
-								<value>25</value>
-							</greater-than-equals>
-							<greater-than-equals>
-								<property>systems/electrical/bus/dc2</property>
+								<property>systems/electrical/bus/dc-ess</property>
 								<value>25</value>
 							</greater-than-equals>
 						</or>
@@ -1990,16 +1862,10 @@
 			<repeatable>false</repeatable>
 			<binding>
 				<condition>
-					<or>
-						<greater-than-equals>
-							<property>systems/electrical/bus/dc1</property>
-							<value>25</value>
-						</greater-than-equals>
-						<greater-than-equals>
-							<property>systems/electrical/bus/dc2</property>
-							<value>25</value>
-						</greater-than-equals>
-					</or>
+					<greater-than-equals>
+						<property>systems/electrical/bus/dc-ess</property>
+						<value>25</value>
+					</greater-than-equals>
 				</condition>
 				<command>property-toggle</command>
 				<property>controls/hydraulic/elec-pump-blue</property>
@@ -2063,16 +1929,10 @@
 			<repeatable>false</repeatable>
 			<binding>
 				<condition>
-					<or>
-						<greater-than-equals>
-							<property>systems/electrical/bus/dc1</property>
-							<value>25</value>
-						</greater-than-equals>
-						<greater-than-equals>
-							<property>systems/electrical/bus/dc2</property>
-							<value>25</value>
-						</greater-than-equals>
-					</or>
+					<greater-than-equals>
+						<property>systems/electrical/bus/dc-ess</property>
+						<value>25</value>
+					</greater-than-equals>
 				</condition>
 				<command>property-toggle</command>
 				<property>controls/hydraulic/ptu</property>
@@ -2136,16 +1996,10 @@
 			<repeatable>false</repeatable>
 			<binding>
 				<condition>
-					<or>
-						<greater-than-equals>
-							<property>systems/electrical/bus/dc1</property>
-							<value>25</value>
-						</greater-than-equals>
-						<greater-than-equals>
-							<property>systems/electrical/bus/dc2</property>
-							<value>25</value>
-						</greater-than-equals>
-					</or>
+					<greater-than-equals>
+						<property>systems/electrical/bus/dc-ess</property>
+						<value>25</value>
+					</greater-than-equals>
 				</condition>
 				<command>property-toggle</command>
 				<property>controls/hydraulic/eng2-pump</property>
@@ -2209,16 +2063,10 @@
 			<repeatable>false</repeatable>
 			<binding>
 				<condition>
-					<or>
-						<greater-than-equals>
-							<property>systems/electrical/bus/dc1</property>
-							<value>25</value>
-						</greater-than-equals>
-						<greater-than-equals>
-							<property>systems/electrical/bus/dc2</property>
-							<value>25</value>
-						</greater-than-equals>
-					</or>
+					<greater-than-equals>
+						<property>systems/electrical/bus/dc-ess</property>
+						<value>25</value>
+					</greater-than-equals>
 				</condition>
 				<command>property-toggle</command>
 				<property>controls/hydraulic/elec-pump-yellow</property>
@@ -2283,16 +2131,10 @@
 			<repeatable>false</repeatable>
 			<binding>
 				<condition>
-					<or>
-						<greater-than-equals>
-							<property>systems/electrical/bus/dc1</property>
-							<value>25</value>
-						</greater-than-equals>
-						<greater-than-equals>
-							<property>systems/electrical/bus/dc2</property>
-							<value>25</value>
-						</greater-than-equals>
-					</or>
+					<greater-than-equals>
+						<property>systems/electrical/bus/dc-ess</property>
+						<value>25</value>
+					</greater-than-equals>
 				</condition>
 				<command>property-toggle</command>
 				<property>controls/fuel/x-feed</property>
@@ -2348,16 +2190,10 @@
 			<repeatable>false</repeatable>
 			<binding>
 				<condition>
-					<or>
-						<greater-than-equals>
-							<property>systems/electrical/bus/dc1</property>
-							<value>25</value>
-						</greater-than-equals>
-						<greater-than-equals>
-							<property>systems/electrical/bus/dc2</property>
-							<value>25</value>
-						</greater-than-equals>
-					</or>
+					<greater-than-equals>
+						<property>systems/electrical/bus/dc-ess</property>
+						<value>25</value>
+					</greater-than-equals>
 				</condition>
 				<command>property-toggle</command>
 				<property>controls/fuel/tank0pump1</property>
@@ -2419,16 +2255,10 @@
 			<repeatable>false</repeatable>
 			<binding>
 				<condition>
-					<or>
-						<greater-than-equals>
-							<property>systems/electrical/bus/dc1</property>
-							<value>25</value>
-						</greater-than-equals>
-						<greater-than-equals>
-							<property>systems/electrical/bus/dc2</property>
-							<value>25</value>
-						</greater-than-equals>
-					</or>
+					<greater-than-equals>
+						<property>systems/electrical/bus/dc-ess</property>
+						<value>25</value>
+					</greater-than-equals>
 				</condition>
 				<command>property-toggle</command>
 				<property>controls/fuel/tank0pump2</property>
@@ -2490,16 +2320,10 @@
 			<repeatable>false</repeatable>
 			<binding>
 				<condition>
-					<or>
-						<greater-than-equals>
-							<property>systems/electrical/bus/dc1</property>
-							<value>25</value>
-						</greater-than-equals>
-						<greater-than-equals>
-							<property>systems/electrical/bus/dc2</property>
-							<value>25</value>
-						</greater-than-equals>
-					</or>
+					<greater-than-equals>
+						<property>systems/electrical/bus/dc-ess</property>
+						<value>25</value>
+					</greater-than-equals>
 				</condition>
 				<command>property-toggle</command>
 				<property>controls/fuel/tank1pump1</property>
@@ -2560,16 +2384,10 @@
 			<repeatable>false</repeatable>
 			<binding>
 				<condition>
-					<or>
-						<greater-than-equals>
-							<property>systems/electrical/bus/dc1</property>
-							<value>25</value>
-						</greater-than-equals>
-						<greater-than-equals>
-							<property>systems/electrical/bus/dc2</property>
-							<value>25</value>
-						</greater-than-equals>
-					</or>
+					<greater-than-equals>
+						<property>systems/electrical/bus/dc-ess</property>
+						<value>25</value>
+					</greater-than-equals>
 				</condition>
 				<command>property-toggle</command>
 				<property>controls/fuel/mode</property>
@@ -2631,16 +2449,10 @@
 			<repeatable>false</repeatable>
 			<binding>
 				<condition>
-					<or>
-						<greater-than-equals>
-							<property>systems/electrical/bus/dc1</property>
-							<value>25</value>
-						</greater-than-equals>
-						<greater-than-equals>
-							<property>systems/electrical/bus/dc2</property>
-							<value>25</value>
-						</greater-than-equals>
-					</or>
+					<greater-than-equals>
+						<property>systems/electrical/bus/dc-ess</property>
+						<value>25</value>
+					</greater-than-equals>
 				</condition>
 				<command>property-toggle</command>
 				<property>controls/fuel/tank1pump2</property>
@@ -2702,16 +2514,10 @@
 			<repeatable>false</repeatable>
 			<binding>
 				<condition>
-					<or>
-						<greater-than-equals>
-							<property>systems/electrical/bus/dc1</property>
-							<value>25</value>
-						</greater-than-equals>
-						<greater-than-equals>
-							<property>systems/electrical/bus/dc2</property>
-							<value>25</value>
-						</greater-than-equals>
-					</or>
+					<greater-than-equals>
+						<property>systems/electrical/bus/dc-ess</property>
+						<value>25</value>
+					</greater-than-equals>
 				</condition>
 				<command>property-toggle</command>
 				<property>controls/fuel/tank2pump1</property>
@@ -2773,16 +2579,10 @@
 			<repeatable>false</repeatable>
 			<binding>
 				<condition>
-					<or>
-						<greater-than-equals>
-							<property>systems/electrical/bus/dc1</property>
-							<value>25</value>
-						</greater-than-equals>
-						<greater-than-equals>
-							<property>systems/electrical/bus/dc2</property>
-							<value>25</value>
-						</greater-than-equals>
-					</or>
+					<greater-than-equals>
+						<property>systems/electrical/bus/dc-ess</property>
+						<value>25</value>
+					</greater-than-equals>
 				</condition>
 				<command>property-toggle</command>
 				<property>controls/fuel/tank2pump2</property>
@@ -2845,16 +2645,10 @@
 			<repeatable>false</repeatable>
 			<binding>
 				<condition>
-					<or>
-						<greater-than-equals>
-							<property>systems/electrical/bus/dc1</property>
-							<value>25</value>
-						</greater-than-equals>
-						<greater-than-equals>
-							<property>systems/electrical/bus/dc2</property>
-							<value>25</value>
-						</greater-than-equals>
-					</or>
+					<greater-than-equals>
+						<property>systems/electrical/bus/dc-ess</property>
+						<value>25</value>
+					</greater-than-equals>
 				</condition>
 				<command>property-toggle</command>
 				<property>controls/electrical/switches/galley</property>
@@ -3039,16 +2833,10 @@
 			<repeatable>false</repeatable>
 			<binding>
 				<condition>
-					<or>
-						<greater-than-equals>
-							<property>systems/electrical/bus/dc1</property>
-							<value>25</value>
-						</greater-than-equals>
-						<greater-than-equals>
-							<property>systems/electrical/bus/dc2</property>
-							<value>25</value>
-						</greater-than-equals>
-					</or>
+					<greater-than-equals>
+						<property>systems/electrical/bus/dc-ess</property>
+						<value>25</value>
+					</greater-than-equals>
 				</condition>
 				<command>property-toggle</command>
 				<property>systems/unused/unused-oh</property>
@@ -3095,11 +2883,7 @@
 							<value>120</value>
 						</greater-than-equals>
 						<greater-than-equals>
-							<property>systems/electrical/bus/dc1</property>
-							<value>25</value>
-						</greater-than-equals>
-						<greater-than-equals>
-							<property>systems/electrical/bus/dc2</property>
+							<property>systems/electrical/bus/dc-ess</property>
 							<value>25</value>
 						</greater-than-equals>
 					</or>
@@ -3175,11 +2959,7 @@
 							<value>120</value>
 						</greater-than-equals>
 						<greater-than-equals>
-							<property>systems/electrical/bus/dc1</property>
-							<value>25</value>
-						</greater-than-equals>
-						<greater-than-equals>
-							<property>systems/electrical/bus/dc2</property>
+							<property>systems/electrical/bus/dc-ess</property>
 							<value>25</value>
 						</greater-than-equals>
 					</or>
@@ -3256,11 +3036,7 @@
 							<value>120</value>
 						</greater-than-equals>
 						<greater-than-equals>
-							<property>systems/electrical/bus/dc1</property>
-							<value>25</value>
-						</greater-than-equals>
-						<greater-than-equals>
-							<property>systems/electrical/bus/dc2</property>
+							<property>systems/electrical/bus/dc-ess</property>
 							<value>25</value>
 						</greater-than-equals>
 					</or>
@@ -3333,11 +3109,7 @@
 							<value>120</value>
 						</greater-than-equals>
 						<greater-than-equals>
-							<property>systems/electrical/bus/dc1</property>
-							<value>25</value>
-						</greater-than-equals>
-						<greater-than-equals>
-							<property>systems/electrical/bus/dc2</property>
+							<property>systems/electrical/bus/dc-ess</property>
 							<value>25</value>
 						</greater-than-equals>
 					</or>
@@ -3419,11 +3191,7 @@
 							<value>120</value>
 						</greater-than-equals>
 						<greater-than-equals>
-							<property>systems/electrical/bus/dc1</property>
-							<value>25</value>
-						</greater-than-equals>
-						<greater-than-equals>
-							<property>systems/electrical/bus/dc2</property>
+							<property>systems/electrical/bus/dc-ess</property>
 							<value>25</value>
 						</greater-than-equals>
 					</or>
@@ -3476,11 +3244,7 @@
 							<value>120</value>
 						</greater-than-equals>
 						<greater-than-equals>
-							<property>systems/electrical/bus/dc1</property>
-							<value>25</value>
-						</greater-than-equals>
-						<greater-than-equals>
-							<property>systems/electrical/bus/dc2</property>
+							<property>systems/electrical/bus/dc-ess</property>
 							<value>25</value>
 						</greater-than-equals>
 					</or>
@@ -3546,16 +3310,10 @@
 			<repeatable>false</repeatable>
 			<binding>
 				<condition>
-					<or>
-						<greater-than-equals>
-							<property>systems/electrical/bus/dc1</property>
-							<value>25</value>
-						</greater-than-equals>
-						<greater-than-equals>
-							<property>systems/electrical/bus/dc2</property>
-							<value>25</value>
-						</greater-than-equals>
-					</or>
+					<greater-than-equals>
+						<property>systems/electrical/bus/dc-ess</property>
+						<value>25</value>
+					</greater-than-equals>
 				</condition>
 				<command>property-toggle</command>
 				<property>systems/unused/unused-oh</property>
@@ -3871,11 +3629,7 @@
 							<value>120</value>
 						</greater-than-equals>
 						<greater-than-equals>
-							<property>systems/electrical/bus/dc1</property>
-							<value>25</value>
-						</greater-than-equals>
-						<greater-than-equals>
-							<property>systems/electrical/bus/dc2</property>
+							<property>systems/electrical/bus/dc-ess</property>
 							<value>25</value>
 						</greater-than-equals>
 					</or>
@@ -3942,16 +3696,10 @@
 			<repeatable>false</repeatable>
 			<binding>
 				<condition>
-					<or>
-						<greater-than-equals>
-							<property>systems/electrical/bus/dc1</property>
-							<value>25</value>
-						</greater-than-equals>
-						<greater-than-equals>
-							<property>systems/electrical/bus/dc2</property>
-							<value>25</value>
-						</greater-than-equals>
-					</or>
+					<greater-than-equals>
+						<property>systems/electrical/bus/dc-ess</property>
+						<value>25</value>
+					</greater-than-equals>
 				</condition>
 				<command>property-toggle</command>
 				<property>controls/pneumatic/switches/bleed1</property>
@@ -4025,11 +3773,7 @@
 							<value>120</value>
 						</greater-than-equals>
 						<greater-than-equals>
-							<property>systems/electrical/bus/dc1</property>
-							<value>25</value>
-						</greater-than-equals>
-						<greater-than-equals>
-							<property>systems/electrical/bus/dc2</property>
+							<property>systems/electrical/bus/dc-ess</property>
 							<value>25</value>
 						</greater-than-equals>
 					</or>
@@ -4096,16 +3840,10 @@
 			<repeatable>false</repeatable>
 			<binding>
 				<condition>
-					<or>
-						<greater-than-equals>
-							<property>systems/electrical/bus/dc1</property>
-							<value>25</value>
-						</greater-than-equals>
-						<greater-than-equals>
-							<property>systems/electrical/bus/dc2</property>
-							<value>25</value>
-						</greater-than-equals>
-					</or>
+					<greater-than-equals>
+						<property>systems/electrical/bus/dc-ess</property>
+						<value>25</value>
+					</greater-than-equals>
 				</condition>
 				<command>property-toggle</command>
 				<property>controls/pneumatic/switches/bleed2</property>
@@ -4168,16 +3906,10 @@
 			<repeatable>false</repeatable>
 			<binding>
 				<condition>
-					<or>
-						<greater-than-equals>
-							<property>systems/electrical/bus/dc1</property>
-							<value>25</value>
-						</greater-than-equals>
-						<greater-than-equals>
-							<property>systems/electrical/bus/dc2</property>
-							<value>25</value>
-						</greater-than-equals>
-					</or>
+					<greater-than-equals>
+						<property>systems/electrical/bus/dc-ess</property>
+						<value>25</value>
+					</greater-than-equals>
 				</condition>
 				<command>property-toggle</command>
 				<property>controls/pneumatic/switches/hot-air</property>
@@ -4251,11 +3983,7 @@
 							<value>120</value>
 						</greater-than-equals>
 						<greater-than-equals>
-							<property>systems/electrical/bus/dc1</property>
-							<value>25</value>
-						</greater-than-equals>
-						<greater-than-equals>
-							<property>systems/electrical/bus/dc2</property>
+							<property>systems/electrical/bus/dc-ess</property>
 							<value>25</value>
 						</greater-than-equals>
 					</or>
@@ -4335,11 +4063,7 @@
 								<value>120</value>
 							</greater-than-equals>
 							<greater-than-equals>
-								<property>systems/electrical/bus/dc1</property>
-								<value>25</value>
-							</greater-than-equals>
-							<greater-than-equals>
-								<property>systems/electrical/bus/dc2</property>
+								<property>systems/electrical/bus/dc-ess</property>
 								<value>25</value>
 							</greater-than-equals>
 						</or>
@@ -4538,16 +4262,10 @@
 			<repeatable>false</repeatable>
 			<binding>
 				<condition>
-					<or>
-						<greater-than-equals>
-							<property>systems/electrical/bus/dc1</property>
-							<value>25</value>
-						</greater-than-equals>
-						<greater-than-equals>
-							<property>systems/electrical/bus/dc2</property>
-							<value>25</value>
-						</greater-than-equals>
-					</or>
+					<greater-than-equals>
+						<property>systems/electrical/bus/dc-ess</property>
+						<value>25</value>
+					</greater-than-equals>
 				</condition>
 				<command>property-toggle</command>
 				<property>systems/pressurization/auto</property>
@@ -4618,11 +4336,7 @@
 								<value>120</value>
 							</greater-than-equals>
 							<greater-than-equals>
-								<property>systems/electrical/bus/dc1</property>
-								<value>25</value>
-							</greater-than-equals>
-							<greater-than-equals>
-								<property>systems/electrical/bus/dc2</property>
+								<property>systems/electrical/bus/dc-ess</property>
 								<value>25</value>
 							</greater-than-equals>
 						</or>
@@ -5118,16 +4832,10 @@
 			<repeatable>false</repeatable>
 			<binding>
 				<condition>
-					<or>
-						<greater-than-equals>
-							<property>systems/electrical/bus/dc1</property>
-							<value>25</value>
-						</greater-than-equals>
-						<greater-than-equals>
-							<property>systems/electrical/bus/dc2</property>
-							<value>25</value>
-						</greater-than-equals>
-					</or>
+					<greater-than-equals>
+						<property>systems/electrical/bus/dc-ess</property>
+						<value>25</value>
+					</greater-than-equals>
 				</condition>
 				<command>property-toggle</command>
 				<property>controls/switches/wing</property>
@@ -5185,16 +4893,10 @@
 			<repeatable>false</repeatable>
 			<binding>
 				<condition>
-					<or>
-						<greater-than-equals>
-							<property>systems/electrical/bus/dc1</property>
-							<value>25</value>
-						</greater-than-equals>
-						<greater-than-equals>
-							<property>systems/electrical/bus/dc2</property>
-							<value>25</value>
-						</greater-than-equals>
-					</or>
+					<greater-than-equals>
+						<property>systems/electrical/bus/dc-ess</property>
+						<value>25</value>
+					</greater-than-equals>
 				</condition>
 				<command>property-toggle</command>
 				<property>controls/switches/leng</property>
@@ -5252,16 +4954,10 @@
 			<repeatable>false</repeatable>
 			<binding>
 				<condition>
-					<or>
-						<greater-than-equals>
-							<property>systems/electrical/bus/dc1</property>
-							<value>25</value>
-						</greater-than-equals>
-						<greater-than-equals>
-							<property>systems/electrical/bus/dc2</property>
-							<value>25</value>
-						</greater-than-equals>
-					</or>
+					<greater-than-equals>
+						<property>systems/electrical/bus/dc-ess</property>
+						<value>25</value>
+					</greater-than-equals>
 				</condition>
 				<command>property-toggle</command>
 				<property>controls/switches/reng</property>
@@ -5321,16 +5017,10 @@
 			<repeatable>false</repeatable>
 			<binding>
 				<condition>
-					<or>
-						<greater-than-equals>
-							<property>systems/electrical/bus/dc1</property>
-							<value>25</value>
-						</greater-than-equals>
-						<greater-than-equals>
-							<property>systems/electrical/bus/dc2</property>
-							<value>25</value>
-						</greater-than-equals>
-					</or>
+					<greater-than-equals>
+						<property>systems/electrical/bus/dc-ess</property>
+						<value>25</value>
+					</greater-than-equals>
 				</condition>
 				<command>property-cycle</command>
 				<property>controls/switches/windowprobeheat</property>
@@ -5372,16 +5062,10 @@
 			<repeatable>false</repeatable>
 			<binding>
 				<condition>
-					<or>
-						<greater-than-equals>
-							<property>systems/electrical/bus/dc1</property>
-							<value>25</value>
-						</greater-than-equals>
-						<greater-than-equals>
-							<property>systems/electrical/bus/dc2</property>
-							<value>25</value>
-						</greater-than-equals>
-					</or>
+					<greater-than-equals>
+						<property>systems/electrical/bus/dc-ess</property>
+						<value>25</value>
+					</greater-than-equals>
 				</condition>
 				<command>property-toggle</command>
 				<property>controls/switches/cabinfan</property>
@@ -5433,11 +5117,7 @@
 							<value>120</value>
 						</greater-than-equals>
 						<greater-than-equals>
-							<property>systems/electrical/bus/dc1</property>
-							<value>25</value>
-						</greater-than-equals>
-						<greater-than-equals>
-							<property>systems/electrical/bus/dc2</property>
+							<property>systems/electrical/bus/dc-ess</property>
 							<value>25</value>
 						</greater-than-equals>
 					</or>
@@ -5508,11 +5188,7 @@
 							<value>120</value>
 						</greater-than-equals>
 						<greater-than-equals>
-							<property>systems/electrical/bus/dc1</property>
-							<value>25</value>
-						</greater-than-equals>
-						<greater-than-equals>
-							<property>systems/electrical/bus/dc2</property>
+							<property>systems/electrical/bus/dc-ess</property>
 							<value>25</value>
 						</greater-than-equals>
 					</or>
@@ -5587,16 +5263,10 @@
 							<property>controls/OH/protectors/eng1-manstart</property>
 							<value>1</value>
 						</equals>
-						<or>
-							<greater-than-equals>
-								<property>systems/electrical/bus/dc1</property>
-								<value>25</value>
-							</greater-than-equals>
-							<greater-than-equals>
-								<property>systems/electrical/bus/dc2</property>
-								<value>25</value>
-							</greater-than-equals>
-						</or>
+						<greater-than-equals>
+							<property>systems/electrical/bus/dc-ess</property>
+							<value>25</value>
+						</greater-than-equals>
 					</and>
 				</condition>
 				<command>property-toggle</command>
@@ -5690,16 +5360,10 @@
 							<property>controls/OH/protectors/eng2-manstart</property>
 							<value>1</value>
 						</equals>
-						<or>
-							<greater-than-equals>
-								<property>systems/electrical/bus/dc1</property>
-								<value>25</value>
-							</greater-than-equals>
-							<greater-than-equals>
-								<property>systems/electrical/bus/dc2</property>
-								<value>25</value>
-							</greater-than-equals>
-						</or>
+						<greater-than-equals>
+							<property>systems/electrical/bus/dc-ess</property>
+							<value>25</value>
+						</greater-than-equals>
 					</and>
 				</condition>
 				<command>property-toggle</command>
@@ -6457,16 +6121,10 @@
 			<repeatable>false</repeatable>
 			<binding>
 				<condition>
-					<or>
-						<greater-than-equals>
-							<property>systems/electrical/bus/dc1</property>
-							<value>25</value>
-						</greater-than-equals>
-						<greater-than-equals>
-							<property>systems/electrical/bus/dc2</property>
-							<value>25</value>
-						</greater-than-equals>
-					</or>
+					<greater-than-equals>
+						<property>systems/electrical/bus/dc-ess</property>
+						<value>25</value>
+					</greater-than-equals>
 				</condition>
 				<command>nasal</command>
 				<script>libraries.CVR_test();</script>
@@ -6482,16 +6140,10 @@
 			<repeatable>false</repeatable>
 			<binding>
 				<condition>
-					<or>
-						<greater-than-equals>
-							<property>systems/electrical/bus/dc1</property>
-							<value>25</value>
-						</greater-than-equals>
-						<greater-than-equals>
-							<property>systems/electrical/bus/dc2</property>
-							<value>25</value>
-						</greater-than-equals>
-					</or>
+					<greater-than-equals>
+						<property>systems/electrical/bus/dc-ess</property>
+						<value>25</value>
+					</greater-than-equals>
 				</condition>
 				<command>nasal</command>
 				<script>libraries.MechCall();</script>
@@ -6507,16 +6159,10 @@
 			<repeatable>false</repeatable>
 			<binding>
 				<condition>
-					<or>
-						<greater-than-equals>
-							<property>systems/electrical/bus/dc1</property>
-							<value>25</value>
-						</greater-than-equals>
-						<greater-than-equals>
-							<property>systems/electrical/bus/dc2</property>
-							<value>25</value>
-						</greater-than-equals>
-					</or>
+					<greater-than-equals>
+						<property>systems/electrical/bus/dc-ess</property>
+						<value>25</value>
+					</greater-than-equals>
 				</condition>
 				<command>nasal</command>
 				<script>libraries.CabinCall();</script>
@@ -6532,16 +6178,10 @@
 			<repeatable>false</repeatable>
 			<binding>
 				<condition>
-					<or>
-						<greater-than-equals>
-							<property>systems/electrical/bus/dc1</property>
-							<value>25</value>
-						</greater-than-equals>
-						<greater-than-equals>
-							<property>systems/electrical/bus/dc2</property>
-							<value>25</value>
-						</greater-than-equals>
-					</or>
+					<greater-than-equals>
+						<property>systems/electrical/bus/dc-ess</property>
+						<value>25</value>
+					</greater-than-equals>
 				</condition>
 				<command>property-toggle</command>
 				<property>controls/switches/LrainRpt</property>
@@ -6561,16 +6201,10 @@
 			<repeatable>false</repeatable>
 			<binding>
 				<condition>
-					<or>
-						<greater-than-equals>
-							<property>systems/electrical/bus/dc1</property>
-							<value>25</value>
-						</greater-than-equals>
-						<greater-than-equals>
-							<property>systems/electrical/bus/dc2</property>
-							<value>25</value>
-						</greater-than-equals>
-					</or>
+					<greater-than-equals>
+						<property>systems/electrical/bus/dc-ess</property>
+						<value>25</value>
+					</greater-than-equals>
 				</condition>
 				<command>property-toggle</command>
 				<property>controls/switches/RrainRpt</property>
@@ -6665,16 +6299,10 @@
 			<repeatable>false</repeatable>
 			<binding>
 				<condition>
-					<or>
-						<greater-than-equals>
-							<property>systems/electrical/bus/dc1</property>
-							<value>25</value>
-						</greater-than-equals>
-						<greater-than-equals>
-							<property>systems/electrical/bus/dc2</property>
-							<value>25</value>
-						</greater-than-equals>
-					</or>
+					<greater-than-equals>
+						<property>systems/electrical/bus/dc-ess</property>
+						<value>25</value>
+					</greater-than-equals>
 				</condition>
 				<command>property-toggle</command>
 				<property>controls/oxygen/masksSys</property>
@@ -6712,16 +6340,10 @@
 			<repeatable>false</repeatable>
 			<binding>
 				<condition>
-					<or>
-						<greater-than-equals>
-							<property>systems/electrical/bus/dc1</property>
-							<value>25</value>
-						</greater-than-equals>
-						<greater-than-equals>
-							<property>systems/electrical/bus/dc2</property>
-							<value>25</value>
-						</greater-than-equals>
-					</or>
+					<greater-than-equals>
+						<property>systems/electrical/bus/dc-ess</property>
+						<value>25</value>
+					</greater-than-equals>
 				</condition>
 				<command>property-toggle</command>
 				<property>controls/oxygen/crewOxyPB</property>
@@ -6763,16 +6385,10 @@
 							<property>controls/OH/protectors/maskman</property>
 							<value>1</value>
 						</equals>
-						<or>
-							<greater-than-equals>
-								<property>systems/electrical/bus/dc1</property>
-								<value>25</value>
-							</greater-than-equals>
-							<greater-than-equals>
-								<property>systems/electrical/bus/dc2</property>
-								<value>25</value>
-							</greater-than-equals>
-						</or>
+						<greater-than-equals>
+							<property>systems/electrical/bus/dc-ess</property>
+							<value>25</value>
+						</greater-than-equals>
 					</and>
 				</condition>
 				<command>property-toggle</command>
diff --git a/Nasal/ADIRS.nas b/Nasal/ADIRS.nas
index 2d04f1b0..c683b522 100644
--- a/Nasal/ADIRS.nas
+++ b/Nasal/ADIRS.nas
@@ -93,7 +93,7 @@ var ADIRS = {
 		
 		if (ac1 >= 110 or ac2 >= 110) {
 			pwr_src = "AC";
-		} else if (batt1_amps >= 120 or batt2_amps >= 120) {
+		} else if ((batt1_amps >= 120 or batt2_amps >= 120) and (getprop("/controls/adirs/ir[0]/knob") != 0 or getprop("/controls/adirs/ir[1]/knob") != 0 or getprop("/controls/adirs/ir[2]/knob") != 0)) {
 			pwr_src = "BATT";
 		} else {
 			pwr_src = "XX";
diff --git a/revision.txt b/revision.txt
index edfd6052..e35e47da 100644
--- a/revision.txt
+++ b/revision.txt
@@ -1 +1 @@
-4202
\ No newline at end of file
+4203
\ No newline at end of file