diff --git a/Source/Applications/SIEGate/SIEGate/App.config b/Source/Applications/SIEGate/SIEGate/App.config
index d923b2332..e4b5c39db 100644
--- a/Source/Applications/SIEGate/SIEGate/App.config
+++ b/Source/Applications/SIEGate/SIEGate/App.config
@@ -29,7 +29,8 @@
       <add name="RemoteCertificatesPath" value="Certs\Remotes" description="Path to the directory where remote certificates are stored." encrypted="false"/>
       <add name="InstalledBitSize" value="64" description="Target installation bit size (used by installer)." encrypted="false"/>
       <add name="PointTagNameExpression" value="{CompanyAcronym}_{DeviceAcronym}[?{SignalType.Source}=Phasor[:eval{'{PhasorLabel}'.Trim().ToUpper().Replace(' ','_')}_eval{'{SignalType.Abbreviation}'.Substring(0,1)}eval{'{Phase}'=='+'?'1':('{Phase}'=='-'?'2':'{Phase}')}[?{BaseKV}&gt;0[_{BaseKV}]][?{SignalType.Suffix}=PA[.ANG]][?{SignalType.Suffix}=PM[.MAG]]]][?{SignalType.Acronym}=ALOG[:eval{('{Label}'.Trim().Length&gt;0?'{Label}'.Trim().ToUpper().Replace(' ','_'):'ALOG'+((int){SignalIndex}).ToString().PadLeft(2,(char)48))}]][?{SignalType.Source}!=Phasor[?{SignalType.Acronym}!=ALOG[:{SignalType.Acronym}[?{SignalIndex}!=-1[eval{((int){SignalIndex}).ToString().PadLeft(2,(char)48)}]]]]]" description="Defines the expression used to create point tag names. NOTE: if updating this setting, synchronize value in both the manager and service config files." encrypted="false" scope="Application"/>
-    </systemSettings>
+      <add name="DefaultCalculationLagTime" value="5" description="Defines the default lag-time value, in seconds, for template calculations" encrypted="false" />
+      <add name="DefaultCalculationLeadTime" value="5" description="Defines the default lead-time value, in seconds, for template calculations" encrypted="false" />    </systemSettings>
     <serviceHelper>
       <add name="MonitorServiceHealth" value="True" description="True if the service health is to be monitored; otherwise False." encrypted="false"/>
       <add name="HealthMonitorInterval" value="5" description="The interval, in seconds, over which to sample the performance montitor for health statistics." encrypted="false"/>
diff --git a/Source/Applications/SIEGate/SIEGate/AppDebug.config b/Source/Applications/SIEGate/SIEGate/AppDebug.config
index 3d6df063c..d848b3f36 100644
--- a/Source/Applications/SIEGate/SIEGate/AppDebug.config
+++ b/Source/Applications/SIEGate/SIEGate/AppDebug.config
@@ -27,6 +27,8 @@
       <add name="RemoteCertificatesPath" value="Certs\Remotes" description="Path to the directory where remote certificates are stored." encrypted="false"/>
       <add name="InstalledBitSize" value="64" description="Target installation bit size (used by installer)." encrypted="false"/>
       <add name="PointTagNameExpression" value="{CompanyAcronym}_{DeviceAcronym}[?{SignalType.Source}=Phasor[:eval{'{PhasorLabel}'.Trim().ToUpper().Replace(' ','_')}_eval{'{SignalType.Abbreviation}'.Substring(0,1)}eval{'{Phase}'=='+'?'1':('{Phase}'=='-'?'2':'{Phase}')}[?{BaseKV}&gt;0[_{BaseKV}]][?{SignalType.Suffix}=PA[.ANG]][?{SignalType.Suffix}=PM[.MAG]]]][?{SignalType.Acronym}=ALOG[:eval{('{Label}'.Trim().Length&gt;0?'{Label}'.Trim().ToUpper().Replace(' ','_'):'ALOG'+((int){SignalIndex}).ToString().PadLeft(2,(char)48))}]][?{SignalType.Source}!=Phasor[?{SignalType.Acronym}!=ALOG[:{SignalType.Acronym}[?{SignalIndex}!=-1[eval{((int){SignalIndex}).ToString().PadLeft(2,(char)48)}]]]]]" description="Defines the expression used to create point tag names. NOTE: if updating this setting, synchronize value in both the manager and service config files." encrypted="false" scope="Application"/>
+      <add name="DefaultCalculationLagTime" value="5" description="Defines the default lag-time value, in seconds, for template calculations" encrypted="false" />
+      <add name="DefaultCalculationLeadTime" value="5" description="Defines the default lead-time value, in seconds, for template calculations" encrypted="false" />
     </systemSettings>
     <serviceHelper>
       <add name="MonitorServiceHealth" value="True" description="True if the service health is to be monitored; otherwise False." encrypted="false"/>
diff --git a/Source/Applications/SIEGate/SIEGate/ServiceHost.cs b/Source/Applications/SIEGate/SIEGate/ServiceHost.cs
index fd3f63dcb..fe5e87d17 100644
--- a/Source/Applications/SIEGate/SIEGate/ServiceHost.cs
+++ b/Source/Applications/SIEGate/SIEGate/ServiceHost.cs
@@ -21,9 +21,11 @@
 //
 //******************************************************************************************************
 
+using System;
 using GSF.TimeSeries;
 using GSF;
 using GSF.Configuration;
+using GSF.Diagnostics;
 
 namespace SIEGate
 {
@@ -39,11 +41,23 @@ protected override void ServiceStartingHandler(object sender, EventArgs<string[]
             // Handle base class service starting procedures
             base.ServiceStartingHandler(sender, e);
 
-            // Make sure SIEGate specific default service settings exist
-            CategorizedSettingsElementCollection systemSettings = ConfigurationFile.Current.Settings["systemSettings"];
+            try
+            {
+                // Make sure SIEGate specific default service settings exist
+                CategorizedSettingsElementCollection systemSettings = ConfigurationFile.Current.Settings["systemSettings"];
 
-            systemSettings.Add("CompanyName", "Grid Protection Alliance", "The name of the company who owns this instance of the SIEGate.");
-            systemSettings.Add("CompanyAcronym", "GPA", "The acronym representing the company who owns this instance of the SIEGate.");
+                systemSettings.Add("CompanyName", "Grid Protection Alliance", "The name of the company who owns this instance of the SIEGate.");
+                systemSettings.Add("CompanyAcronym", "GPA", "The acronym representing the company who owns this instance of the SIEGate.");
+                systemSettings.Add("DefaultCalculationLagTime", 5.0, "Defines the default lag-time value, in seconds, for template calculations");
+                systemSettings.Add("DefaultCalculationLeadTime", 5.0, "Defines the default lead-time value, in seconds, for template calculations");
+                systemSettings.Add("DefaultCalculationFramesPerSecond", 30, "Defines the default frames-per-second value for template calculations");
+
+                ConfigurationFile.Current.Save();
+            }
+            catch (Exception ex)
+            {
+                Logger.SwallowException(new InvalidOperationException($"{nameof(ServiceStartingHandler)} failed while adding default settings: {ex.Message}", ex));
+            }
         }
     }
 }