diff --git a/doc/input-output-reference/src/overview/group-electric-load-center-generator.tex b/doc/input-output-reference/src/overview/group-electric-load-center-generator.tex
index e295fedf1e1..3b6cd29c797 100644
--- a/doc/input-output-reference/src/overview/group-electric-load-center-generator.tex
+++ b/doc/input-output-reference/src/overview/group-electric-load-center-generator.tex
@@ -1840,7 +1840,7 @@ \subsubsection{Inputs}\label{inputs-8-005}
 
 \paragraph{Field: Fuel Type}\label{field-fuel-type-1}
 
-This alpha field determines the type of fuel that the generator uses. Valid choices are: \textbf{NaturalGas, Propane, Diesel, Gasoline, FuelOilNo1, FuelOilNo2, OtherFuel1} and \textbf{OtherFuel2}. The default is \textbf{NaturalGas}.
+This choice field specifies the type of fuel used by the generator. The fuel type can be NaturalGas, Propane, FuelOilNo1, FuelOilNo2, Diesel, Gasoline, Coal, OtherFuel1, or OtherFuel2. If the field is left blank, the fuel type will be assumed to be \textbf{NaturalGas}.
 
 \paragraph{Field: Heat Recovery Maximum Temperature}\label{field-heat-recovery-maximum-temperature-1}
 
@@ -2040,7 +2040,7 @@ \subsubsection{Inputs}\label{inputs-9-004}
 
 \paragraph{Field: Fuel Type}\label{field-fuel-type-2}
 
-This choice field specifies the type of fuel used by the generator. Valid field types are Propane and NaturalGas. If the field is left blank, the fuel type will be assumed to be NaturalGas.
+This choice field specifies the type of fuel used by the generator. The fuel type can be NaturalGas, Propane, FuelOilNo1, FuelOilNo2, Diesel, Gasoline, Coal, OtherFuel1, or OtherFuel2. If the field is left blank, the fuel type will be assumed to be \textbf{NaturalGas}.
 
 \paragraph{Field: Fuel Higher Heating Value}\label{field-fuel-higher-heating-value-2}
 
diff --git a/idd/Energy+.idd.in b/idd/Energy+.idd.in
index 5fba4bd0c66..d54c6b58216 100644
--- a/idd/Energy+.idd.in
+++ b/idd/Energy+.idd.in
@@ -86147,10 +86147,11 @@ Generator:CombustionTurbine,
        \type choice
        \key NaturalGas
        \key Propane
-       \key Diesel
-       \key Gasoline
        \key FuelOilNo1
        \key FuelOilNo2
+       \key Diesel
+       \key Gasoline
+       \key Coal
        \key OtherFuel1
        \key OtherFuel2
        \default NaturalGas
@@ -86242,6 +86243,13 @@ Generator:MicroTurbine,
       \type choice
       \key NaturalGas
       \key Propane
+      \key FuelOilNo1
+      \key FuelOilNo2
+      \key Diesel
+      \key Gasoline
+      \key Coal
+      \key OtherFuel1
+      \key OtherFuel2
       \default NaturalGas
   N8, \field Fuel Higher Heating Value
       \type real