diff --git a/.github/workflows/install.sh b/.github/workflows/install.sh
new file mode 100755
index 00000000..cd95096c
--- /dev/null
+++ b/.github/workflows/install.sh
@@ -0,0 +1,92 @@
+#!/bin/bash
+function version_gt() { test "$(printf '%s\n' "$@" | sort -V | head -n 1)" != "$1"; }
+# Check if EnergyPlus env variables exist already. If not use these defaults
+if [[ -z "${ENERGYPLUS_VERSION}" ]]; then
+  export ENERGYPLUS_VERSION=9.2.0
+fi
+if [[ -z "${ENERGYPLUS_SHA}" ]]; then
+  export ENERGYPLUS_SHA=921312fa1d
+fi
+if [[ -z "${ENERGYPLUS_INSTALL_VERSION}" ]]; then
+  export ENERGYPLUS_INSTALL_VERSION=9-2-0
+fi
+
+if [[ "$OSTYPE" == "linux-gnu"* ]]; then
+  if version_gt $ENERGYPLUS_VERSION 9.3.0; then
+    export EXT="sh"
+    export PLATFORM=Linux-Ubuntu18.04
+  else
+    export EXT="sh"
+    export PLATFORM=Linux
+  fi
+  export ATTCHBASE=67022360382
+  export ATTCHNUM="multipletransitionidfversionupdater-lin.tar.gz"
+elif [[ "$OSTYPE" == "darwin"* ]]; then
+  if version_gt $ENERGYPLUS_VERSION 9.3.0; then
+    export EXT=dmg
+    export PLATFORM=Darwin-macOS10.15
+  else
+    export EXT=dmg
+    export PLATFORM=Darwin
+  fi
+  export ATTCHBASE=67022360547
+  export ATTCHNUM="idfversionupdater-macos-v8.4.0.zip"
+elif [[ "$OSTYPE" == "win"* || "$OSTYPE" == "msys"* ]]; then
+  export EXT=zip
+  export PLATFORM=Windows
+  export ATTCHBASE=67022360088
+  export ATTCHNUM="multipletransitionidfversionupdater-win.zip"
+fi
+# Download EnergyPlus executable
+ENERGYPLUS_DOWNLOAD_BASE_URL=https://github.com/NREL/EnergyPlus/releases/download/v$ENERGYPLUS_VERSION
+ENERGYPLUS_DOWNLOAD_FILENAME=EnergyPlus-$ENERGYPLUS_VERSION-$ENERGYPLUS_SHA-$PLATFORM-x86_64
+ENERGYPLUS_DOWNLOAD_URL=$ENERGYPLUS_DOWNLOAD_BASE_URL/$ENERGYPLUS_DOWNLOAD_FILENAME.$EXT
+echo "$ENERGYPLUS_DOWNLOAD_URL"
+curl --fail -SL -C - "$ENERGYPLUS_DOWNLOAD_URL" -o "$ENERGYPLUS_DOWNLOAD_FILENAME".$EXT
+
+# Extra downloads
+EXTRAS_DOWNLOAD_URL=https://energyplushelp.freshdesk.com/helpdesk/attachments/$ATTCHBASE
+curl --fail -SL -C - $EXTRAS_DOWNLOAD_URL -o $ATTCHNUM
+
+# Install EnergyPlus and Extra Downloads
+if [[ "$OSTYPE" == "linux-gnu"* ]]; then
+  sudo chmod +x "$ENERGYPLUS_DOWNLOAD_FILENAME".$EXT
+  printf "y\r" | sudo ./"$ENERGYPLUS_DOWNLOAD_FILENAME".$EXT
+  sudo tar zxvf $ATTCHNUM -C /usr/local/EnergyPlus-"$ENERGYPLUS_INSTALL_VERSION"/PreProcess/IDFVersionUpdater
+  sudo chmod -R a+rwx /usr/local/EnergyPlus-"$ENERGYPLUS_INSTALL_VERSION"/PreProcess/IDFVersionUpdater
+  sudo chmod -R a+rwx /usr/local/EnergyPlus-"$ENERGYPLUS_INSTALL_VERSION"/ExampleFiles
+  # cleanup
+  sudo rm "$ENERGYPLUS_DOWNLOAD_FILENAME".$EXT
+  sudo rm $ATTCHNUM
+elif [[ "$OSTYPE" == "darwin"* ]]; then
+  # getting custom install script https://github.com/NREL/EnergyPlus/pull/7615
+  curl -SL -C - https://raw.githubusercontent.com/jmarrec/EnergyPlus/40afb275f66201db5305f54df6c070d0b0cb4fc3/cmake/qtifw/install_script.qs -o install_script.qs
+  sudo hdiutil attach "$ENERGYPLUS_DOWNLOAD_FILENAME".$EXT
+  sudo /Volumes/"$ENERGYPLUS_DOWNLOAD_FILENAME"/"$ENERGYPLUS_DOWNLOAD_FILENAME".app/Contents/MacOS/"$ENERGYPLUS_DOWNLOAD_FILENAME" --verbose --script install_script.qs
+  sudo tar zxvf $ATTCHNUM -C /Applications/EnergyPlus-"$ENERGYPLUS_INSTALL_VERSION"/PreProcess
+  sudo chmod -R a+rwx /Applications/EnergyPlus-"$ENERGYPLUS_INSTALL_VERSION"/PreProcess/IDFVersionUpdater
+  sudo chmod -R a+rwx /Applications/EnergyPlus-"$ENERGYPLUS_INSTALL_VERSION"/ExampleFiles
+  # cleanup
+  sudo rm install_script.qs
+  sudo rm "$ENERGYPLUS_DOWNLOAD_FILENAME".$EXT
+  sudo rm $ATTCHNUM
+elif [[ "$OSTYPE" == "win"* || "$OSTYPE" == "msys"* ]]; then
+  # On windows, we are simply extracting the zip file to c:\\
+  echo "Extracting and Copying files to... C:\\"
+  powershell Expand-Archive -Path $ENERGYPLUS_DOWNLOAD_FILENAME.$EXT -DestinationPath C:\\
+  powershell Rename-Item -Path c:\\$ENERGYPLUS_DOWNLOAD_FILENAME -NewName EnergyPlusV"$ENERGYPLUS_INSTALL_VERSION"
+  # extract extra downloads to destination
+  DEST=C:\\EnergyPlusV"$ENERGYPLUS_INSTALL_VERSION"\\PreProcess\\IDFVersionUpdater
+  echo "Extracting and Copying files to... $DEST"
+  powershell Expand-Archive -Path $ATTCHNUM -DestinationPath "$DEST" -Force
+  # cleanup
+  rm -v $ENERGYPLUS_DOWNLOAD_FILENAME.$EXT
+  rm -v $ATTCHNUM
+  IDD=C:\\EnergyPlusV"$ENERGYPLUS_INSTALL_VERSION"\\Energy+.idd
+  if [ -f "$IDD" ]; then
+    echo "$IDD" exists
+  else
+    echo "$IDD" does not exist
+    travis_terminate 1
+  fi
+fi