This one has been really handy.
$BitlockerVolumers = Get-BitLockerVolume
$BitlockerVolumers |
ForEach-Object {
$MountPoint = $_.MountPoint
$RecoveryKey = string.RecoveryPassword
if ($RecoveryKey.Length -gt 5) {
Write-Output ServerUtilsSetMachineProperty(@ThisMachine(),BitLocker,$RecoveryKey)
}
}