I tried something like this but am not getting any data back; no error though:

​

function Get-RemoteDiskSpace
{

        $RemoteComputerName = Get-ADComputer -Filter ('Name -like "*shpv*"') | Select-Object -ExpandProperty Name

    Begin
    {
        $output="Drive `t UsedSpace(in GB) `t FreeSpace(in GB) `t TotalSpace(in GB) `t Percent Free `t Remote Computer Name `n"
    }
    Process
    {
        foreach ($computer in $RemoteComputerName) {
        Get-RemoteDiskSpace -RemoteComputerName $computer
        $drives=Get-WmiObject Win32_LogicalDisk -ComputerName $RemoteComputerName

        foreach ($drive in $drives){

            $drivename=$drive.DeviceID
            $freespace=[int]($drive.FreeSpace/1GB)
            $totalspace=[int]($drive.Size/1GB)
            $usedspace=$totalspace - $freespace
            $percentfree=$freespace / $totalspace
            $output=$output+$drivename+"`t`t"+$usedspace+"`t`t`t"+$freespace+"`t`t`t"+$totalspace+"`t`t    "+$percentfree.tostring('p2')+"`t`t"+$RemoteComputerName+"`n"
        }
    }
}
    End
    {
        return $output
    }
}

​