May be you can do something like this -
$Event = Get-EventLog -LogName Security -newest 100 | ConvertTo-HTML -Fragment
$Process = Get-Process | ConvertTo-HTML -Fragment
ConvertTo-HTML -Body "$Event $Process" -Title "Status Report" | Out-File c:\StatusReport.html
NB: Replace $Event and $Process
with your service cmdlets.
-Fragment [<SwitchParameter>] Generates only an HTML table. The HTML, HEAD, TITLE, and BODY tags are omitted.
Reference - http://technet.microsoft.com/en-us/magazine/hh127059.aspx