Question: By default, only the most recently used plan as well as "balanced" are available. How do I display all 3 default power plans? I'd like to avoid third party programs if possible.

Answer: 
I'll throw in a late update to this, [Power Scheme Switcher](http://powerschemeswitcher.codeplex.com/), under the MIT license with source code available from the same place. Built in C# on Visual Studio 2012.
See my answer to this an other question, on how to create your own Power Scheme switcher menu, using only Windows built-in features :

<https://superuser.com/a/1631250/711015>

That way you can show and have access to switch to any number of schemes.