Here is a thread on Growing and Preserving. Lots of good info.
http://www.butchfemmeplanet.com/foru...ead.php?t=1056
So lets start pulling it together.
You've got your tiny house and maybe even a tiny yard. You have part solar and part electric. What things do you think you'd need to run off solar? Let's say shit hit the fan, you had no money at all, therefore no electric. You want to reserve your solar panels and batteries for essentials. What are they?
You can catch water with a reservoir and depending on the time of year or tank it can have its own solar effect to heat. You can heat and cook with wood.
How about building a small glass green house attached to your tiny house? If you use poly you'll have to replace it in 4 years. Glass is forever. It can also help heat your house if done properly