Resource management for tiny home

Feasibility Subteam, we are concerned that the current tiny house design does not address the surveyed desires of our target consumer demographic, specifically a need for low-energy air conditioning and water conservation efforts through a grey-water system. Please develop a prototype to address each of these.

Please address the following in your memo:

Technical description of how they work
Your proposed design for each requested element
Modifications to each design you would make based on your specific geographic location
Any assumptions made