The first thing to go with most solar energy installations is the kitchen stove. It takes lots of energy to cook food. You have likely heard me say that 70% or more of all energy use (in USA and UK as of the 70's) is directly or indirectly associated with getting food on your table. Industrial food preparation can develop a high degree of energy efficiency over making the same items at home. Many fast food items taste good at room temperature or frozen and many do not need to be stored in refrigeration/freezers nor do they need to be transported in a hurry to maintain freshness. If the items can be made on or near the farms that make the original ingredients and distributed effectively (serving local need first), I think the maximum in food distribution efficiency can be achieved. I am doing some research on the best eating diets for long life and that keeps pointing to eating less but more often which is a problem if you have to cook a meal every 2 hours... Instead, a nutritious snack will fit the bill and eliminate cooking energy and the energy hog known as the refrigerator. I want to make food for small animals and freshness and avoiding rot is very important (the humans don't know the food tastes horrible so they feed less because the animal eats less... not good and then the animal dies from eating too much of what ever was making the food taste bad). I essentially need to design nutritious snack food... same technology needs to be put into human diets made of specially made snack foods.