Great extra ideas there for food hub style set ups - and it is great to have something for everyone.
We both believe that the Community is the future for survival of local food and people.
We (society) need to pool resources, group together and go forward together as communities, in the hope that this silly materialism of everyone having their own goes away. The planet cannot cope with it for much longer.

Plus its the only cost effective way to produce your own quality stuff and not buy from the supermarkets.
Re: Wind powered Cold Store - Yes - us too!
We have a stream going through our land, which really needs an old traditional water
wheel building on it for future free power. ( And the look of it will be awesome).
We are also on a mountain, and have high land that would suit wind power, and all our
buildings are south facing, so roof would be ideal for solar power too.
At the moment we are paying a lot to have our three chest freezers, and our Cold Room
running 24/7, but the future plans are to have these items running for free, and the lighting.
All our heating is renewable timber, so no oil, or gas on our land. A wind powered cold store, built partially or all underground and lined in stone or concrete would be cool, like the old pantrys before fridges
that had a big stone or slab that was always cold and kept temperatures down, would be a lot
less to run, on wind power, than the new fangled all steel and plastic lined cold rooms.
Keep me up to date on your project - ours are future, we have too many things to do at the mo.
Where abouts are you in Sheffield? I used to work in Rotherham at Intac Data Systems many moons ago and worked with Sheffield City Council on their Desk Top Publishing implementation and sold image scanners to large corporations and governments.
Loved the Meadowhall back then when it first opened, and the cafe where the staff used to come out and dance on the tables - it was a hoot! - do they still do that there???
Bye for now Carl

Julie