this post was submitted on 22 Aug 2024
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Our local high school cafeteria program has been running a sophisticated version of this without the biogas element for years. Fish in very large tanks feed the leafy greens hydroponics growing in ranks of pipes on the walls, it's very productive. Greens get used in the popular cafeteria (open to the public) and also the salad food truck they run in the summer months. Fish used are tilapia. Power is solar.
The students studying food services get a lesson in energy systems and food sourcing as well as running a business. Superb food, too. All mostly due to one chef-teacher with vision.