Australia’s Sundrop Farms uses sunlight to desalinate seawater. The resulting fresh water is used and re-used to power and irrigate four hydroponic greenhouses with 175,000 tomato plants in each. Those sustainable year ’round tomatoes are 15% of Australia’s annual tomato produce. And they do all of this in the desert, around 300 kilometers (186 miles) north of Adalaide.
This closed-loop system is Sundrop’s solution for creating fresh water, energy, and food in a smart and sustainable way. The 2012 animation above summarizes their system. From their site:
If you are a traditional farmer, youāll need water and energy to grow your produce. And youāll need lots of it.
The challenge is that they are finite resources that are becoming ever scarcer. Our solution? Not to use them!
We donāt extract groundwater from the planet at unsustainable rates. We donāt rely on fossil fuels. And we donāt use soil or valuable farmlands.
Instead weāve developed technologies that integrate solar power, electricity generation, fresh water production and hydroponics. It produces an equivalent quantity of food to that grown using traditional methods, but the quality is significantly better.
This 2016 report from ABC Landline provides more details:
Next, watch: Powered by Poop at the Straus Family Creamery, Inside Montrealās Zero Waste Urban Greenhouses, and designing solar panel walls that can recycle & heat greywater.
Bonus: 24/7 Concentrated Solar Thermal Power + Molten Salt Storage.
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