The Water Abundance X-Prize was recently awarded to the Skysource/Skywater alliance for:
... developing an easily deployable high-volume water generator that can be used in any climate, meeting the competition parameters of extracting a minimum of 2,000 liters of water per day from the atmosphere using 100 percent renewable energy, at a cost of no more than two cents per liter.
And that sounds great! However, I've had a hard time nailing down actual numbers about energy usage. That leaves me with two questions:
- How much input energy is required per litre of produced freshwater? And how does that compare to energy required by a desalination plant?
- What is the quantity of greenhouse gas emissions (per litre of water) that are produced when the water generator is operating under ideal conditions?