HDH is a water treatment passive process, therefore it is not energy-intensive and can be easily adapted to a fully autonomous operation with a photovoltaic (PV) array. Also, it doesn’t require any sort of chemical supply and the skills required to operate it are common. Another advantage is that passive processes don’t change considerably the salts concentration of the rejected water, thus it doesn’t require post-treatment to meet environmental regulations as you do with Reverse Osmosis.

In cold climates, the HDH process can be used with cogeneration schemes adapting the exhaust of a boiler or other types of space heating machinery, in combination with solar energy taking advantage of all energy sources available at the place.