OTEC has additional important advantages including the production of limitless, clean, fresh drinking water. A 10-megawatt plant could produce millions of gallons of potable water per day from nutrient-rich, pathogen-free ocean water. Cold water from the deep ocean, rivers or lakes can also be used to air-condition — often referred to as seawater district cooling (SDC) and lake source district cooling. We can make use of our seawater abundance. This technology will be enough for our future generations to survive the basic necessity supplies without destroying further our mother earth.