There is enough wind along the coast to produce enough energy with wind turbines to power the entire world. Two American scientists will publish the calculations in PNAS. To reach their conclusion, the Americans devised a model in which all wind and the effect it can have on wind turbines, is converted into a maximum wattage of producible renewable energy.
Because building more wind turbines doesn’t result in a linear line of more energy, but flattens the energy gain per wind turbine which result in less energy produced per added wind turbine, scientists were looking specifically for the saturation point. The saturation point would be the point where building more wind turbines would not yield additional energy.
That point turned out to be 250 terawatt (Tera = 12 zeros) of energy. That is many times more than the current consumption of energy on earth, as well as demand in the future. At present, the global energy consumption is about 15 terawatts.
The scientists also looked at the practical implementation of wind turbines. They calculated how much energy can be produced only in coastal areas as wind turbines are built preferably at the coast. Even then, there remains plenty of potential: 80 terawatts.
The researchers went a step further by calculating how much energy can be produced only at the places where the most common and hardest wind is present. These areas would be most cost-effective investment in the short term. The two Americans came to wind energy potential of 7.5 terawatts, which could supply half of the world with energy.