CURRENT AFFAIRS

Detailed explanation-1: -The researchers of IIT Guwahati employed the nanoscale phenomenon called “Electrokinetic streaming potential” to harvest energy from flowing water on the small length scale like water flowing through household water taps.

Detailed explanation-2: -They found that it was possible to generate power just by dipping the graphene-based device in these water sources. When dipped in various samples of stagnant water, it produced a voltage of up to 570 millivolts. It was stable and retained its power-generating efficiency for a few days.

Detailed explanation-3: -At the plant level, water flows through a pipe-also known as a penstock-and then spins the blades in a turbine, which, in turn, spins a generator that ultimately produces electricity. Most conventional hydroelectric facilities operate this way, including run-of-the-river systems and pumped storage systems.

Detailed explanation-4: -Hydropower, or hydroelectric power, is one of the oldest and largest sources of renewable energy, which uses the natural flow of moving water to generate electricity. Hydropower currently accounts for 31.5% of total U.S. renewable electricity generation and about 6.3% of total U.S. electricity generation.