This is the most popular and mature of all renewable energy sources and accounts for about 16 per cent of world electricity production. It has been around for thousands of years, historically used in agriculture for irrigation and grinding of corn. In today’s hydro industry water typically falls with gravity and pushes the blades in a turbine to produce electricity. As a country China currently holds the largest hydropower capacity with 263 GW or 20 per cent of the world’s total and has the largest active hydropower industry. Globally, there are hundreds of small entrepreneurs and municipal governments, as well as a number of large players. India also has a wide manufacturing base for small-scale hydropower equipment, with 20 active ...

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