What Is Wrong with Mega Dams? - The Baram Dam Project

When we talk about renewable energy, it is about the production of electricity using renewable resources such as sun light and wind, which won't be depleted. Some people might suggest hydroelectricity which is obtained through the turning of turbines using the gushing of water from a higher elevation (potential energy to mechanical energy to electrical energy) which does not use up any resource as well. The most renowned hydroelectrical dam in China - Three Gorges Dam at Yangtze River which covers an area of 632 square kilometres generates a total of 84 TeraWatts-hours of electricity each year (a typical light bulb requires only 60 Watts to light up).  

The Bakun Dam.
(photo taken from the Sarawak Report website)