Hydro power in India, as an expert puts it, "is the most neglected in an already neglected power sector.' So it shouldn't come as a surprise that of the total economically exploitable hydro potential of 84,000 MW (which at 60% plant load factor is equivalent to 1,48,700 MW of installed capacity), only 21% or nearly 32,000 MW has been developed. Lack of investment in the segment has been identified as the main cause of the worsening hydro-thermal power mix.