Any one who has basic understanding of power plants would know that every equipment and the power plant as a total requires how much power to run.
For example: a standard 270 MW plant would require so much, a super critical 800 MW boiler would burn so much coal etc.
One wonders though why would the total consumption for a power plant change so much.
As usual, the ambiguities come from one of Reliance for one of the largest power plants in the world (Sasan UMPP)
Here is a brief history of the estimates given by Reliance on its expected coal consumption:
- In 2007, when Sasan was awarded to Reliance it initially quoted that it would require 16 mtpa (million tonnes per annum) to run its plant
- In 2007, Reliance quoted that it can mine 25 mtpa of coal from the mines it was awarded. This was 9 mtpa more than the requirement.
- As per the approved mine plant, Reliance was allowed to use 4 mtpa beyond the requirement of the plant
- In 2014, NDA government cancelled the coal license to the tune of 5 mtpa from Reliance. Remember this should still allow 20 mtpa to be mined and that should be more than sufficient for the 16 mtpa requirement
- In 2015, Reliance states that it underestimated the coal requirement, which now stands at 19 mtpa. And since it was allowed an additional 4 mtpa as per the mining plant, it now claims that the new coal block be allotted.
I wonder if there is any plant whose coal consumption increased by 25% than previous estimates. And that too for one of the most efficient plants!!