the burning of coal releases ash and flue gases. the flue gases are released out into the surroundings, 220 m above the ground level via two chimneys. post combustion, the mixture of flue gases and ash passes over an electrostatic precipitator (esp). this attracts the ash particles, which are usually positively or negatively charged, to its surface and lets the uncharged flue gases through to the chimneys. this esp has 8 stages, to even out the accumulation of ash and prevent overloading. the ash is collected in a storage via a hopper. this ash is then carried away to the ahp until it is shipped if the need arises.