The Government has
taken several measures to improve the efficiency of coal based thermal
power plants & improve the air quality in the vicinity of these plants.
These are as follows:-
i) Supercritical technology has already been adopted for thermal power
generation. The design efficiency of Supercritical units is about 5%
higher than typical 500 MW subcritical units and these (supercritical)
units are likely to have correspondingly lower fuel consumption and CO2
emissions in ambient air. A capacity addition of 39,710 MW based on
supercritical technology has already been achieved and 48,060 MW of
supercritical is in the pipeline.
(ii) All Ultra Mega Power Projects (UMPPs) are required to use
(iii) Coal based capacity addition during 13th Plan shall be through
(iv) Indigenous research is being pursued for development of Advanced
Ultra Supercritical Technology (A-USC) with targeted efficiency
improvement of about 10% over supercritical unit. Indira Gandhi Centre
for Atomic Research (IGCAR), NTPC and BHEL have signed an MoU in August
2010 for development of 800 MW A-USC indigenous demonstration plant with
main steam pressure of 310 kg/cm2 and temperature of 710/ 720 deg C.
(v) A capacity of about 7751.94 MW of old and inefficient unit has
already been retired till date.
(vi) To facilitate State Utilities/IPPs to replace old inefficient coal
based thermal units with supercritical units, Ministry of Coal,
Government of India has formulated a policy of automatic transfer of
LOA/Coal linkage (granted to old plants) to new (proposed)
(vii) Perform Achieve and Trade (PAT) Scheme under National Mission on
Enhanced Energy Efficiency is under implementation by BEE (Bureau of
Energy Efficiency). In PAT cycle–II, individual target for improving
efficiency has been assigned to 154 thermal power stations.
(viii) High efficiency Electrostatics Preceptor (ESP) are installed to
capture Particulate Matters (Fly ash) from Flue gases.
(ix) Low NOX burners are installed for reducing NOx emission from flue
(x) SO2 emission control is achieved through dispersion of flue gases
through tall stacks (275 metres) to reduce the concentration of
polluting gases at ground level.
This was stated by Shri Piyush Goyal, Minister of State (IC) for Power,
Coal & New and Renewable Energy and Mines in a written reply to a
question in the Lok Sabha today