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Facts about Giral Lignite Power Plant, Rajasthan

Facts about Giral Lignite Power Plant, Rajasthan

Giral Lignite Thermal Power Station (GLTPP) is a fully owned by subsidiary of Rajasthan Rajya Vidyut Utpadan Nigam Limited.

Rajasthan Rajya Vidyut Utpadan Nigam Limited is a state government owned corporation working in field of power generation.

The Giral thermal power station has total installed capacity of 250 MW. Two identical units of 125 MW each are built by Bharat Heavy Electricals Limited (BHEL) on EPC basis. It is a pit head plant. The fuel is lignite coal, which is procured from the mines just behind the plant.

The fuel is supplied by Rajasthan State Mines & Minerals Limited (RSMML). An additive to fuel is limestone, which is added in pulverised form to the lignite, for the purpose of neutralising the sulphur Oxides (SOx); Sulphur Oxides are formed as a byproduct of combustion of lignite containing sulphur as its constituent. Limestone is also supplied by RSMML. Lignite cost is nearly Rs400 per MT.

Giral Lignite Power is country's first lignite-based power plant in Rajasthan and is in fact first power plant in the world in operation, at-least partially, using lignite having sulphur content in the range of 6%. But as the technology was not fully proven and matured for smooth and efficient operation, it faced design problems in its main equipment.

Giral Lignite Thermal Power Project is a 2 x 125 MW plant owned by Rajasthan RV Utpadan Nigam (RVUN), the publicly owned power generation company in Rajasthan.

RVUN reportedly received environmental clearance for a 2 x 125 MW expansion (units 3 and 4) in 2004, although the permit is not posted online, and as of 2014 the expansion is not mentioned on the company's website.