NTPC collaborates with Delhi Jal Board to convert waste into energy

In order to reduce the carbon footprint, NTPC Limited has partnered with Delhi Jal Board (DJB) to utilise sludge produced in DJB’s sewage treatment plants (STP) into energy. The waste sludge was torrefied and burnt from NTPC’s unit 4 Boiler at Dadri. Reportedly, this environmentally friendly technical solution is an innovative way to convert STP sludge into electricity while reducing carbon emissions.

Sludge production at sewage treatment plants produces up to 800 metric tonnes per day. The disposal of this sludge is a significant concern because it adds to pollution. It also poses a serious hazard to the health of the people residing in the surrounding area. Sludge combustion in the boiler reduces net carbon emissions, water and land pollution, and paves the path for waste to be utilised and converted to energy in an environmentally beneficial manner.

Previously, NTPC Limited invited bids for the engineering, procurement, and construction of a grid-connected battery energy storage system (BESS) with 10 MW and 40 MWh rated AC discharge capacity at a 33 kV switch gear interconnection point in Ramagundam, Telangana. The bid submission deadline is May 23, 2022.

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