Harnessing abandoned mines for sustainable energy: Coal India's pump storage initiative

Pump Storage initiative: Coal India's identification of abandoned mines for pump storage projects marks a pivotal step towards harnessing cleaner energy from unconventional sources.

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Edited By: Prateek Gautam
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Pump Storage initiative: In a groundbreaking move towards sustainable energy, Coal India Ltd (CIL) has identified more than 20 abandoned mines for evaluation and feasibility studies for pump storage projects.

This initiative, revealed during a diversification review meeting led by Coal Secretary Amrit Lal Meena, signifies a significant stride towards repurposing de-coaled mines for renewable energy solutions.

Identifying Potential Sites

State-owned NLCIL is concurrently conducting a feasibility study on pump storage projects, amplifying the scope of harnessing abandoned mines for clean energy initiatives. With over 200 de-coaled mines in coal-producing areas boasting vast land areas, the potential for transforming these sites into pump storage projects is both promising and economically viable.

The Pump Storage Power Concept

Pumped storage power plants, a key focus of this initiative, ingeniously utilize gravity to generate electricity. Water, previously pumped from a reservoir in the pit to an upper reservoir, becomes a dynamic energy source. During periods of low energy demand, the water is pumped into the higher reservoir. Conversely, during peak demand, the released water drives turbines, generating electricity and feeding it into the grid.

Stakeholder Collaboration for Project Expansion

In line with this vision, the coal ministry has directed stakeholder consultations with interested agencies to identify additional sites suitable for pump storage projects. The ministry emphasizes exploring diverse business models, including Engineering, Procurement, and Construction (EPC) and Public-Private Partnership (PPP), in collaboration with state governments, private players, and research institutions.

Economic Viability and Development Plans

The coal ministry's strategic plan revolves around leveraging the extensive land bank and economic advantages associated with de-coaled coal mines. By diversifying towards alternative energy sources, the aim is to foster sustainable development in the coal sector.

Solar Energy Integration for Hydroelectricity

One notable aspect of this initiative is the intention to utilize solar energy for the development of hydroelectric power. The plan envisions harnessing solar energy during the day and subsequently generating hydro-electricity at night. This dual approach not only maximizes energy efficiency but also aligns with global efforts to transition towards cleaner and renewable energy sources.

Conclusion: Transforming Coal Mines into Powerhouses of Sustainable Energy

In conclusion, Coal India's identification of abandoned mines for pump storage projects marks a pivotal step towards harnessing cleaner energy from unconventional sources. This ambitious initiative, coupled with stakeholder collaboration and the integration of solar energy, positions these de-coaled mines as potential powerhouses, contributing significantly to India's sustainable energy landscape.