Abandoned mines seek German tech
livemint.comCoal India Ltd (CIL) during a diversification review meeting with the coal secretary, the state-owned entity has identified 20 abandoned mines to undertake a feasibility study for pump storage projects. State-run NLC India Ltd also proposes to undertake feasibility study for pump storage plants for some of abandoned mines with it.
Pump storage plants use gravity to charge turbines using water that is pumped from reservoirs in coal pits to a higher reservoir and then used to move the turbine and generate power. Though pump storage plants are operational in the country by hydro power players, use of coal pit reservoir for this purpose has not been used so far.
Not only abandoned mines, such economic use of coal pit would also be tried for several de-coaled mines that may be over 200 in numbers. Milestone Alert!
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