It is therefore asking pumped storage developers to provide long-term grid-connected energy storage capacity of 1,000 MW/8,000 MWh (for eight hours of discharge, with a maximum five hours continuous of discharge per day) from pumped hydro storage plants anywhere in India on an on-demand basis for a period of 40 years.
The developers will be selected through tariff-based competitive bidding.
MSEDCL will sign energy storage facility agreements on an annual fixed-charge basis with the selected bidders for a period of 40 years.
The contracted capacity will be provided by the developer on a build-own-operate-maintain (BOOM) basis. The developer will be responsible for financing, development, design, engineering, procurement, construction, commissioning, operation, and maintenance of the storage capacity.
In a separate tender, MSEDCL has started accepting bids from developers to supply 5 GW of solar from PV plants in any part of the country. It will enter into power purchase agreements with the solar developers selected through competitive bidding, for a total capacity of 5 GW.
MSEDCL said that tying up large-scale capacity in one step with an optimal mix will lead to better rates and attract potential coal-based power generators to meet their obligations