Detailed letter of award will be issued by MSEDCL upon obtaining necessary approval from the Maharashtra Electricity Regulatory Commission (MERC) in terms of the tender document on the quoted tariff, it said. The pumped hydro storage project will supply power to MSEDCL for 40 years as part of the deal, it said. Under the Pumped Hydro Energy Storage Facility Agreement (PHESFA), the company shall make available to MSEDCL a contracted capacity of 1,500 MW capable of scheduled discharge of eight hours (with maximum continuous five hours) per day.

Increased penetration of solar and wind in electricity generation will create the need for energy storage solutions for providing firm, reliable and dispatchable renewable energy power, the company said, adding that it has identified PSP sites in multiple states.