New Delhi, Oct. 13 -- The Delhi Metro Rail Corporation (DMRC) has invited bids for the supply of 500 million units (MU) of renewable energy annually to power its operations, officials said on Sunday.

According to an official statement, the DMRC plans to select a solar power developer to establish a grid-connected captive generating plant equipped with a battery energy storage system (BESS) at any location across India, reported Business Standard.

The power generated will be supplied to DMRC under a 25-year power purchase agreement (PPA), with the project expected to be completed within 15 months of the award.

At present, Delhi Metro meets around 33 per cent of its total electricity demand fr0m renewable sources.

It procures approximat...