Energy Efficiency Services (EESL) has invited bids for the installation of a 50 MW grid-connected solar project with a 10 MW/40 MWh battery energy storage system at the IB thermal power station in Jharsuguda, Odisha.

The scope of work includes design, engineering, supply, transportation, transit insurance, storage, installation, testing, commissioning, along with the associated internal pooling system, SCADA, energy management system, and plant boundary evacuation facilities at the site.

The last date to submit bids is June 30, 2026. Bids will be opened on the same day.

Bidders must submit ₹90.56 million (~$948,554) as the earnest money deposit.

The project must be completed within 18 months of the tender issuance.

Only Class-I Local suppliers with a minimum local content of 50% are eligible to bid.

Bidders must have a valid electrical contractor license or a valid authorization permitting execution of HT electrical works of 33 kV and above issued by a competent government authority of any state or the Central Government of India.

They should have successfully executed a single work order of at least ₹3.62 billion (~$37.92 million), or two work orders of value not less than ₹2.26 billion (~$23.67 million), or three work orders of value not less than ₹1.81 billion (~$18.96 million) during the last seven years.

Bidders must have successfully installed solar-plus-battery-storage hybrid projects integrated with a bi-directional power conditioning system and inverter, and capable of AC charge-discharge operation during the last seven years.

Alternatively, they must have installed a grid-connected battery energy storage system, integrated with a bidirectional power conditioning system and an inverter, capable of AC charge-discharge operation, that has been operational for one year prior to bid opening.

Bidders may also qualify if they have successfully executed at least one power infrastructure project in the generation or transmission sector under a single contract having a contract value not less than ₹3.62 billion (~$37.92 million) during the last seven years, which must have been operational for one year prior to the bid opening date.

Bidders should have an average annual turnover of at least ₹1.36 billion (~$14.24 million) during the last three financial years, and liquid assets or access to credit facilities of not less than ₹758.4 million (~$7.94 million).

The net worth of bidders in the immediately preceding financial year should be at least 100% of the paid-up share capital.

Solar modules for the project must be from the Approved List of Models and Manufacturers (ALMM) List I, and solar cells must be from ALMM List II.

The solar system, battery energy storage system, evacuation systems, and plant control architecture should be engineered as a single integrated hybrid generating system rather than as isolated or independent subsystems.

Last month, EESL issued an expression of interest for feasibility studies and detailed project reports for ground-mounted, rooftop, and floating solar projects across India.

Earlier, EESL invited bids for a rate contract to supply approximately 1,000 MWp of domestic-content requirement-compliant crystalline solar modules with a power rating of 540 Wp or above across India.

Subscribe to Mercom’s India Solar Tender Tracker to stay on top of real-time tender activity.