NTPC Tenders Inverter Transformer Package for a Solar Project in Maharashtra

The National Thermal Power Corporation Limited (NTPC) has invited bids for an inverter transformer package for the Solapur solar PV project in Maharashtra.

The scope of work includes the design, engineering, manufacturing, supply, packaging, testing, installation, and commissioning of inverter-transformer of minimum cumulative capacity of 23 MVA having an HV side voltage of 11 kV at Solapur.

The last date for the submission of bids is April 29, 2020, and the date of opening of the techno-commercial bid is April 29, 2020. Interested bidders will have to submit an amount of ₹200,000 (~$2,655) as the bid security amount.

Regarding the eligibility criteria, the bidder should have designed, manufactured, and supplied grid-connected inverters-transformers of 11 kV or higher voltage class for a cumulative capacity of 18 MVA or above capacity. The reference project from which the transformer of at least 5 MVA was supplied must have been in successful operation for at least six months.


To be financially eligible, the average annual turnover of the bidder should not be less than ₹23.7 million (~$314,616) during the last three financial years.

The net worth of the bidder on the last day of the preceding financial year should not be less than 100% of the bidder’s paid-up share capital. If the bidder is not able to satisfy the net worth criteria on its own, it can meet the requirement of net worth on the strength of its subsidiaries or subsidiaries of its holding company, whichever is applicable. In such a case, the net worth of the bidder and its subsidiaries or subsidiaries of its holding company should not be less than 100% of the paid-up capital.

Earlier, the NTPC had invited bids for a solar inverter package of 23 MW for the solar power project at Solapur in Maharashtra.

In December last year, NTPC invited bids for 500 MW of grid-connected solar projects under an engineering, procurement, and construction package in the state of Maharashtra. The projects under this tender could range anywhere between 100 MW and 500 MW. The scope of work included the design, engineering, manufacturing, supply, packaging, forwarding, transportation, installation, and commissioning of the projects on a turnkey basis.

Recently, the NTPC invited bids for the balance of system (BoS) package for the 735 (3×245) MW Nokh solar project in the state of Rajasthan. The scope of work includes the design, engineering, manufacturing, supply, packing, transportation unloading storage, installation, testing, and commissioning of solar projects, excluding the supply of solar PV modules.