Solalite Power (O2 Power), Sprng Energy, ACME Cleantech Solutions, Juniper Green Energy, and Avaada Energy were declared winners in NTPC’s auction to set up 1,500 MW of interstate transmission system (ISTS)-connected wind-solar hybrid power projects anywhere in India.

Solalite Power and Sprng Energy quoted the lowest tariff of ₹3.35 (~$0.0402)/kWh to win 300 MW and 250 MW, respectively. ACME and Juniper Green won 300 MW and 230 MW by quoting ₹3.36 (~$0.0404)/kWh. Avaada Energy won 24 MW out of the quoted capacity of 300 MW at ₹3.37 (~$0.0405)/kWh.

Out of the total 1,500 MW bid capacity, only 1,104 MW was allotted.

According to Mercom sources, the aggregate bids received were for only 1,380 MW. The auction capacity was reduced accordingly to 1,104 MW. It was calculated as aggregate bid capacity x 0.8.

NTPC had floated the tender in October this year.

A power purchase agreement will be signed between NTPC and successful bidders subject to the signing of a power sale agreement with the state distribution companies for the identified capacity.

The tender specified that only commercially established and operational technologies should be used to minimize the technology risk and to achieve the timely commencement of power supply from the projects.

Only type-certified wind turbine models listed in the Revised List of Models and Manufacturers should be used for the projects.

NTPC has mandated the use of solar modules from the Approved List of Models and Manufacturers issued by the Ministry of New and Renewable Energy.

The selected developers will be responsible for setting up the ISTS connectivity for the projects.

The hybrid power generator should maintain an energy supply to achieve an annual supply corresponding to the annual capacity utilization factor (CUF) of not less than 80% of the declared value and not more than 120% of the declared CUF value during the PPA duration of 25 years.

Recently, NTPC Renewable Energy invited bids for land and an extra-high-voltage transmission system package to develop ISTS-connected solar power projects of up to 800 MW capacity in Maharashtra.

According to Mercom’s India Solar Tender Tracker, NTPC has issued 3.83 GW of tenders for solar-wind hybrid projects to date.