NTPC Renewable Energy has invited bids for a balance of system (BoS) package with land for interstate transmission system (ISTS)-connected solar projects of up to 1,000 MW anywhere in India except Rajasthan, with a greenshoe option for an additional 500 MW. The winning bidder will also be responsible for the comprehensive operation and maintenance of the systems for three years. The deadline for bid submissions is March 21, 2023. Bids will be accepted and opened on the same day. The bid documents are priced at Rs. 22,500. ($275). Bidders must have previously completed the BoS for solar projects with a combined capacity of at least 40 MW, at least one of which must have been a 10 MW project at a single location. Prior to the opening of bids, the reference project has to be in operation for at least six months. Bidders who have contracted for at least one solar project with a capacity of 10 MW or greater at a single location, and who have contracted for solar projects with a cumulative capacity of at least 40 MW, may also submit their offers. Prior to the opening of bids, the reference project has to be in operation for at least six months. Alternatively, bidders should have, in the last ten years, executed an industrial project either as a developer or an EPC contractor in the area of power, steel, oil & gas, petrochecmical, fertilizer, cement, or any other process industry of a minimum value of Rs 1 billion ($12.26 million) for a total quoted capacity up to 300 MW, Rs 3.05 billion ($37.4 million) for 300 MW to 600 MW, Rs 7.01 billion ($85.94 million) for 600 MW to 900 MW and Rs 13.2 billion ($161.83 million) for 900 MW up to 1,200 MW. Additionally, they must have previously built at least one electrical substation with a voltage level of 33 kV or higher, which included components like power transformers and circuit breakers, and which had to have been operational for at least a year prior to the bid opening date. For a total quoted capacity of up to 300 MW, the average annual turnover of bidders in any three of the previous five financial years should not be less than Rs 1 billion ($12.26 million), Rs 3.05 billion ($37.4 million), Rs 7.01 billion ($85.94 million), Rs 13.2 billion ($161.83 million), and so forth. On the last day of the prior fiscal year, they should have a positive net worth. Earlier this month, Gujarat-based wind power projects with a 1,000 MW capacity and ISTS connectivity were put up to bid by NTPC Renewable Energy. See also: Tripura Govt and NTPC REL sign agreement to build green energy projectsBalance of System tender floated by NTPC for wind project in Gujarat