NTPC Renewable Energy (NTPC REL) has floated two tenders inviting bids to supply the balance-of-system (BoS) for 2,100 MW of grid-connected solar projects in Andhra Pradesh.

The last day to submit bids is June 5, 2026. Bids will be opened on the same day.

The scope covers the complete BoS execution for grid-connected solar projects, excluding the supply of solar modules. It includes the design, engineering, manufacturing, supply, transportation, installation, testing, and commissioning of the projects.

Selected bidders are responsible for foundation design and erection of tracker-based module mounting structures, module installation and interconnection, and construction of inverter or HT switchgear rooms. Electrical scope includes all equipment and works required for grid interfacing, such as transformers, panels, protection systems, cabling, metering, and evacuation up to the 33 kV pooling switchgear, along with HT cable supply and termination.

The package also includes SCADA and weather-monitoring systems, dynamic reactive power compensation, harmonic filters, CCTV-based monitoring, and module-cleaning systems.

Selected bidders must provide three years of comprehensive operation and maintenance after commissioning, along with spares.

Anantapur Tender

The Anantapur tender is for a 1,200 MW BoS package, structured as two 450 MW blocks and one 300 MW block.

Bidders must submit the following bid security deposits:

• They must submit ₹50 million (~$525,817) for the 300 MW block
• They must submit ₹100 million (~$1.05 million) for a single 450 MW block or a combined 750 MW block
• They must submit ₹200 million (~$2.10 million) for 900 MW or the full 1200 MW package

Bidders must have designed, supplied, erected, supervised the erection, commissioned, and supervised the commissioning of the BoS for solar projects with a minimum capacity of 40 MW. One of the projects must be 10 MW in size, operational for at least six months, and located on a single site.

Alternatively, the bidder must be a developer of solar projects with a minimum capacity of 40 MW. One of the projects must be at least 10 MW, operational for at least 6 months, and located on a single site.

Alternatively, the bidders must have executed a single project amounting to the following minimum financial figure as a developer or an EPC contractor in power/ steel/ oil and gas/ petrochemical/ fertilizer/cement/coal mining, including coal handling plant and/ or any other process industry:

• 300 MW project of ₹530 million (~$5.57 million)
• 450 MW project of ₹795 million (~$5.57 million)
• 750 MW project of ₹1.32 billion (~$13.93 million)
•  900 MW project of ₹1.59 billion (~$16.72 million)
• 1200 MW project of ₹2.12 billion (~$22.30 million)

The project must have been operational for at least 6 months in the renewable energy sector and at least 1 year in the non-renewable energy sector.

Additionally, the bidder must have executed at least one electrical substation at 33 kV or above, with circuit breakers and a power transformer.

Bidders must demonstrate an average annual turnover over the last three financial years aligned with the bid capacity, set at about ₹530 million (~$5.57 million) for 300 MW, ₹795 million (~$8.36 million) for 450 MW, ₹1.325 billion (~$13.93 million) for 750 MW, ₹1.59 billion (~$16.72 million) for 900 MW, and ₹2.12 billion (~$22.30 million) for 1200 MW.

The bidder’s net worth must be at least equal to its paid-up share capital as of the last financial year.

Kurnool Tender

The Kurnool tender is for a 900 MW BoS package, structured as one 500 MW block and one 400 MW block.

Bidders must submit the following bid security deposits:

• They must submit ₹50 million (~$525,817) for the 400 MW block
• They must submit ₹100 million (~$1.05 million) for the 500 MW block
• They must submit ₹200 million (~$2.10 million) for the full 900 MW package

Bidders must have designed, supplied, erected, supervised the erection, commissioned, and supervised the commissioning of the BoS for solar projects with a minimum capacity of 40 MW. One of the projects must be 10 MW in size, operational for at least six months, and located on a single site.

Alternatively, the bidder must be a developer of solar projects with a minimum capacity of 40 MW. One of the projects must be at least 10 MW, operational for at least 6 months, and located on a single site.

Alternatively, the bidders must have executed a single project amounting to the following minimum financial figure as a developer or an EPC contractor in power/ steel/ oil and gas/ petrochemical/ fertilizer/cement/coal mining, including coal handling plant and/ or any other process industry:

• 400 MW project of ₹710 million (~$7.47 million)
• 500 MW project of ₹887.5 million (~$9.33 million)
• 900 MW project of ₹1.59 billion (~$16.80 million)

The project must have been operational for at least 6 months in the renewable energy sector and at least 1 year in the non-renewable energy sector.

Additionally, the bidder must also have executed at least one 33 kV or above electrical substation with circuit breakers and a power transformer.

Bidders must demonstrate an average annual turnover over the last three financial years aligned with the bid capacity, set at about ₹710 million (~$7.47 million) for 400 MW, ₹887.5 million (~$9.33 million) for 500 MW, and ₹1.59 billion (~$16.72 million) for 900 MW.

The bidder’s net worth must be at least equal to its paid-up share capital as of the last financial year.

Recently, NTPC REL invited bids for the EPC of 900 MW solar projects at Mandsaur, Madhya Pradesh.

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