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Onward Solar Signs BESPA with GRIDCO for 45 MW/180 MWh BESS Projects in Odisha

Onward Solar Power has signed a battery energy storage purchase agreement with GRIDCO for developing 45 MW/180 MWh of standalone battery energy storage projects in Odisha.

June 10, 2026. By Mrinmoy Dey

Onward Solar Power has announced that the company has signed a battery energy storage purchase agreement (BESPA) with GRIDCO for 45 MW/180 MWh standalone BESS projects in Odisha.

The company secured the capacity at Solar Energy Corporation of India’s (SECI) auction held in March 2026 for setting up six standalone battery energy storage systems (BESS) in Odisha with a cumulative capacity of 125 MW/500 MWh.

The company won 2 projects with a cumulative capacity of 45 MW/180 MWh at a tariff of INR 3.75 lakh/MW/month. While 25 MW/100 MWh must be connected at Narendrapur Grid Sub-Station (GSS), another 20 MW/80 MWh must be connected at Tentuli Khunti GSS in Odisha.

The projects must be set up under a build-own-operate (BOO) model. The BESSD must set up, operate and maintain a BESS, with the primary objective of making the energy storage facility available to the GRIDCO for charging/discharging of the BESS, on an 'on demand basis.

The projects will be eligible for viability gap funding (VGF) support at INR 18 lakh/MWh.

Land identification and allocation for the projects will be under the scope of the GRIDCO/OPTCL owning the identified substations. Land will be provided on a right-to-use basis to the BESSD.

Setting up of the BESS and interconnection of the BESS with the STU network, including the construction of the new bay and safety of the equipment/personnel, will be under the scope of the BESSD.

Scheduling for charging and discharging of the BESS system will be under the scope of the SLDC/GRIDCO. The BESS must be charged by drawing power from the OPTCL network and discharged by injecting power into the OPTCL network.

The BESSD must guarantee a minimum system availability of 95 percent on an annual basis.

The application software of the energy management system (EMS) of the BESS must be developed indigenously within India. The use of refurbished or second-hand battery cells in the project is strictly prohibited.

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BESS projects in Odisha