NTPC Vidyut Vyapar Nigam Ltd (NVVN)’s tender for 1,000 MWh (500 MW x 2 hours) of standalone battery energy storage systems (BESS) with viability gap funding in Rajasthan has resulted in winning prices ranging from INR 2.16 lakh/MW/month to INR 2.19 lakh/MW/month.
Solar91 Cleantech secured its full bid capacity of 50 MW/100 MWh by quoting the lowest tariff of INR 2.16 lakh/MW/month. Other winners include Stockwell Solar Services (450 MWh), Oriana Power (250 MWh), Rays Power Experts (100 MWh) and INOX Renewable Solutions (100 MWh).
The projects will be implemented on a build-own-operate (BOO) basis, with the BESS made available to NVVN for charging and discharging on an on-demand basis, as per the requirements of the end procurer, Rajasthan Urja Vikas and IT Services Ltd, during peak and off-peak hours.
The entire 1,000 MWh of storage capacity will be set up at generating stations owned by Rajasthan Urja Vikas and IT Services Ltd.
Each BESS will be required to support two full charge-discharge cycles per day.
NVVN, acting as the BESS Implementing Agency (BIA), will sign a 12-year battery energy storage purchase agreement (BESPA) with the selected developers. Charging power for the BESS will be supplied by Rajasthan Urja Vikas and IT Services Ltd.
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