The 20-MW (40 MWh) BESS installed at the BRPL (BSES Rajdhani Power Limited) substation is also India’s “first commercially approved” utility-scale energy storage system .
- It leverages advanced Lithium Iron Phosphate (LFP) technology known for superior safety, thermal stability and durability.
- In Lithium–iron phosphate (LiFePO4) batteries, cathode is made of lithium metal phosphate instead of lithium metal oxide.
Battery Energy Storage Systems (BESS)
- About: Electrochemical Energy Storage Systems that stores electrical energy from renewables in the form of chemical energy to be used during peak demand.
- Significance: Cater to Future needs (236 GWh BESS would be required by 2031-32 as per National Electricity Plan, 2023); smooth renewable energy fluctuations, etc.
- Two Main Categories
- Traditional Solid Rechargeable Batteries: Stores Energy in solid metal electrodes, Examples:
- Lead Acid Batteries (Anode- lead, Cathode- Lead dioxide)
- Lithium Ion Batteries [Anode- Graphite, Cathode- Lithium Oxide (LiMO2; M=Co, Ni)]
- Zinc Air Batteries (Anode- Zinc, Cathode- Air/Oxygen).
- Sodium Sulphur (NaS) (Anode- Sodium, Cathode- Sulfur).
- Flow batteries: Energy is stored in flowing liquid electrolytes kept in tanks separately. Example, vanadium redox flow batteries, zinc-iron flow batteries, zinc-bromine batteries, etc.
- Traditional Solid Rechargeable Batteries: Stores Energy in solid metal electrodes, Examples:
Other Initiatives taken
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