The Central Electricity Authority (CEA) on June 22, 2026, issued the Central Electricity Authority (Technical Standards for Construction of Electrical Plants and Electric Lines) Amendment Regulations, 2026 to further amend the Central Electricity Authority (Technical Standards for Construction of Electrical Plants and Electric Lines) Regulation, 2022.
The following has been stated:
In regulation 2, in sub-regulation (1), after clause (f), the following clauses shall be inserted, namely:
‘(fa) “battery container” means a container which houses the components such as module, rack, battery management system, thermal management system, safety system and control system;
(fb)“battery energy storage system” means a stationary system connected to the electricity system which is used to store electric energy by means of electrochemical materials, typically includes batteries, power conversion system, and battery management system;
(fc) “battery energy storage system energy capacity” means the product of the rated output power and the output duration time at this rated power, expressed in kWh or MWh, measured at metering point, at the time of commissioning of the battery energy storage system;
(fd) “battery energy storage system power capacity” means the maximum amount of power, expressed in kW or MW, that a battery energy storage system can deliver at delivery point at any given moment;
(fe) “battery management system” means a system which controls the batteries in order to obtain safe operation, and also balances the energy of batteries and monitors the status thereof;
(ff) “battery module” means a string of series connected cells placed in a casing;
In regulation 2, in sub-regulation (1), after clause (i) the following clauses shall be inserted:
‘(ia) “c rate” means the rate at which a battery charges or discharges relative to its maximum energy capacity;
(ib) “cycle” means the charging of a battery from its depth of discharge level to its peak charging level and again discharging to its depth of discharge level;
This will come into force on April 01, 2027.
Please refer to the document attached below for more details.
[F. No. CEA-TH-17/1/2021-TETD Division]
