How does ASD (Additional Security Deposit) is calculated in TNEB | ASD Notice in TNEB Calculation

  • The review of Additional Security Deposit is being made once in 2 years as per regulation 5(5)(i) of Tamil Nadu Electricity Supply Code. 
  • For the categories of consumer under bi-monthly billing, the Security Deposit is equivalent to three times of the monthly average of electricity charges for the preceding twelve months. If your average bill of last twelve months is 500 RS, then your ASD will be 1500 Rs.
  • For the categories of consumer under monthly billing, the Security Deposit is equivalent to two times of the monthly average of electricity charges for the preceding twelve months. If your average bill of last twelve months is 500 Rs, then your ASD will be 1000 Rs.
If you receive ASD notice in which your deposit amount is greater than the necessary amount, then you can adjust the additional amount in next bill by requesting in the respective TNEB office.

If your current deposit is less than the new ASD amount, then you need to pay the additional amount in the subsequent bill cyle or mentioned due date .