A newly commissioned meter may require activation or key-change tokens before the energy token. Enter every token exactly in the sequence supplied by the DisCo, waiting for acceptance after each one.
The sequence varies by meter and commissioning state. Do not assume the 20-digit energy token should always be entered first.
The essentials
- Meter number on the installation form and receipt.
- Whether the installer completed commissioning and pairing.
- Labels for activation, KCT1, KCT2 and energy tokens.
- Any older unused energy tokens that the DisCo says must be loaded first.
What to check first
Start with the evidence already in front of you. A precise account, meter, product or safety detail is more useful than guessing from the outcome alone.
- Meter number on the installation form and receipt.
- Whether the installer completed commissioning and pairing.
- Labels for activation, KCT1, KCT2 and energy tokens.
- Any older unused energy tokens that the DisCo says must be loaded first.
Step by step
Work through the existing transaction, account or installation in order. Keep the reference and result from each step before moving to the next.
- Power and pair the CIU or use the integrated keypad as instructed.
- Enter activation tokens in the supplied order if present.
- Enter KCT1 and KCT2 in order when issued.
- Enter the new energy token only after the earlier tokens are accepted.
Mistakes to avoid
These shortcuts often turn a traceable problem into a second payment, a lost evidence trail or a safety risk.
- Mixing tokens from two different meters.
- Skipping an activation or key-change token.
- Buying repeated energy tokens while the meter is not commissioned.
When to escalate
Give the DisCo the meter number, installation date, installer record, every token label and exact display response. Do not publish usable token digits online.
Frequently asked
Why did my first energy token reject?
The meter may still require commissioning, activation or key-change tokens, or the token may be for the wrong meter. Confirm the official sequence.
Can I reuse an activation token?
Once accepted, a meter normally records a token as used. Keep the receipt, but do not repeatedly enter accepted tokens.
Research sources
Official guidance, product information and public sources were reviewed on 27 July 2026.