Is my ESID the same as my meter number or account number?
No. They are three different numbers. Your ESID identifies the point where power is delivered to your address. Your account number identifies your account with your retail electric provider. A meter number identifies the physical meter. Texas rules require your bill to show the ESI ID and the account number.
The three numbers side by side
| Number | What it identifies | Required on a Texas bill? |
|---|---|---|
| ESID (ESI ID) | The point of delivery, in the systems ERCOT or another independent organization manages | Yes, per 16 TAC §25.479 |
| Account number | Your account with your retail electric provider | Yes, per 16 TAC §25.479 |
| Meter number | The physical meter | Bills vary. Not every bill lists it. |
Where to find it on your bill
Look for the labels "ESI ID" and "Account number." They appear with your service address. Layouts differ from bill to bill, so scan for the labels.
Example only. Not a real bill.
| Label | Example |
|---|---|
| Account number | (the number your provider gave your account) |
| ESI ID | (a long number identifying your point of delivery) |
Why the difference matters
A form that asks for an ESID wants the point-of-delivery identifier. It does not want your account number. Read the label on the form, then match it to the label on your bill.
Common Questions
Which of these numbers does my bill show?
Texas rules require your bill to show your ESI ID and your account number. Some bills also show a meter number. Check your own bill.
What does an ESID identify that the others do not?
The point of delivery. That is the place where electricity is delivered, not a person or a company. Your account number is your provider's number for your account.
How do I look up my ESID?
Enter your Texas service address in our ESID lookup. It uses ERCOT's public registry data. It is free and needs no account.
Is a meter number the same as an ESID?
No. A meter number identifies a physical meter. An ESID identifies a point of delivery.
Related Questions
- What is an ESID (ESI ID) and where do I find it?
- How do I read my Texas electric bill?
- What is a TDU (utility) in Texas?
Want to see what is on your own bill? Check my bill. Automated estimate from your uploaded bill. Not a substitute for your actual bill; details may be misread.
Sources
- 16 TAC §25.5, Definitions (item 41, "Electric service identifier (ESI ID)"), Public Utility Commission of Texas, retrieved 2026-10-05
- 16 TAC §25.479, Issuance and Format of Bills (subsection (c)(1)(D)), Public Utility Commission of Texas, retrieved 2026-10-05
- TDSP ESI ID Extract (ERCOT data product ZP15-612, audience: Public), Electric Reliability Council of Texas, retrieved 2026-10-05