ESI ID Lookup
Find your utility provider.
Enter your service address below to look up your ESI ID — the 17-digit number you need to switch electricity providers in Texas.
Look up your ESI ID
Enter your service address on EnergyBot's free lookup tool to find your 17-digit ESI ID instantly.
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Frequently asked questions
What is an ESI ID?
Your Electric Service Identifier (ESI ID) is a 17-digit number tied to your physical meter. It identifies your specific service location within the Texas deregulated electricity market.
Why do I need it?
When switching electricity providers, your new REP uses the ESI ID to locate your meter and complete the transfer. Without it, the switch can be delayed or fail.
Where else can I find it?
It's printed on your current electricity bill, usually labeled 'ESIID' or 'ESI ID'. You can also find it on SmartMeterTexas.com using your service address.
Does switching affect my service?
No. Your lights, outlets, and appliances stay on throughout the transfer. Only the billing company changes — the physical power lines are always operated by your local utility.
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