
An ESID, or Electric Service Identifier, is a unique number that helps utility companies enroll customers, switch energy providers, and meter usage. It is crucial for managing your energy services, especially if you live in a deregulated area. You can find your ESID on your electricity bill or by using a lookup tool online. Knowing your ESID can help you take advantage of Texas' Power to Choose program to find competitive electricity rates. If you are unable to locate your ESID, it may be because your meter is new and has not been set up yet, or you may need to check with your Retail Electric Provider (REP).
| Characteristics | Values |
|---|---|
| What is an ESID? | ESID stands for Electric Service Identifier, also referred to as ESI ID or ESI-ID. |
| Why is it important? | It is a unique number assigned to your property address, acting as a social security number for your electric meter. |
| Where can I find it? | It is not visible on your meter but can be found on your electricity bill. You can also use various free online lookup tools. |
| When do I need it? | You need your ESID when shopping for electricity plans or energy providers, especially if you live in a deregulated area. |
| How do I use it? | Your ESID will tell you which utility company delivers electricity to your property. You can then use Texas's Power to Choose program to shop for competitive electric rates. |
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What You'll Learn

Find your ESID/ESI ID number on your electricity bill
An ESID (Electric Service Identifier) is a unique number assigned to a "Service Delivery Point". It is used by utility companies to enrol customers, switch energy providers, and meter usage. While the ESID is not visible on your meter, you can find it on your electricity bill, usually listed under your account number.
The ESID number is unique to your property address and is sometimes referred to as an ESIID, ESI ID, or ESI-ID. It is a 17 or 22-digit number, with the first two digits always being 10. The next five digits are the Department of Energy TDSP ID, which determines your utility provider. The remaining digits identify your unique home or business meter.
If you are unable to locate your ESID on your electricity bill, you can use a free online ESID Lookup Tool. These tools are updated daily and can identify ESID numbers for both residential and business addresses. You simply need to enter your address, and the tool will provide your ESID, the type of meter, your electric utility company, and nearby electricity providers.
Knowing your ESID is essential when shopping for electricity plans or setting up new electricity services. It ensures you receive accurate pricing based on your location and helps energy providers connect the service to your meter. Additionally, your ESID is necessary to take advantage of Texas' Power to Choose program, which offers competitive electricity rates.
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Use an online ESID Lookup Tool
An ESID, or Electric Service Identifier, is a unique number assigned to a physical address to help utilities and energy providers enrol customers in energy plans, switch energy providers, and meter usage. This number is not visible on your meter but can be found on your electricity bill, usually listed under your account number.
If you are unable to find your ESID number on your bill, you can use an online ESID Lookup Tool. These tools are typically free to use and do not require registration. You can find one on the websites of electricity retailers and third-party sources. To use the tool, simply enter your address, and the tool will display your ESID, the type of meter, your electric utility company, and electricity providers near you.
It is important to note that each utility delivery company uses a different number sequence at the beginning of the ESID. The first two digits of your number will always be 10, and the next five numbers will determine your utility provider.
By knowing your ESID, you can take advantage of Texas' Power to Choose program to find competitive electricity rates. This program is a state-operated website that displays electricity rates from energy suppliers in deregulated areas.
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Understand what your ESID number means
Understanding what your ESID number means is essential if you want to be in control of your electrical power. ESID stands for Electric Service Identifier, and it is a unique 17- or 22-digit number assigned to your electric meter(s). It is essentially a social security number for your meter and is used by the local utility to identify your house, apartment, and service territory. If you have multiple meters, you will also have multiple ESIDs.
Your ESID is not listed on your meter, but you can find it on your electricity bill. Each delivery company has a different numbering system, which can be identified by the starting digits on the bill. For example, the ESID for CenterPoint begins with 1008, Oncor with 1044, and Nueces Electric Coop with 1013. If you are purchasing a property, you can ask your real estate agent for a copy of the latest bill.
In addition to finding your ESID on your bill, you can also use online lookup tools. These tools will ask for your address and zip code and will quickly retrieve your ESID. Knowing your ESID is crucial if you are shopping for electricity plans or switching providers, as it helps energy companies identify where to deliver electricity.
Once you know your ESID, you can use it to determine which Retail Energy Providers (REPs) or energy suppliers can service your address. Conversely, energy companies can use your ESID to learn which utility company services your address. This is especially important as rates vary based on utility companies. Your ESID also enables your energy provider to set up your electricity service, transfer energy providers, and meter your electric usage, making the process faster, easier, and more efficient.
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Learn how to read your electric meter
Reading your electric meter can tell you many things, such as the effect of a new appliance on your consumption, how well you're conserving energy, or even the effect of the weather on your usage. You may want to keep daily, weekly, or monthly records.
Your meter number is usually stamped or printed at the bottom of the faceplate in bold black numerals and can be up to ten digits long. Your meter might be located inside or outside. If your meter is not mounted outside where the power lines come into your home, check your basement, laundry room, porch, garage, closet, or attic. If you live in an apartment building, duplex, or other multiple-family dwellings, the meters for your building are grouped together in one place. Each meter should be labelled according to the unit it serves. Make sure you read the correct meter. If the meters are not labelled, check with your apartment manager or landlord to determine the correct meter for your dwelling.
The standard electric power meter is a clock-like device driven by the electricity moving through it. As the home draws current from the power lines, a set of small gears inside the meter move. The number of revolutions is recorded by the dials that you can see on the face of the meter. The speed of the revolutions depends on the amount of current drawn—the more power consumed at any one instant, the faster the gears will rotate.
When reading an electric meter, read and write down the numbers as shown on the dials from right to left. When the pointer is directly on a number, look at the dial to the right. If it has passed zero, use the next higher number. If it has not passed zero, use the lower number. Record the numbers shown by writing down the value of the dial to your extreme right first and the rest as you come to them. Should the hand of a dial fall between two numbers, use the smaller of the two numbers.
Some newer electric meters use digital displays instead of dials. The difference between one month's reading and the next is the amount of energy units that have been used for that billing period.
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Contact your electricity supplier or Transmission and Distribution Utility (TDU)
Transmission and Distribution Utilities (TDUs) are responsible for delivering electricity to your home or business. They manage the physical infrastructure, including wires, cables, power lines, transformers, and more, that transmits and distributes electricity. They are also the ones you call when your power goes out.
In Texas, the market is divided into groups of companies with different responsibilities. The TDUs are funded by pass-through fees that are assessed on every electricity bill. Electricity providers usually break these charges out as separate line items on your bill. Although some bundled electricity rate plans don’t list TDU charges separately because they are accounted for in the overall rate they charge you.
There are two types of TDU pass-through charges that will appear on your electric bill every month: Flat-rate TDU fees, which are a fixed dollar amount each ESID (meter) is charged regardless of usage; and Per kWh fees, which increase with greater electricity usage. In addition to the monthly pass-through fees, TDUs also charge fees for turning on your power or switching you to a new provider. These are called Move In or Switch fees.
The ESID number is a 17 or 22-digit number unique to your address. It helps utility companies enroll customers, switch energy providers, and meter usage. It is sometimes referred to as an ESIID, ESI ID or ESI-ID. While the ESID number doesn’t appear on your physical meter, you can find it on your electricity bill or look it up for free using an ESID Lookup Tool.
If you are unable to find your ESID number using the tool, it's most likely that your service location or meter is new and hasn't been set up yet. Contact your electricity supplier or TDU to help you get your meter set up and your power on.
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Frequently asked questions
ESID stands for Electric Service Identifier. It is a unique number assigned to your property address. It helps utility companies enrol customers, switch energy providers, and meter your usage.
You can find your ESID on your electricity bill. It is a 17- or 22-digit number that begins with 10. You can also use an ESID Lookup Tool, which is free and requires no registration.
Your ESID is needed to set up electricity service and track energy usage at your address. Energy providers use it to connect the service to your meter and determine which utility company delivers electricity to your property.
If you can't find your ESID using a Lookup Tool, it may be because your meter is new and hasn't been set up yet. You can contact your electricity supplier or Transmission and Distribution Utility (TDU) for assistance.








