Cut quote time
Resolve addresses before pricing, enrollment, or service territory handoff.
Electric Service Identifier
The premise key Texas energy teams actually work from.
An Electric Service Identifier is a 17 to 22 digit number ERCOT uses to identify a specific premise on the Texas grid. Esiid turns address resolution, bulk lookup, and API delivery into one operational workflow.
11.4M
premises indexed
7
Texas TDUs
<100ms
P95 lookup
Use cases
Built for the teams that need a verified premise fast.
Prospect by load
Qualify premises with TDU, meter, profile, and power-region context.
Bulk enroll
Upload CSVs, preserve audit history, and export clean ESIID matches.
Premise review
Support real estate and diligence workflows with reliable grid identifiers.
Sample data
The fields your internal systems expect.
JSONCSVParquet
| ESIID | Address | TDU | Meter | Load | Status |
|---|---|---|---|---|---|
| 10204200098765432 | 2200 Buffalo Speedway, Houston | CenterPoint | AMI | Profile RES | Active |
| 10443720008821104 | 700 Congress Ave, Austin | Oncor | Smart meter | Profile BUS | Pending |
| 100890102380091771 | 1901 N Central Expy, Plano | TNMP | AMI | North zone | Active |
Pricing
Start with lookup volume. Add API access when you need it.
Starter
$10 / mo
20,000 lookups per month for teams validating addresses and exporting ESIID matches.
- Web search
- Bulk CSV lookup
- CSV export
Growth
$20 / mo
50,000 lookups per month for brokers, solar teams, and retail operations.
- Everything in Starter
- Saved lists
- Usage history
API
$50 / mo
500,000 lookups per month with API keys for automated address resolution.
- Everything in Growth
- API keys
- REST API access
API
REST and JSON with bearer auth.
Use POST /v1/resolve from Node, Python, or Go clients. Production endpoint language should be reviewed before launch.
resolve.json
curl -X POST https://api.esiid.io/v1/resolve \
-H "Authorization: Bearer $ESIID_API_KEY" \
-H "Content-Type: application/json" \
-d '{"address":"2200 Buffalo Speedway, Houston, TX"}'Product preview
A calmer way to resolve Texas premises.
Search, filter, inspect, and export ESIID records from one focused workspace.
FAQ
Operational notes before launch.
Where does the data come from?
Illustrative source language: ERCOT MarkeTrak feed plus TDU shapefiles. This should be reviewed before public launch.
How often does it refresh?
Designed copy states every 4 hours with a full nightly reload. Confirm importer cadence before launch.
What areas are covered?
Service is positioned for ERCOT-deregulated territory only. Non-ERCOT and compliance language should be reviewed.
Changelog
Recent product notes.
Bulk CSV lookup, active filter chips, export links that preserve search filters, and detail-rail field mapping are ready in this build.
Stop hand-pasting into MarkeTrak.
Resolve a Texas address, export clean premise data, or wire ESIID lookup into your own workflow.
Start free trial