LOA - Historical Usage
- Go to ERCOT to download the letter of authorization (LOA) doc
- Complete the LOA.
- Submit to TNMP via fax or e-mail.
- E-mail is preferred: LOA@tnmp.com
- Fax: 469-484-8624
- We will e-mail the LOA back to you - with historical usage - within 3 business days.
Be sure to include the e-mail address to which we should return the LOA.