Transmission Settlements FAQ 

Where can I get a description of the Transmission Settlement Schedules?
For a complete description of the Transmission Schedules please see Section 2.1 "Transmission Schedules and Descriptions" of the Transmission Settlements BPM.

What is a Schedule 11 charge?
Charges that may not be easily identified and associated with a particular schedule are most likely for Schedule 11 Wholesale Distribution Service or also known as “Pass Through” charges. These pass through charges are identified in the customer’s Monthly Charge (MC) file on the “Pass Through” tab. A brief description identifies the charge of which could be for many reasons. Most commonly, charges are due to “Peak Load” adjustments or could be for a prior period adjustment due to FERC orders which may affect one or more customer schedules. We try to provide as much detail as we can such as affected schedule, billing cycle month and year and include FERC Order number, if applicable.

Also, the MISO passes-through some charges submitted by the Transmission Owners and they are included directly on the Transmissions Customer’s monthly bill. The Pass-Through charge appears as a Schedule 11 line item on the Non-Trust Invoice which is comprised mainly of ancillary services that are mandatory for all customers who utilize transmission service from the Midwest ISO.

How do I recalculate the different charges and revenue?
See these examples for help calculating monthly charges and monthly revenue:

Monthly Charge Example
Monthly Revenue Example

Where are the associated rates for the transmission schedules?
Go to the OASIS for transmission rates. They are on the General Information page under the Business Practice column.

How do I see my invoices?
Transmission Settlements invoices are sent out by the MISO via e-mail if a charge is incurred on the 5th business day of the month following service. Three invoices are normally sent: one containing TO Trust charges, one containing Non-TO Trust charges and one containing Schedules 10, 23, and 35 charges.

How do I get the details behind the invoices?
The monthly charge (MC) file is sent along with the invoices via e-mail. 

What are the differences between the TO Trust and Non-TO Trust on customer invoices?
The TO Trust invoice includes basic transmission charges (Schedules 7, 8, 9, 26 and 33). The Non-TO Trust invoice includes ancillary services and wholesale distribution (Schedules 1, 2 and 11).

I am a market participant\customer.  Why did I receive an Open Invoice Status Report?
If a Transmission Customer receives an Open Invoice Status Report, this is the trigger that they are due revenue from a prior period adjustment. To find the detail behind this payment, access the FTP site and choose the Outgoing folder. There you will find Monthly Revenue (MR) file in Excel format. Download the file you need then select the “Pass Through” tab at the bottom of your screen.

When can I expect to see my invoice for transmission service I purchased last month?
Invoices are sent out on the 5th business day of the month following service. Example: June, 2010 transmission service will be billed on the 5th business day of July, 2010, or July 8, 2010. See the current billing schedule calendar.

I don’t agree with my invoice, how do I submit a dispute?
Please fill out and return the dispute form.

How do I gain access to the FTP site?
Market participants received a username and password for the site following their completion of the MISO registration process. If you require a username and password, please contact Customer Registration  or get directions for accessing the website.

What if I am having technical issues with the FTP site?
Please contact the Midwest ISO IT Help Desk at 1-866-626-6476.

What is the deadline for submitting Monthly Peak load data?
Transmission Owners must submit Monthly Peak load data by noon of the 3rd business day of the month in order for it to be incorporated into the billing cycle.

What happens if I miss the deadline for submitting my peak load data?
Contact Transmission Settlements via e-mail if you are unable to meet this deadline. If no data is received, the prior month’s data will be used and trued-up after-the fact.