Help/FAQs

Getting Started

Elements of Midwest ISO Corporate Web

The navigation is done through a notebook (like tabs) that is simple, intuitive, and gives a single browser view. There are also visual cues that change color as one navigates.

Markets

Locational Marginal Pricing, or LMP, provides price transparency for users of the wholesale bulk electric system. The price signals provided by LMP indicate the cost of conducting business based on current system conditions. LMP consists of three components - energy price (EC), congestion (MCC), and losses (MLC).

LMP Control Area Map

Also know as the "balloon" map, this feature provides a real-time map of the Midwest ISO footprint showing the largest generators, with their respective LMP values. This real time map uses the same data feeds as the real-time LMP to display regional LMP values. Generators with the largest load were selected within the Midwest ISO footprint is are represented as a circle with the size and color dependent on their respective prices.

Downloadable Market Data

This feature provides the ability to download XML files fror data sources available in tabular format on the Market Information section of the site. The following items have been identified for the download option:

Commercial Pnodes list

LMP values for the current 5-minute, last hourly integrated and hourly day-ahead increment

Total load values for the current 5-minute and hourly day-ahead increment

Current emergency notifications

Current binding constraints

Market Info

Market Information section serves as one of the information points for customers of the wholesale bulk electric system. This information is an indicator of current and expected activity on the grid. Also available on this section are general information and news about the Midwest ISO Market.

Currently, the following market data are available in the Market Information section:

Day-Ahead Binding Constraints

This feature provides an online tabular view of day-ahead binding constraints.

Emergency Notifications

This feature provides the recent emergency notfications.

LMP Contour Map and Data Table

This feature provides a real-time map of the Midwest ISO footprint showing the selected generators with the largest load and the Midwest ISO HUBs. The data table shows the LMP, MLC, and MCC values for the Hourly Day-Ahead, 5-Minute Real-Time, and Last Hour Estimated of the selected generators and HUBs represented on the LMP Contour Map.

Real-time Total Load

This feature provides a linear graph and the data table of the Real-time Total Load vs. Day-Ahead Load Forecast.

Communication Guide

Under Midwest Market Operations, Midwest ISO staff will be limited in the amount of information that can be provided to customers. This guide provides information regarding the questions Midwest ISO staff can respond to.

Plug-In

Interactive LMP map requires free SVG 3.0 plug-in.

For questions, please contact Customer Relations at 866-296-6476 or fill out the on-line contact us form.

All Midwest ISO members are assigned customer relations contacts. To determine who your customer account representative is, please refer to the Midwest ISO point of contact document.

FAQs

General FAQ

Market and Asset Registration