STEM

The Short-Term Energy Market (STEM) provides Market Participants with an ability to buy and sell electricity in a day ahead forward market to manage their contracted position. The STEM processes include provision of contractual position, bids and offers for the day ahead market, and calculation of a Net Contract Position for settlement. 

The STEM remains structurally similar to the previous design, however minor system changes were required to accommodate changes to the STEM Submission timetable and STEM Submission data requirements introduced through the new WEM Rule.