Comment Matrix – AESO Response to Stakeholder Comments

Comment Matrix – AESO Response to Stakeholder Comments Market Suspension – Issue Identification Paper December 18, 2009 Period of consultation: July 30, 2009 – August 28, 2009 1.0, 2.0 & 3.0 Introduction, Purpose, Rule History Stakeholder Stakeholder Comment AESO Response ATCO Rule 6.9 states “under extraordinary circumstances, It is the AESO’s view that market suspension should only the system controller may suspend the normal occur under extraordinary circumstances and is a last operation of the energy market” (emphasis added). resort. Market suspension should only be contemplated for unexpected elements that cannot be effectively The AESO agrees that appropriate rules that facilitate a controlled for, such as acts of force majeure. competitive market are of primary importance but views the market suspension rule as a necessary tool to be The AESO should not suspend the market due to used in rare circumstance when the market fails to known transmission congestion on the system or function or cannot be operated in a fair efficient openly supply surplus or any other issue that is within the competitive manner. AESO’s control. If the AESO suspends the market for these reasons it has not effectively fulfilled its mandate in operating the AIES and facilitating Alberta’s competitive wholesale electricity market. ATCO Power agrees with the AESO’s assessment that the current rule is outdated and could benefit from some revisions. We ...