On September 2, 2009, the Federal Energy Regulatory Commission issued a letter of deficiency to the Midwest Independent Transmission System Operator in MISO’s RECB Phase I generator interconnect cost allocation tariff amendment proceedings (Docket No. ER09-1431). See my previous blog entry on AWEA’s protest to the MISO filing for additional background.
The letter instructs MISO to provide certain supplemental information within fifteen days. Specifically, MISO is instructed to provide a list of all of the interconnection projects that will be affected by the tariff amendment, an explanation of MISO’s position on the relevant date for determining which cost allocation method methodology will apply, and additional support for certain statements made in its filing regarding attrition rates and elimination of certain requirements of interconnecting generators resulting from the filing. Finally, MISO is instructed to provide a timeline and description of the anticipated RECB Phase II methodology stakeholder process that will be followed to permit MISO to meet its commitment to file a succeeding tariff proposal by July 15, 2010.