Agenda - Council Work Session - 07/13/2010

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VER ENERGY A Touchstone Ene~gy'° Cooperative ~.~ Proposed Enterprise Park Transmission Project June 23, 2010 (Ver 1.1) Great River Energy is in the early stages of developing a transmission project to address reliability concerns regarding the electric system in the northwest metro region. We are currently seeking input from leaders of the cities into which the proposed line might cross: Anoka, Andover, Coon Rapids and Ramsey. Need Economic growth and development in the northwest metro region (Anoka, Andover and Ramsey) have strained the existing 69 kilovolt (kV) transmission system to its design limits. To ensure the continued reliability of the electric services in the region and equally as important, to enable future economic growth and development, the transmission system needs to be enhanced. Existing Transmission System The communities of Anoka, Andover, and Ramsey receive electrical service from a 69 kV transmission line (the "EP" line), which runs from the Elk River Substation to the Parkwood Substation. Despite recent upgrades, forecasts for future load (the amount of electricity expected to be used) suggest that the line could be overloaded as early as the summer of 2011. Without enhancing the system, the reliability of electric service to existing customers in the region is at risk. Furthermore, the ability to add new loads to the system is limited. 77ie northwest metro region receires electrical sei~•ice fi•onz the 69 kV "EP" transmission line. Proposed Project Great River Energy is proposing atwo-phased project to offer short- and long-term solutions that will strengthen the region's transmission system. Phase I would consist of connecting the existing Enterprise Park distribution substation (see map on next page) to the 115 kV transmission system at the Crooked Lake Substation. This