The North Dakota Transmission Authority Annual Report (July 1, 2010 - June 30, 2011) highlights BSSE line as being 'of particular interest':
Since January 2011 the MVP Task Force has conducted numerous studies to further evaluate the impact of the candidate lines on the MISO system. Tentatively the projects represent $4.5 billion (2010 USD) of capital investment. Of particular interest to North Dakota are the Ellendale to Big Stone line (6), the Big Stone to Brookings line (1) and the Brookings to Twin Cities (2) line. If selected, the lines will add capacity to move new energy resources from North Dakota.
The full report can be read here:
ND Transmission Authority 2010-2011 Annual Report