June 3 Eight power companies in the U.S. South
on Friday joined the reliability region of Midwest electric
grid, the Midcontinent Independent System Operator (MISO) said
in a release Monday.
The eight utilities include Cleco Corp of Louisiana,
South Mississippi Electric Power Association, Louisiana Energy
and Power Authority, Louisiana Generating LLC and four municipal
The additions followed the integration of Arkansas Electric
Cooperative and Entergy Corp's utilities in Arkansas,
Louisiana, Mississippi and Texas into the MISO's reliability
region in December.
MISO said the Entergy utilities, Cleco and South Mississippi
Electric are working toward full integration into MISO's market
operations by December 2013.
MISO oversees two regions - a reliability region and a
The reliability region has more than 205,000 MW of
generating capacity covering parts of 15 states from the Gulf of
Mexico to the Canadian border and the Canadian province of
The market region has more than 131,500 MW of capacity
serving 42 million people in parts of 11 U.S. Midwest states
from Montana to Michigan.