FERC Confirms MISO’s Interpretation of JOA With SPP

CARMEL, Ind., July 5, 2011 /PRNewswire/ — The Federal Energy Regulatory
Commission (FERC) issued a declaratory judgment last Friday confirming that the
SPP/MISO Joint Operating Agreement (JOA) allows the parties to share available
transmission capacity. MISO’s April petition sought clarification of conflicting
interpretations between MISO and SPP regarding Section 5.2 of the agreement.
FERC agreed with MISO’s interpretation that Section 5.2 provides for sharing
transmission capacity on a common path.

“MISO appreciates FERC’s timely action in resolving this matter. FERC’s
confirmation of our understanding of the JOA is consistent with past practices
and daily operations on our seams. This also eliminates confusion concerning
connectivity issues related to Entergy’s planned integration into MISO’s market
operations,” said John R. Bear, President and CEO of MISO. Enhanced transfer
capability between Entergy and MISO will allow for more efficient use of the
transmission system, further increasing the benefits to customers from Entergy’s
integration while maintaining high levels of reliability that MISO and SPP
customers expect.

FERC’s order also recognizes the practical need for MISO and SPP to continue to
work together on possible revisions to the JOA to improve the economic
efficiency of the operations of the combined region. MISO agrees that continued
improvement of the JOA is important and necessary because market efficiencies
ultimately lead to increased customer benefits.

MISO also remains committed to working with state regulatory commissions and
other interested stakeholders to address any issues that may arise during
Entergy’s planned integration into MISO market operations.

For more information, see Rate Schedule 06 – MISO’s joint operating agreement
with SPP, and the FERC’s order confirming MISO’s interpretation of Section 5.2
of the MISO-SPP JOA.

AboutMISO

MISO ensures reliable operation of, and equal access to high-voltage power lines
in 12 U.S. states and the Canadian province of Manitoba. MISO manages one of the
world’s largest energy markets, clearing more than $27 billion in energy
transactions in 2010. MISO was approved as the nation’s first regional
transmission organization in 2001. The non-profit 501(C)(4) organization is
governed by an independent Board of Directors and is headquartered in Carmel,
Ind., with operations centers in Carmel and St. Paul, Minn. Membership in the
organization is voluntary.

SOURCE MISO