Survey Says MISO’s Market Participants Continue to be Satisfied with Performance

CARMEL, Ind., Aug. 25, 2011 /PRNewswire/ — In a study commissioned by the
Entergy Regional State Committee (ERSC), MISO market participants said they
found “significant improvement” in nearly every category by joining MISO as a
regional transmission organization (RTO), compared with non-RTO membership.
Across the board, participants rated the MISO stakeholder process effective.

“What these results show is that we listen and respond to issues that are
important to our members and those who regulate them,” said Wayne Schug,
Executive Director of Stakeholder Engagement and Strategic Planning. “We’re
pleased with the results but, more importantly, we believe the stakeholder
satisfaction provides a strong signal to Entergy’s regulators that their input
will be valued as Entergy integrates into the MISO region.”

ESPY Energy Solutions conducted the survey and presented the results to the ERSC
in a meeting today in New Orleans. The ERSC is comprised of state regulators
from all of Entergy’s service territory in Arkansas, Louisiana, Mississippi,
Texas and the City of New Orleans.

In the MISO service territory, responses were received from all sectors,
including state regulators, investor-owned utilities, municipal and cooperative
utility providers, power marketers and brokers, independent power producers and
others. The survey was directed at market participants of both MISO and
Southwest Power Pool (SPP).

The survey showed that stakeholders believe MISO makes decisions in a way that
balances the needs of all of its market participants. Since 2005, MISO has been
surveying its customers and publishing the results on the company’s website. The
conclusions reached by the ESPY survey are also consistent with MISO’s strategic
goal of improving stakeholder outreach.

“Entergy has made a business decision to join MISO based on our ability to
provide important benefits to their customers – lower costs, improved
reliability and additional independent oversight of their transmission and
generation assets,” said John Bear, MISO’s President and CEO. “This survey
confirms that the work Entergy and MISO have undertaken to fully integrate into
MISO will bring MISO’s Cornerstones – operational excellence, effective
communication and customer service – into Entergy’s service territory.”

Find more information on the survey under ERSC August 24 meeting materials.

About MISO

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