Green Plains Renewable Energy, Inc. Produces First Million Gallons of Ethanol at Superior Plant

OMAHA, NE, Aug 05 (MARKET WIRE) --
Green Plains Renewable Energy, Inc. (NASDAQ: GPRE) (AMEX: GPRE) recently
completed production of the first million gallons of ethanol at its new
Superior, IA, facility. The plant's anticipated operational capacity is
55 million gallons of ethanol per year. Additionally, the plant is
expected to produce 175,000 tons of distiller grains per year. Superior
operations were initiated on July 7, 2008.

"Completion of the first million gallons of output is an important
milestone for a new ethanol plant," said Wayne Hoovestol, Chief Executive
Officer. "During the first several weeks of operation, the equipment and
process systems must be carefully tested, calibrated and commissioned. The
Superior plant crossed the one million gallon mark on July 29. We expect
to reach operational capacity in the near future. The first rail cars of
ethanol were loaded on August 1 and the first train loads are scheduled to
be shipped out by the end of the week."

The Superior site was selected because of the abundance of corn in the
region. Green Plains owns and operates grain elevators at seven locations
in the immediate vicinity. The Company's vertically-integrated approach
provides strategic advantages in managing risks, reducing costs and
increasing efficiencies.

"The Superior ethanol plant and our nearby agribusiness operations
complement each other," continued Hoovestol. "The resulting model is
integrated and diversified, allowing the Company to avoid certain
commodity origination and marketing costs."

About Green Plains Renewable Energy, Inc.

Green Plains, based in Omaha, NE, has the strategy of becoming a
vertically-integrated, low-cost ethanol producer. Green Plains' Ethanol
segment operates two plants in Iowa with a combined operating capacity of
110 million gallons of ethanol per year. Green Plains' Agribusiness
segment operates grain storage facilities with a capacity of
approximately 19 million bushels. Additionally, the Agribusiness segment
has complementary agronomy, feed and petroleum businesses.

This news release contains forward-looking statements within the meaning
of the Securities Act of 1933 and the Securities Exchange Act of 1934, as
amended. Such statements are identified by the use of words such as
"anticipate," "estimate," "expect," "project," "intend," "plan,"
"believe," and other words and terms of similar meaning in connection
with any discussion of future operating or financial performance. Such
statements are based on management's current expectations and are subject
to various factors, risks and uncertainties that may cause actual
results, outcome of events, timing and performance to differ materially
from those expressed or implied by such forward-looking statements. Green
Plains may experience significant fluctuations in future operating
results due to a number of economic conditions, including, but not
limited to, competition in the ethanol industry, risks associated with
plant construction and technology development, and other risk factors
detailed in Green Plains' SEC filings. Additional information with
respect to these and other factors, which could materially affect Green
Plains and its operations, are included on certain forms Green Plains has
filed with the SEC. Green Plains assumes no obligation to update any
forward-looking statements, whether as a result of new information,
future events or otherwise.

Company Contacts:
Scott B. Poor
Corporate Counsel / Director of Investor Relations
Green Plains Renewable Energy, Inc.
(402) 884-8700
www.gpreinc.com

Investor Contact:
John Baldissera
BPC Financial Marketing
(800) 368-1217

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