Filed Under Rule 424(b)(3)
                                           Registration Statement No. 333-121321
                                    Supplement to Prospectus Dated March 9, 2005
                                             Supplement Dated September 29, 2005


                       GREEN PLAINS RENEWABLE ENERGY, INC.

The following information is incorporated into the Prospectus, dated March 9,
2005 (the "Prospectus"), and supersedes any inconsistent information contained
in the Prospectus.

We have retained Smith-Hayes Financial Services, an NASD member broker-dealer,
to participate in this offering as a non-exclusive placement agent. Smith-Hayes
will receive the commission described in the Prospectus of seven percent (7%) on
sales made by Smith-Hayes in the offering. At this time, we have not retained
any other NASD member broker-dealers in connection with this offering, although
we may do so in the future.

The Security National Bank, our escrow agent, has previously invested all
escrowed funds in the Goldman Sachs Financial Square Government Fund as provided
by our Escrow Agreement. We have amended our escrow agreement, effective
immediately, so that our escrow agent will invest all escrowed funds directly in
short-term U.S. Treasury Bills and, to the extent that the funds are not able to
be invested in short-term U.S. Treasury Bills because of the denominations in
which the U.S. Treasury Bills are available, in a bank account, including a bank
savings account or bank money market account.