POWER OF ATTORNEY
WHEREAS, directors, certain officers, and beneficial owners of more than 10% of any equity
security of AMEREN CORPORATION, a Missouri corporation (herein referred to as the "Company"),
as well as certain directors and officers of Company subsidiaries, are required to file with the
Securities and Exchange Commission and the New York Stock Exchange, under Section 16 of the
Securities Exchange Act of 1934, as now and hereafter amended, statements regarding ownership and
change in ownership of equity securities of the Company (the "Reporting Forms"); and
WHEREAS, the undersigned holds a directorship, office or offices in the Company and/or
Company subsidiaries and is required to file such Reporting Forms.
NOW, THEREFORE, the undersigned hereby constitutes and appoints Gregory L. Nelson
and/or Jonathan T. Shade and/or Craig W. Stensland and/or any individual who hereafter holds the
offices of Secretary or Assistant Secretary of the Company the true and lawful attorneys-in-fact of the
undersigned, for and in the name, place and stead of the undersigned, to affix the name of the
undersigned (including, without limitation, any electronic signature) to the Reporting Forms and any
amendments thereto, together with any other documents, certificates or instruments necessary to
facilitate the filing thereof, and, for the performance of the same acts, each with power to appoint in
their place and stead and as their substitute, one or more attorneys-in-fact for the undersigned, with full
power of revocation; hereby ratifying and confirming all that said attorneys-in-fact may do by virtue
hereof. The undersigned acknowledges that the foregoing attorney-in-fact, in serving in such capacity
at the request of the undersigned, are not assuming, nor is the Company assuming, any of the
undersigned's responsibilities to comply with Section 16 of the Securities Exchange Act of 1934. The
undersigned further acknowledges that in whatever capacities he may hold in the Company and/or its
subsidiaries in the future, this Power of Attorney shall remain in full force and effect until such time it
would be revoked by the undersigned.
IN WITNESS WHEREOF, the undersigned has hereunto set his hand this 2nd day of
May , 2017.
/s/ Shawn E. Schukar
Shawn E. Schukar
STATE OF MISSOURI )
) SS.
CITY OF ST. LOUIS )
On this 2nd day of May , 2017, before me, the undersigned Notary Public in
and for said State, personally appeared Shawn E. Schukar, known to me to be the person described in
and who executed the foregoing power of attorney and acknowledged to me that he executed the same
as his free act and deed for the purposes therein stated.
IN TESTIMONY WHEREOF, I have hereunto set my hand and affixed my official seal.
/s/ Carla J. Flinn
Carla J. Flinn - Notary Public
Notary Seal, State of
Missouri - St. Louis City
Commission #14399906
My Commission Expires 04/20/2018
