Exhibit 24 POWER OF ATTORNEY ----------------- The undersigned, a Director and/or Officer of Iowa-Illinois Gas and Electric Company, an Illinois corporation, does hereby constitute and appoint S. J. Bright, L. E. Cooper, and K. M. Giger his or her true and lawful attorneys and agents, each with full power and authority (acting alone and without the others) to execute in the name and on behalf of the undersigned as such Director and/or Officer, a Registration Statement under the Securities Act of 1933, as amended, with respect to 2,000,000 of the Company's Common Shares, $1.00 par value, for issuance and sale under the Company's Dividend Reinvestment and Share Purchase Plan and to execute any and all amendments to such Registration Statement, whether filed prior or subsequent to the time such Registration Statement becomes effective. The undersigned hereby grants unto such attorneys and agents, and each of them, full power of substitution and revocation in the premises and hereby ratifies and confirms all that such attorneys and agents may do or cause to be done by virtue of these presents. Dated this 13th day of April, 1994. /s/ John W. Colloton --------------------------- John W. Colloton POWER OF ATTORNEY ----------------- The undersigned, a Director and/or Officer of Iowa-Illinois Gas and Electric Company, an Illinois corporation, does hereby constitute and appoint S. J. Bright, L. E. Cooper, and K. M. Giger his or her true and lawful attorneys and agents, each with full power and authority (acting alone and without the others) to execute in the name and on behalf of the undersigned as such Director and/or Officer, a Registration Statement under the Securities Act of 1933, as amended, with respect to 2,000,000 of the Company's Common Shares, $1.00 par value, for issuance and sale under the Company's Dividend Reinvestment and Share Purchase Plan and to execute any and all amendments to such Registration Statement, whether filed prior or subsequent to the time such Registration Statement becomes effective. The undersigned hereby grants unto such attorneys and agents, and each of them, full power of substitution and revocation in the premises and hereby ratifies and confirms all that such attorneys and agents may do or cause to be done by virtue of these presents. Dated this 21st day of April, 1994. /s/ Frank S. Cottrell ----------------------------- Frank S. Cottrell POWER OF ATTORNEY ----------------- The undersigned, a Director and/or Officer of Iowa-Illinois Gas and Electric Company, an Illinois corporation, does hereby constitute and appoint S. J. Bright, L. E. Cooper, and K. M. Giger his or her true and lawful attorneys and agents, each with full power and authority (acting alone and without the others) to execute in the name and on behalf of the undersigned as such Director and/or Officer, a Registration Statement under the Securities Act of 1933, as amended, with respect to 2,000,000 of the Company's Common Shares, $1.00 par value, for issuance and sale under the Company's Dividend Reinvestment and Share Purchase Plan and to execute any and all amendments to such Registration Statement, whether filed prior or subsequent to the time such Registration Statement becomes effective. The undersigned hereby grants unto such attorneys and agents, and each of them, full power of substitution and revocation in the premises and hereby ratifies and confirms all that such attorneys and agents may do or cause to be done by virtue of these presents. Dated this 13th day of April, 1994. /s/ William C. Fletcher ----------------------------- William C. Fletcher POWER OF ATTORNEY ----------------- The undersigned, a Director and/or Officer of Iowa-Illinois Gas and Electric Company, an Illinois corporation, does hereby constitute and appoint S. J. Bright, L. E. Cooper, and K. M. Giger his or her true and lawful attorneys and agents, each with full power and authority (acting alone and without the others) to execute in the name and on behalf of the undersigned as such Director and/or Officer, a Registration Statement under the Securities Act of 1933, as amended, with respect to 2,000,000 of the Company's Common Shares, $1.00 par value, for issuance and sale under the Company's Dividend Reinvestment and Share Purchase Plan and to execute any and all amendments to such Registration Statement, whether filed prior or subsequent to the time such Registration Statement becomes effective. The undersigned hereby grants unto such attorneys and agents, and each of them, full power of substitution and revocation in the premises and hereby ratifies and confirms all that such attorneys and agents may do or cause to be done by virtue of these presents. Dated this 16th day of April, 1994. /s/ Mel Foster, Jr. ---------------------------- Mel Foster, Jr. POWER OF ATTORNEY ----------------- The undersigned, a Director and/or Officer of Iowa-Illinois Gas and Electric Company, an Illinois corporation, does hereby constitute and appoint S. J. Bright, L. E. Cooper, and K. M. Giger his or her true and lawful attorneys and agents, each with full power and authority (acting alone and without the others) to execute in the name and on behalf of the undersigned as such Director and/or Officer, a Registration Statement under the Securities Act of 1933, as amended, with respect to 2,000,000 of the Company's Common Shares, $1.00 par value, for issuance and sale under the Company's Dividend Reinvestment and Share Purchase Plan and to execute any and all amendments to such Registration Statement, whether filed prior or subsequent to the time such Registration Statement becomes effective. The undersigned hereby grants unto such attorneys and agents, and each of them, full power of substitution and revocation in the premises and hereby ratifies and confirms all that such attorneys and agents may do or cause to be done by virtue of these presents. Dated this 14th day of April, 1994. /s/ Nancy L. Seifert ---------------------------- Nancy L. Seifert POWER OF ATTORNEY ----------------- The undersigned, a Director and/or Officer of Iowa-Illinois Gas and Electric Company, an Illinois corporation, does hereby constitute and appoint S. J. Bright, L. E. Cooper, and K. M. Giger his or her true and lawful attorneys and agents, each with full power and authority (acting alone and without the others) to execute in the name and on behalf of the undersigned as such Director and/or Officer, a Registration Statement under the Securities Act of 1933, as amended, with respect to 2,000,000 of the Company's Common Shares, $1.00 par value, for issuance and sale under the Company's Dividend Reinvestment and Share Purchase Plan and to execute any and all amendments to such Registration Statement, whether filed prior or subsequent to the time such Registration Statement becomes effective. The undersigned hereby grants unto such attorneys and agents, and each of them, full power of substitution and revocation in the premises and hereby ratifies and confirms all that such attorneys and agents may do or cause to be done by virtue of these presents. Dated this 12th day of April, 1994. /s/ S. E. Shelton ----------------------------- S. E. Shelton POWER OF ATTORNEY ----------------- The undersigned, a Director and/or Officer of Iowa-Illinois Gas and Electric Company, an Illinois corporation, does hereby constitute and appoint S. J. Bright, L. E. Cooper, and K. M. Giger his or her true and lawful attorneys and agents, each with full power and authority (acting alone and without the others) to execute in the name and on behalf of the undersigned as such Director and/or Officer, a Registration Statement under the Securities Act of 1933, as amended, with respect to 2,000,000 of the Company's Common Shares, $1.00 par value, for issuance and sale under the Company's Dividend Reinvestment and Share Purchase Plan and to execute any and all amendments to such Registration Statement, whether filed prior or subsequent to the time such Registration Statement becomes effective. The undersigned hereby grants unto such attorneys and agents, and each of them, full power of substitution and revocation in the premises and hereby ratifies and confirms all that such attorneys and agents may do or cause to be done by virtue of these presents. Dated this 21st day of April, 1994. /s/ W. Scott Tinsman ----------------------------- W. Scott Tinsman POWER OF ATTORNEY ----------------- The undersigned, a Director and/or Officer of Iowa-Illinois Gas and Electric Company, an Illinois corporation, does hereby constitute and appoint S. J. Bright, L. E. Cooper, and K. M. Giger his or her true and lawful attorneys and agents, each with full power and authority (acting alone and without the others) to execute in the name and on behalf of the undersigned as such Director and/or Officer, a Registration Statement under the Securities Act of 1933, as amended, with respect to 2,000,000 of the Company's Common Shares, $1.00 par value, for issuance and sale under the Company's Dividend Reinvestment and Share Purchase Plan and to execute any and all amendments to such Registration Statement, whether filed prior or subsequent to the time such Registration Statement becomes effective. The undersigned hereby grants unto such attorneys and agents, and each of them, full power of substitution and revocation in the premises and hereby ratifies and confirms all that such attorneys and agents may do or cause to be done by virtue of these presents. Dated this 14th day of April, 1994. /s/ L. L. Woodruff --------------------------- L. L. Woodruff