Exhibit 24(a)

POWER OF ATTORNEY

The undersigned director and/or officer of Xcel Energy Inc., a Minnesota corporation (the “Company”), does hereby make, constitute and appoint TERESA S. MADDEN and SCOTT M. WILENSKY, and each or any one of them, the undersigned’s true and lawful attorneys-in-fact and agents, with full power of substitution, for the undersigned and in the undersigned’s name, place and stead and in any and all capacities, to sign and affix the undersigned’s name as such director and/or officer of said Company to (i) a Form 10-K, Annual Report, or other applicable form, pursuant to the Securities Exchange Act of 1934, as amended (the “1934 Act”), including any and all exhibits, schedules, supplements, certifications and supporting documents thereto, including, but not limited to, the Form 11-K Annual Reports of the Company’s 401(k) Plans and similar plans pursuant to the 1934 Act, and all amendments, supplements and corrections thereto, to be filed by the Company with the Securities and Exchange Commission (the “SEC”), as required in connection with its registration under the 1934 Act, as amended; and (ii) one or more Registration Statements, on Form S-3, Form S-8 or other applicable forms, and all amendments, including post-effective amendments, thereto, to be filed by the Company with the SEC in connection with the registration under the Securities Act of 1933, as amended, of debt, equity or other securities of the Company, and to file the same, with all exhibits thereto and other supporting documents, with the SEC.

IN WITNESS WHEREOF, the undersigned has caused this Power of Attorney to be executed as of this 18th day of February, 2015.

/s/ BEN FOWKE

Ben Fowke

Chairman, President, Chief Executive Officer and Director

1

POWER OF ATTORNEY

The undersigned director and/or officer of Xcel Energy Inc., a Minnesota corporation (the “Company”), does hereby make, constitute and appoint BEN FOWKE, TERESA S. MADDEN and SCOTT M. WILENSKY, and each or any one of them, the undersigned’s true and lawful attorneys-in-fact and agents, with full power of substitution, for the undersigned and in the undersigned’s name, place and stead and in any and all capacities, to sign and affix the undersigned’s name as such director and/or officer of said Company to (i) a Form 10-K, Annual Report, or other applicable form, pursuant to the Securities Exchange Act of 1934, as amended (the “1934 Act”), including any and all exhibits, schedules, supplements, certifications and supporting documents thereto, including, but not limited to, the Form 11-K Annual Reports of the Company’s 401(k) Plans and similar plans pursuant to the 1934 Act, and all amendments, supplements and corrections thereto, to be filed by the Company with the Securities and Exchange Commission (the “SEC”), as required in connection with its registration under the 1934 Act, as amended; and (ii) one or more Registration Statements, on Form S-3, Form S-8 or other applicable forms, and all amendments, including post-effective amendments, thereto, to be filed by the Company with the SEC in connection with the registration under the Securities Act of 1933, as amended, of debt, equity or other securities of the Company, and to file the same, with all exhibits thereto and other supporting documents, with the SEC.

IN WITNESS WHEREOF, the undersigned has caused this Power of Attorney to be executed as of this 18th day of February, 2015.

/s/ Gail Koziara Boudreaux

Gail Koziara Boudreaux

Director

2

POWER OF ATTORNEY

The undersigned director and/or officer of Xcel Energy Inc., a Minnesota corporation (the “Company”), does hereby make, constitute and appoint BEN FOWKE, TERESA S. MADDEN and SCOTT M. WILENSKY, and each or any one of them, the undersigned’s true and lawful attorneys-in-fact and agents, with full power of substitution, for the undersigned and in the undersigned’s name, place and stead and in any and all capacities, to sign and affix the undersigned’s name as such director and/or officer of said Company to (i) a Form 10-K, Annual Report, or other applicable form, pursuant to the Securities Exchange Act of 1934, as amended (the “1934 Act”), including any and all exhibits, schedules, supplements, certifications and supporting documents thereto, including, but not limited to, the Form 11-K Annual Reports of the Company’s 401(k) Plans and similar plans pursuant to the 1934 Act, and all amendments, supplements and corrections thereto, to be filed by the Company with the Securities and Exchange Commission (the “SEC”), as required in connection with its registration under the 1934 Act, as amended; and (ii) one or more Registration Statements, on Form S-3, Form S-8 or other applicable forms, and all amendments, including post-effective amendments, thereto, to be filed by the Company with the SEC in connection with the registration under the Securities Act of 1933, as amended, of debt, equity or other securities of the Company, and to file the same, with all exhibits thereto and other supporting documents, with the SEC.

IN WITNESS WHEREOF, the undersigned has caused this Power of Attorney to be executed as of this 18th day of February, 2015.

/s/ Richard K. Davis

Richard K. Davis

Director

3

POWER OF ATTORNEY

The undersigned director and/or officer of Xcel Energy Inc., a Minnesota corporation (the “Company”), does hereby make, constitute and appoint BEN FOWKE, TERESA S. MADDEN and SCOTT M. WILENSKY, and each or any one of them, the undersigned’s true and lawful attorneys-in-fact and agents, with full power of substitution, for the undersigned and in the undersigned’s name, place and stead and in any and all capacities, to sign and affix the undersigned’s name as such director and/or officer of said Company to (i) a Form 10-K, Annual Report, or other applicable form, pursuant to the Securities Exchange Act of 1934, as amended (the “1934 Act”), including any and all exhibits, schedules, supplements, certifications and supporting documents thereto, including, but not limited to, the Form 11-K Annual Reports of the Company’s 401(k) Plans and similar plans pursuant to the 1934 Act, and all amendments, supplements and corrections thereto, to be filed by the Company with the Securities and Exchange Commission (the “SEC”), as required in connection with its registration under the 1934 Act, as amended; and (ii) one or more Registration Statements, on Form S-3, Form S-8 or other applicable forms, and all amendments, including post-effective amendments, thereto, to be filed by the Company with the SEC in connection with the registration under the Securities Act of 1933, as amended, of debt, equity or other securities of the Company, and to file the same, with all exhibits thereto and other supporting documents, with the SEC.

IN WITNESS WHEREOF, the undersigned has caused this Power of Attorney to be executed as of this 18th day of February, 2015.

/s/ Albert F. Moreno

Albert F. Moreno

Director

4

POWER OF ATTORNEY

The undersigned director and/or officer of Xcel Energy Inc., a Minnesota corporation (the “Company”), does hereby make, constitute and appoint BEN FOWKE, TERESA S. MADDEN and SCOTT M. WILENSKY, and each or any one of them, the undersigned’s true and lawful attorneys-in-fact and agents, with full power of substitution, for the undersigned and in the undersigned’s name, place and stead and in any and all capacities, to sign and affix the undersigned’s name as such director and/or officer of said Company to (i) a Form 10-K, Annual Report, or other applicable form, pursuant to the Securities Exchange Act of 1934, as amended (the “1934 Act”), including any and all exhibits, schedules, supplements, certifications and supporting documents thereto, including, but not limited to, the Form 11-K Annual Reports of the Company’s 401(k) Plans and similar plans pursuant to the 1934 Act, and all amendments, supplements and corrections thereto, to be filed by the Company with the Securities and Exchange Commission (the “SEC”), as required in connection with its registration under the 1934 Act, as amended; and (ii) one or more Registration Statements, on Form S-3, Form S-8 or other applicable forms, and all amendments, including post-effective amendments, thereto, to be filed by the Company with the SEC in connection with the registration under the Securities Act of 1933, as amended, of debt, equity or other securities of the Company, and to file the same, with all exhibits thereto and other supporting documents, with the SEC.

IN WITNESS WHEREOF, the undersigned has caused this Power of Attorney to be executed as of this 18th day of February, 2015.

/s/ Richard T. O’Brien

Richard T. O’Brien

Director

5

POWER OF ATTORNEY

The undersigned director and/or officer of Xcel Energy Inc., a Minnesota corporation (the “Company”), does hereby make, constitute and appoint BEN FOWKE, TERESA S. MADDEN and SCOTT M. WILENSKY, and each or any one of them, the undersigned’s true and lawful attorneys-in-fact and agents, with full power of substitution, for the undersigned and in the undersigned’s name, place and stead and in any and all capacities, to sign and affix the undersigned’s name as such director and/or officer of said Company to (i) a Form 10-K, Annual Report, or other applicable form, pursuant to the Securities Exchange Act of 1934, as amended (the “1934 Act”), including any and all exhibits, schedules, supplements, certifications and supporting documents thereto, including, but not limited to, the Form 11-K Annual Reports of the Company’s 401(k) Plans and similar plans pursuant to the 1934 Act, and all amendments, supplements and corrections thereto, to be filed by the Company with the Securities and Exchange Commission (the “SEC”), as required in connection with its registration under the 1934 Act, as amended; and (ii) one or more Registration Statements, on Form S-3, Form S-8 or other applicable forms, and all amendments, including post-effective amendments, thereto, to be filed by the Company with the SEC in connection with the registration under the Securities Act of 1933, as amended, of debt, equity or other securities of the Company, and to file the same, with all exhibits thereto and other supporting documents, with the SEC.

IN WITNESS WHEREOF, the undersigned has caused this Power of Attorney to be executed as of this 18th day of February, 2015.

/s/ Christopher J. Policinski

Christopher J. Policinski

Director

6

POWER OF ATTORNEY

The undersigned director and/or officer of Xcel Energy Inc., a Minnesota corporation (the “Company”), does hereby make, constitute and appoint BEN FOWKE, TERESA S. MADDEN and SCOTT M. WILENSKY, and each or any one of them, the undersigned’s true and lawful attorneys-in-fact and agents, with full power of substitution, for the undersigned and in the undersigned’s name, place and stead and in any and all capacities, to sign and affix the undersigned’s name as such director and/or officer of said Company to (i) a Form 10-K, Annual Report, or other applicable form, pursuant to the Securities Exchange Act of 1934, as amended (the “1934 Act”), including any and all exhibits, schedules, supplements, certifications and supporting documents thereto, including, but not limited to, the Form 11-K Annual Reports of the Company’s 401(k) Plans and similar plans pursuant to the 1934 Act, and all amendments, supplements and corrections thereto, to be filed by the Company with the Securities and Exchange Commission (the “SEC”), as required in connection with its registration under the 1934 Act, as amended; and (ii) one or more Registration Statements, on Form S-3, Form S-8 or other applicable forms, and all amendments, including post-effective amendments, thereto, to be filed by the Company with the SEC in connection with the registration under the Securities Act of 1933, as amended, of debt, equity or other securities of the Company, and to file the same, with all exhibits thereto and other supporting documents, with the SEC.

IN WITNESS WHEREOF, the undersigned has caused this Power of Attorney to be executed as of this 18th day of February, 2015.

/s/ A. Patricia Sampson

A. Patricia Sampson

Director

7

POWER OF ATTORNEY

The undersigned director and/or officer of Xcel Energy Inc., a Minnesota corporation (the “Company”), does hereby make, constitute and appoint BEN FOWKE, TERESA S. MADDEN and SCOTT M. WILENSKY, and each or any one of them, the undersigned’s true and lawful attorneys-in-fact and agents, with full power of substitution, for the undersigned and in the undersigned’s name, place and stead and in any and all capacities, to sign and affix the undersigned’s name as such director and/or officer of said Company to (i) a Form 10-K, Annual Report, or other applicable form, pursuant to the Securities Exchange Act of 1934, as amended (the “1934 Act”), including any and all exhibits, schedules, supplements, certifications and supporting documents thereto, including, but not limited to, the Form 11-K Annual Reports of the Company’s 401(k) Plans and similar plans pursuant to the 1934 Act, and all amendments, supplements and corrections thereto, to be filed by the Company with the Securities and Exchange Commission (the “SEC”), as required in connection with its registration under the 1934 Act, as amended; and (ii) one or more Registration Statements, on Form S-3, Form S-8 or other applicable forms, and all amendments, including post-effective amendments, thereto, to be filed by the Company with the SEC in connection with the registration under the Securities Act of 1933, as amended, of debt, equity or other securities of the Company, and to file the same, with all exhibits thereto and other supporting documents, with the SEC.

IN WITNESS WHEREOF, the undersigned has caused this Power of Attorney to be executed as of this 18th day of February, 2015.

/s/ James J. Sheppard

James J. Sheppard

Director

8

POWER OF ATTORNEY

The undersigned director and/or officer of Xcel Energy Inc., a Minnesota corporation (the “Company”), does hereby make, constitute and appoint BEN FOWKE, TERESA S. MADDEN and SCOTT M. WILENSKY, and each or any one of them, the undersigned’s true and lawful attorneys-in-fact and agents, with full power of substitution, for the undersigned and in the undersigned’s name, place and stead and in any and all capacities, to sign and affix the undersigned’s name as such director and/or officer of said Company to (i) a Form 10-K, Annual Report, or other applicable form, pursuant to the Securities Exchange Act of 1934, as amended (the “1934 Act”), including any and all exhibits, schedules, supplements, certifications and supporting documents thereto, including, but not limited to, the Form 11-K Annual Reports of the Company’s 401(k) Plans and similar plans pursuant to the 1934 Act, and all amendments, supplements and corrections thereto, to be filed by the Company with the Securities and Exchange Commission (the “SEC”), as required in connection with its registration under the 1934 Act, as amended; and (ii) one or more Registration Statements, on Form S-3, Form S-8 or other applicable forms, and all amendments, including post-effective amendments, thereto, to be filed by the Company with the SEC in connection with the registration under the Securities Act of 1933, as amended, of debt, equity or other securities of the Company, and to file the same, with all exhibits thereto and other supporting documents, with the SEC.

IN WITNESS WHEREOF, the undersigned has caused this Power of Attorney to be executed as of this 18th day of February, 2015.

/s/ David A. Westerlund

David A. Westerlund

Director

9

POWER OF ATTORNEY

The undersigned director and/or officer of Xcel Energy Inc., a Minnesota corporation (the “Company”), does hereby make, constitute and appoint BEN FOWKE, TERESA S. MADDEN and SCOTT M. WILENSKY, and each or any one of them, the undersigned’s true and lawful attorneys-in-fact and agents, with full power of substitution, for the undersigned and in the undersigned’s name, place and stead and in any and all capacities, to sign and affix the undersigned’s name as such director and/or officer of said Company to (i) a Form 10-K, Annual Report, or other applicable form, pursuant to the Securities Exchange Act of 1934, as amended (the “1934 Act”), including any and all exhibits, schedules, supplements, certifications and supporting documents thereto, including, but not limited to, the Form 11-K Annual Reports of the Company’s 401(k) Plans and similar plans pursuant to the 1934 Act, and all amendments, supplements and corrections thereto, to be filed by the Company with the Securities and Exchange Commission (the “SEC”), as required in connection with its registration under the 1934 Act, as amended; and (ii) one or more Registration Statements, on Form S-3, Form S-8 or other applicable forms, and all amendments, including post-effective amendments, thereto, to be filed by the Company with the SEC in connection with the registration under the Securities Act of 1933, as amended, of debt, equity or other securities of the Company, and to file the same, with all exhibits thereto and other supporting documents, with the SEC.

IN WITNESS WHEREOF, the undersigned has caused this Power of Attorney to be executed as of this 18th day of February, 2015.

/s/ Kim Williams

Kim Williams

Director

10

POWER OF ATTORNEY

The undersigned director and/or officer of Xcel Energy Inc., a Minnesota corporation (the “Company”), does hereby make, constitute and appoint BEN FOWKE, TERESA S. MADDEN and SCOTT M. WILENSKY, and each or any one of them, the undersigned’s true and lawful attorneys-in-fact and agents, with full power of substitution, for the undersigned and in the undersigned’s name, place and stead and in any and all capacities, to sign and affix the undersigned’s name as such director and/or officer of said Company to (i) a Form 10-K, Annual Report, or other applicable form, pursuant to the Securities Exchange Act of 1934, as amended (the “1934 Act”), including any and all exhibits, schedules, supplements, certifications and supporting documents thereto, including, but not limited to, the Form 11-K Annual Reports of the Company’s 401(k) Plans and similar plans pursuant to the 1934 Act, and all amendments, supplements and corrections thereto, to be filed by the Company with the Securities and Exchange Commission (the “SEC”), as required in connection with its registration under the 1934 Act, as amended; and (ii) one or more Registration Statements, on Form S-3, Form S-8 or other applicable forms, and all amendments, including post-effective amendments, thereto, to be filed by the Company with the SEC in connection with the registration under the Securities Act of 1933, as amended, of debt, equity or other securities of the Company, and to file the same, with all exhibits thereto and other supporting documents, with the SEC.

IN WITNESS WHEREOF, the undersigned has caused this Power of Attorney to be executed as of this 18th day of February, 2015.

/s/ Timothy V. Wolf

Timothy V. Wolf

Director

11