UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

Washington, D.C. 20549

FORM 8-K

CURRENT REPORT

Pursuant to Section 13 or 15(d)

Of the Securities Exchange Act of 1934

Date of Report (Date of earliest event reported): September 4, 2018

CENTERPOINT ENERGY, INC.

(Exact name of registrant as specified in its charter)

Registrant’s telephone number, including area code: (713) 207-1111

Check the appropriate box below if the Form 8-K filing is intended to simultaneously satisfy the filing obligation of the registrant under any of the following provisions (see General Instruction A.2. below):

Indicate by check mark whether the registrant is an emerging growth company as defined in Rule 405 of the Securities Act of 1933 (§230.405) or Rule 12b-2 of the Securities Exchange Act of 1934 (§240.12b-2).

Emerging Growth Company  ☐

If an emerging growth company, indicate by check mark if the registrant has elected not to use the extended transition period for complying with any new or revised financial accounting standards provided pursuant to Section 13(a) of the Exchange Act.  ☐

The attached Exhibit 99.1 is a CenterPoint Energy, Inc. (“CenterPoint Energy”) slide presentation that will be used in meetings with investors and presented at the Barclays CEO Energy-Power Conference on September 4–5, 2018. The slide presentation is being posted on September 4, 2018 on CenterPoint Energy’s website and the presentation will be available live on September 5, 2018 at 7:45 a.m. ET, via webcast, through CenterPoint Energy’s website. An audio replay will be available on CenterPoint Energy’s website.

Exhibit 99.1 is furnished, not filed, pursuant to Item 7.01. Accordingly, none of the information will be deemed “filed” for purposes of Section 18 of the Securities Exchange Act of 1934, as amended, or otherwise subject to the liability of that section, as amended, and the information in Exhibit 99.1 will not be incorporated by reference into any registration statement filed by CenterPoint Energy under the Securities Act of 1933, as amended, unless specifically identified as being incorporated by reference.

Exhibit 99.1 is furnished, not filed, pursuant to Item 7.01. Accordingly, the information in Exhibit 99.1 will not be incorporated by reference into any registration statement filed by CenterPoint Energy under the Securities Act of 1933, as amended, unless specifically identified as being incorporated by reference.

SIGNATURE

Pursuant to the requirements of the Securities Exchange Act of 1934, the registrant has duly caused this report to be signed on its behalf by the undersigned hereunto duly authorized.