Big Digital Energy, Inc.

FOR THE 2026 ANNUAL MEETING OF STOCKHOLDERS

To Be Held On

November 13, 2026, 10:00 am Eastern Time

This Proxy Statement contains information about the 2026 Annual Meeting of Stockholders (the “Annual Meeting”) of Big Digital Energy, Inc. (referred to in this Proxy Statement as “Big Digital”, “the Company”, “we”, “our” or “us”).

The Annual Meeting will be held virtually on:

November 13, 2026, 10:00 am Eastern Time

You can attend the Annual Meeting via the virtual meeting portal at:

Meeting link: meetnow.global/M5XML7Y

Holding the Annual Meeting online enables our stockholders to participate from any location with internet connectivity, enhances accessibility for all stockholders, and reduces the carbon footprint of our activities. The Annual Meeting has been designed to provide the same rights to participate as stockholders would have at an in-person meeting. Information on how to participate in this year’s virtual Meeting can be found below.

This Proxy Statement is furnished in connection with the solicitation of proxies by our Board of Directors (the “Board”) for use at the Annual Meeting and at any adjournment of the Annual Meeting. All proxies will be voted in accordance with the instructions they contain. If you do not specify your voting instructions on your proxy, it will be voted in accordance with the recommendations of our Board.

The Notice of the 2026 Annual Meeting of Stockholders, Proxy Statement, proxy card and our Annual Report on Form 10-K for the year ended December 31, 2025 filed with the Securities and Exchange Commission (the “SEC”) on March 31, 2026 (the “2025 Form 10-K”), are first being made available to stockholders on or about October 23, 2026 and are also available online atwww.bigdigital.energy, the SEC’s website, www.sec.gov, andhttps://www.edocumentview.com/BGDE. For ease of voting, stockholders are encouraged to vote using the Internet. We encourage you to access and review all the information in the proxy materials before voting.