EXHIBIT 15.1

Report of Independent Registered Public Accounting Firm

Board of Directors and Stockholders 

Applied Energetics, Inc. 

Tucson, Arizona

We have reviewed the condensed consolidated balance sheet of Applied Energetics, Inc. as of March 31, 2014, and the related condensed consolidated statements of operations for the three-months ended March 31, 2014 and 2013, and cash flows for the three-month periods ended March 31, 2014 and 2013 included in the accompanying Securities and Exchange Commission Form 10-Q for the period ended March 31, 2014. These interim financial statements are the responsibility of the Company’s management.

We conducted our reviews in accordance with the standards of the Public Company Accounting Oversight Board (United States). A review of interim financial information consists principally of applying analytical procedures and making inquiries of persons responsible for financial and accounting matters. It is substantially less in scope than an audit conducted in accordance with the standards of the Public Company Accounting Oversight Board, the objective of which is the expression of an opinion regarding the financial statements taken as a whole. Accordingly, we do not express such an opinion.

Based on our reviews, we are not aware of any material modifications that should be made to the condensed consolidated financial statements referred to above for them to be in conformity with accounting principles generally accepted in the United States of America.

We have previously audited, in accordance with the standards of the Public Company Accounting Oversight Board, the consolidated balance sheet of Applied Energetics, Inc. as of December 31, 2013, and the related consolidated statements of operations, stockholders’ equity, and cash flows for the year then ended (not presented herein); and in our report dated April 14, 2014, we expressed an unqualified opinion on those consolidated financial statements. Our report also contained an explanatory paragraph regarding the Company’s ability to continue as a going concern. In our opinion, the information set forth in the accompanying condensed consolidated balance sheet as of December 31, 2013 is fairly stated in all material respects in relation to the consolidated balance sheet from which it has been derived.

The accompanying condensed consolidated financial statements have also been prepared assuming that the Company will continue as a going concern. As discussed in Note 1 to the condensed consolidated financial statements, the Company has suffered recurring losses from operations and expects losses from operations to continue during 2014 due to the reduction of government contract activity that raise substantial doubt about its ability to continue as a going concern. Management’s plans in regard to these matters are also described in Note 1. The condensed consolidated financial statements do not include any adjustments that might result from the outcome of this uncertainty.

/s/ BDO USA, LLP

Phoenix, Arizona 

September 18, 2014

BDO USA, LLP, a Delaware limited liability partnership, is the U.S. member of BDO International Limited, a UK company limited by guarantee, and forms part of the international BDO network of independent member firms.

BDO is the brand name for the BDO network and for each of the BDO Member Firms.