| 1.   | I              have reviewed this quarterly report on Form 10-QSB of Hydrogen Engine              Center, Inc.; |
|----------------|-----------------------------------------------------------------------------------------------------------------|

| 2.   | Based              on my knowledge, this report does not contain any untrue statement              of a              material fact or omit to state a material fact necessary to make the              statements made, in light of the circumstances under which such statements              were made, not misleading with respect to the period covered by this              report; |
|----------------|------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|

| 3.   | Based              on my knowledge, the financial statements, and other financial information              included in this report, fairly present in all material respects the              financial condition, results of operations and cash flows of the              registrant as of, and for, the periods presented in this report; |
|----------------|---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|

| 4.   | The              registrant's other certifying officer and I have disclosed, based on              our              most recent evaluation of internal control over financial reporting,              to              the registrant's auditors and the audit committee of the registrant's              board of directors (or persons performing the equivalent functions): |
|----------------|-------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|

| a.   | All              significant deficiencies and material weaknesses in the design or              operation of internal control over financial reporting which are              reasonably likely to adversely affect the registrant's ability to record,              process, summarize and report financial information; and |
|----------------|-------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|

| b.   | Any              fraud, whether or not material, that involves management or other              employees who have a significant role in the registrant's internal              control              over financial reporting. |
|----------------|--------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|

|                                      |                                 |                                   |
|-------------------------------------------|--------------------------------------|----------------------------------------|
|                                      |                                 |                                   |
| August              14,              2007 |                                      | /s/              Theodore G. Hollinger |
|                                      | Theodore              G. Hollinger   |
|                                      | Chief              Executive Officer |

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