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EXHIBIT 12.2

SARBANES-OXLEY CFO CERTIFICATION

I, Brian Richardson, Chief Financial Officer of Dynamotive
Energy Systems Corporation, certify that:

1.        I have
reviewed this Annual Report on Form 20-F of Dynamotive Energy Systems
Corporation;

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 officers and I are responsible for establishing and maintaining
disclosure controls and procedures (as defined in Exchange Act Rules 13a-15(e)
and 15d-15(e)) and internal control over financial reporting (as defined in
Exchange Act Rules 13a-15(f) and 15d-15(f)) for the Registrant and have:

(a)       Designed such
disclosure controls and procedures, or caused such disclosure controls and
procedures to be designed under our supervision, to ensure that material
information relating to the Registrant, including its consolidated subsidiaries,
is made known to us by others within those entities, particularly during the
period in which this report is being prepared;

(b)      
Designed such internal control over financial reporting, or caused such internal
control over financial reporting to be designed under our supervision, to
provide reasonable assurance regarding the reliability of financial reporting
and the preparation of financial statements for external purposes in accordance
with generally accepted accounting principles;

(c)      
Evaluated the effectiveness of the Registrants disclosure controls and
procedures and presented in this report our conclusions about the effectiveness
of the disclosure controls and procedures, as of the end of the period covered
by this report based on such evaluation; and

(d)       Disclosed in this
report any change in the Registrant's internal control over financial reporting
that occurred during the period covered by the annual report that has materially
affected, or is reasonably likely to materially affect, the Registrant's
internal control over financial reporting; and

5.       The Registrants
other certifying officer(s) and I have disclosed, based on our most recent
evaluation of the internal control over financial reporting, to the Registrants
auditors and the audit committee of 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.

|Date:  | June 27, 2007           | 
|------ | ----------------------- | 
|       | /s/ Brian Richardson    | 
|By:    | Brian Richardson        | 
|Title: | Chief Financial Officer | 

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