Exhibit 24.1


POWER OF ATTORNEY

KNOW ALL BY THESE PRESENTS, that the person whose signature appears
below hereby revokes all powers of attorney relating to the
following matters and constitutes and appoints Charles Coppa,
Carl Barnes and Daniele Ouellette Levy, and any one of them acting
singly, the true and lawful attorneys-in-fact and agents, with full
power of substitution and resubstitution, for the undersigned and
in the undersigned's name, place and stead, in any and all capacities
(until revoked inwriting) to sign any and all instruments,
certificates and documents required to be executed on behalf of the
undersigned in the undersigned's capacity as an officer and/or director
of American Power Group Corp., pursuant to Sections 13 and 16 of the
Securities Exchange Act of 1934, as amended (the "Exchange Act"), and
any and all regulations promulgated thereunder, and to file the same,
with all exhibits thereto, and any other documents in connection
therewith, with the Securities and Exchange Commission, and with
any other entity when and if such is mandated by the Exchange Act,
granting unto said attorneys-in-fact and agents full power and
authority to do and perform each and every act and thing requisite
and necessary fully to all intents and purposes as the undersigned
might or could do in person thereby ratifying and confirming all
that said attorneys-in-fact and agents, or their substitute or
substitutes, may lawfully do or cause to be done by
virtue hereof.


IN WITNESS WHEREOF, this Power of Attorney has been signed as
of October 6, 2015.



Signature:

/s/Charles J. McDermott


Name:
Charles J. McDermott