AMENDMENT NO. 2
THIS AMENDMENT TO FACILITIES AND SUPPORT SERVICES AGREEMENT is
effective as of May 15, 2008 between Tecogen Inc., a Delaware corporation (“ Tecogen ”), and American DG
Energy Inc., a Delaware corporation (“ ADG Energy” ).
NOW, THEREFORE, for good and valuable consideration, the receipt and sufficiency of which is
hereby acknowledged, the parties hereby reaffirm all of the provisions of the Facilities and Support Services
Agreement, dated January 1, 2006 (the “Agreement”), except that the following paragraphs shall be substituted
for the corresponding paragraphs in the Agreement.
1. Office and Infrastructure
Tecogen will provide to ADG Energy the following office and infrastructure support services for a period
from the date of this Agreement through the Termination Date (as such term is defined in Section 2 below):
(a) Office Space. Approximately 1,872 allocated square feet of space in Tecogen’s offices located
at 45 First Avenue, Waltham, Massachusetts 02451 (the “ Building ”), which shall include three (3) offices and a
shared conference room. Tecogen will also provide ADG Energy with water, sewer, electrical, phones and other
utility services, heating, ventilation and air-conditioning, and cleaning and janitorial services. Tecogen may change
the space in the Building occupied by ADG Energy from time to time during the term of this Agreement. Tecogen
will provide such space and services at a flat rate of $2,780.00 per month. If additional space is provided, this
flat fee will increase at an annual rate of $15.93 per square foot for any additional office space and $12.96 per
square foot for any additional manufacturing space. Copy machine usage, office supplies, postage and shipping,
secretarial & receptionist services, Internet service, telephone support and IT support are not included in the
monthly rate and will be billed separately.
(c) Insurance and Employee Benefit Plans. To the extent it i