Item 2.02. Results of Operations and Financial Condition. On November 13, 2024, the registrant issued a press release with earnings commentary and supplemental information for the three and nine months ended September 30, 2024. The press release is furnished as Exhibit 99.01 to this Current Report on Form 8-K. The information in this Item 2.02 and Exhibit 99.01 to this Current Report on Form 8-K shall shall not be deemed “filed” for purposes of Section 18 of the Exchange Act or otherwise subject to the liabilities of that section, nor shall it be deemed incorporated by reference in any filing under the Securities Act or the Exchange Act, except as expressly set forth by specific reference in such a filing.

Item 7.01. Regulation FD Disclosure. On November 14, 2024, the registrant will present the attached slides online in connection with an earnings conference call. The slides are being furnished as Exhibit 99.02 to this Current Report on Form 8-K. The information in this Item 7.01 and Exhibit 99.02 to this Current Report on Form 8-K shall not be deemed “filed” for purposes of Section 18 of the Exchange Act or otherwise subject to the liabilities of that section, nor shall it be deemed incorporated by reference in any filing under the Securities Act or the Exchange Act, except as expressly set forth by specific reference in such a filing.

Item 9.01. Financial Statements and Exhibits. (d) Exhibits The following exhibits relating to Items 2.02 and 7.01 shall be deemed to be furnished, and not filed: Exhibit Description 99.01 Earnings Release dated November 13, 2024 for the three and nine months ended September 30, 2024 99.02 Tecogen Earnings Call Presentation dated November 14, 2024 ──────────────────────────────────────────────────────────────────────────────────────────────────────────────── SIGNATURES Pursuant to the requirements of the Securities Exchange Act of 1934, the Company has duly caused this report to be signed on its behalf by the undersigned, hereunto duly authorized. By: /s/ Abinand Rangesh Abinand Rangesh, Chief Executive Officer