Business Loan

On September 11, 2009, the Company entered into a Loan Agreement in the aggregate principal amount of $300,000 with the Wisconsin Department of Commerce (the “Department”).  The outstanding principal balance bears interest at the annual rate of 2%. Payment of interest and principal is to be made in the following manner: (a) payment of any and all interest that accrues from the date of disbursement commenced on January 1, 2010 and continued on the first day of each consecutive month thereafter through and including December 31, 2010; (b) commencing on January 1, 2011 and continuing on the first day of each consecutive month thereafter through and including November 1, 2016, the Company is required to pay equal monthly installments of $4,426; followed by a final installment on December 1, 2016 which shall include all remaining principal, accrued interest and other amounts owed by the Company to the Department under the Loan Agreement.  The Company may prepay amounts outstanding under the credit facility in whole or in part at any time without penalty. The Loan Agreement is secured by substantially all of the Company’s assets and the proceeds from this loan were used for the working capital requirements of the Company. The Loan Agreement contains covenants which required, among other things, that the Company keep and maintain 75 existing full-time positions and create and fill 35 additional full-time positions in Milwaukee, Wisconsin by December 31, 2012. On June 18, 2012, the Department agreed to permanently waive all penalties associated with the Company’s noncompliance with this covenant. The outstanding borrowings under the agreement as of December 31, 2013 and 2012 were $154,463 and $203,947, respectively.

Promissory Note

On March 4, 2011, the Company sold all its Series 5 PLC product line assets to Wisconsin-based Dynamic Ratings, Inc. (“Purchaser”) under an Asset Purchase Agreement (“APA”).  Per the APA, the Company signed an unsecured Promissory Note (the “Note”) due to Purchaser in the aggregate principal amount of $700,000. The outstanding principal balance bears interest at the annual rate of 6% and was originally due on March 31, 2014. The Note may be prepaid in whole or in part, without penalty at any time. The Note contains certain earn-out provisions that encompass both the Company’s and Purchaser’s revenue volumes.  Amounts earned under the earn-out provisions were applied against the Note on June 30, 2012 and June 30, 2013. For the quarters ended June 30, 2013 and June 30, 2012, the non-cash reduction of principal calculated under these provisions and applied to the Note was $41,902 and $15,408, respectively.  Payments not made when due, by maturity acceleration or otherwise, shall bear interest at the rate of 12% per annum from the date due until fully paid. Effective April 30, 2013, Purchaser approved an amendment to certain terms of the Note. Telkonet commenced a monthly payment of principal and interest of $20,000 to be applied against the outstanding balance starting May 1, 2013. The interest rate remains unchanged at 6% and the maturity date was extended to January 1, 2016. The outstanding principal balance of the Note as of December 31, 2013 and 2012 was $506,024 and $684,592, respectively.

Revolving Credit Facility

On May 31, 2013, the Company entered into a Revolving Credit Facility (the “Agreement”) with Bridge Bank, NA, (the “Bank”) in a principal amount not to exceed $2,000,000. The Agreement is subject to a borrowing base that is equal to the sum of 80% of the Company’s eligible accounts receivable and 25% of the eligible inventory. On August 1, 2013 the Agreement was modified to include the eligible receivables and the eligible inventory of Ethostream. The Agreement is available for working capital and other lawful general corporate purposes. The outstanding principal balance of the facility bears interest at Prime Rate plus 2.75%. The Company’s borrowing base at December 31, 2013 was approximately $791,000 and the outstanding balance was zero. As of September 30 and December 31, 2013, the Company was in violation of a financial performance covenant. The outstanding balance at March 31, 2014 is $200,000. The Company is currently in negotiations with the Bank to modify the existing Agreement.

Aggregate annual future maturities of long-term debt as of December 31, 2013 are as follows: