5. ACQUISITION CONVERTIBLE PROMISSORY NOTES On January 31, 2014, the Company entered into a securities purchase agreement providing for the sale of four 4% convertible promissory notes in the aggregate principal amount of $1,750 as part of the consideration paid to acquire 100% of the issued and outstanding stock of SUNworks. The notes are convertible at any time after issuance into shares of fully paid and non-assessable shares of common stock. The conversion price is $0.52 per share until March 30, 2015, which has been amended to extend to March 31, 2016, and thereafter the conversion price will be the greater of $0.52 or 50% of the average closing price of the common stock during the ten (10) consecutive trading days following the submission of the conversion notice. The Notes are five (5) year notes and bear interest at the rate of 4% per annum. As amended on June 30, 2015, the Company will make quarterly payments of principal and interest payable over a three year period commencing March 31, 2016. In February and March 2014, $625 of the notes was converted into 1,201,923 shares of common stock, leaving a remaining balance of $1,125 as of December 31, 2014. During the nine months ended September 30, 2015, the Company issued 528,846 shares of common stock upon conversion of principal in the amount of $275. The principal balance remaining as of September 30, 2015 is $850. The Company recorded amortization of the beneficial conversion feature as interest expense in the amount of $234 during the nine months ended September 30, 2015. On February 28, 2015, the Company entered into a securities purchase agreement providing for the sale of a 4% convertible promissory note in the aggregate principal amount of $2,650 as part of the consideration to paid acquire 100% of the total outstanding stock of MD Energy. The note is convertible into shares of common stock on or after each of the following dates: November 30, 2015, November 30, 2016 and November 30, 2017. The conversion price shall be $2.60 per share. A beneficial