PROMISSORY NOTE

THE UNDERSIGNED REPRESENTS THAT THE LOAN EVIDENCED HEREBY IS BEING OBTAINED FOR BUSINESS/COMMERCIAL OR AGRICULTURAL PURPOSES. For value received, the undersigned, jointly and severally, if more than one, promises to pay to BRANCH BANKING AND TRUST COMPANY, a North Carolina banking corporation (the ”Bank”), or order, at any of Bank's offices in the above referenced city (or such other place or places as may be hereafter designated by Bank), the sum of FIVE MILLION AND 00/100 Dollars ($5,000,000.00), in immediately available coin or currency of the United States of America.

See Addendum to Promissory Note attached hereto.

Interest only payments commencing on May 22, 2013, and on the 22^nd day of each month thereafter, through and including the interest only payment due October 22, 2013. Thereafter, commencing on November 22, 2013, and on the same day of each month thereafter, monthly payments of principal in the amount of $92,592.59 plus accrued interest, with one final payment of all remaining principal and accrued interest due on April 22, 2018.

The undersigned shall pay to Bank a late fee in the amount of five percent (5%) of any installment past due for ten (10) or more days. When any installment payment is past due for ten (10) or more days, subsequent payments shall first be applied to the past due balance. In addition, the undersigned shall pay to Bank a returned payment fee if the undersigned or any other obligor hereon makes any payment at any time by check or other instrument, or by any electronic means, which is returned to Bank because of nonpayment due to nonsufficient funds.

All interest shall be computed and charged for the actual number of days elapsed on the basis of a year consisting of three hundred sixty (360) days. In the event periodic accruals of interest shall exceed any periodic fixed payment amount described above, the fixed payment amount shall be immediately increased, or additional supplemental interest payments required on the same periodic basis as specified above (increased fixed payments or supplemental payments to be determined in the Bank's sole discretion), in such amounts and at such times as shall be necessary to pay all accruals of interest for the period and all accruals of unpaid interest from previous periods. Such adjustments to the fixed payment amount or supplemental payments shall remain in effect for so long as the interest accruals shall exceed the original fixed payment amount and shall be further adjusted upward or downward to reflect changes in the variable interest rate; provided that unless elected otherwise above, the fixed payment amount shall not be reduced below the original fixed payment amount. However, Bank shall have the right, in its sole discretion, to lower the fixed payment amount below the original payment amount.

This note ("NOTE") is given by the undersigned in connection with the following agreements (if any) between the undersigned and the Bank:

No delay or omission on the part of the holder in exercising any right hereunder shall operate as a waiver of such right or of any other right of such holder, nor shall any delay, omission or waiver on any one occasion be deemed a bar to or waiver of the same or of any other right on any future occasion. Every one of the undersigned and every endorser or guarantor of this note regardless of the time, order or place of signing waives presentment, demand, protest and notices of every kind and assents to any one or more extensions or postponements of the time of payment or any other indulgences, to any substitutions, exchanges or releases of collateral if at any time there be available to the holder of collateral for this note, and to the additions or releases of any other parties or persons primarily or secondarily liable.

The failure to pay any part of the principal or interest when due on this Note or to fully perform any covenant, obligation or warranty on this or on any other liability to the Bank by any one or more of the undersigned, by any affiliate of the undersigned (as defined in 11 USC Section (101) (2)), or by any guarantor or surety of this Note (said affiliate, guarantor, or surety are herein called Obligor); or if any financial statement or other representation made to the Bank by any of the undersigned or any Obligor shall be found to be materially incorrect or incomplete; or if any of the undersigned shall fail to furnish information to the Bank sufficient to verify the identity of the undersigned as required under the USA Patriot Act; or in the event of a default under any of the Agreements or any other obligation of any of the undersigned or any Obligor; or in the event the Bank demands that the undersigned secure or provide additional security for its obligations under this Note and security deemed adequate and sufficient

by the Bank is not given when demanded; or in the event one or more of the undersigned or any Obligor shall die, terminate its existence, allow the appointment of a receiver for any part of its property, make an assignment for the benefit of creditors, or where a proceeding under bankruptcy or insolvency laws is initiated by or against any of the undersigned or any Obligor; or in the event the Bank should otherwise deem itself, its security interest, or any collateral unsafe or insecure; or should the Bank in good faith believe that the prospect of payment or other performance is impaired; or if there is an attachment, execution, or other judicial seizure of all or any portion of the Borrower's or any Obligor's assets, including an action or proceeding to seize any funds on deposit with the Bank, and such seizure is not discharged within 20 days; or if final judgment for the payment of money shall be rendered against the Borrower or any Obligor which is not covered by insurance or debt cancellation and shall remain undischarged for a period of 30 days unless such judgment or execution thereon is effectively stayed; or the termination of any guaranty agreement given in connection with this Note, then any one of the same shall be a material default hereunder and this Note and other debts due the Bank by any one or more of undersigned shall immediately become due and payable at the option of the Bank without notice or demand of any kind, which are hereby waived. From and after any event of default hereunder, interest shall accrue on the sum of the principal balance and accrued interest then outstanding at the variable rate equal to the Bank's Prime Rate plus 5% per annum ("Default Rate") until such principal and interest have been paid in full, provided that such rate shall not exceed at any time the highest rate of interest permitted by the laws of the State of Florida; and further provided that such rate shall also apply after judgement. In addition, upon default, the Bank may pursue its full legal remedies at law or equity, and the balance due hereunder may be charged against any obligation of the Bank to any party including any Obligor. Bank shall not be obligated to accept any check, money order, or other payment instrument marked "payment in full" on any disputed amount due hereunder, and Bank expressly reserves the right to reject all such payment instruments. Borrower agrees that tender of its check or other payment instrument so marked will not satisfy or discharge its obligation under this Note, disputed or otherwise, even if such check or payment instrument is inadvertently processed by Bank unless in fact such payment is in fact sufficient to pay the amount due hereunder.

Unless otherwise required under a Loan Agreement, if applicable, and as long as any indebtedness evidenced by this Note remains outstanding or as long as Bank remains obligated to make advances, the undersigned shall furnish annually an updated financial statement in a form satisfactory to Bank, which, when delivered shall be the property of the Bank.

The term "Prime Rate," if used herein, means the rate of interest per annum announced by the Bank from time to time and adopted as its Prime Rate. The Prime Rate is one of several rate indexes employed by the Bank when extending credit, and not necessarily the lowest rate. Any change in the interest rate resulting from a change in the Bank's Prime Rate shall become effective as of the opening of business on the effective date of the change. If this Note is placed with an attorney for collection, the undersigned agrees to pay, in addition to principal, interest and late fees, if any, all costs of collection, including but not limited to reasonable attorneys' fees. All obligations of the undersigned and of any Obligor shall bind his heirs, executors, administrators, successors, and/or assigns. Use of the masculine pronoun herein shall include the feminine and the neuter, and also the plural. If more than one party shall execute this Note, the term "undersigned" as used herein shall mean all the parties signing this Note and each of them, and all such parties shall be jointly and severally obligated hereunder. Wherever possible, each provision of this Note shall be interpreted in such a manner to be effective and valid under applicable law, but if any provision of this Note shall be prohibited by or invalid under such law, such provision shall be ineffective but only to the extent of such prohibition or invalidity, without invalidating the remainder of such provision or the remaining provisions of this Note. All of the undersigned hereby waive all exemptions and homestead laws as may be permitted by Florida law. The proceeds of the loan evidenced by this Note may be paid to any one or more of the undersigned.

From time to time the maturity date of this Note may be extended, or this Note may be renewed in whole or in part, or a new note of different form may be substituted for this Note, or the rate of interest may be modified, or changes may be made in consideration of loan extensions, and the holder hereof, from time to time may waive or surrender, either in whole or in part any rights, guaranties, secured interest, or liens, given for the benefit of the holder in connection with the payment and the securing the payment of this Note; but no such occurrence shall in any manner affect, limit, modify, or otherwise impair any rights, guaranties or security of the holder not specifically waived, released, or surrendered in writing, nor shall the undersigned, or any obligor, either primarily or contingently, be released by reason of the occurrence of any such event. The holder hereof, from time to time, shall have the unlimited right to release any person who might be liable hereon, and such release shall not affect or discharge the liability of any other person who is or might be liable hereon. No waivers and modifications shall be Valid unless in writing and signed by the Bank. The Bank may, at its option, charge any fees for the modification, renewal, extension, or amendment of any of the terms of the Note permitted by the laws of the state of Florida. In case of a conflict between the terms of this Note and the Loan Agreement or Commitment Letter issued in connection herewith, the priority of controlling terms shall be first this Note, then the Loan Agreement, and then the Commitment Letter. This Note shall be governed by and construed in accordance with the laws of Florida.

Borrower: Southeast Power Corporation

Account Number: 9660933120

Note Amount: $5,000,000.00

Note Number: 00010

Date: April 22, 2013

IN WITNESS WHEREOF, THE UNDERSIGNED, on the day and year first written above, has caused this instrument to be executed under seal.