16 . BUSINESS COMBINATION Acquisition o f Certain Assets from the Acro Group On February 8, 2013, IES Renewable Energy, LLC ( IES Renewable ), an indirect wholly-owned subsidiary of the Company, entered into an Asset Purchase Agreement with a group of entities operating under the name of the Acro Group : Residential Renewable Technologies, Inc., Energy Efficiency Solar, Inc. and Lonestar Renewable Technologies Acquisition Corp . (collectively, the  Acro Group ). Pursuant to the terms of the As set Purchase Agreement, the Company agreed to acquire certain assets in connection with the Acro Group s turn-key residential solar integration business (the  Acquired Assets ). The Acquired Assets include, but are not limited to, assets relating to the A cro Group s solar installation sales and marketing platform and the backlog of contracts entered into by the Acro Group with residential solar customers, which provide for the payment of sales and marketing fees in connection with the sale, installation an d third-party financing of residential solar equipment. The transaction closed on February 15, 2013 (the  Closing Date ). Following consummation of the transaction, IES Residential, Inc. ( IES Residential ), a wholly-owned subsidiary of the Company, b egan offering full-service residential solar integration services, including design, procurement, permitting, installation, financing services through third parties and warranty services for residential customers . IES Residential had previously provided s olar installation subcontracting services to the Acro Group , and as of February 8, 2013, was owed $ 3,800 for subcontracting services provided up to that date (such balance, as of the day prior to the Closing Date, the  Accounts Receivable Balance ). Tot al consideration received by the Acro Group for the Acquired Assets consisted of (i) IES Residential s release of the Accounts Receivable Balance, (ii) payment by IES Renewable to the Acro Group of a percentage of future gross revenue generated from the Acq uired Assets