American DG Energy (ADGE) Announces $1.6 Million Private Placement

WALTHAM, Mass., March 27, 2012 /PRNewswire/ — American DG Energy Inc. (NYSE Amex: ADGE), a leading On‑Site Utility, offering clean electricity, heat, hot water and cooling solutions to hospitality, healthcare, housing and athletic facilities, today announced that it has entered into a definitive agreement to sell restricted common stock for aggregate proceeds of $1,600,000 to Dr. Phillip Frost through one of his trusts.

Pursuant to the agreement, the Company sold to Dr. Frost 1,000,000 shares of restricted Common Stock at $1.60 per share at an aggregate purchase price of $1,600,000. The proceeds of the private placement will be used to fund additional installations of the Company’s On-Site Utility energy systems and for general corporate and working capital purposes.

This press release does not and shall not constitute an offer to sell or the solicitation of any offer to buy any of the securities, nor shall there be any sale of the securities, in any state or jurisdiction in which such offer, solicitation or sale would be unlawful prior to the registration or qualification under the securities laws of any state. The securities to be offered have not been registered under the Securities Act of 1933 (the “Securities Act”) or any state securities laws and may not be offered or sold in the United States absent registration or an applicable exemption from registration requirements of the Securities Act and applicable state securities laws.

About American DG Energy

American DG Energy supplies low-cost energy to its customers through distributed power generating systems. The Company is committed to providing institutional, commercial and small industrial facilities with clean, reliable power, cooling, heat and hot water at lower costs than charged by local utilities – without any capital or start-up costs to the energy user – through its On-Site Utility energy solutions. American DG Energy is headquartered in Waltham, Massachusetts. More information can be found at www.americandg.com.

FORWARD-LOOKING STATEMENTS

This press release contains forward-looking statements under the Private Securities Litigation Reform Act of 1995 that involve a number of risks and uncertainties. Important factors could cause actual results to differ materially from those indicated by such forward-looking statements, as disclosed on the Company’s website and in Securities and Exchange Commission filings. This press release does not constitute an offer to buy or sell securities by the Company, its subsidiaries or any associated party and is meant purely for informational purposes. The statements in this press release are made as of the date of this press release, even if subsequently made available by the Company on its website or otherwise. The Company does not assume any obligation to update the forward-looking statements provided to reflect events that occur or circumstances that exist after the date on which they were made.