ST. PETERSBURG, Fla., Dec. 6 /PRNewswire-FirstCall/ -- On November 29, 2005, World Energy Solutions, Inc. (BULLETIN BOARD: WEGY) (WES) acquired all right, title, and interest in and to a patent for "Method and Apparatus for the Production of Hydrogen and Oxygen" (Patent # 11254593) from Robert J. dePalo. This patent was acquired in order to further develop the described invention for the economical production of hot water on demand.

"We are very excited about our acquisition of these patent rights," says Benjamin Croxton, Chief Executive Officer and Chief Financial Officer of WES. "Our prototype apparatus, utilizing our technology, has heated ground water from 70 degrees F to 195 degrees F in less than 15 seconds using common household electrical current at a cost of 6 (six) 10ths (6/10) of a penny per minute," says Croxton.

"Utilizing common household current to create hydrogen/oxygen gas (from water) allows us to operate our design anywhere in the world where there is electricity. It is the goal of WES to further develop this technology for potential use in commercial, industrial, residential and military applications," stated Croxton.

World Energy Solutions, Inc. now trades under the OTCBB: Symbol WEGY (WES was formerly Advanced 3-D Ultrasound Services, Inc. trading under the OTCBB: Symbol AVDU).

Forward-Looking Statements

Certain matters discussed in this press release are "forward-looking statements." These forward-looking statements can generally be identified as such because the context of the statement will include words, such as World Energy Solutions "expects," "should," "believes," "anticipates" or words of similar import. Similarly, statements that describe World Energy Solutions' future plans, objectives or goals are also forward-looking statements. Such forward-looking statements are subject to certain risks and uncertainties, including the financial performance of World Energy Solutions, which could cause actual results to differ materially from those currently anticipated. Although World Energy Solutions believes the expectations reflected in any forward-looking statements are based on reasonable assumptions, they cannot give any assurance that their expectations will be attained. Shareholders, potential investors and other readers are urged to consider these factors carefully in evaluating any forward-looking statements. Certain factors could cause results and conditions to differ materially from those projected in these forward-looking statements, and some of these factors are discussed below. These factors are not exhaustive. New factors, risks and uncertainties may emerge from time to time that may affect the forward-looking statements made herein. These forward-looking statements are only made as of the date of this press release and World Energy Solutions does not undertake any obligation to publicly update such forward-looking statements to reflect subsequent events or circumstances.

CONTACT: World Energy Solutions St. Petersburg, FL Paula Scott, Director of Investor Relations ir@wesinc.net (727) 525-5552

CONTACT: Paula Scott, Director of Investor Relations, World Energy
Solutions, +1-727-525-5552, or ir@wesinc.net