Boston, MA – September 9,
2009 – Ambient Corporation (OTCBB: ABTG) today announced a long-term agreement with Duke Energy to provide communication technologies for the utility’s next phase of its smart grid deployment.

“Duke is pleased to expand
our relationship with Ambient through the execution of this agreement. Ambient’s two-way communication node advances our vision of building a smart grid intelligent network that supports the integration of numerous devices on the grid,” said Todd Arnold, Duke Energy’s SVP of Smart Grid and Customer Systems.

The contract calls for
Ambient to provide its X-series communications node as the central communications technology to transmit data from residential and commercial smart meters, and other applications back to the utility’s network operations center. This communications node allows for the efficient collection, analysis and management of energy demand through collected usage data to promote more reliable, affordable and environmentally friendly operations.

“This contract continues a
strong collaboration with Duke Energy from early smart grid development projects begun in 2005,” said John J. Joyce, President and CEO of Ambient Corporation. “We are pleased to work with Duke Energy to provide a key component of its communications platform, helping to achieve its vision for a smart grid network.”