MANHASSET NY— EnOcean Alliance members showcased more than 100 building automation products manufactured by 11 different companies at GreenBuild 2009 event for sustainable buildings.

Each of the 100+ products is interoperable because each has in common the EnOcean wireless standard.

Leviton, Verve Living Systems, Philips Ledalite, Osram Sylvania, Douglas Controls, Echoflex Solutions, EMerge Alliance, EnOcean, Illumra, Spartan Peripheral Devices & Tambient were on hand at GreenBuild to show energy harvesting wireless products that manage HVAC and lighting energy consumption in buildings and are motored by EnOcean's energy harvesting technologies.

"The promise of wireless in buildings has been evident for a long time," said Jim O'Callaghan, president of EnOcean North America, in a statement. "But widespread integration has been held back by the challenge of powering the wireless sensor networks. EnOcean transcended that giant barrier through energy harvesting."

EnOcean-based sensors and switches are powered by ambient sources of energy — such as light, temperature and motion. Once captured, ambient energies are used to power radio signals that automate energy conservation in buildings. 100,000 buildings worldwide currently house EnOcean-based controls.

The wireless sensors, switches and controllers inside sustainable buildings are interoperable " regardless of the manufacturer.

More than 120 companies have joined the EnOcean Alliance. The resulting products significantly reduce energy consumption and the costs attached to system installation and maintenance.

EnOcean (www.enocean.com) is a spin-off of Siemens AG and has U.S. operations based in Boston.