CHICAGO, Ill., November 7, 2007 –- Fuel cell-powered hybrid buses, “green” fire suppression systems, environmentally sound refrigerants and elevators with regenerative drives are among the innovative products that United Technologies Corp. (NYSE: UTX) is presenting at this week’s 2007 Greenbuild International Conference & Expo.

UTC Chairman and Chief Executive Officer George David will address the expo, which is sponsored annually by the U.S. Green Building Council. A zero-emission bus operated by CTTRANSIT in Hartford, Connecticut, and equipped with a UTC Power fuel cell powerplant is on display Nov. 7 and 8 at Gate #42 at the West Building at McCormick Place. UTC, a founding member of the council, also is donating $1 million for development of an advanced educational Web site to bring green construction practices to a worldwide audience.

"As one of the world's largest producers of building systems and equipment, United Technologies is relentlessly pursuing new ways to improve the energy efficiency and reduce the environmental footprint of the products and systems we provide the global building industry,” said Dr. J. Michael McQuade, UTC Senior Vice President, Science and Technology.

“Through internal research and partnerships, such as with the World Business Council for Sustainable Development and the recently announced collaboration with Tsinghua University in Beijing, we are developing technologies and system architectures that will improve environmental performance, comfort and productivity, and ultimately help us achieve UTC’s goal of zero net energy buildings,” McQuade said.

UTC’s exhibition booth, No. 1518, is made with several reusable materials including carpet tiles from 74 percent recycled content, renewable bamboo hardwood, and countertops with 30 percent recycled materials. Following the show, UTC will donate arborvitae trees and teak park benches used in the exhibit to the Chicago Botanic Gardens.

United Technologies Corp., based in Hartford, Connecticut, is a diversified company that provides a broad range of high technology products and support services to the building systems and aerospace industries. For more information, visit www.utc.com.

Carrier
Carrier provides a broad range of market-leading products that condition interior environments of commercial, medical, government and public buildings. Examples include AquaSnap® air-cooled chillers with integrated hydronics package and Puron® refrigerant to the Evergreen® 23XRV water-cooled chiller with HFC-134a non-ozone depleting refrigerant and best-in-class full and part-load performance.

Carrier’s residential heating and cooling products bring sophisticated temperature and air quality control solutions to a personal level. Carrier systems can control humidity in a home, provide stand-by power in case of utility loss, and improve air quality for a healthier and more comfortable home. Carrier residential systems, such as the new 13 SEER Infinity™ system with Air Purifier, feature reliability, energy efficiency and ease of use.

Carrier pioneered the global phase-out of chlorofluorocarbons (CFCs) in 1993 and introduced Puron®, a non-ozone depleting refrigerant, into air conditioning systems in 1996. Carrier is leading the transition away from hydrochlorofluorocarbons (HCFCs) to further protect the ozone layer.

Otis Elevator Company
Otis’ Gen2® machine-roomless elevator system incorporates gearless permanent magnet motors that reduce energy usage by up to 50 percent compared to geared machines. The Gen2 system has unique patented flat, polyurethane-coated steel belts to hoist the elevator car. These belts require no additional lubrication, making them more efficient and cleaner for the environment. Otis has sold more than 100,000 Gen2 systems, making the system the fastest-selling product in the company's history.

Otis is also displaying ReGen™ drives -- a product that draws energy from a fully loaded descending elevator or lightly loaded ascending car, converts it to electricity, and returns it to a building’s power grid for reuse. When a ReGen drive and Gen2 elevator are combined, the system can deliver energy savings up to 75 percent compared to geared systems with non-regenerative drives.

During the past decade, Otis reduced its energy and water consumption by 60 percent. Otis recently opened the world's first green elevator manufacturing facility in China's Tianjin Economic-Development Area (TEDA). The facility was built to the USGBC's LEED Gold Standards. Recently, Fast Company magazine listed Otis’ ReGen drive and Gen2 elevator system among the top 50 ways companies are “greening” their businesses.

UTC Fire & Security
UTC Fire & Security has a growing global portfolio of green technologies, including the Hi-Fog fire suppression system that uses specially designed nozzles to decrease the size of each water droplet and uses less water than conventional sprinkler systems.

Other green fire suppression products include the Kidde Novec extinguishing system, which uses heat absorption and molecular level chemistry to rapidly put out fires. The product has a low global warming potential rating of one, an ozone-depleting potential of zero and an atmospheric lifetime of only five days.

Additionally, UTC Fire & Security’s energy management system uses sensors to detect a room’s occupancy, adjusting energy use accordingly. This reduces energy consumption by an average of 35 percent or more.

UTC Power
A zero-emission bus operated by CTTRANSIT in Hartford, Connecticut, and equipped with a UTC Power fuel cell powerplant is on display Nov. 7 and 8 at Gate #42 at the West Building at McCormick Place. Benefits of fuel cell-powered hybrid buses include zero harmful tailpipe emissions, smooth and quiet operation and fuel efficiency nearly two times that of a standard diesel-powered bus. The clean operation has an immediate positive impact on street-level emissions.

UTC Power has provided fuel cell power plants for fleet transportation in the United States and Europe since 1998. The company is also a world leader in fuel cells for on-site power and develops combined cooling, heating and power systems for the distributed energy market.

On Nov. 2, UTC Power was named an official supplier partner for the Clinton Climate Initiative. Since 1966, UTC Power’s fuel cells have provided electric power and drinking water on all U.S.-manned space flights.