CNNMoney.com
Companies Economy International Corrections Pre-market trading After-hours trading Winners/losers/actives Bonds Currencies Commodities Money Magazine Retirement Mutual Funds Taxes Ask the Expert Money 101 Autos Loan Center Best Places to Live Calculators Mortgage Rates Personal tech Big Tech blog Techland blog Sectors and stocks Fortune 500 techs Tech Talk 100 best places to launch Ultimate resource guide Small biz makeovers FSB 100 Ask & Answer Fortune 500 Technology Investing Management Rankings Main Create portfolio Edit portfolio Create Alerts Edit Alerts
Heating and cooling
Heating and cooling
They account for almost 30 percent of a building's energy use. By transferring heat between the building and the earth using a system that circulates heat-absorbing liquid through underground wells, a building can reduce energy usage. A combined heat-and-power plant, fueled by natural gas, operates at up to 90 percent efficiency and supplies the power that the solar panels cannot.
Building for the children Architect William McDonough talks about what drives his artful eye, in this online video. (more) VIDEO
Next year's models On a recent prowl through Tokyo's electronic alleyways, our tech guru was drawn to six stylish products. None is available in the U.S., but that may just be a matter of time. (more)
© 2008 Cable News Network. A Time Warner Company. All Rights Reserved. Terms under which this service is provided to you. Privacy Policy
Copyright © 2008 BigCharts.com Inc. All rights reserved. Please see our Terms of Use.
MarketWatch, the MarketWatch logo, and BigCharts are registered trademarks of MarketWatch, Inc.
Intraday data delayed 15 minutes for Nasdaq, and 20 minutes for other exchanges. All Times are ET.
Intraday data provided by Interactive Data Real-Time Services and subject to the Terms of Use.
Historical, current end-of-day data, and splits data provided by Interactive Data Pricing and Reference Data.
Fundamental data provided by Hemscott.
SEC Filings data provided by Edgar Online Inc..
Earnings data provided by FactSet CallStreet, LLC.