13 of 25
13. Energy: Alternative sources of energy
Energy: Alternative sources of energy
Myth: We can meet our energy needs and global-warming targets with wind and solar power.

Reality: Perhaps, but not for a very long time.

While the solar and wind industries have been growing rapidly over the past decade, those two sources of power together account for less than 2% of all the electricity Americans use.

Why the lag? Solar typically is still two to three times more expensive than coal, and while wind in many places can compete with fossil fuel, it isn't a dependable source of power -- when the wind stops blowing, the electricity disappears.

Battery-storage technology may someday alleviate the problem, but even then it will take decades for alternatives to replace the massive capacity of today's $7 trillion worldwide energy market. -- B.D.

NEXT: Energy: Daytime thermostat settings?
Last updated March 26 2010: 6:04 PM ET
Email | Print | Share  |  RSS
google my aol my msn my yahoo! netvibes
Paste this link into your favorite RSS desktop reader
See all CNNMoney.com RSS FEEDS (close)
More Galleries
50 years of the Ford Mustang Take a drive down memory lane with our favorite photos of the car through the years. More
8 CEOs who took a pay cut in 2013 Median CEO pay inched up 9% in 2013 to $13.9 million. But not everyone got a bump last year. Here are eight CEOs who missed out. More
10 best convertibles now that spring has sprung It's finally time to put the top down. Here are our 10 favorite rides for the warmer months to come. More
Market indexes are shown in real time, except for the DJIA, which is delayed by two minutes. All times are ET. Disclaimer LIBOR Warning: Neither BBA Enterprises Limited, nor the BBA LIBOR Contributor Banks, nor Reuters, can be held liable for any irregularity or inaccuracy of BBA LIBOR. Disclaimer. Morningstar: © 2014 Morningstar, Inc. All Rights Reserved. Disclaimer The Dow Jones IndexesSM are proprietary to and distributed by Dow Jones & Company, Inc. and have been licensed for use. All content of the Dow Jones IndexesSM © 2014 is proprietary to Dow Jones & Company, Inc. Chicago Mercantile Association. The market data is the property of Chicago Mercantile Exchange Inc. and its licensors. All rights reserved. FactSet Research Systems Inc. 2014. All rights reserved. Most stock quote data provided by BATS.