6 Solar technologies to power the world

At last, solar energy is big enough and cheap enough to power electrical grids. Business 2.0 features the latest projects under the sun.

Distributed power tower
What happens if the sun's not shining? Bright Source Energy has a solution called a distributed power tower: Mirrors focus the sun's rays on a boiler, creating steam which drives a generator. Natural gas can be used to power the plant when the sun isn't shining.

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Green Wombat Find bonus material on the technology and companies behind Big Solar on Todd Woody's blog. (more)
Big Solar's day in the sun The economics -- and the technology -- of turning light into electricity have changed. We have the inside look at the industrial-strength power plants coming soon to a grid near you. (more)
Go green, get rich Meet the companies tackling nine of humanity's biggest problems -- and making millions saving us from ourselves. (more)

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Most stock quote data provided by BATS. Market indices are shown in real time, except for the DJIA, which is delayed by two minutes. All times are ET. Disclaimer. Morningstar: © 2018 Morningstar, Inc. All Rights Reserved. Factset: FactSet Research Systems Inc. 2018. All rights reserved. Chicago Mercantile Association: Certain market data is the property of Chicago Mercantile Exchange Inc. and its licensors. All rights reserved. Dow Jones: The Dow Jones branded indices are proprietary to and are calculated, distributed and marketed by DJI Opco, a subsidiary of S&P Dow Jones Indices LLC and have been licensed for use to S&P Opco, LLC and CNN. Standard & Poor's and S&P are registered trademarks of Standard & Poor's Financial Services LLC and Dow Jones is a registered trademark of Dow Jones Trademark Holdings LLC. All content of the Dow Jones branded indices © S&P Dow Jones Indices LLC 2018 and/or its affiliates.