The utility company will need to phase out some of its old coal-fired units and substitute them with renewable power or cleaner coal.
Disney is downgraded to 'above average' and Time Warner is upgraded to 'market perform.'
Goldman upgrades Northrop Grumman to 'neutral' and downgrades General Dynamics to 'sell.'
Canadian Pacific is upgraded to 'overweight ,' and Aflac is downgraded to 'sector perform.'
These companies paid little or no federal income tax between 2008 and 2011.
Companies including Bank of America, Citigroup, General Electric and Wells Fargo have faced shareholder anger and protests at their annual gatherings.
The huge shift to remote storage may be powered by dirty energy.
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Shares of the athletic-apparel maker were down dramatically Thursday despite a solid earnings announcement.
The Market Dispatches column has been discontinued. Here's where to find the latest stock and business news on MSN Money, and the latest from market writer Charley Blaine.
MONEY & POLITICS
Breaking up big banks is an untested solution to the too big to fail problem that attempts to isolate and dismantle large, troubled institutions while protecting the rest of the economy.
The IRS is struggling to combat identify thieves who file fraudulent tax returns in the names of older residents who don't need to file.