Apple juice.

• Position: Charlotte

Apple Inc. amped up the fuel-cell operation at its Maiden data center from 4.8 to 10 megawatts. The expansion, scheduled to be completed in January, gives the Cupertino, Calif.-based tech giant two of the nation's largest renewable-energy installations, both in Catawba County.

2006-07 5,978 2007-08 5,311 2008-09 5,518 2009-10 6,312 2010-11 6,768 2011-12 5,793 2012-13 * 5,935 * through 17 games Note: Table made from line graph. WORKING CAPITAL | CHARLOTTE Employed: 1,069,952 YTD change: 49,382 Index: 112.0 Source: Division of Employment Security, November. Figures are not seasonally adjusted. The index is the number of jobs as a percentage of the average in 2000. Fuel cells

Fuel cells use a chemical reaction to produce electricity. Methane from rotting garbage in a nearby landfill powers this project...