.biz - N.C. approves 150 free electric car chargers for Duke Energy customers | newsobserver.com blogs

"Charlotte-based Duke plans to distribute about 150 of the pods to customers who buy or the Chevy Volt, Nissan Leaf and other electric cars soon to be released to the mass market. The charging stations have a retail value of $1,500 to $2,000.
The electric company told the N.C. Utilities Commission it needs to analyze the demands the 240-volt chargers put on the electric grid to determine what upgrades will be required to prevent system overload in Charlotte and other areas where electric car owners tend to concentrate."