A top official with Northeast Utilities, the parent company of NSTAR, took to the airwaves on Tuesday to answer questions about power outages. 

Penni Conner is the Chief Customer Officer for Northeast Utilities.  Appearing on the "More Than Just Talk" program, she was question about why there wasn't more underground power lines in the northeast. Conner said underground wiring has its drawbacks....

Conner says the cost of converting to underground wiring is prohibitive.  She said it would cost the utility anywhere from $1 million to $8 million per mile to install.