Recent underground fires have put Baltimore's 100 year old conduit system under scrutiny--again. What's going on down there? How long to replace the old system? All in the face of growing demand for electricity which flows though the conduit's wires.

My conversation is with two representatives of BGE--the conduit's biggest user. Nick Alexopulos, senior manager of communications and Sterling Sumwalt who oversees the conduit work for the utility.