Nearly 1,000 Duquesne Light workers remain on strike with contract talks stalled.
The union says negotiators have made some progress, reaching tentative agreements on subcontracting and the use of technology.
But major issues remain, including workplace safety, wages, healthcare, retirement benefits and the use of non-union workers.
Nearly 1,000 IBEW Local 29 members have been off the job since October 1, without wages or healthcare benefits.
A strike rally is scheduled for one Wednesday afternoon as the union waits for Duquesne Light to return to the bargaining table.
