Washington Utilities and Transportation Commission issues extension for Avista and Hydro One merger decision

TORONTO and SPOKANE, WA, July 20, 2018 /PRNewswire/ - Hydro One Limited ("Hydro One") (TSX: H) and Avista Corporation ("Avista") (NYSE: AVA) today received notice from the Washington Utilities and Transportation Commission (the "Commission") that it has extended the deadline for a...