Engineering, Procurement and Construction of 400/220/110kv Substation in Verna. (The Inter Boarder Power Exchange Project) This project includes construction of 120km HV QUAD conductors OHL and transverses through the black sea corridor for energy exchange program. it also includes procurement installation testing and commissioning of 3x300 MVA and 3x150MVA also included in this project are 12 x 220/110kv switchyard and extensions bay for connection to the Bulgarian inter cities and to enhance the cross-border energy transfer capacity between Bulgaria and neighboring countries.