Project Need & Benefits

Project Need

Much of the equipment that comprises Rhode Island Energy’s M13/L14 transmission line dates back to the 1960s, and is in need of an upgrade. The electrical components will be modernized for greater reliability and improved communications.

The work will include:

• Replacing existing wooden poles and steel lattice structures that have reached the end of their useful lives with galvanized steel poles
• Replacing existing 115kV wire with a more modern 115kV wire (no change in voltage)
• Installing an optical ground wire (OPGW) to support improved communication between substations and greater lightning protection.

Project Benefits

The installation of long-lasting steel poles and a more modern electrical conductor (wire) will greatly improve the reliability of the line, significantly reduce maintenance, and extend the life of this line for decades. Along with the upgrade to the poles and wires, RIE is installing a new integrated OPGW which will serve to both protect the line as a shield wire while also providing high speed communications between substations.