Opalco climbs on September 2, 2008 2:05 am Old school (pole climbing) meets new technology (SCADA). OPALCO Apprentice Lineman Sean Parsons climbing a pole near Crescent Beach in Eastsound. The crew installed Nova reclosures on the lines that allow OPALCO to remotely monitor and control the power supply using SCADA (Supervisory Control and Data Acquisition) technology. This technology is part of OPALCO’s growing automated infrastructure