The construction of substations of any voltage level is one of ISOTRON Saudi's core businesses areas. Our experience in designing and building 132 kV, 220 kV and 400 kV (both AIS and GIS) is based on the large number of projects we have undertaken for electricity transmission companies in the countries where the group operate (Spain, Scotland, Romania, Chile, Uruguay, Venezuela, Algeria and Morocco), as well as the projects we have developed for industrial and renewable energy developers.