The JSV is qualified contractor by EDP since February 2016 for installation and maintenance of networks of Low and Medium voltage. In the electrical area JSV offers all kinds of solutions for electrical distribution networks Low Voltage and Medium Voltage and indoor housing facilities, commerce or industry. Electrical branches, electrical input upgrades, electrical augmentation, transformation post, medium voltage networks, are just some of the solutions we have at your disposal, from the execution of the service itself, to the handling of all the necessary documentation to Competent Entities.