Home Construction UI to build Shelton substation ConstructionEnergyFairfieldPremium Content UI to build Shelton substation By Alexander Soule - October 5, 2012 SHARE Facebook Twitter United Illuminating plans to build a new electricity substation in Shelton, at a cost of $38 million. This content is for Westfair Online members only. Please Sign in / Join to view this content. Become a member by Registering Here.