Aster undertakes design to commissioning of Substations of ratings from 33 kV  to 220 kV. Scope broadly covers Soil Investigation, Structural Foundations cum Construction and Supply / Installation of Equipment, Earth Mats, Cable Duct Runs, Control Rooms, Approach Roads, Culverts, Switch Yards, Fencing, Terminal Bays, Fencing etc. Installation and Testing of Power Transformers, Breakers, Isolators, CT / PT, Lightning Arrestors, Control and Relay Panels, Battery Banks, Yard Lights and Air Conditioning of Control Room etc. Substations constructed by Aster team are already in use at KPTCL for over two years.