Power plant commissioning is one of the most critical phases of any power project—renewable or conventional. In Essex, companies require specialists with HV engineering expertise, safety certification, and experience across complex energy systems. VSS Power – Leading HV Commissioning Specialists in Essex We provide full testing & commissioning services for: HV Substations (132kV / 220kV / 400kV) Gas Power Plants Solar Farms Wind Turbines Battery Energy Storage Systems (BESS)