The 24.8-MW PV plant will supply clean renewable solar power to Nevada Energy from an array of 87,168 solar modules covering an area of 154 acres on private land, equivalent to approximately 116 football fields. The PV power plant is set to start delivering power to the grid in the second quarter of 2012.
SunEdison stated that ABB’s expertise in interconnecting solar power onto the power grid using advanced power and automation technologies played a key role in the selection, as did ABB’s expertise in high voltage connections and substations.
ABB’s scope includes engineering design, supply, construction and commissioning of the balance of system (BOS) for the power plant. This scope includes plant design and installation of PV panels, inverters and trackers.
The plant consists of the DC collection system, AC transformation center, 69 kilovolt (kV) switchyard and interconnection to the transmission line. ABB will supply 2000 kVA pad mounted transformers, medium voltage (MV) switchgear and the central plant SCADA system using the AC 500 automation system. This advanced control system provides remote control and diagnostics capability to maximize plant availability, production and efficiency.
Supervisory control is based on ABB’s AC500 programmable logic controller using Power Generation Portal (PGP) Human System Interface (HSI). This advanced control system provides remote monitoring, control and diagnostics capability to maximize production and efficient plant operation.