Finally, it is fed to the grid at 115 kV. The purpose of the substation is to collect all solar array power and feed into the grid after stepping up voltage to distribution level. This substation is based on an Arcadia design, modified for the project. Power flow is bottom to top, 34.5 kV bus to 115 kV bus.
Pre-packaged substations for solar get projects online faster and cheaper. The solar industry is discovering a new, faster, and less costly way to connect to the grid.
Utilities no longer typically build the substation but, instead, leave it to solar and wind developers, Girard said. That is especially true as solar developers move to projects in the 20 megawatt to 70 megawatt range to avoid larger installations’ complications with permitting and interconnection.
A traditional open-air substation for a 5 megawatt solar project just completed by S&C cost an estimated $1.65 million and a comparably equipped substation for a 20 megawatt site would likely be in the $2.65 million range, according to Girard. They can be finished, from first digging to commissioning, in three months, he added.
Our solar power systems and energy storage products are engineered for reliability, safety, and efficient deployment. All systems include comprehensive monitoring and control systems with remote management capabilities.
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The energy storage compact substation is a highly integrated solution that integrates photovoltaic inverters, transformers, and switchgear into one. We can provide quotation and technical support.
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