The higher an inverter’s efficiency, the more energy is generated per year, which means a better return on investment for a solar farm. With 97.5% CEC efficiency and 225 to 500-kilowatt options, Solectria Renewables’ SMARTGRID series of inverters (SGI) are ideal for utility-scale solar farms.
Currently, there are concerns about having transformerless electrical systems feed into the public utility grid because of the lack of galvanic isolation between the DC and AC circuits could allow the passage of dangerous DC faults to be transmitted to the AC side. However, the SGI series includes a transformer that provides galvanic isolation. In other words, the transformer electrically isolates the input power circuit between the PV array and the grid to prevent dangerous faults.
The manufacturer also says the inverters have one of the lowest nighttime tare losses in the industry. This means using a SGI-series inverter will have the least amount of energy loss at night from a charged control. In addition, the inverter also offers utility options such as VAR support, low-voltage ride through, controlled ramp rate and remote power control. The series includes five power levels: 225 kW, 250 kW, 266 kW, 300 kW and 500 kW, all rugged and durable enough to withstand the outdoor rough weather environments where solar farms are located. SPW