How do I determine a suitable solar generator and SolarMax inverter configuration?
An inverter is usually over-dimensioned so that it operates less frequently in the unfavourable partial load range. The strength of solar radiation is, after all, not always optimal, and the solar generator therefore rarely delivers its rated output. In order to achieve optimum utilisation of the SolarMax inverter, the solar generator capacity should therefore be slightly higher than the inverter capacity. We recommend (in line with the study by Fraunhofer ISE) an over-dimensioning factor of max. 15%. This value may vary depending on the location and orientation of the plant. More precise information can be obtained using our MaxDesign software, which is available free of charge from the Download section on our website. Back to Overview page Question3: I have no experience with transformerless inverters. In the past I used to install inverters with galvanic isolation. Could you tell me how a transformerless inverter is earthed? With transformerless inverters the electrical connections
