If the solar panel manufacturer or model of the desired panel is not prelisted, the relevant data needs to be manually entered into the fields of the “Panel Data” section
The mounting method options represent the most common styles for mounting PV panels. The options effect the calculation by determining the rise in temperature above ambient that the panels will experience in each installation style due to the amount of air circulation behind the panels which can be used for cooling.
- Roof indicates that the panels are going to be mounted on the same angle as the roof pitch, and that there will be less than 150mm (6 inches) of clearance between the backs of the panels and the roof surface. The temperature rises by 35°C for this option.
- Rack indicates that the panels will be mounted in such a way that the bottom edge of the panels will be significantly closer to the roof surface than the top edge or where there is more than 150mm (6 inches) of clearance between the backs of the panels and the roof surface. This option should also be selected if the panels will be mounted on the ground on a non-mobile rack. The temperature rises by 30°C for this option.
- Pole indicates that the panels will be mounted on a pole, or on a tracker device for following the sun across the sky. The temperature rises by 25°C for this option.
Display Temperature in
This option will switch the temperature values from °F to °C.
Lowest Ambient Temp
This temperature is used to calculate the maximum PV voltage – this must be less than the inverter Max Voc. The temperature should be the record low ambient temperature recorded at the array location.
Highest Ambient Temp
This temperature is used to calculate the panel temperature used to calculate the minimum PV voltage (along with the mount method adjustment). This must be greater than the inverter Min Vmpp. The temperature should be the annual record high temperature recorded at the array location.
Starting at 120V (derated), capable of producing full output above 175Vdc.
Max Allowable Input Power (nominal + 50%)
This value is the maximum total panel power that may be connected to the input of the inverter. However all oversized arrays that exceed 2250W will be regulated by the inverter.
Max Usable Input Power
The maximum total power that may be connected to the input of the inverter. Power in excess of this will be regulated by the inverter.
Temp Coefficient of Voc
This option will select the applicable measurement scale for the Temp Coefficient of Voc. Select either %/°C or mV/°C depending on the individual PV panels’ specifications.
The web page you are accessing has been provided for informational use only, "as is" and EnaSolar does not warrant or guarantee the accuracy or completeness of the information provided.
The results provided by using this Solar Panel Configurator are based entirely upon the information and input of each individual user. If your PV design involves two or more strings of PV panels connected in parallel to one DC input please always check and adhere to relevant regulations for PV installation in your country (e.g. AS.5033 in Australia & New Zealand), as these regulations may require combiner boxes with separate string fuses on the roof. By using the Solar Panel Configurator, you acknowledge that EnaSolar is not responsible in any way for the results generated. Each individual user has the sole responsibility to verify the input values and design of any solar array system with a certified installer and EnaSolar has no liability for any results generated.
NOTE: The EnaSolar 1.5kW, 2.0kW, 3.0kW and 3.8kW GT Solar Inverters only support balanced strings of solar panels when you connect two or more strings in parallel into the inverter. This means any configuration of solar panels should be done with all panels of the same kind (the same model) and all strings should have the same number of panels in them. For example a two string implementation could have 7 panels of the same model in each string. Any other implementation is not supported, because unbalanced strings of solar panels (for example 7 panels in one string and 8 panels in the other) will reduce the power output of the inverter by 50% or more.
The EnaSolar 4.0kW and 5.0kW GT Solar Inverters have two separate DC input stages (DC1 & DC2) and support different configurations on each input stage. However, if you want to put more than one string of panels on each input stage; those will have to be balanced as well. For example it is OK to connect 7+7 panels on DC1 and 8+8 panels on DC2 on one of these inverters. It is NOT OK to connect 7+8 panels on DC1 and 7+8 panels on DC2.
By using EnaSolar Solar Panel Configurator you confirm your understanding of and agreement with the above stated terms.