Step 3 - Select the right Inverter for your system

The next component you need to design and select is the inverter. Inverters convert DC electricity to AC Electricity and can be connected to the Grid. Invertors are mainly classified as Grid-Tie/Interactive (Support Islanding) or Stand Alone Invertors. All Grid-Tie systems must use an approved Grid-Tie inverter before connecting the system to the main power lines.

When you choose an Inverter, make sure it is rated for the design system size ( in KW) i.e is rated to handle the PV Array power input, is rated for the DC system voltage and is certified as a "Grid-Tie" capable inverter with built in Islanding capability.

The design section of this site has automated the checks above and comes with a drop down list of all available commercial Inverters to help choose the right Inverter required for your system. Availability and pricing can be found at my partners Inverters section.

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Step 0: Determine the Solar Hours of your location
Step 1: Select the size of the PV System in KW to be designed and pick a PV Module
Step 2: Configure your PV Array
Step 3: Select the right Inverter for your system
Step 4: Calculate and select BOS components