The maximum usable power delivered per string is 5.7kW (15A x 380V) for S440 Power Optimizers connected to a single-phase Home Hub inverter. Installing 24 x 400W modules connected to S440
The following specifications reflect Tesla Solar Inverter with Site Controller (Tesla P/N 1538000-45-y). For specifications on Tesla Solar Inverter without Site Controller, see Tesla Solar Inverter and Solar
Maximum string power is simply the “Inverter Nominal DC Input Voltage” multiplied by the “Optimizer Maximum Output Current”. These values can be found on the inverter and optimizer datasheets
The most established and easiest way to calculate the maximum open circuit voltage is to use the STC value from the datasheet with a certain estimated lowest occurring cell temperature.
Here, the output voltage is equal to half the DC source voltage and current flows through the load and S1. Up until its maximum value, the current progressively climbs from zero.
To ensure reliability and cost optimization, single-phase string inverter systems are required to deliver high efficiency and to be compact in size. The maximum bus voltage is under 600V for safety while
1 The maximum input voltage is the upper limit of the DC voltage.
The X1-BOOST G3 supports 150% PV oversizing, 14A input per string, and a maximum PV input voltage of 600V. Designed for harsh environments, it operates across -25°C to +60°C and includes safety
The maximum recommended inverter input current is proportional to the inverter power rating divided by the fixed input voltage. Recommended input limits for each inverter can be found in the inverter
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