Why Is My PV Module Rating Larger Than My Inverter Rating?
- In real world conditions, PV module output rarely produces power at the rated output due to thermal losses. PV module power is a product of DC current and DC voltage. In a PV module, the DC voltage is a function of PV module cell temperature. That is, DC voltage goes down as cell temperature goes up. DC current is a function of the amount of available sunlight, called irradiance, which depends on the position of the sun relative to the module orientation and to environmental conditions.