Rated output efficiency of solar power inverter for home use


Rated output efficiency is defined as the ratio of the output power to the input power under the specified operating conditions, expressed as a percentage. In general, the nominal efficiency of photovoltaic home power inverters are the efficiency of a pure resistive load under the condition of 80% load efficiency. Inverter efficiency will change with the size of the load, when the load rate is lower than 20% and higher than 80%, the efficiency is lower. When standard inverter output power is greater than 75% of the rated power, the efficiency should be greater than or equal to 80%. At present, the nominal efficiency of the main inverter is between 80％ to 95％, and the efficiency is not less than 85% for the small power inverter for home use. In the design of photovoltaic power generation system, not only to choose a high efficiency home power inverters, but also through rational allocation, as far as possible to make the solar inverter system load at the best efficiency point.

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