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Blog - GridFree
Multiple solar panels connected to single micro inverter
The graphs are showing the energy yields from multiple solar panels connected to single micro-inverter with a 230Watt rating. The graphs show results from a 250Wp panel, a 290Wp panel and two 250Wp panels in parallel making an equivalent of a 500Wp solar panel.
At 100% sunshine, the solar panels will provide full energy. At peak time (noon time) the maximal power from the solar panels will exceed the power rating of the MicroInverter. The micro inverter will keep working at the max rating of 230Wp, the surplus energy from the solar panels will not be harvested and it will be changes into heat at the solar panels.
At 60% sunshine, the solar panels provide only part of the energy. The 250Wp and 290Wp panels’ energy yield is less than the maximal power of the micro-inverter. The two 250Wp panels in parallel (500Wp) provide sufficiently more energy.
At 40% sunshine, it is clearly evident that the yield from the two 250Wp panels in parallel (500Wp) gives a full power and the energy harvested is much higher than from single panels.
Conclusion: These graphs show the reason why it is beneficial to have more panels connected to single MicroInverter to yield more energy in low sunshine periods.
