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	- How to solve Error Code 40
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Fault code:【40】Inconsistent version of parallel programReason:1. Manual upgrade failure: During the upgrade process, there may be operational errors
	- How to solve Error Code 39
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Fault code:【39】Abnormal DC component of inverter voltageReason:1. Aging of control circuit componentsThe aging of operational amplifiers, A/D conver
	- Virtual Power Plants in European and American Markets
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IntroductionVirtual Power Plants (VPPs) aggregate distributed energy resources (DERs) into unified systems, optimizing grid stability and renewable in