Watch: What is round-trip efficiency?

The performance of a solar + storage system is tied to the round-trip efficiency of the entire system — how many electrons are captured and then lost along the journey from the sun to the batteries to the outlets of a home? The efficiency of that system can vary depending on how it is designed and which inverter(s) and batteries are involved. Jeff McAndrew, director of sales, for clean energy solutions at Generac, explains how systems can differ and how those percentage points of efficiency affect customer ROI.

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