NREL says failure of which component is one of the most frequent causes of lost PV performance?

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  1. The inverter
  2. The roof flashing
  3. The racking bolts

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References

  1. NREL: Best Practices for O&M of PV and Energy Storage Systems, 3rd ed. (2018) docs.nlr.gov/docs/fy19osti/73822.pdf Checked 2026-10-10.

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