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AhaBulb: Stuff Everyone Should Know · ahabulb.com/solar-cleaning-method

What does NREL's operations and maintenance guide recommend for cleaning PV modules?

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  1. A pressure washer on high
  2. Plain demineralized water and a mild detergent
  3. Abrasive scrub pads and solvent

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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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