Solar FAQs: weather, dust and cleaning

Questions

• Does solar work in smog and winter fog?

  Yes, but output drops.

• How much does output drop in winter?

  Winter days are shorter and the sun is lower.

• Does extreme summer heat reduce output?

  Yes.

• How often should panels be cleaned in dust?

  In most of Punjab, about every 1–2 weeks.

• Can panels handle hail, storms and strong wind?

  Tier-1 panels are tested for hail impact and wind and snow load.

• What about monsoon rain and lightning?

  Rain does no harm to panels and washes off dust.

• Can a solar geyser or heat pump cut my winter bill?

  Yes, and often better than running an electric geyser from solar panels.