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SESK: Stuff Everyone Should Know · sesk.info/solar-kwh-m2

Solar radiation data for PV is often given in what units?

Kilowatt-hours per square meter (kWh/m2).

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  1. Kilowatt-hours per square meter ✔
  2. Volts per ampere
  3. Degrees per hour

Why: This tells how much solar energy lands on each square meter. It is the basis for estimating how much your panels can produce.

Huh, didn't know that: Instant sunlight strength can also be expressed in watts per square meter (W/m2).

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A PUNNY BOOK: "All About the Sun" by U.V. Rays.
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References

Answer: Kilowatt-hours per square meter. This tells how much solar energy lands on each square meter. It is the basis for estimating how much your panels can produce.

  1. DOE: Solar Radiation Basics www.energy.gov/eere/solar/solar-radiation-basics
    kilowatt-hours per square meter (kWh/m2)
    Checked 2026-10-10.

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