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Solar Resource by Coordinates and Month

Look up NASA POWER monthly horizontal solar climatology by coordinates, preview and explicitly apply the data, or summarize a documented manual monthly series.

Use this result well

Inputs that matter
Latitude (°), Longitude (°), Monthly daily solar energy, Data source and period, and 1 more
Output to expect
Solar resource at your coordinates
  • Check the units and required inputs before comparing results.
  • Keep the assumptions with a copied result so you can reproduce the calculation later.
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Reference & details

How it works

Solar resource at your coordinates

Load NASA POWER monthly global horizontal solar energy for 2001–2020, or enter twelve documented monthly daily averages. Compare seasonality and a 365-day equivalent resource total; the data describes a climate grid, with local roof shading and array tilt assessed separately.

Common-year irradiation = Σ monthly daily kWh/m² × calendar days; average peak-sun hours = common-year irradiation / 365.

Updated: September 2026

Example Scenarios

Try this example to see the calculation, then enter actual documented values and preserve the measurement conditions. A failed or unresolved comparison is part of the record.

→ 4.120449 average PSH/day

FAQ

Load NASA POWER monthly global horizontal solar energy for 2001–2020, or enter twelve documented monthly daily averages. Compare seasonality and a 365-day equivalent resource total; the data describes a climate grid, with local roof shading and array tilt assessed separately.

Use the exact equipment data, measurement point, operating conditions and units described in the selected mode. Record source documents, dates and unresolved conditions in Sources and assumptions. Built-in examples illustrate arithmetic; they are not manufacturer ratings or approved designs.

Use Save planning case for an explicit local history entry. Copy MD keeps current inputs and notes; Download CSV exports the result breakdown. Export portable copies before clearing storage and save a separate case after changing equipment, conditions or measurements.

Only when you click Load NASA solar averages, the entered latitude and longitude are sent directly to NASA POWER for 2001–2020 monthly horizontal climate data. Preview the response and explicitly apply it. There is no automatic geolocation or background lookup; manual monthly input works without the lookup.

About Solar Resource by Coordinates and Month

Load NASA POWER monthly global horizontal solar energy for 2001–2020, or enter twelve documented monthly daily averages. Compare seasonality and a 365-day equivalent resource total; the data describes a climate grid, with local roof shading and array tilt assessed separately.