Gulf Renewable Energy Resource

Tools, guides, and analysis for solar, wind, and clean energy across Saudi Arabia and the GCC.

Free tools

Calculate, compare, decide.

Practical calculators built for Gulf homeowners and businesses — using real NASA solar data and SEC tariff defaults.

Estimate generation, savings, and payback for any roof in seconds.

Convert AWG to mm² with ampacity tables.

Convert between kWh, BTU, Joules, and more.

Find the right cable size for your solar installation.

Compare home-charging vs petrol costs across GCC tariffs.

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Right-size your backup battery against night-time and outage loads.

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Calculate your return on investment and payback period.

NASA POWER climatology SEC tariff defaults No sign-up required Bilingual EN / AR

Reference data

Up-to-date GCC tariff comparisons, satellite-derived solar irradiance, and country-by-country net metering rules — sourced and cited.

Compare residential and commercial tariffs across all six Gulf countries — with VAT and payback impact.

19 GCC cities with annual GHI, optimal tilt, and 12-month profiles — live from NASA POWER.

Country-by-country net metering rules, RE targets, and regulators across the GCC.