Guangzhou Sun Hours: Understanding Your Solar Investment
Solar Overview
Guangzhou's solar energy potential is characterized by 1,639 sun hours yearly, with the highest irradiation in October. At 23.13° latitude, Guangzhou benefits from relatively consistent solar angles throughout the year, providing stable energy production. Overall, Guangzhou is considered moderately suitable for residential and commercial solar installations.
Geographic Impact
The specific coordinates of 23.1291°N, 113.2644°E establish Guangzhou's unique solar energy potential. This lower latitude position ensures consistently high sun angles, resulting in excellent year-round solar production with minimal seasonal variation.
Rating Methodology
The "Average" solar potential rating for Guangzhou is based on multiple factors including annual sun hours (1,639), average temperature (22.4°C), and seasonal variability. The moderate temperature range is ideal for solar panel performance and longevity. The moderate solar resource supports payback periods of 10-15 years for residential systems, particularly when incentives are available.
Understanding the Data
The chart below shows the monthly distribution of sun hours in Guangzhou. Production remains consistent year-round, with October showing maximum solar irradiation. Such seasonal characteristics are important factors in determining appropriate battery storage capacity and grid integration strategies.
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