Evaluating Solar Energy in Cape Town, South Africa
Solar Overview
Cape Town's solar energy potential is characterized by 3,102 sun hours yearly, with the highest irradiation in January. At -33.92° latitude, Cape Town benefits from relatively consistent solar angles throughout the year, providing stable energy production. Cape Town presents good opportunities for solar energy development, with above-average irradiation supporting viable projects.
Geographic Impact
Cape Town's location at -33.9249° latitude and 18.4241° longitude plays a crucial role in determining solar production patterns. This latitude offers excellent solar conditions with minimal seasonal variation, typically seeing winter production at 70-80% of summer levels.
Rating Methodology
Cape Town receives a "Good" rating for solar potential, derived from comprehensive analysis of 3,102 annual sun hours, 17.1°C average temperature, and geographic factors. The balanced thermal environment supports optimal panel performance and extended system lifespan. Solar installations in Cape Town typically achieve capacity factors of 15-18%, supporting strong financial returns.
Understanding the Data
The visualization below presents the annual cycle of sun hours in Cape Town. The data shows well-distributed solar production across months, with January showing peak irradiation. This seasonal pattern is typical for locations at this latitude and influences the sizing and economics of solar installations.
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