Solar Potential & Climate Data for Chicago
Solar Overview
At 41.88° latitude, Chicago receives 2,443 annual sun hours, peaking in June. Positioned at 41.88°, Chicago benefits from moderate seasonal variation, making fixed-tilt systems highly effective. Chicago presents workable conditions for solar energy, particularly when combined with energy efficiency measures and available incentives.
Geographic Impact
The coordinates 41.8781°N, -87.6298°E define Chicago's position and directly influence its solar energy characteristics. The latitude provides excellent solar geometry with minimal need for complex tracking systems, as fixed panels perform efficiently across all seasons.
Rating Methodology
The "Average" classification reflects Chicago's solar resource quality, considering its 2,443 annual sun hours and 12.4°C average ambient temperature. The cooler climate enhances photovoltaic efficiency, with panels potentially exceeding rated output during cold, sunny conditions. These conditions make solar economically viable, especially when electricity costs are high or incentives reduce initial investment.
Understanding the Data
The accompanying chart illustrates monthly solar irradiation patterns for Chicago. Summer months (June–August) account for approximately 42% of annual solar irradiation, while winter months contribute around 16%. This pattern influences both the technical design and economic viability of solar energy systems in Chicago.
Loading solar data...