O Fallon, MO is situated at 38.92 degrees latitude and -90.67 degrees longitude.
Solar systems installed in or near O Fallon can expect to receive 4.98 solar exposure (measured in kWh per square meter per day) for each kW installed. This translates to an annual yield of 1,458.56 kWh* per installed kW, at a dollar value of $144.69/$120.33 (Residential/Commercial) at the Missouri average retail electricity charge.
* Based on 95% inverter inefficiency, 89% weather impact on efficiency, 95% factor of soiling, utility, and module inefficiencies.