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Is my region's irradiation level low, moderate or high?
The following scale is a basic guide for irradiation levels. Although a value of 5 is not considered very high during the summer months, as an average annual value this is very high. You will see that in central Australia, which is a hot, sunny place, the annual average irradiation is 5.89.
You may compare your location to the following two extreme locations.
Average annual irradiation levels:
Central Australia = 5.89 kWh/m2/day - Very High
Helsinki, Finland = 2.41 kWh/m2/day - Very Low
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