0 the amount of energy from the sun that reaches the earth --
1 the amount of energy from the sun that reaches the earth --
The output of a solar array is a function of age, temperature, tilt, shading, tracking, and insolation.
This varies by geographic region because the average insolation depends on the average cloudiness and the thickness of atmosphere traversed by the sunlight.
Separate measures such as satellite image analysis or a solar radiation meter (a pyranometer) can be used to estimate total insolation for comparison.
The framework considers only the insolation that falls on building rooftops, not on the ground.
However, at lower insolation levels, say on an overcast day, these mechanisms represent an increasing percentage of the total power being generated.
The chain line indicates insolation.
The site was at the edge of an old logging road, and thus exposed to more severe insolation.
The former are exposed to fluctuations in insolation because of rapidly changing cloud cover and sparse canopy.
