Gustavus Solar Power Information & Peak Sun Hours

Solar Green Energy Summary for Gustavus, Alaska

Lattitude: 58.4274

Sunlight

Fixed Tilt Sunlight Hours: 3.9 hours per day

1-Axis Tilt Sunlight Hours: 4.4 hours per day

2-Axis Tilt Sunlight Hours: 4.6 hours per day

The average amount of peak sun hours in a day is a different and more useful number as it relates to solar panels than total sun hours. Total sun hours are exactly what you would expect; the total amount of hours that the sun is out during a 24 hour period. Peak sun hours, on the other hand, are the total number of hours in a day where the sunshine is strong enough to to be absorbed and used by solar panels. Sunlight early in the morning or late at night is often not strong enough to count toward peak sun hours. Because of this, total sun hours will always be less than peak sun hours. Looking at the average peak sun hours in Gustavus throughout the year can help you better estimate the amount of solar panels you will need to power your business or home.

The latitude at the equator of the earth is zero degrees. This is where sunlight strikes the earth most directly. Due to the earth's curved shape, sunlight hits at a various angles depending on location. As latitude increases, the further you are located from the equator and more variance you see in sunlight hours. The latitude of Gustavus is 58.4.

Throughout the day the sun obviously moves throughout the Gustavus sky. The suns position in the sky also changes throughout the year with the seasons. A fixed solar panel does not accommodate for these changes. However, a 1-axis panel rotates and follows the sun’s path during the day. A 2-axis panel both follows the sun’s daily path as well as the seasonal differences

Although weather predicting technology has greatly evolved over time, it is still a rather unpredictable factor that will affect the amount of peak sun hours your solar power system will receive. Cloudy days for example will usually have lower peak sun hours that a clear sunny day. And areas that usually have more average sunny days per year will probably have higher peak sun hours that areas that are often overcast or stormy.

We can use previous years of data to estimate the amount of peak sun hours in Gustavus. A fixed tilt mount for example will receive 3.9 average hours per day. For more efficiency for your system in Gustavus you could use a 1-axis tracking mount and increase your daily peak sun average to 4.4 hours, or even further with a 2-axis panel to get an average of 4.6 hours.


Solar Businesses in Gustavus, Alaska




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