Stamford Solar Power Information & Peak Sun Hours

Solar Green Energy Summary for Stamford, Connecticut

Lattitude: 41.1035

Sunlight

Fixed Tilt Sunlight Hours: 4.4 hours per day

1-Axis Tilt Sunlight Hours: 5.5 hours per day

2-Axis Tilt Sunlight Hours: 5.7 hours per day

Peak sun hours is arguably the most important number to consider before installing your solar panels. Unlike total sun hours, peak sun hours are calculated by looking at the amount of sunlight hours in a 24 hour period that is strong enough to be absorb by a solar panel. One way to imagine peak sun hours is to think about a solar powered calculator you owned in school. If you covered the solar panel with your finger, or tried to use the calculator in the dark, the calculator would not work. As you slowly exposed the calculator to light the calculator would eventually turn on and be usable. The same is true with peak sun hours; these are the hours that your solar panels receive enough sunlight to work. Looking at the average peak sunlight hours of 4.4 per day can help you determine the amount of solar panels you need to install to power your home or business in Stamford, Connecticut.

If you open the newspaper in the morning or watch the weather channel on the news you can get an accurate prediction of sunrise and sunset each day for Stamford. However, still knowing that the latitude of Stamford is 41.1 can be a helpful number for your solar panel setup and planning. The closer your latitude is to zero the closer you are to the equator. At the equator you find the most consistent total sunlight hours throughout any given day of the year. As your latitude increases you can see larger discrepancies of daily sunlight hours during the year. For example, having very long summer days and very short and dark winter days

A tracking mount will increase the average peak sun hours for a solar power system. Think about a panel that is tracking the sun in the sky vs a panel that is fixed and not moving: you will see a higher efficiency ratio of productions. A 1-axis mount will track the sun from East to West from sunrise to sunset and move on a single axis of rotation. A 2-axis mount will track the Sun from East to West the same as a 1-axis mount would, but it will also track the angle of the sun in the sky as it slowly varies season to season. A 2-axis mount is more necessary in high latitude regions where the angle of the sun in the sky changes dramatically between each equinox.

Another reason to consider average peak sun hours is because weather can dramatically affect the day-to-day output of solar panels. It goes without saying that a dark stormy day will produce less output than a clear sunny day. Looking at a yearly average helps account for these daily variables.

Since we know the latitude of Stamford we can take the average amount of total sunlight hours and estimate that with a fixed solar panel there would be an average of 4.4 peak sun hours per day. 5.5 hours per day with a 1-axis tracking mount that tracks the sun from sunrise to sunset, and 5.7 hours with a 2-axis tracking mount that tracks the sun everywhere in the sky.


Solar Businesses in Stamford, Connecticut

1177 High Ridge Rd
Stamford, CT 06905
(800) 786-4028
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498 Den Rd, Bldg 2
Stamford, CT 06903
(203) 914-1100
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