Maine Sunlight Hours & Renewable Energy Information
Quick Green Energy Summary for Maine
State Sunlight Rank: 28/50
Average Annual Sunlight Hours: 2500 hours
Clear Days: 101 days per year
Summer Peak Sun Hours: 5.2 hours per day
Winter Peak Sun Hours: 3.56 hours per day
Average Peak Sun Hours: 4.51 hours per day
State Wind Rank : 22/50
Average Annual Wind Speed: 9.51 miles per hour
It is important to remember, if you are looking to install solar panels then you have to understand that not every hour of
sunlight will be converted at the same efficiency ratio. Certain factors such as time of year, the angle of both the sun
and panels, varied cloud coverage, tracking mounts, or if you are using the system year round are just a few of the factors
that could affect efficiency ratios.
Because of this you should look at average of peak hours of sunlight per day, which are the most ideal sunlight hours of solar insolation.
Maine receives an average of 4.51 peak sun hours a day on a fixed solar panel.