Lakewood Solar Power Information & Peak Sun Hours
Solar Green Energy Summary for Lakewood, Washington
Lattitude: 47.1627
Sunlight
Fixed Tilt Sunlight Hours: 3.5 hours per day
1-Axis Tilt Sunlight Hours: 5 hours per day
2-Axis Tilt Sunlight Hours: 6.9 hours per day
When trying to calculate your solar power needs there are a variety of factors to consider. Panel type and location, electricity needs, number of panels needed etc. One key to figuring out the math is factoring in the average peak sunlight hours in a day. Unlike total sunlight hours, peak sunlight hours are only when the sun is strong enough to power your solar panel. Using this number can help determine your needs to power your home or business in Lakewood, Washington.
Sunlight hits the earth directly at the equator. This is why the equator has a latitude of zero degrees. The latitude of Lakewood is 47.2. Knowing the latitude of Lakewood can help you plan for your solar panel setup, as the larger the latitude the more variance you will see throughout the year for total daily sunlight hours.
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.
Climate in your geographical region is a major factor that will influence average peak sun hours per year. If you live in a region that does not have a lot of completely sunny days, then cloud coverage will greatly influence solar insolation on any given day. Mountains and trees may also contribute to lower solar insolation if they block the sun from your panels at any given point of the day.
We can use previous years of data to estimate the amount of peak sun hours in Lakewood. A fixed tilt mount for example will receive 3.5 average hours per day. For more efficiency for your system in Lakewood you could use a 1-axis tracking mount and increase your daily peak sun average to 5 hours, or even further with a 2-axis panel to get an average of 6.9 hours.