Larkspur Solar Power Information & Peak Sun Hours
Solar Green Energy Summary for Larkspur, Colorado
Lattitude: 39.2318
Sunlight
Fixed Tilt Sunlight Hours: 5.8 hours per day
1-Axis Tilt Sunlight Hours: 7.7 hours per day
2-Axis Tilt Sunlight Hours: 7.9 hours per day
Peak sun hours are a vital measurement to understand when considering the installation of solar panels. Peak sun hours are not the same as total sunlight hours because not every hour of sunlight during the day has enough strength and solar insolation to qualify as a peak sun hour. The rule of thumb is that a peak sun hour is when the intensity of the sun that is hitting your solar panel is providing at least 1,000 watts per square meter. This is an arbitrary number, but it is a number where most solar panels will be producing an efficient output and not underperforming due to sunshine that is not strong enough or direct enough.
Knowing the latitude of Larkspur will help estimate average peak sun hours for your area. The latitude is used to accurately estimate the time of sunrise and sunset, thus giving you the total hours of daylight each day. Once you know the total hours of daylight, you can estimate the amount of peak sun hours based on a number of variables such as weather, time of year, the angle of the solar panel.
You will notice that the average peak sun hours for Larkspur change based on the type of panel being used. The reason for this is quite simple. A fixed panel does exactly what it sounds like, remains fixed in one position at all times. A 1-axis and 2-axis panels have axis that allow them to rotate. The 1-axis rotates with the sun's daily east to west movement while a 2-axis also adjusts for seasonal changes.
Weather is one of the major culprits that will cause inconsistent total peak sun hours for any given day. The sunrise and sunset will always be predictable every day, but the weather is hard to predict and cloud coverage can greatly diminish the efficiency of a solar power system on any given day. On the bright side, a location that is known to have cloudy weather a majority of the year could have unexpectedly more sunny days, so it can go both ways.
Since we know the latitude of Larkspur we can take the average amount of total sunlight hours and estimate that with a fixed solar panel there would be an average of 5.8 peak sun hours per day. 7.7 hours per day with a 1-axis tracking mount that tracks the sun from sunrise to sunset, and 7.9 hours with a 2-axis tracking mount that tracks the sun everywhere in the sky.