The month of May has the highest historical solar radition values in 99643 with an average of 4.77 kWh/m2/day. [More]
Solar Panels in 99643
Solar panels in 99643 that will produce the maximum solar energy output. [More]
Sunrise & Sunset in 99643
The total length of the day in 99643 (Old Harbor, AK) today (March 28, 2024) will be 12 hours and 55 minutes. [More]
Solar Energy in 99643 (Old Harbor, AK)
Solar Energy Data for 99643
See the chart below to see how different types of solar panel installations compare in 99643.
Historical solar power output data for Old Harbor is not currently available.
Solar Energy Analysis for 99643
Sorry, it is not possible to complete our solar energy analysis for 99643 at this time.
Please check back later.
Solar Energy Glossary
Global Horizontal Irradiance (GHI)
Global Horizontal Irradiance: The total amount of solar radiation that is received per unit area by a surface that is always positioned in a horizontal manner.
Direct Normal Irradiance (DNI)
Direct Normal Irradiance: The total amount of solar radiation received per unit area by a surface that is always perpendicular to the sun rays that come in a straight line from the direction of the sun at its current position in the sky.
Average Tilt at Latitude (ATaL)
Average Tilt at Latitude: The total amount of solar radiation received per unit area by a surface that is tilted toward the equator at an angle equal to the current latitude. ATaL will often produce the optimum energy output.
Solar Radiation Levels in 99643
Solar Radiation Data in 99643
See the chart below for monthly solar radiation levels in 99643.
* Amounts listed in kWh/m2/day (kilowatt hours per square meter per day)
Solar Radiation Analysis for 99643
The region associated with 99643 has a average annual solar radiation value of 2.78 kilowatt hours per square meter per day (kWh/m2/day). [1]
The month with the highest historical solar radition values in 99643 is May with an average of 4.77 kWh/m2/day, followed by June at 4.21 kWh/m2/day and July at 4.2 kWh/m2/day. [1]
The three months that historically average the lowest average solar radiation levels in 99643 are December with an average of 0.84 kWh/m2/day, followed by January with an average of 1.06 kWh/m2/day and November at 1.34 kWh/m2/day. [1]
Solar Power Comparison: 99643 vs. the U.S.
Solar Power Levels in 99643
The average monthly solar radiation level in 99643, of 2.78 kilowatt hours per square meter per day (kWh/m2/day) is approximately 29% less than the average level of 3.93 kWh/m2/day in a city with historically low levels (WA) and is approximately 58% less than the average level of 6.61 kWh/m2/day in a city with historically high levels (NV). [1]
→ Values listed as 0 (zero) are not available (N/A).
Solar Power: 99643 vs. the U.S.
Below is a month-by-month comparison of how average 99643 solar radiation levels compare to average levels in a city with historcially high levels (NV) and a city with historically low levels (WA). [1]
→ k/m/d = kWh/m2/day = kilowatt hours per square meter per day.
→ Values listed as 0 (zero) are not available (N/A).
We do not have data on solar panel installations in ZIP Code 99643 at the current time.
Solar Power Output in 99643
The Power of Solar in 99643
Monthly AC solar system output averages for 99643. Month-by-month solar power, as ranked by AC output, in 99643. [2]
* Amounts listed in kWhac (kilowatt hours (AC))
Solar Output Analysis for 99643
99643 has a average annual solar AC output value of 3331.36 kilowatt hours (AC). [2]
The month with the highest historical solar power output in 99643 is May with an average of 477.96 kWhac, followed by July at 415.74 kWhac and June at 410.56 kWhac. [2]
The three months that historically average the lowest average solar output levels in 99643 are December with an average of 88.69 kWhac, followed by January with an average of 114.47 kWhac and November at 138.61 kWhac. [2]
The ZIP code 99643 is associated with the city of Old Harbor in Kodiak Island County in Alaska.
99643 Solar Energy & Power
To learn more about solar energy and solar power in 99643, or for more solar-related resources for AK, check out the U.S. Energy Information Administration.
Did you know?
Some tax incentives and rebate programs are designed to spur the use of solar energy. These vary by location.