Based on historical Westby, MT data, solar panels that are tilted towards the equator at an angle equal to the latitude will produce the maximum solar energy output in Westby.[1]
Westby has an average monthly Global Horizontal Irradiance (GHI) of 3.75 kilowatt hours per square meter per day (kWh/m2/day), which is approximately 15% less than the average monthly Direct Normal Irradiance (DNI) of 4.41 kWh/m2/day. [1]
Solar installations in Westby that are always titled at the latitude of Westby (Average Tilt at Latitude or ATaL) average 4.53 kWh/m2/day, or about 21% greater than the average monthly GHI of 3.75 kWh/m2/day and approximately 3% greater than the average monthly DNI of 4.41 kWh/m2/day. [1]
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 Westby
Solar Radiation Data in Westby, MT
See the chart below for monthly solar radiation levels in Westby.
* Amounts listed in kWh/m2/day (kilowatt hours per square meter per day)
Solar Radiation Analysis for Westby, MT
Westby, MT has a average annual solar radiation value of 4.75 kilowatt hours per square meter per day (kWh/m2/day). [1]
The month with the highest historical solar radition values in Westby is July with an average of 6.83 kWh/m2/day, followed by August at 6.53 kWh/m2/day and June at 5.98 kWh/m2/day. [1]
The three months that historically average the lowest average solar radiation levels in Westby (Montana) are December with an average of 2.44 kWh/m2/day, followed by January with an average of 2.84 kWh/m2/day and November at 2.91 kWh/m2/day. [1]
Solar Power Comparison: Westby vs. the U.S.
Solar Power Levels in Westby
The average monthly solar radiation level in Westby, MT, of 4.75 kilowatt hours per square meter per day (kWh/m2/day) is approximately 21% greater than the average level of 3.93 kWh/m2/day in a city with historically low levels (WA) and is approximately 28% 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: Westby vs. the U.S.
Below is a month-by-month comparison of how average Westby 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 currently have data on solar panel installations in the town of Westby, MT at this current time.
Solar Power Output in Westby
The Power of Solar in Westby, MT
Monthly AC solar system output averages for Westby (mt). Month-by-month solar power, as ranked by AC output, in Westby. [2]
* Amounts listed in kWhac (kilowatt hours (AC))
Solar Output Analysis for Westby, MT
Westby (MT) has a average annual solar AC output value of 5508.58 kilowatt hours (AC). [2]
The month with the highest historical solar power output in Westby is July with an average of 634.81 kWhac, followed by August at 607.11 kWhac and May at 570.24 kWhac. [2]
The three months that historically average the lowest average solar output levels in Westby (Montana) are December with an average of 259.05 kWhac, followed by November with an average of 295.64 kWhac and January at 303.63 kWhac. [2]
Cost of Utilities in Westby
Westby Electricity Costs
Sorry, Westby residential electricity prices are currently unavailable.
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Solar Power Poll: Westby
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Westby Natural Gas Costs
Sorry, Montana residential natural gas prices are currently unavailable.
The town of Westby, MT in Sheridan County has an approximate population of 168. [6]
Westby, MT Solar Energy
To learn more about solar energy and solar power Westby, MT, or for more solar-related resources for Westby, visit 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.