Kearneysville, West Virginia shows moderate potential for year-round solar energy generation, though with significant seasonal variations typical of its Northern Temperate Zone location. The solar output data reveals distinct patterns that make certain times of year much more productive than others.
Seasonal Solar Performance
Summer represents the peak solar generation period at this location, producing 6.29 kWh per day per kW of installed capacity. This high output reflects the combination of long daylight hours and favorable sun angles during the warmest months. Spring follows as the second-best season with 5.48 kWh per day per kW, making the late spring through early summer period ideal for maximum solar energy harvest. Autumn sees a notable decline to 3.64 kWh per day per kW as daylight hours shorten and sun angles become less favorable. Winter presents the most challenging conditions, dropping to just 2.24 kWh per day per kW - less than half the summer production. This dramatic seasonal swing means solar systems in Kearneysville must be sized appropriately to account for winter's reduced output.Optimal Panel Configuration
For fixed panel installations at this location, the ideal tilt angle is 34 degrees facing south to maximize total year-round production. This angle represents the optimal compromise between capturing high summer sun and lower winter sun angles throughout the annual cycle.Local Environmental Challenges
Several environmental and weather factors in West Virginia can impact solar production at this location. Snow accumulation during winter months can temporarily block panels, though the steep 34-degree tilt angle helps with natural snow shedding. The region experiences frequent cloud cover and precipitation, particularly during winter and spring months, which can reduce solar irradiance. West Virginia's mountainous terrain may create localized shading issues depending on the specific installation site and surrounding topography. Additionally, the area can experience severe weather events including thunderstorms, high winds, and occasional ice storms that could affect system performance or cause damage.Preventative Installation Measures
To maximize energy production despite these challenges, several installation strategies prove beneficial:- Mount panels at the optimal 34-degree south-facing angle to promote snow shedding and maximize annual sun exposure
- Ensure adequate spacing between panel rows to minimize shading, especially important given the lower winter sun angles
- Use robust mounting systems rated for high wind loads and ice accumulation typical of the region
- Install panels with anti-reflective coatings and consider microinverters or power optimizers to minimize losses from partial shading
- Conduct thorough site surveys to identify and mitigate potential shading from trees, buildings, or terrain features
Note: The Northern Temperate Zone extends from 35° latitude North up to 66.5° latitude.
So far, we have conducted calculations to evaluate the solar photovoltaic (PV) potential in 4253 locations across the United States. This analysis provides insights into each city/location's potential for harnessing solar energy through PV installations.
Link: Solar PV potential in the United States by location
Solar output per kW of installed solar PV by season in Kearneysville
Seasonal solar PV output for Latitude: 39.3882, Longitude: -77.8855 (Kearneysville, United States), based on our analysis of 8760 hourly intervals of solar and meteorological data (one whole year) retrieved for that set of coordinates/location from NASA POWER (The Prediction of Worldwide Energy Resources) API:
 
Ideally tilt fixed solar panels 34° South in Kearneysville, United States
To maximize your solar PV system's energy output in Kearneysville, United States (Lat/Long 39.3882, -77.8855) throughout the year, you should tilt your panels at an angle of 34° South for fixed panel installations.
As the Earth revolves around the Sun each year, the maximum angle of elevation of the Sun varies by +/- 23.45 degrees from its equinox elevation angle for a particular latitude. Finding the exact optimal angle to maximise solar PV production throughout the year can be challenging, but with careful consideration of historical solar energy and meteorological data for a certain location, it can be done precisely.
We use our own calculation, which incorporates NASA solar and meteorological data for the exact Lat/Long coordinates, to determine the ideal tilt angle of a solar panel that will yield maximum annual solar output. We calculate the optimal angle for each day of the year, taking into account its contribution to the yearly total PV potential at that specific location.
Seasonally adjusted solar panel tilt angles for Kearneysville, United States
If you can adjust the tilt angle of your solar PV panels, please refer to the seasonal tilt angles below for optimal solar energy production in Kearneysville, United States. As mentioned earlier, for fixed-panel solar PV installations, it is optimal to maintain a 34° South tilt angle throughout the year.
| Overall Best Summer Angle | Overall Best Autumn Angle | Overall Best Winter Angle | Overall Best Spring Angle |
|---|---|---|---|
| 23° South in Summer | 44° South in Autumn | 54° South in Winter | 32° South in Spring |
Our recommendations take into account more than just latitude and Earth's position in its elliptical orbit around the Sun. We also incorporate historical solar and meteorological data from NASA's Prediction of Worldwide Energy Resources (POWER) API to assign a weight to each ideal angle for each day based on its historical contribution to overall solar PV potential during a specific season.
This approach allows us to provide much more accurate recommendations than relying solely on latitude, as it considers unique weather conditions in different locations sharing the same latitude worldwide.
Calculate solar panel row spacing in Kearneysville, United States
We've added a feature to calculate minimum solar panel row spacing by location. Enter your panel size and orientation below to get the minimum spacing in Kearneysville, United States.
Our calculation method
- Solar Position:
We determine the Sun's position on the Winter solstice using the location's latitude and solar declination. - Shadow Projection:
We calculate the shadow length cast by panels using trigonometry, considering panel tilt and the Sun's elevation angle. - Minimum Spacing:
We add the shadow length to the horizontal space occupied by tilted panels.
This approach ensures maximum space efficiency while avoiding shading during critical times, as the Winter solstice represents the worst-case scenario for shadow length.
Topography for solar PV around Kearneysville, United States
Topographical Features Around Kearneysville
The topography surrounding Kearneysville, West Virginia, is characterized by gently rolling hills and moderate elevation changes typical of the eastern panhandle region. This area sits within the Great Appalachian Valley, positioned between the Blue Ridge Mountains to the east and the Appalachian Mountains proper to the west. The terrain features a mix of agricultural valleys, wooded hillsides, and open meadowlands with elevations ranging from approximately 400 to 800 feet above sea level. The landscape consists primarily of undulating farmland interspersed with patches of deciduous forest. Many areas have been cleared for agricultural use over the centuries, creating expansive open spaces with relatively gentle slopes. The region's geology includes limestone bedrock in many areas, which has contributed to the formation of fertile soils and relatively stable ground conditions. Streams and small waterways wind through the valleys, creating natural drainage patterns that have shaped the local topography. The Shenandoah River flows to the south of the area, while smaller tributaries create minor valley systems throughout the region. These water features generally follow east-west trending valleys that are characteristic of the broader Appalachian Valley system.Optimal Areas for Large-Scale Solar Development
The most suitable locations for large-scale solar photovoltaic installations around Kearneysville would be the expansive agricultural fields and cleared meadowlands that occupy the valley floors and gentle hillsides. These areas typically offer several key advantages including minimal tree cover, relatively flat to gently sloping terrain, and existing access via farm roads and rural highways. South-facing slopes with gradients between 0 and 15 degrees would be particularly well-suited for solar development, as they provide optimal orientation while remaining manageable for construction and maintenance activities. Many of the agricultural areas southeast and southwest of Kearneysville feature these ideal characteristics, with large contiguous parcels of open land that could accommodate substantial solar arrays. The former agricultural lands that have been converted to pasture or left fallow also present excellent opportunities, particularly those located within a few miles of existing electrical transmission infrastructure. Areas with good road access along routes such as State Route 9 and nearby county roads would be especially attractive for development due to reduced infrastructure costs. Ridge tops and elevated plateaus in the region, while offering good exposure, may present challenges due to increased wind exposure and potentially more complex terrain. However, some of the broader, flatter ridge areas could still be viable with proper engineering considerations. The key is identifying locations that balance optimal solar exposure with practical construction and maintenance requirements while maintaining reasonable proximity to electrical grid connection points.United States solar PV Stats as a country
United States ranks 2nd in the world for cumulative solar PV capacity, with 95,209 total MW's of solar PV installed. This means that 3.40% of United States's total energy as a country comes from solar PV (that's 26th in the world). Each year United States is generating 289 Watts from solar PV per capita (United States ranks 15th in the world for solar PV Watts generated per capita). [source]
Are there incentives for businesses to install solar in United States?
Yes, there are several incentives for businesses wanting to install solar energy in the United States. These include federal tax credits, state and local rebates, net metering policies, and renewable energy certificates (RECs). Additionally, many states have enacted legislation that requires utilities to purchase a certain amount of electricity from renewable sources such as solar.
Do you have more up to date information than this on incentives towards solar PV projects in United States? Please reach out to us and help us keep this information current. Thanks!
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Article Details for Citation
Author: Aaron Robinson
Publisher: profileSOLAR.com
First Published: Wednesday 23rd of July 2025
Last Updated: Thursday 7th of August 2025
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Compare this location to others worldwide for solar PV potential
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However, please note that these analyses are general guidance and may not meet specific project requirements. For in-depth, tailored forecasts and analysis crucial for feasibility studies or when pursuing maximum ROI from your solar projects, feel free to contact us; we offer comprehensive consulting services expressly for this purpose.
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Calculate Your Optimal Solar Panel Tilt Angle: A Comprehensive Guide
Enhance your solar panel's performance with our in-depth guide. Determine the best tilt angle using hard data, debunk common misunderstandings, and gain insight into how your specific location affects solar energy production.




