Solar Energy Potential in Flatwoods, Kentucky
Flatwoods, Kentucky, located in the United States at the coordinates 38.5226, -82.7238 in the Northern Temperate Zone, offers varying potential for solar PV energy generation throughout the year. The location experiences significant seasonal differences in solar energy production that are worth understanding for anyone considering solar installation. The seasonal output per kilowatt of installed solar capacity shows a clear pattern. Summer is the most productive season, generating an average of 6.20 kWh per day for each kilowatt installed. Spring follows as the second most productive season with 5.42 kWh/day. Autumn produces a moderate 3.79 kWh/day, while winter drops significantly to only 1.98 kWh/day.Seasonal Variations and Ideal Production Periods
The substantial difference between summer and winter production (more than three times higher in summer) indicates that Flatwoods experiences a pronounced seasonal cycle for solar energy potential. This means that the optimal periods for solar generation are the summer months, followed by spring. These two seasons combined would provide the bulk of annual solar energy production at this location. For a fixed panel installation in Flatwoods, the ideal angle to tilt panels for maximizing total year-round production is 33 degrees facing South. This specific tilt optimizes the annual solar collection based on Flatwoods' latitude and seasonal sun positions.Environmental and Weather Considerations
Several environmental factors could potentially impact solar production in Flatwoods:- The region experiences significant snowfall in winter, which can cover panels and reduce production during the already low-yield winter months.
- Flatwoods is located in an area that can experience high humidity and cloudy conditions, particularly during parts of spring and fall.
- The area is moderately forested, which could create shading issues depending on the specific installation site.
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 Flatwoods
Seasonal solar PV output for Latitude: 38.5226, Longitude: -82.7238 (Flatwoods, 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 33° South in Flatwoods, United States
To maximize your solar PV system's energy output in Flatwoods, United States (Lat/Long 38.5226, -82.7238) throughout the year, you should tilt your panels at an angle of 33° 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 Flatwoods, 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 Flatwoods, United States. As mentioned earlier, for fixed-panel solar PV installations, it is optimal to maintain a 33° South tilt angle throughout the year.
| Overall Best Summer Angle | Overall Best Autumn Angle | Overall Best Winter Angle | Overall Best Spring Angle |
|---|---|---|---|
| 22° South in Summer | 43° South in Autumn | 54° South in Winter | 31° 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 Flatwoods, 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 Flatwoods, 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 Flatwoods, United States
The topography around Flatwoods, located in Greenup County, Kentucky, is characterized by rolling hills and valleys typical of the Appalachian Plateau region. Situated near the Ohio River, Flatwoods itself sits at an elevation of approximately 680 feet (207 meters) above sea level. Despite its name suggesting level terrain, the area features a mix of modest hills, shallow valleys, and some flatter areas that were historically more conducive to settlement and development.
The landscape surrounding Flatwoods is part of the western foothills of the Appalachian Mountains, representing a transition zone between the more rugged eastern mountains and the flatter lands to the west. The terrain gradually rises as one moves eastward into more mountainous regions of Kentucky and West Virginia. Numerous small streams and creeks cut through the area, creating natural drainage patterns that have shaped the local topography over millennia.
Potential Areas for Solar Development
For large-scale solar photovoltaic installations near Flatwoods, several factors related to the topography must be considered. The most suitable areas would include:
South-facing slopes provide optimal solar exposure throughout the day. The gentle hills to the south and southwest of Flatwoods offer several potential locations where the natural topography would enhance solar collection efficiency. These areas benefit from reduced morning and evening shadowing that can affect energy production.
Some of the more level plateaus and broader valley floors within a 15-mile radius of Flatwoods present opportunities for larger, contiguous solar installations. In particular, the somewhat flatter terrain extending west toward Ashland and south toward Worthington contains several promising sites where the land is sufficiently level to minimize grading costs while still providing good solar exposure.
The reclaimed mine lands in the broader region, though not immediately adjacent to Flatwoods, offer interesting possibilities for solar development. These areas often feature artificially leveled terrain that can accommodate large installations with minimal additional site preparation. Several such locations exist within Lawrence County to the southwest and in neighboring West Virginia counties.
Areas to avoid would include the steeper north-facing slopes throughout the region, narrow valleys that receive limited direct sunlight due to shadowing from surrounding hills, and floodplain areas near the Ohio River and its tributaries that may be subject to periodic inundation.
The topography also influences local microclimate conditions, with some of the broader, more open areas south of Flatwoods experiencing less fog and atmospheric moisture than locations closer to the Ohio River. These subtle variations can make certain sites marginally more productive for solar energy generation over the long term.
Overall, while the Appalachian region is not traditionally considered prime solar territory compared to the American Southwest, the varied topography around Flatwoods does offer several promising locations where the natural landscape features could be leveraged to support efficient solar PV installations.
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!
Citation Guide
Article Details for Citation
Author: Aaron Robinson
Publisher: profileSOLAR.com
First Published: Thursday 24th of April 2025
Last Updated: Monday 8th of September 2025
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Compare this location to others worldwide for solar PV potential
The solar PV analyses available on our website, including this one, are offered as a free service to the global community. Our aim is to provide education and aid informed decision-making regarding solar PV installations.
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.
Helping you assess viability of solar PV for your site
Calculate Your Optimal Solar Panel Tilt Angle: A Comprehensive Guide
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