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Flag of United StatesSolar PV Analysis of Shepherdsville, United States

Graph of hourly avg kWh electricity output per kW of Solar PV installed in Shepherdsville, United States (by season)

Solar Energy Potential in Shepherdsville, Kentucky

Shepherdsville, Kentucky, located in the Northern Temperate Zone, presents a moderate opportunity for solar energy generation through photovoltaic (PV) systems. The location experiences significant seasonal variations in solar energy production throughout the year.

Seasonal Solar Production

Solar panels in Shepherdsville generate varying amounts of electricity depending on the season:
  • Summer: 6.22 kWh per day per kW installed
  • Spring: 5.52 kWh per day per kW installed
  • Autumn: 3.85 kWh per day per kW installed
  • Winter: 2.15 kWh per day per kW installed
This pattern shows that summer and spring are the most productive seasons, with nearly three times more energy generation in summer compared to winter. The significant drop in winter production is typical for locations in the Northern Temperate Zone.

Optimal Panel Installation

For fixed solar panel installations in Shepherdsville, the ideal tilt angle to maximize year-round production is 33 degrees facing South. This angle optimizes the capture of solar radiation throughout the year, balancing the lower winter sun path with the higher summer sun position.

Environmental and Weather Considerations

Several factors in Shepherdsville may affect solar production. Kentucky experiences moderate precipitation throughout the year, including occasional snow in winter that can temporarily cover panels and reduce output. The region also experiences some cloudy days, particularly in winter months. Tree coverage could be an issue in some parts of Shepherdsville, as Kentucky has substantial forested areas. Homeowners should ensure panels are installed in locations with minimal shading from trees or structures, particularly during peak production hours.

Preventative Measures

To maximize solar production in Shepherdsville, consider these preventative measures: Install panels with anti-soiling coatings to reduce dust and pollen buildup, which is common in Kentucky's moderate humidity environment. Consider snow-shedding mounting systems that facilitate natural snow removal through gravity. Regular maintenance is important, including cleaning panels several times per year, especially after pollen season in spring. Trimming nearby trees that could cast shadows as they grow will help maintain optimal production levels. While Shepherdsville doesn't offer the ideal solar conditions found in the southwestern United States, properly installed and maintained systems can still provide significant energy production, especially from late spring through early fall.

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 Shepherdsville

Seasonal solar PV output for Latitude: 38.0076, Longitude: -85.6921 (Shepherdsville, 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:

Summer
Average 6.22kWh/day in Summer.
Autumn
Average 3.85kWh/day in Autumn.
Winter
Average 2.15kWh/day in Winter.
Spring
Average 5.52kWh/day in Spring.

 

Ideally tilt fixed solar panels 33° South in Shepherdsville, United States

To maximize your solar PV system's energy output in Shepherdsville, United States (Lat/Long 38.0076, -85.6921) 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.

The sun
At Latitude: 38.0076, Longitude: -85.6921, the ideal angle to tilt panels is 33° South

Seasonally adjusted solar panel tilt angles for Shepherdsville, 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 Shepherdsville, 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 42° South in Autumn 53° South in Winter 31° South in Spring

Assuming you can modify the tilt angle of your solar PV panels throughout the year, you can optimize your solar generation in Shepherdsville, United States as follows: In Summer, set the angle of your panels to 22° facing South. In Autumn, tilt panels to 42° facing South for maximum generation. During Winter, adjust your solar panels to a 53° angle towards the South for optimal energy production. Lastly, in Spring, position your panels at a 31° angle facing South to capture the most solar energy in Shepherdsville, United States.

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 Shepherdsville, 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 Shepherdsville, United States.

Our calculation method

  1. Solar Position:
    We determine the Sun's position on the Winter solstice using the location's latitude and solar declination.
  2. Shadow Projection:
    We calculate the shadow length cast by panels using trigonometry, considering panel tilt and the Sun's elevation angle.
  3. 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.






Please enter information above to calculate panel spacing.

Topography for solar PV around Shepherdsville, United States

Shepherdsville, Kentucky is nestled in Bullitt County, approximately 20 miles south of Louisville in the north-central region of Kentucky. The topography around Shepherdsville presents a varied landscape characterized by gently rolling hills, river valleys, and modest elevations that transition between the Bluegrass region and the Knobs area of Kentucky. The city itself sits in the Salt River Basin, with the Salt River flowing through the community. This waterway has played a significant role in shaping the local geography, carving out valleys and floodplains that create relatively flat areas interspersed among the surrounding hills. The elevation in Shepherdsville averages around 450 feet above sea level, though the surrounding terrain rises considerably in certain directions.

Surrounding Landscape Features

To the east of Shepherdsville, the terrain becomes more pronounced as it transitions into the Knobs region, a belt of isolated hills and small mountains that form a ring around the Bluegrass region. These knobs can reach elevations of 900-1,200 feet, creating a more rugged landscape with steeper slopes. The Bernheim Forest, located just south of Shepherdsville, exemplifies this terrain with its varied topography of hills, valleys, and woodlands. To the west and north, the landscape gradually flattens as it approaches the Ohio River Valley. This creates more open spaces with gentler slopes and broader plateaus. The western portions of Bullitt County feature more consistent elevations with fewer dramatic changes in the terrain.

Potential Areas for Solar Development

For large-scale solar photovoltaic development, several areas near Shepherdsville offer promising conditions based on topographical considerations. The most suitable locations would be: The western portions of Bullitt County feature more level terrain with fewer steep slopes, making these areas potentially easier to develop for large-scale solar installations. The flatter topography reduces construction challenges and costs associated with grading and site preparation. Former agricultural lands or cleared areas along the I-65 corridor, particularly in the less developed sections south and southwest of Shepherdsville, offer relatively flat terrain with good solar exposure. These areas typically have fewer obstructions from hills or dense forests that might cast shadows. Some of the broader ridge tops and plateaus in the eastern parts of the county, where sufficient flat space exists, could accommodate solar arrays. While the Knobs region is generally more challenging for development due to its varied elevation, certain plateau areas present viable options if they offer adequate space and appropriate orientation. Areas near existing electrical infrastructure, such as the transmission corridors that run through the region, would reduce interconnection costs while still taking advantage of suitable topography. Several relatively flat areas exist near these corridors, particularly in the western sections of the county. The topographical challenges for solar development in this region include the numerous streams and creek beds that create drainage patterns throughout the area, potentially limiting the size of continuous flat areas. Additionally, the more pronounced hills to the east create some limitations due to slope considerations and potential shading effects. From a purely topographical perspective, the most promising large-scale solar PV sites would be found in the western and southwestern portions of Bullitt County, where gentler slopes, broader plateaus, and more consistent elevations create favorable conditions for solar array installation and maintenance.

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

Article: Solar PV Analysis of Shepherdsville, United States
Author: Aaron Robinson
Publisher: profileSOLAR.com
First Published: Tuesday 22nd of April 2025
Last Updated: Wednesday 3rd 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.

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