Corydon, Indiana presents a moderately favorable location for year-round solar energy generation, though with significant seasonal variations typical of the Northern Temperate Zone climate.
Seasonal Solar Performance
The solar energy output at this location varies considerably throughout the year. Summer provides the strongest performance at 6.28 kWh per day per kW of installed solar capacity, making it the peak season for solar generation. Spring follows as the second-best season with 5.48 kWh per day per kW, offering nearly comparable performance to summer months. Autumn shows a notable decline to 3.86 kWh per day per kW, while winter represents the most challenging period with only 2.15 kWh per day per kW of production. This dramatic winter reduction means solar panels generate less than half their summer output during the coldest months.Optimal Installation Setup
For fixed solar panel installations at this Corydon location, the ideal angle to tilt panels is 33 degrees facing south to maximize total year-round production. This angle is calculated by analyzing daily solar elevation angles, optimal panel positioning, and weighting these factors using solar irradiance data while accounting for Earth's elliptical orbit.Local Factors Affecting Solar Production
Several environmental and weather factors in southern Indiana can significantly impact solar energy generation:- Frequent cloud cover and overcast skies, particularly during autumn and winter months
- Snow accumulation on panels during winter, blocking sunlight and reducing output
- High humidity levels that can create hazy atmospheric conditions
- Potential for severe weather including thunderstorms and hail
- Tree coverage and vegetation that may create shading issues
Preventative Measures for Better Performance
To maximize solar energy production despite these challenges, several installation strategies can help: Installing panels with adequate tilt (the recommended 33 degrees) helps snow slide off more easily and improves overall drainage. Choosing mounting systems that allow for easy cleaning access enables regular removal of debris, snow, and accumulated grime that can reduce efficiency. Proper site selection away from large trees and buildings minimizes shading throughout the day and across seasons. Using high-quality panels with good low-light performance helps maintain output during cloudy conditions common in Indiana weather. Installing a monitoring system allows for quick identification of performance issues, while selecting panels and equipment rated for severe weather conditions ensures durability against storms and hail that can occur in this region.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 Corydon
Seasonal solar PV output for Latitude: 38.2182, Longitude: -86.1125 (Corydon, 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 Corydon, United States
To maximize your solar PV system's energy output in Corydon, United States (Lat/Long 38.2182, -86.1125) 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 Corydon, 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 Corydon, 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 |
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 Corydon, 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 Corydon, 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 Corydon, United States
Topography Around Corydon, Indiana
Corydon sits in the rolling hills of southern Indiana, positioned within the scenic landscape of Harrison County. The terrain around this historic town is characterized by gentle undulations and moderate elevation changes typical of the Midwest's transition zone between flat plains and more pronounced hill country. The area features a mix of agricultural land, forested hillsides, and river valleys that create a diverse topographical mosaic.
The region's elevation generally ranges from approximately 400 to 800 feet above sea level, with Corydon itself positioned at a moderate elevation on relatively stable ground. The landscape slopes gradually toward the Ohio River to the south, creating natural drainage patterns through small creeks and tributaries. These waterways have carved modest valleys through the terrain over millennia, resulting in the characteristic rolling topography that defines much of southern Indiana.
Forests cover many of the steeper slopes and hilltops, while agricultural activities typically occupy the flatter valley floors and gentler hillsides. The soil composition varies from rich bottomland near water sources to thinner, rockier soil on elevated areas. This variation in soil quality and slope has historically influenced land use patterns throughout the region.
Optimal Areas for Large-Scale Solar Development
The most suitable locations for large-scale solar photovoltaic installations around Corydon would be the relatively flat to gently sloping agricultural areas that dot the landscape between the steeper forested hills. These areas offer the necessary combination of accessible terrain, minimal shading concerns, and existing cleared land that reduces development costs and environmental impact.
South-facing slopes with gradual inclines present particularly attractive opportunities for solar development, as they naturally optimize panel orientation while maintaining reasonable construction and maintenance access. The agricultural fields scattered throughout Harrison County and neighboring areas provide numerous potential sites where solar installations could coexist with or replace traditional farming activities.
Areas to the north and west of Corydon tend to offer more consistently gentle terrain compared to the hillier regions closer to the Ohio River. These locations benefit from relatively stable ground conditions and fewer topographical obstacles that could complicate large-scale construction projects. The existing agricultural infrastructure in these areas, including established road networks and electrical grid connections, further enhances their suitability for solar development.
Valley floors along the various creeks and streams in the region also present viable options for solar installations, provided they are situated above flood-prone areas. These locations often feature the flattest available terrain and may offer opportunities for innovative approaches such as agrivoltaics, where solar panels and agricultural activities share the same land space.
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: Saturday 19th of July 2025
Last Updated: Thursday 7th of August 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
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.




