Flag of United States

Flag of United StatesSolar PV Analysis of Fairmount, United States

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

Fairmount, Indiana presents a moderately suitable location for year-round solar energy generation, though with significant seasonal variations typical of the Northern Temperate Zone. The location experiences substantial differences in solar production capacity throughout the year, making it important to understand both the opportunities and challenges for solar installations.

Seasonal Solar Production Patterns

Summer represents the peak solar generation period at this location, with panels producing 6.36 kWh per day per kW of installed capacity. This high output makes summer the most productive season for solar energy generation. Spring follows as the second-best season with 5.47 kWh per day per kW, offering strong solar production as daylight hours increase and weather conditions improve. Autumn shows a notable decline in solar output at 3.55 kWh per day per kW of installed solar, reflecting the transition toward winter conditions. Winter presents the most challenging period for solar generation, with output dropping to just 2.24 kWh per day per kW of installed capacity - less than half the spring production and roughly one-third of summer output.

Optimal Panel Configuration

For fixed panel installations at Fairmount, Indiana, the ideal tilt angle is 35 degrees facing south to maximize total year-round solar production. This angle has been calculated to optimize solar collection across all seasons by accounting for the sun's varying elevation throughout the year and weighting these angles based on the actual solar energy potential at this latitude.

Environmental and Weather Challenges

Several factors at this Indiana location can significantly impact solar energy production and require careful consideration during installation planning. Snow accumulation during winter months poses a major concern for solar installations in this region. Heavy snow loads can completely block solar panels, reducing energy production to zero until the snow melts or is removed. Additionally, the weight of accumulated snow can stress mounting systems and potentially damage panels if not properly designed for local snow loads. Ice formation presents another winter challenge, as ice can adhere strongly to panel surfaces and prove difficult to remove safely. Ice buildup not only blocks sunlight but can also create safety hazards during maintenance activities. The region experiences frequent cloud cover and overcast conditions, particularly during autumn and winter months, which directly correlates with the reduced solar output during these seasons. Midwest weather patterns often bring extended periods of cloudy skies that can significantly reduce solar energy generation. Severe weather events common to Indiana, including thunderstorms with high winds and hail, can potentially damage solar installations. These weather systems are most frequent during spring and summer months, ironically coinciding with peak solar production periods.

Preventative Installation Measures

Several strategies can help maximize solar energy production despite these environmental challenges:
  • Install panels at the optimal 35-degree tilt angle, which naturally helps snow slide off more easily than flatter installations
  • Use mounting systems rated for local snow loads and wind speeds to ensure structural integrity
  • Position panels to minimize shading from nearby trees or structures, particularly important during lower-angle winter sun conditions
  • Select panels and mounting hardware rated for hail impact and high wind speeds typical of Midwest severe weather
  • Consider installing panels with anti-reflective coatings and smooth surfaces that facilitate snow and ice shedding
Regular maintenance becomes particularly important at this location, including safe snow removal when necessary and keeping panels clean of debris that might accumulate during storms. While winter production remains the most challenging aspect of solar generation in Fairmount, Indiana, proper system design and installation can help ensure optimal performance during the more productive spring and summer months while minimizing weather-related production losses throughout the year.

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 Fairmount

Seasonal solar PV output for Latitude: 40.4153, Longitude: -85.6505 (Fairmount, 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 6.36kWh/day in Summer.
Autumn
Average 3.55kWh/day in Autumn.
Winter
Average 2.24kWh/day in Winter.
Spring
Average 5.47kWh/day in Spring.

 

Ideally tilt fixed solar panels 35° South in Fairmount, United States

To maximize your solar PV system's energy output in Fairmount, United States (Lat/Long 40.4153, -85.6505) throughout the year, you should tilt your panels at an angle of 35° 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: 40.4153, Longitude: -85.6505, the ideal angle to tilt panels is 35° South

Seasonally adjusted solar panel tilt angles for Fairmount, 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 Fairmount, United States. As mentioned earlier, for fixed-panel solar PV installations, it is optimal to maintain a 35° South tilt angle throughout the year.

Overall Best Summer Angle Overall Best Autumn Angle Overall Best Winter Angle Overall Best Spring Angle
24° South in Summer 44° South in Autumn 54° South in Winter 33° 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 Fairmount, United States as follows: In Summer, set the angle of your panels to 24° facing South. In Autumn, tilt panels to 44° facing South for maximum generation. During Winter, adjust your solar panels to a 54° angle towards the South for optimal energy production. Lastly, in Spring, position your panels at a 33° angle facing South to capture the most solar energy in Fairmount, 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 Fairmount, 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 Fairmount, 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 Fairmount, United States

Topography Around Fairmount, United States

The landscape surrounding Fairmount in east-central Indiana is characterized by relatively flat to gently rolling terrain typical of the Midwest agricultural region. This area sits within the Till Plains physiographic region, where ancient glacial activity created a predominantly level topography with subtle undulations. The elevation changes are modest, with most variations occurring gradually across the landscape rather than through steep slopes or dramatic elevation shifts. The region features expansive agricultural fields that stretch across the horizon, broken occasionally by small woodlots, farmsteads, and rural roads. Stream valleys cut shallow channels through the terrain, creating the most noticeable topographic relief in the area. These waterways, including tributaries of the Mississinewa River system, have carved gentle valleys that are typically only 20 to 50 feet below the surrounding uplands. The soil composition consists primarily of fertile glacial till and outwash deposits, supporting the area's strong agricultural economy. Much of the land has been cleared for farming over the past century and a half, leaving relatively few forested areas compared to the original landscape. The remaining woodlands are typically found along stream corridors, around farmsteads, or in small scattered patches throughout the agricultural matrix.

Areas Most Suitable for Large-Scale Solar Development

The extensive agricultural fields south and west of Fairmount present excellent opportunities for large-scale solar photovoltaic installations. These areas offer several key advantages including minimal topographic obstacles, existing cleared land, and generally good accessibility via the rural road network. The flat to gently sloping terrain requires minimal site preparation and grading, which helps reduce development costs significantly. Large contiguous parcels of farmland in the southwestern portion of the area would be particularly well-suited for utility-scale solar development. These locations benefit from their distance from residential areas while maintaining reasonable proximity to existing electrical infrastructure. The gentle southward-facing slopes that occur naturally in parts of this agricultural landscape provide optimal orientation for solar panel arrays. Areas immediately north and east of Fairmount also show strong potential, particularly where large agricultural fields extend uninterrupted across substantial acreage. The relatively sparse tree cover in these farming areas means minimal shading concerns, while the level terrain allows for efficient panel layout and maintenance access. Former agricultural land that may be transitioning out of active farming could represent especially attractive development opportunities. The stream valleys and their associated floodplains would generally be less suitable for solar development due to potential flooding concerns and environmental sensitivities. Similarly, the scattered woodlots throughout the region would require clearing and might face regulatory challenges, making them less attractive than the readily available agricultural areas that dominate the local landscape.

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 Fairmount, United States
Author: Aaron Robinson
Publisher: profileSOLAR.com
First Published: Tuesday 1st of July 2025
Last Updated: Wednesday 6th of August 2025

Tell Us About Your Work

We love seeing how our research helps others! If you've cited this article in your work, we'd be delighted to hear about it. Drop us a line via our Contact Us page or on X, to share where you've used our information - we may feature a link to your work on our site. This helps create a network of valuable resources for others in the solar energy community and helps us understand how our research is contributing to the field. Plus, we occasionally highlight exceptional works that reference our research on our social media channels.

Feeling generous?

"Just like the sun juicing up solar PV panels, coffee is our liquid sunshine that fuels our research and development shenanigans!" 😊
Buy me a coffee - Thanks for your support!

Share this with your friends!



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.

Worldwide Solar PV Analysis of 20,000 Locations

Helping you assess viability of solar PV for your site

profileSOLAR on YouTube

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.

Calculate Your Optimal Solar Panel Tilt Angle