Franklin, Ohio, located in the Northern Temperate Zone at coordinates 39.559°N, -84.3041°W, presents a moderately favorable location for solar energy generation, though with significant seasonal variation that potential solar installers should carefully consider.

Seasonal Solar Production Patterns

The solar energy output at Franklin shows a typical temperate climate pattern with substantial differences between seasons. Summer provides the highest energy generation at 6.21 kWh per day per kW of installed solar capacity, making it the peak production period. Spring follows as the second-best season with 5.48 kWh per day per kW, offering strong solar potential during the March through May timeframe. Autumn production drops to 3.70 kWh per day per kW, representing a moderate energy generation period. Winter presents the most challenging conditions with only 2.12 kWh per day per kW, creating a significant seasonal energy deficit that solar system owners must plan for through battery storage or grid-tied arrangements.

Optimal Installation Configuration

For fixed panel installations at this Franklin location, the ideal tilt angle is 34 degrees facing south to maximize total year-round solar production. This angle calculation accounts for the Earth's elliptical orbit and weights the optimal daily angles by actual solar irradiance potential throughout the year.

Local Environmental and Weather Challenges

Several environmental and weather factors in the Franklin, Ohio region can significantly impact solar energy production:

• Frequent cloud cover and overcast conditions, particularly during autumn and winter months
• Snow accumulation on panels during winter, which can block sunlight completely
• High humidity levels that can reduce solar panel efficiency
• Severe weather events including hail, ice storms, and strong winds
• Tree coverage and vegetation that may create shading issues

Preventative Measures for Enhanced Production

Solar installers in Franklin can implement several strategies to mitigate these local challenges and optimize energy production: Installing panels at the proper 34-degree tilt angle not only maximizes sun exposure but also helps snow slide off more easily during winter months. Adding micro-inverters or power optimizers can minimize the impact when individual panels are shaded or snow-covered, allowing unaffected panels to continue operating at full capacity. Selecting panels with anti-reflective coatings and temperature-resistant materials helps maintain efficiency during Ohio's humid summers. Ensuring adequate spacing between panel rows prevents self-shading and allows for better air circulation to keep panels cooler. Regular maintenance becomes crucial, including trimming nearby vegetation to prevent shading and periodic cleaning to remove accumulated dust, pollen, and debris that can reduce panel efficiency. Installing a monitoring system allows homeowners to quickly identify when panels are underperforming due to snow cover or other obstructions. Proper structural mounting systems designed for Ohio's weather conditions, including wind and snow load ratings, ensure panels remain secure during severe weather events while maintaining optimal positioning for maximum energy capture 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 Franklin, Ohio

Seasonal solar PV output for Latitude: 39.559, Longitude: -84.3041 (Franklin, Ohio, 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 Franklin, Ohio, United States

To maximize your solar PV system's energy output in Franklin, Ohio, United States (Lat/Long 39.559, -84.3041) 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 Franklin, Ohio, 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 Franklin, Ohio, 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 Franklin, Ohio, 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 Franklin, Ohio, 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.

Topography for solar PV around Franklin, Ohio, United States

Topography Around Franklin, Ohio

Franklin sits in southwestern Ohio within the rolling terrain characteristic of the Ohio River valley region. The landscape around this area features gentle hills and relatively modest elevation changes, with the city positioned at approximately 650 feet above sea level. The topography consists primarily of glacially modified terrain that was shaped during the last ice age, creating a series of low ridges and shallow valleys that drain toward the Great Miami River system.

The immediate vicinity of Franklin exhibits a mix of agricultural flatlands and gently sloping hillsides. To the east and northeast, the terrain gradually rises into more pronounced hills that are part of the broader Appalachian foothills region. These areas can reach elevations of 800 to 900 feet, creating modest but noticeable relief across the landscape. Westward toward the Indiana border, the land becomes increasingly flat as it transitions into the Great Plains physiographic region.

The Great Miami River flows roughly north to south through the region, creating a natural corridor of flatter terrain along its floodplain. This river valley, along with its tributaries, has carved out areas of relatively level ground that contrast with the surrounding uplands. The soils in this region are generally fertile and well-drained, having been deposited by glacial activity and subsequent erosion processes.

Optimal Areas for Large-Scale Solar Development

The most suitable locations for large-scale solar photovoltaic installations around Franklin would be the extensive flat to gently rolling agricultural areas that dominate the western and southwestern portions of the region. These areas offer the ideal combination of minimal slope, good accessibility, and large contiguous parcels of land that could accommodate utility-scale solar farms without significant grading or site preparation costs.

The broad river valleys, particularly along the Great Miami River and its major tributaries, present excellent opportunities for solar development. These areas typically feature minimal topographic variation and have existing infrastructure access through roads and utility corridors that follow the valley floors. The relatively open landscape in these valleys also reduces concerns about shading from surrounding terrain features.

South and southwest of Franklin, the terrain becomes increasingly favorable for solar installations as the landscape transitions toward flatter Midwest prairie topography. These areas often feature large agricultural fields with gentle slopes of less than five percent, which are ideal for solar panel installation without requiring extensive earthwork or specialized mounting systems.

Areas to avoid for large-scale solar development would include the steeper hillsides found to the east and northeast of Franklin, where slopes exceed ten to fifteen percent. These locations would require significant grading and potentially face challenges with drainage and soil stability. Additionally, the more heavily forested areas in the eastern hills would require extensive clearing and might face greater environmental permitting challenges compared to agricultural lands that are already cleared and actively managed.

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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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.