Piqua, Ohio shows moderate potential for year-round solar energy generation, though with significant seasonal variations typical of locations in the Northern Temperate Zone. The solar output data reveals a clear pattern of higher production during warmer months and reduced generation during winter.
Seasonal Solar Performance
Summer represents the peak solar generation period at this location, producing 6.31 kWh per day per kW of installed capacity. This makes summer the most productive season for solar energy harvesting. Spring follows as the second-best performing season with 5.52 kWh per day per kW, making it nearly as effective as summer for solar generation. Autumn shows a notable decline in solar output at 3.57 kWh per day per kW, reflecting shorter days and lower sun angles. Winter presents the most challenging conditions with only 2.32 kWh per day per kW, representing less than 40% of summer production levels.Optimal Panel Configuration
For maximum year-round energy production at Piqua, Ohio, solar panels should be installed at a fixed tilt angle of 35 degrees facing south. This angle has been calculated to optimize total annual solar output by accounting for the sun's changing position throughout the year and weighting for actual solar irradiance potential at this latitude.Local Factors Affecting Solar Production
Several environmental and weather factors in the Piqua area can impact solar energy generation:- Snow accumulation during winter months can block panels and reduce output
- Ice formation on panels can create similar blocking effects
- Midwest weather patterns bring frequent cloud cover and storms
- High humidity levels can reduce solar efficiency
- Potential for severe weather including hail and high winds
Preventative Installation Measures
To maximize solar production despite these challenges, several installation strategies should be considered: The 35-degree tilt angle recommended for this location naturally helps with snow shedding, as steeper angles allow snow to slide off more easily than flat installations. Installing panels with adequate spacing between rows prevents snow from one panel casting shadows on panels below. Selecting panels with anti-reflective coatings and tempered glass helps maintain efficiency in high-humidity conditions while providing resistance to hail damage. Robust mounting systems designed for high wind loads are essential given the area's potential for severe weather. Regular maintenance scheduling becomes particularly important during winter months to clear any ice or snow buildup that persists despite the optimal tilt angle. Installing monitoring systems helps identify when panels need cleaning or when weather-related issues are affecting performance. Despite the seasonal variations and weather challenges, Piqua's location still provides reasonable solar generation potential, particularly during the six-month period from spring through early autumn when production levels remain relatively strong.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 Piqua
Seasonal solar PV output for Latitude: 40.144, Longitude: -84.2383 (Piqua, 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 35° South in Piqua, United States
To maximize your solar PV system's energy output in Piqua, United States (Lat/Long 40.144, -84.2383) 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.
Seasonally adjusted solar panel tilt angles for Piqua, 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 Piqua, 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 |
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 Piqua, 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 Piqua, 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 Piqua, United States
Topographical Features Around Piqua
The landscape surrounding Piqua, Ohio is characterized by relatively flat to gently rolling terrain typical of west-central Ohio. This region sits within the Till Plains physiographic province, where ancient glacial activity has created a predominantly level topography with subtle undulations. The elevation around Piqua generally ranges from approximately 900 to 1,100 feet above sea level, with most variations being gradual rather than dramatic.
The Great Miami River flows northward through the area, creating a modest river valley that adds some gentle relief to the otherwise uniform landscape. This waterway and its tributaries have carved shallow valleys and created small floodplains, but these features represent minor topographical variations rather than significant elevation changes. The surrounding countryside consists mainly of agricultural fields with occasional woodlots, creating an open landscape with minimal obstructions to solar exposure.
Drainage and Land Use Patterns
The region's drainage system is well-established, with the Great Miami River serving as the primary waterway. Smaller creeks and streams create a dendritic pattern across the landscape, though most of these waterways occupy shallow channels that don't significantly impact the overall flat character of the terrain. Agricultural drainage tiles are common throughout the area, helping to manage seasonal water accumulation in the clay-rich soils that are prevalent in this glaciated region.
Farmland dominates the landscape surrounding Piqua, with large fields of corn and soybeans creating expansive open areas. These agricultural parcels are typically rectangular and range from moderate to large in size, reflecting the efficiency of mechanized farming on level terrain. Scattered farm buildings, rural residences, and small woodlots punctuate the agricultural landscape, but overall development density remains low outside the immediate urban area.
Optimal Areas for Large-Scale Solar Development
The most promising locations for large-scale solar photovoltaic installations would be the extensive agricultural areas south and west of Piqua. These zones offer several advantages including minimal topographical obstacles, large contiguous parcels of land, and relatively few existing structures that could create shading issues. The flat to gently sloping terrain in these areas would require minimal grading or site preparation, reducing installation costs and environmental impact.
Areas with south-facing slopes, even gentle ones, would be particularly well-suited for solar development as they can optimize panel orientation and reduce potential shading from any nearby vegetation or structures. The agricultural fields east of the Great Miami River also present excellent opportunities, as they combine suitable topography with good accessibility via existing rural road networks.
The relatively open nature of the landscape means that most potential solar sites would have unobstructed southern exposure, which is crucial for maximizing energy production. Areas closer to existing electrical infrastructure, such as transmission lines that serve the region's agricultural and industrial facilities, would offer additional advantages by reducing interconnection costs and complexity.
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: Friday 8th of August 2025
Last Updated: Friday 8th 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.




