Seffner, Florida presents a reasonably good location for year-round solar energy generation, though it's not among the most ideal locations in the United States. Located in the Northern Sub Tropics at coordinates 27.9883, -82.2991, this area experiences significant seasonal variation in solar production capacity.
Seasonal Solar Performance
The location shows strong performance during spring months, generating 7.13kWh per day per kW of installed solar capacity - making this the peak production season. Summer follows closely with 6.39kWh/day per kW, while autumn drops to 4.99kWh/day per kW. Winter represents the lowest production period at 4.26kWh/day per kW of installed capacity. Spring emerges as the optimal time for solar generation at this location, likely due to the combination of increasing daylight hours and favorable weather conditions before the intense heat and storms of summer arrive. The substantial difference between peak spring production and winter output demonstrates the seasonal nature of solar generation in this region. For maximum year-round energy production, solar panels should be installed at a fixed tilt angle of 25 degrees facing south. This optimal angle is calculated by analyzing daily solar elevation angles throughout the year and weighting them according to solar irradiance data to maximize total annual output.Environmental and Weather Challenges
Several significant factors in the Seffner area can impede solar energy production and require careful consideration during installation:- Frequent thunderstorms and lightning strikes, particularly during summer months
- High humidity levels that can reduce panel efficiency and promote corrosion
- Hurricane and severe weather risks requiring robust mounting systems
- Heavy rainfall that, while helping clean panels, can be accompanied by damaging winds
- Salt air corrosion from proximity to coastal areas
Preventative Installation Measures
To maximize energy production despite these challenges, several protective measures should be implemented. Lightning protection systems, including proper grounding and surge protectors, are essential given Florida's status as the lightning capital of the United States. Panels and mounting hardware should be rated for high wind speeds and hurricane conditions, with reinforced attachment points to withstand severe weather. Corrosion-resistant materials, particularly aluminum and stainless steel components, help combat the effects of humidity and salt air. Regular maintenance schedules become more critical in this environment, including frequent cleaning and inspection of electrical connections that may corrode more quickly in humid conditions. Proper drainage design prevents water accumulation around ground-mounted systems, while elevated mounting can improve air circulation around panels to reduce the efficiency-reducing effects of high humidity and heat. These measures, while adding to initial installation costs, help ensure consistent energy production throughout the year in Florida's challenging climate.Note: The Northern Sub Tropics extend from 23.5° latitude North up to 35° 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 Seffner
Seasonal solar PV output for Latitude: 27.9883, Longitude: -82.2991 (Seffner, 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 25° South in Seffner, United States
To maximize your solar PV system's energy output in Seffner, United States (Lat/Long 27.9883, -82.2991) throughout the year, you should tilt your panels at an angle of 25° 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 Seffner, 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 Seffner, United States. As mentioned earlier, for fixed-panel solar PV installations, it is optimal to maintain a 25° South tilt angle throughout the year.
| Overall Best Summer Angle | Overall Best Autumn Angle | Overall Best Winter Angle | Overall Best Spring Angle |
|---|---|---|---|
| 12° South in Summer | 33° South in Autumn | 43° South in Winter | 21° 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 Seffner, 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 Seffner, 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 Seffner, United States
Topography and Terrain Around Seffner
Seffner sits in the heart of central Florida's gently rolling landscape, characterized by relatively flat terrain with subtle elevation changes typical of the Tampa Bay region. The area features a mix of low-lying plains and modest ridges, with elevations generally ranging from 50 to 150 feet above sea level. This part of Hillsborough County showcases Florida's characteristic karst topography, where limestone bedrock lies beneath sandy soils, occasionally creating small depressions and sinkholes that dot the landscape. The terrain around Seffner consists primarily of well-drained sandy soils interspersed with areas of clay and organic matter. Rolling hills are common throughout the region, though these elevations are gentle rather than steep. The topography includes scattered wetlands, small lakes, and seasonal ponds that are typical of Florida's interior regions. Agricultural fields, pastureland, and residential developments occupy much of the surrounding area, with patches of pine flatwoods and oak hammocks providing natural vegetation breaks.Drainage and Water Features
The local hydrology includes several creeks and drainage channels that flow toward the Hillsborough River system. These waterways create natural corridors through the landscape, often accompanied by floodplains and wetland areas that remain soggy during the wet season. The terrain slopes gently toward these drainage features, creating a network of watersheds that influence land use patterns throughout the region. Numerous small lakes and retention ponds are scattered across the area, many of which are artificial features created for stormwater management or as part of residential and commercial developments. These water bodies, combined with the natural wetlands, create a patchwork of developable and protected lands throughout the region.Optimal Areas for Large-Scale Solar Development
The most suitable locations for large-scale solar photovoltaic installations around Seffner would be the elevated, well-drained areas with gentle slopes and minimal tree cover. The higher ridges and plateaus offer several advantages, including better drainage, reduced flooding risk, and often clearer access to unobstructed sky views. These elevated areas typically feature sandy soils that provide stable foundations while allowing for easier installation of mounting systems. Agricultural lands and former pastures represent particularly attractive options for solar development, as these areas are already cleared of trees and have established access infrastructure. The gently rolling hills common in the region provide natural drainage while maintaining relatively flat surfaces suitable for solar panel arrays. Areas with south-facing slopes would be especially beneficial, as they can maximize solar exposure throughout the day. The eastern and southeastern portions of the greater Seffner area tend to have more consistent elevation patterns and fewer wetland constraints compared to areas closer to the Hillsborough River system. These zones often feature larger contiguous parcels of developable land with fewer environmental restrictions. The well-drained sandy ridges in these areas provide stable ground conditions and typically require minimal site preparation for large-scale installations. Industrial and commercial zones along major transportation corridors also present opportunities for solar development, as these areas often have existing electrical infrastructure and road access that can support large-scale projects. The relatively flat terrain of many developed areas, combined with proximity to electrical grid connections, makes them practical choices for utility-scale solar installations.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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Article Details for Citation
Author: Aaron Robinson
Publisher: profileSOLAR.com
First Published: Wednesday 13th of August 2025
Last Updated: Wednesday 13th of August 2025
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Compare this location to others worldwide for solar PV potential
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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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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.




