Belle Vernon, Pennsylvania, located in the Northern Temperate Zone at coordinates 40.1193, -79.8607, presents a varied landscape for solar energy generation throughout the year. The location experiences significant seasonal fluctuations in solar output, which impacts the overall effectiveness of solar PV systems.
Seasonal Solar Performance
Summer stands out as the most productive season for solar energy in Belle Vernon, with an impressive daily output of 6.10 kWh per kW of installed solar capacity. This high performance is due to longer daylight hours and the sun's higher position in the sky. Spring follows closely behind, generating 5.23 kWh per day per kW installed. This season offers a good balance of sunlight and moderate temperatures, making it an excellent time for solar energy production. Autumn sees a significant drop in solar output, with 3.41 kWh per day per kW installed. As days grow shorter and the sun's angle decreases, energy production diminishes compared to the summer months. Winter presents the greatest challenge for solar energy in Belle Vernon, with a daily output of only 1.87 kWh per kW installed. Shorter days, lower sun angles, and potential snow cover contribute to this reduced performance.Optimal Panel Installation
For fixed panel installations in Belle Vernon, the ideal tilt angle to maximize year-round solar production is 34 degrees facing South. This angle helps optimize energy capture across all seasons, balancing the high summer sun with the lower winter sun position.Environmental and Weather Factors
Several factors can impact solar production in Belle Vernon: 1. Snow accumulation: Winter snowfall can temporarily reduce panel efficiency by blocking sunlight. Regular panel cleaning or installing panels at a steeper angle can help mitigate this issue. 2. Cloud cover: The region experiences partly cloudy conditions throughout the year, which can intermittently reduce solar output. Using high-efficiency panels can help maximize energy production even in less-than-ideal conditions. 3. Tree shading: Belle Vernon's landscape includes areas with mature trees. Careful site selection and tree trimming may be necessary to minimize shading on solar panels. 4. Air pollution: The area's proximity to industrial zones may lead to occasional air quality issues, potentially reducing solar irradiance. Regular panel cleaning can help maintain optimal performance. To address these factors, consider implementing micro-inverters or power optimizers, which can help maintain system efficiency even when some panels are partially shaded or covered. Additionally, choosing durable, high-quality panels with anti-soiling coatings can improve performance in various weather conditions. While Belle Vernon's location presents some challenges for year-round solar energy production, proper system design and maintenance can still yield significant energy benefits, particularly during the spring and summer months.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 Belle Vernon
Seasonal solar PV output for Latitude: 40.1193, Longitude: -79.8607 (Belle Vernon, 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 Belle Vernon, United States
To maximize your solar PV system's energy output in Belle Vernon, United States (Lat/Long 40.1193, -79.8607) 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 Belle Vernon, 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 Belle Vernon, 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 |
|---|---|---|---|
| 24° South in Summer | 44° South in Autumn | 55° 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 Belle Vernon, 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 Belle Vernon, 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 Belle Vernon, United States
The topography around Belle Vernon, United States, located at latitude 40.1193 and longitude -79.8607, is characterized by a mix of rolling hills, river valleys, and gently sloping terrain. This area is situated in southwestern Pennsylvania, near the border with West Virginia, and is part of the Appalachian Plateau region. The landscape surrounding Belle Vernon is heavily influenced by the presence of the Monongahela River, which flows northward just to the east of the town. The river has carved a wide valley through the region, creating steep bluffs and terraces along its banks. As you move away from the river, the terrain becomes more undulating, with a series of hills and ridges interspersed with small valleys and streams. The elevation in the Belle Vernon area generally ranges from about 750 to 1,200 feet above sea level. The highest points are typically found on the ridge tops, while the lowest elevations are along the river and in the valley bottoms. This varied topography creates a patchwork of different microclimates and ecosystems, including forests, meadows, and agricultural lands.
Potential Areas for Large-Scale Solar PV
When considering areas nearby that would be most suited to large-scale solar photovoltaic (PV) installations, several factors come into play. Ideal locations for solar farms typically include: 1. Relatively flat or gently sloping land: The areas to the west and southwest of Belle Vernon, where the terrain becomes less rugged and more open, could be suitable. These areas often have larger expanses of level ground that would require minimal grading for solar panel installation. 2. South-facing slopes: Some of the hillsides in the region that face predominantly south would be good candidates for solar PV arrays, as they would receive more direct sunlight throughout the day. 3. Former industrial or mining sites: The region around Belle Vernon has a history of coal mining and other industrial activities. Reclaimed mine lands or brownfield sites could be repurposed for solar energy production, providing an environmentally friendly use for these areas. 4. Agricultural land: While preserving productive farmland is important, some less fertile or marginal agricultural areas might be suitable for solar development, particularly if dual-use strategies (such as agrivoltaics) are employed. 5. Areas with existing grid infrastructure: Locations near existing power lines and substations would be advantageous for connecting large-scale solar installations to the electrical grid. It's important to note that any large-scale solar PV development would need to consider various environmental, social, and regulatory factors beyond just topography. These include local zoning laws, wildlife habitats, cultural resources, and community preferences. Detailed site-specific studies would be necessary to determine the most appropriate locations for solar energy projects in the Belle Vernon area.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: Sunday 24th of November 2024
Last Updated: Monday 21st of July 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?
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.
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.




