Severn, Maryland, located in the Northern Temperate Zone, offers a moderately favorable environment for solar PV energy generation throughout the year. The location's seasonal variations in solar output highlight both opportunities and challenges for solar energy production.
Seasonal Solar Performance
Summer stands out as the peak season for solar energy generation in Severn, with an impressive daily output of 6.43 kWh per kW of installed solar capacity. Spring follows closely behind, producing 5.64 kWh/day. These seasons present ideal conditions for maximizing solar energy production.
Autumn sees a noticeable decrease in solar output, generating 3.77 kWh/day. Winter experiences the lowest production at 2.26 kWh/day, reflecting the challenges of shorter days and less direct sunlight during this season.
Optimal Panel Installation
For fixed panel installations in Severn, the ideal tilt angle to maximize year-round solar production is 34 degrees facing South. This angle optimizes the panels' exposure to sunlight throughout the year, balancing the varying sun positions across seasons.
Environmental and Weather Considerations
While Severn's location is generally suitable for solar energy production, there are some factors that could potentially impact efficiency:
- Snowfall: Winter snowstorms can temporarily reduce panel output if snow accumulates on the panels.
- Cloud cover: The region experiences partly cloudy conditions, which can intermittently affect solar generation.
To mitigate these factors, consider installing panels at a steeper angle to encourage snow sliding off and using high-efficiency panels that perform well in low-light conditions. Regular maintenance, including snow removal when necessary, can help ensure optimal performance year-round.
Despite these challenges, Severn's location remains conducive to solar energy production, with particularly strong potential during the spring and summer months. The substantial difference between summer and winter output underscores the importance of proper system sizing to meet year-round energy needs.
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 Severn
Seasonal solar PV output for Latitude: 39.1269, Longitude: -76.698 (Severn, 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 Severn, United States
To maximize your solar PV system's energy output in Severn, United States (Lat/Long 39.1269, -76.698) 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 Severn, 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 Severn, 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 | 43° 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 Severn, 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 Severn, 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 Severn, United States
The area around Severn, Maryland in the United States is characterized by gently rolling terrain typical of the Atlantic Coastal Plain. This region features low-lying land with subtle elevation changes, rarely exceeding 100 feet above sea level. The landscape is a mix of forested areas, open fields, and suburban developments. Numerous small streams and creeks crisscross the area, eventually feeding into larger water bodies like the Severn River to the east and the Patuxent River to the west. These waterways have carved shallow valleys into the soft sedimentary soils, creating a subtly undulating topography.
Solar PV Potential
For large-scale solar PV installations, the most suitable areas nearby would be open, relatively flat spaces with good sun exposure. Former agricultural lands or unused fields in the vicinity of Severn could be prime candidates for solar development. These areas often provide the necessary space and minimal shading required for efficient solar energy production. Specifically, regions to the south and west of Severn might offer better opportunities for solar farms. These areas tend to have more open space and fewer dense residential developments compared to the more populated regions closer to Baltimore and Washington D.C. to the north and east. However, it's important to note that the Mid-Atlantic region, including Maryland, experiences moderate cloud cover throughout the year, which can impact solar energy production. Despite this, advancements in solar technology have made it increasingly viable in areas with less-than-ideal sun exposure. Any large-scale solar project would need to carefully consider local zoning regulations, environmental impact, and proximity to existing electrical infrastructure. The relatively flat terrain and presence of open spaces make the region around Severn generally favorable for solar PV development, but site-specific assessments would be necessary to determine the most optimal locations.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: Tuesday 12th of November 2024
Last Updated: Monday 21st of July 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.




