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Flag of United StatesSolar PV Analysis of Brandywine, United States

Graph of hourly avg kWh electricity output per kW of Solar PV installed in Brandywine, United States (by season)

Brandywine, Maryland offers moderately good conditions for year-round solar energy generation, though like most locations in the Northern Temperate Zone, it experiences significant seasonal variation in solar output.

Seasonal Solar Performance

The solar energy production at this location shows a clear seasonal pattern that reflects the natural cycle of sun angles and daylight availability. Summer provides the strongest performance at 6.67 kWh per day per kW of installed solar capacity, making it the peak season for solar generation. Spring follows as the second-best season with 5.91 kWh per day per kW, offering nearly as much energy production as summer. Autumn sees a notable drop to 4.01 kWh per day per kW, while winter represents the most challenging period with only 2.44 kWh per day per kW of production. This winter figure is typical for mid-Atlantic locations and reflects the lower sun angles and shorter days characteristic of the season.

Optimal Panel Configuration

For maximum year-round energy production at Brandywine, solar panels should be installed at a fixed tilt angle of 33 degrees facing south. This angle has been calculated to optimize total annual output by accounting for the sun's varying elevation throughout the year and weighting these angles based on actual solar irradiance data.

Local Factors Affecting Solar Production

Several environmental and weather factors in the Brandywine area can impact solar energy generation:
  • Humidity and haze: The mid-Atlantic region experiences high humidity levels, particularly in summer, which can create atmospheric haze that reduces solar irradiance reaching the panels
  • Thunderstorms: Summer thunderstorms are common and can cause temporary but significant drops in solar production during peak generation season
  • Snow accumulation: Winter snowfall can cover panels and block sunlight, though this is typically temporary
  • Tree coverage: The heavily forested nature of much of Maryland means shading from trees can be a significant concern

Preventative Measures for Better Performance

Several installation strategies can help maximize solar energy production despite these local challenges:
  • Site selection: Choose locations with minimal tree shading, particularly avoiding shade during peak sun hours (10 AM to 2 PM)
  • Panel cleaning systems: Install accessible mounting systems that allow for easy cleaning of panels to remove dust, pollen, and debris that accumulate due to high humidity
  • Steep tilt angles: The recommended 33-degree tilt helps snow slide off panels more easily and reduces debris accumulation
  • Quality inverters: Use inverters with good performance in high humidity conditions and ensure proper ventilation to prevent overheating during humid summers
Regular maintenance becomes particularly important in this climate, including periodic cleaning and inspection for weather-related damage from storms. The location's moderate solar resource makes it viable for solar installation, but proper planning and maintenance are essential for optimal performance 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 Brandywine

Seasonal solar PV output for Latitude: 38.6922, Longitude: -76.832 (Brandywine, 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:

Summer
Average 6.67kWh/day in Summer.
Autumn
Average 4.01kWh/day in Autumn.
Winter
Average 2.44kWh/day in Winter.
Spring
Average 5.91kWh/day in Spring.

 

Ideally tilt fixed solar panels 33° South in Brandywine, United States

To maximize your solar PV system's energy output in Brandywine, United States (Lat/Long 38.6922, -76.832) throughout the year, you should tilt your panels at an angle of 33° 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.

The sun
At Latitude: 38.6922, Longitude: -76.832, the ideal angle to tilt panels is 33° South

Seasonally adjusted solar panel tilt angles for Brandywine, 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 Brandywine, United States. As mentioned earlier, for fixed-panel solar PV installations, it is optimal to maintain a 33° South tilt angle throughout the year.

Overall Best Summer Angle Overall Best Autumn Angle Overall Best Winter Angle Overall Best Spring Angle
22° South in Summer 43° South in Autumn 54° South in Winter 31° South in Spring

Assuming you can modify the tilt angle of your solar PV panels throughout the year, you can optimize your solar generation in Brandywine, United States as follows: In Summer, set the angle of your panels to 22° facing South. In Autumn, tilt panels to 43° facing South for maximum generation. During Winter, adjust your solar panels to a 54° angle towards the South for optimal energy production. Lastly, in Spring, position your panels at a 31° angle facing South to capture the most solar energy in Brandywine, United States.

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 Brandywine, 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 Brandywine, 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.






Please enter information above to calculate panel spacing.

Topography for solar PV around Brandywine, United States

Topographical Characteristics of Brandywine, Maryland

The Brandywine area in southern Maryland sits within the Mid-Atlantic Coastal Plain, characterized by gently rolling terrain with modest elevation changes. This region features relatively flat to slightly undulating topography, with elevations typically ranging from about 100 to 300 feet above sea level. The landscape consists of broad, shallow valleys interspersed with low ridges and gentle slopes that drain toward the Chesapeake Bay watershed. The local terrain is shaped by sedimentary deposits left from ancient marine environments, creating soils that are generally well-drained sandy loams and clay loams. Small creeks and tributaries wind through the area, creating subtle valleys and drainage patterns that add gentle variation to an otherwise relatively level landscape. The topography becomes gradually flatter as one moves eastward toward the Chesapeake Bay, while slightly more pronounced rolling hills appear to the west approaching the Fall Line.

Forest Cover and Land Use Patterns

Much of the Brandywine vicinity remains heavily forested, with mixed deciduous and coniferous woodlands covering significant portions of the landscape. These forests primarily consist of oak, hickory, pine, and other native Mid-Atlantic species that create dense canopy cover across much of the region. Agricultural areas are scattered throughout, featuring both active farmland and abandoned fields in various stages of succession back to forest. The existing development pattern includes suburban residential areas, small commercial centers, and rural properties with larger lot sizes. Many areas maintain a semi-rural character with homes nestled among trees, while some locations have been cleared for agriculture or development, creating a patchwork of open and forested land.

Optimal Areas for Large-Scale Solar Development

The most suitable locations for large-scale solar photovoltaic installations would be the existing cleared agricultural fields and open meadowlands scattered throughout the region. These areas offer several advantages including minimal tree removal requirements, relatively flat terrain that reduces grading costs, and established access via farm roads and rural highways. Former agricultural lands that have been recently cleared or are currently used for crop production present excellent opportunities for solar development. These sites typically have good drainage, stable soils, and are already integrated into the local road network. The gentle slopes found in many of these areas are actually beneficial for solar installations, as they can improve drainage and optimize panel orientation. Areas along the broader ridgetops and plateau-like sections would be particularly well-suited for large installations, as they offer expansive relatively flat spaces with good southern exposure. The slightly elevated positions of these sites also tend to have fewer issues with standing water and provide better air circulation around solar equipment.

Terrain Considerations for Installation

The generally stable soils and modest topographic relief in the Brandywine area create favorable conditions for solar mounting systems. The sedimentary soils provide adequate bearing capacity for both ground-mounted racking systems and ballasted installations. The gentle terrain minimizes the need for extensive site preparation and grading, reducing overall project costs. Drainage patterns should be carefully considered, as the area does experience seasonal water flow through its network of small streams and drainage swales. However, the generally well-drained soils and gentle slopes mean that most suitable sites would not face significant flooding or water management challenges. The relatively stable geology also reduces concerns about soil erosion or ground movement that might affect solar installations over their operational lifetime.

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

Article: Solar PV Analysis of Brandywine, United States
Author: Aaron Robinson
Publisher: profileSOLAR.com
First Published: Saturday 19th of July 2025
Last Updated: Thursday 7th 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.

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