Damascus, Maryland, United States offers a location with significant seasonal variations in solar energy production potential. Located in the Northern Temperate Zone, this area experiences moderate solar energy generation capabilities throughout the year, with distinct seasonal patterns.
Seasonal Solar Production
The solar potential in Damascus varies considerably across seasons. Summer stands out as the most productive period, generating approximately 6.30kWh per day for each kilowatt of installed solar capacity. Spring follows as the second most productive season, yielding about 5.48kWh daily per kilowatt. Autumn production decreases to 3.64kWh per day, while winter shows the lowest output at just 2.20kWh daily per kilowatt of installed capacity.
This pattern creates a roughly 3:1 ratio between the best and worst seasons, with summer producing nearly three times the energy of winter months. The substantial difference highlights the seasonal nature of solar energy in this temperate location.
Optimal Installation Parameters
For fixed panel installations in Damascus, the ideal tilt angle to maximize year-round energy production is 34 degrees facing South. This angle has been calculated by analyzing daily solar elevation patterns at this specific latitude, weighted according to the daily photovoltaic potential throughout the year.
This carefully calculated angle represents the best compromise between capturing low-angle winter sun and the higher summer sun path, optimizing total annual energy production.
Environmental and Weather Considerations
Several factors may impact solar production in Damascus. Winter snowfall can temporarily cover panels, reducing output during already low-production months. Installing panels at the recommended 34-degree tilt helps snow slide off more easily than a flatter installation would allow.
The region experiences occasional severe weather including thunderstorms and infrequent hurricanes that can bring cloud cover and potential physical hazards. Quality mounting systems rated for local wind conditions are essential.
Tree coverage in Damascus can be substantial, as the area features mature forests. A thorough shade analysis during site evaluation can identify potential shading issues throughout the year. Strategic tree trimming or using microinverters/power optimizers can help mitigate partial shading effects.
Seasonal pollen and dust accumulation may gradually reduce panel efficiency, particularly during spring and fall. Implementing a regular cleaning schedule or installing self-cleaning panels can maintain optimal performance year-round.
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 Damascus, Maryland
Seasonal solar PV output for Latitude: 39.2884, Longitude: -77.2039 (Damascus, Maryland, 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 Damascus, Maryland, United States
To maximize your solar PV system's energy output in Damascus, Maryland, United States (Lat/Long 39.2884, -77.2039) 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 Damascus, Maryland, 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 Damascus, Maryland, 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 | 44° 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 Damascus, Maryland, 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 Damascus, Maryland, 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 Damascus, Maryland, United States
Damascus, located in Montgomery County, Maryland, is nestled within the rolling landscape of the Piedmont region, which forms a transitional zone between the flat Coastal Plain to the east and the more rugged Appalachian Mountains to the west. The topography around Damascus is characterized by gently undulating hills, shallow valleys, and modest elevations that typically range between 600 and 800 feet above sea level. The area features numerous small streams and creeks that have carved subtle valleys throughout the landscape, with the most prominent being the Patuxent River watershed to the east and the Monocacy River watershed to the west. These waterways have gradually shaped the terrain over millennia, creating a patchwork of ridges and depressions across the region.
Soil and Geological Features
The underlying geology consists primarily of metamorphic and igneous rocks, which have weathered over time to produce moderately fertile soils. These soils generally have good drainage capabilities, an important consideration for construction projects including solar installations. The bedrock is relatively stable, providing solid foundations for large infrastructure developments.Land Use Patterns
The immediate vicinity of Damascus features a mix of suburban development, agricultural land, and scattered woodland areas. Moving outward from the town center, the proportion of agricultural and undeveloped land increases significantly. These open spaces represent potential opportunities for large-scale solar development, particularly in areas that are already cleared and have minimal ecological sensitivity.Optimal Areas for Solar PV Development
Several factors make certain areas around Damascus particularly suitable for large-scale solar photovoltaic installations. The gently sloping terrain to the south and southwest of Damascus offers ideal conditions for solar array placement. These areas benefit from favorable sun exposure throughout the day while requiring minimal grading and site preparation. The relatively moderate slopes (typically between 2-5%) provide natural drainage without creating excessive challenges for construction or maintenance. The agricultural lands approximately 3-5 miles west and southwest of Damascus present some of the most promising opportunities for solar development. These areas combine advantageous topographical features with existing road access and proximity to transmission infrastructure. The land in these sectors is predominantly cleared, reducing both environmental impact and site preparation costs. Another promising region lies to the northeast of Damascus, where several large, open plateaus offer excellent solar exposure with minimal shadowing from surrounding terrain features. These areas have sufficient elevation to avoid most morning fog that occasionally forms in the lower valleys, maximizing potential energy capture. The relatively flat terrain along some portions of the MD-27 corridor also presents opportunities for solar development, though these areas must be carefully evaluated for potential conflicts with existing development plans and agricultural preservation initiatives. Areas less suitable for solar development include the steeper slopes found in some of the stream valleys, heavily forested sections, and locations with north-facing aspects. Additionally, wetland areas associated with the local watershed systems would present both environmental and technical challenges for solar installation.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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Author: Aaron Robinson
Publisher: profileSOLAR.com
First Published: Tuesday 29th of April 2025
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.
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Calculate Your Optimal Solar Panel Tilt Angle: A Comprehensive Guide
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