Solar PV Analysis of Gaithersburg, United States
Gaithersburg, Maryland, is a decent location for generating energy through solar photovoltaic (PV) systems throughout the year. However, the amount of electricity you can generate varies by season.
In simple terms, a solar PV system in Gaithersburg can produce more electricity in summer and spring than in autumn and winter. Specifically, for every kilowatt of installed solar power, you could expect to generate about 6.31 kilowatt-hours per day in summer and 5.51 kilowatt-hours per day in spring. In contrast, the same system would only produce around 3.70 kilowatt-hours per day during fall and just 2.27 kilowatt-hours per day in winter.
So if you're considering when to rely most on your solar panels for power needs or when to sell back excess power to the grid (if that's an option), summer and spring would be ideal times at this location.
To get the most out of your solar PV system all year round here, it's recommended that you tilt your panels at an angle of 34 degrees facing south - this position optimizes exposure to sunlight across all seasons.
But there are some local factors that might hinder optimal energy production from your solar panels:
1) Weather: Gaithersburg experiences frequent cloud cover which can reduce sunlight exposure.
2) Snow: Winters here often bring snow which could accumulate on panels blocking sunlight.
3) Trees or buildings: If there are trees or tall structures nearby casting shadows over where panels are installed they will reduce their effectiveness.
To overcome these challenges:
- Regularly clean off any accumulated debris like leaves or snow from panel surfaces.
- Trim tree branches if they're causing significant shading issues.
- Consider using tracking mounts that move with the sun’s path across the sky instead of fixed ones; this allows maximum sun exposure throughout daylight hours but may increase installation costs significantly.
In conclusion, while Gaithersburg is not the absolute best location for solar power due to its weather and seasonal variations in sunlight intensity, it's still a viable option with proper installation and maintenance.
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 Gaithersburg
Seasonal solar PV output for Latitude: 39.1723, Longitude: -77.183 (Gaithersburg, 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 Gaithersburg, United States
To maximize your solar PV system's energy output in Gaithersburg, United States (Lat/Long 39.1723, -77.183) 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 Gaithersburg, 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 Gaithersburg, 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 Gaithersburg, 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 Gaithersburg, 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 Gaithersburg, United States
Gaithersburg, United States is located in the state of Maryland. The topography around Gaithersburg is primarily flat to gently rolling terrain, with some hilly areas. This area is part of the Piedmont Plateau region and it's surrounded by low-lying plains and small hills.
For large-scale solar PV installations, flat or gently sloping lands are ideal as they require less groundwork for installation and can accommodate more solar panels per unit area. Therefore, the flatter regions around Gaithersburg would be most suitable for such projects.
However, other factors like sun exposure (solar irradiance), land usage restrictions, proximity to power transmission lines and local regulations should also be considered when selecting a site for large-scale solar PV installations.
In terms of specific locations nearby that may be suited to large scale solar PV:
1) Agricultural lands: There are several agricultural fields in Montgomery County where Gaithersburg is located. These open spaces could potentially be used for dual-purpose farming and solar energy production if zoning laws permit.
2) Industrial zones: Areas zoned for industrial use could also provide ample space for installing large scale solar arrays without impacting residential or natural areas.
3) Brownfield sites: These are previously developed lands that may have been contaminated but have potential to be reused. They could provide suitable locations because they often have good access to infrastructure including power grids which would help in transmitting the generated electricity.
Remember that any specific project would need detailed feasibility studies considering all these factors along with economic analysis before implementation.
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: Thursday 2nd of May 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.
