Woburn, Massachusetts, in the United States, offers a variable environment for solar PV energy generation throughout the year. Located in the Northern Temperate Zone, this location experiences significant seasonal fluctuations in solar energy production.
Seasonal Solar Production
Solar panels in Woburn produce their highest output during summer months, generating approximately 5.72 kWh per day for each kilowatt of installed capacity. Spring follows closely behind with 5.37 kWh/day per kW. Production drops considerably during autumn to 3.29 kWh/day, and reaches its lowest point in winter with just 1.95 kWh/day per kW of installed capacity.
These figures clearly indicate that Woburn experiences strong seasonal variation, with summer production being nearly three times higher than winter production. This pattern is typical for locations in the northern United States, where shorter winter days and the sun's lower position in the sky significantly reduce solar energy potential during colder months.
Optimal Panel Installation
For fixed solar panel installations in Woburn, the ideal tilt angle to maximize year-round energy production is 37 degrees facing South. This carefully calculated angle balances seasonal variations to capture the most solar energy across the entire year.
Environmental and Weather Considerations
Several environmental factors in Woburn can potentially impact solar production:
- Snow accumulation in winter months can temporarily cover panels, reducing or eliminating production until cleared
- New England's variable weather patterns, including frequent cloud cover during certain seasons
- Tree coverage and shading issues common in Massachusetts suburban areas
- Occasional severe weather events including nor'easters and heavy snowstorms
Preventative Measures
To maximize solar production in Woburn despite these challenges, several preventative measures are recommended:
- Install panels at the optimal 37-degree angle to help shed snow more effectively
- Implement regular panel cleaning schedules, particularly after snowfall
- Consider strategic tree trimming to minimize shading issues
- Use microinverters or power optimizers to minimize the impact of partial shading
- Select high-efficiency panels that perform better in lower-light conditions common during New England winters
While Woburn isn't ideal for year-round consistent solar production due to its seasonal variations, properly designed systems can still provide significant energy generation, particularly from late spring through early fall when production is at its highest.
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 Woburn
Seasonal solar PV output for Latitude: 42.481, Longitude: -71.1563 (Woburn, 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 37° South in Woburn, United States
To maximize your solar PV system's energy output in Woburn, United States (Lat/Long 42.481, -71.1563) throughout the year, you should tilt your panels at an angle of 37° 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 Woburn, 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 Woburn, United States. As mentioned earlier, for fixed-panel solar PV installations, it is optimal to maintain a 37° South tilt angle throughout the year.
| Overall Best Summer Angle | Overall Best Autumn Angle | Overall Best Winter Angle | Overall Best Spring Angle |
|---|---|---|---|
| 26° South in Summer | 47° South in Autumn | 57° South in Winter | 35° 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 Woburn, 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 Woburn, 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 Woburn, United States
Woburn is a city located in Middlesex County, Massachusetts, approximately 9 miles north of Boston. The topography of Woburn and its surrounding areas is characterized by gently rolling hills, shallow valleys, and several small water bodies, typical of the New England landscape that was shaped by glacial activity thousands of years ago. The terrain around Woburn varies from about 50 feet to 300 feet above sea level, with Horn Pond Mountain representing one of the higher elevations in the area at approximately 287 feet. The city itself sits in a shallow basin surrounded by these modest hills, with Horn Pond being a prominent water feature near the center of Woburn.
Local Terrain Features
The eastern portion of Woburn tends to be slightly flatter, while the western sections contain more pronounced hills and elevated terrain. Several brooks and small streams crisscross the landscape, including Aberjona River which flows through the eastern part of the city. The area also contains scattered wetlands and small ponds, with Horn Pond being the largest water body within city limits. The soil composition varies but generally consists of glacial till and some bedrock outcroppings. Much of the original natural landscape has been modified by urban and suburban development, though some wooded areas remain, particularly in conservation lands and parks.Potential Areas for Solar PV Development
For large-scale solar PV installations, the most suitable areas near Woburn would be: The relatively flat former industrial zones in eastern Woburn and neighboring Reading offer potential sites for solar development. These areas have already been disturbed by human activity, making them preferable to undeveloped natural lands. The gently sloping south-facing hillsides in Burlington and Lexington, west and southwest of Woburn, present favorable conditions for solar collection. These areas receive good sun exposure due to their orientation. Some of the commercial zones along Interstate 95/Route 128 corridor contain large flat rooftops and parking areas that could be utilized for solar installations without consuming additional land resources. The less densely populated areas north of Woburn, extending into Wilmington and Billerica, include some open spaces with minimal shading from tall trees or structures, making them potentially suitable for ground-mounted solar arrays.Topographical Challenges
Despite these opportunities, several topographical factors present challenges for large-scale solar development in the region. The rolling terrain means that some areas may experience shading during parts of the day. The numerous small wetlands and water bodies create fragmented land parcels that may limit the size of continuous installations. The region's developed nature means that large, contiguous open spaces are limited. The modest hills, while not mountainous, still create variations in elevation that can affect optimal panel placement and increase installation costs. Winter conditions in this New England location can include snow accumulation that temporarily reduces solar efficiency, though properly angled panels on the area's sloped terrains can mitigate this issue somewhat through natural snow shedding.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: Wednesday 4th of June 2025
Last Updated: Monday 21st of July 2025
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Compare this location to others worldwide for solar PV potential
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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
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.




