Methuen, Massachusetts, located in the Northern Temperate Zone, offers a moderately favorable environment for solar PV energy generation throughout the year. The location's seasonal solar output varies significantly, with peak production occurring during the summer months.
Seasonal Solar Performance
Summer stands out as the most productive season, with an impressive 5.75 kWh per day for each kW of installed solar capacity. Spring follows closely behind, generating 5.42 kWh daily. These seasons present ideal conditions for maximizing solar energy production.
Autumn sees a noticeable decrease in output, with 3.35 kWh per day. Winter experiences the lowest production at 2.01 kWh daily, primarily due to shorter daylight hours and less direct sunlight.
Optimal Panel Positioning
For fixed panel installations in Methuen, the ideal tilt angle to maximize year-round solar production is 37 degrees facing South. This angle optimizes the panels' exposure to sunlight throughout the year, accounting for the Earth's elliptical orbit and seasonal variations in sun position.
Environmental Considerations
While Methuen's location is generally suitable for solar energy production, there are some environmental factors to consider:
- Snowfall: New England winters can bring heavy snowfall, potentially covering panels and reducing efficiency.
- Tree cover: The area's vegetation might cast shadows on panels, especially during spring and fall when the sun is lower in the sky.
Preventative Measures
To mitigate these challenges, consider installing panels at a steeper angle to encourage snow sliding off. Regular panel cleaning and maintenance, especially after snowstorms, can help maintain optimal performance. Careful site selection and tree trimming can minimize shading issues. Additionally, using micro-inverters or power optimizers can help maintain overall system efficiency even if some panels are partially shaded.
Despite these challenges, Methuen's location still offers good potential for solar energy production, particularly from late spring through early fall. With proper planning and maintenance, a solar PV system can provide significant energy benefits 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 Methuen
Seasonal solar PV output for Latitude: 42.7287, Longitude: -71.1834 (Methuen, 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 Methuen, United States
To maximize your solar PV system's energy output in Methuen, United States (Lat/Long 42.7287, -71.1834) 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 Methuen, 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 Methuen, 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 | 36° 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 Methuen, 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 Methuen, 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 Methuen, United States
The topography around Methuen, Massachusetts, is characterized by a mix of gently rolling hills, flat areas, and river valleys. Located in the northeastern part of the state, Methuen sits at the edge of the Merrimack Valley, a region known for its diverse landscape shaped by glacial activity thousands of years ago. The area features a combination of low-lying plains and modest elevations, with the highest points reaching around 300 feet above sea level. The Merrimack River, which flows nearby, has played a significant role in shaping the local terrain, creating fertile floodplains and occasional steep banks along its course. Methuen and its surrounding areas are dotted with numerous small ponds, lakes, and wetlands, adding to the varied topography. The landscape is also marked by a mix of forested areas, open fields, and suburban developments, creating a patchwork of different land uses.
Potential Areas for Large-Scale Solar PV
When considering locations for large-scale solar photovoltaic (PV) installations near Methuen, several factors come into play. The ideal areas would be those with relatively flat terrain, good sun exposure, and minimal environmental or residential conflicts. Some of the most suitable areas for solar PV development might include: 1. Former agricultural lands: The region has several areas of open, flat farmland that could be repurposed for solar installations. These sites often have the advantage of being already cleared and having good sun exposure. 2. Industrial zones: Methuen and nearby communities have industrial parks and brownfield sites that could be ideal for solar development. These areas are typically flat, have existing infrastructure, and are often already zoned for industrial use. 3. Large commercial properties: The rooftops of big-box stores, warehouses, and other large commercial buildings in the area could be utilized for solar panel installation, making efficient use of existing structures. 4. Reclaimed landfills: Closed and capped landfills in the region could be repurposed for solar farms, turning otherwise unusable land into productive energy-generating sites. While these areas show potential, it's important to note that any large-scale solar development would require careful planning, environmental assessments, and compliance with local zoning regulations. The hilly nature of some parts of the region may limit the available flat areas suitable for extensive solar installations, but creative solutions and advanced solar technologies could help overcome some of these challenges.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: Sunday 20th of October 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.




