Hatfield, Massachusetts, located in the Northern Temperate Zone, presents a mixed picture for solar energy generation throughout the year. This location experiences significant seasonal variations in solar output, which impacts the overall efficiency of solar PV systems.
Seasonal Solar Performance
The solar energy potential in Hatfield varies considerably across seasons. Summer stands out as the most productive period, with an impressive 5.73 kWh per day for each kilowatt of installed solar capacity. Spring follows closely behind, generating 5.39 kWh/day. However, there's a notable decline in output during autumn (3.29 kWh/day) and a significant drop in winter (1.92 kWh/day).
Optimal Times for Solar Generation
The most ideal times for solar energy production in Hatfield are from late spring through early fall. During these months, longer daylight hours and higher sun angles contribute to increased solar panel efficiency. The period from May to September is particularly favorable, offering the best conditions for maximizing solar energy output.
Panel Installation Considerations
For fixed panel installations in Hatfield, the optimal tilt angle to maximize year-round production is 37 degrees facing south. This angle helps balance energy production across seasons, capturing more sunlight during winter months when the sun is lower in the sky while still performing well during summer.
Environmental and Weather Factors
Several factors can impact solar production in Hatfield:
- Snow accumulation in winter can significantly reduce panel efficiency
- Cloudy and overcast days, particularly common in late fall and winter, can decrease solar output
To mitigate these issues, consider installing panels at a steeper angle to encourage snow sliding off. Additionally, using high-efficiency panels and ensuring regular maintenance, including snow removal, can help maintain optimal performance year-round.
While Hatfield's location presents challenges, particularly in winter, it still offers considerable potential for solar energy generation, especially during the warmer months. With proper planning and installation techniques, a solar PV system can provide substantial energy output 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 Hatfield, Massachusetts
Seasonal solar PV output for Latitude: 42.3709, Longitude: -72.5981 (Hatfield, Massachusetts, 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 Hatfield, Massachusetts, United States
To maximize your solar PV system's energy output in Hatfield, Massachusetts, United States (Lat/Long 42.3709, -72.5981) 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 Hatfield, Massachusetts, 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 Hatfield, Massachusetts, 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 Hatfield, Massachusetts, 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 Hatfield, Massachusetts, 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 Hatfield, Massachusetts, United States
The topography around Hatfield, Massachusetts, located at 42.3709°N, 72.5981°W, is characterized by a diverse landscape that reflects the region's glacial history and its position in the Connecticut River Valley. The area features a mix of flat river plains, gently rolling hills, and more pronounced elevations as one moves away from the river. Hatfield itself sits on relatively flat terrain, with much of the town occupying the fertile floodplain of the Connecticut River. This area is known for its rich agricultural lands, which have been cultivated for centuries. As you move west from the river, the land gradually rises, forming gentle slopes and low hills. To the east of Hatfield, across the Connecticut River, the terrain becomes more varied. The land rises more steeply, forming the western slopes of the Pelham Hills. These hills are part of the larger Central Hills region of Massachusetts and offer a stark contrast to the flat river valley below.
Solar PV Potential
When considering areas nearby that would be most suited to large-scale solar PV installations, several factors come into play. The ideal locations would combine favorable topography with minimal environmental and agricultural impact. The flat, open areas of the Connecticut River Valley, particularly those not currently used for high-value agriculture, could be well-suited for solar farms. These areas offer large, unobstructed spaces with good sun exposure throughout the day. However, care must be taken to balance energy production with the preservation of prime farmland. Some of the gently sloping hillsides to the west and east of Hatfield might also be suitable for solar installations. South-facing slopes, in particular, could provide excellent exposure for solar panels. These areas may be less agriculturally productive and could offer a good compromise between energy generation and land use. Former industrial sites or brownfields in the region could also be prime candidates for solar development. These locations often have the advantage of existing infrastructure and minimal impact on natural or agricultural resources. It's important to note that any large-scale solar development would need to consider factors beyond just topography, including local zoning laws, grid connection capabilities, and community acceptance. Environmental impact assessments would also be crucial to ensure that solar installations do not negatively affect local ecosystems or wildlife habitats.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
Author: Aaron Robinson
Publisher: profileSOLAR.com
First Published: Monday 11th of November 2024
Last Updated: Monday 21st of July 2025
Tell Us About Your Work
We love seeing how our research helps others! If you've cited this article in your work, we'd be delighted to hear about it. Drop us a line via our Contact Us page or on X, to share where you've used our information - we may feature a link to your work on our site. This helps create a network of valuable resources for others in the solar energy community and helps us understand how our research is contributing to the field. Plus, we occasionally highlight exceptional works that reference our research on our social media channels.
Feeling generous?
Share this with your friends!

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.




