Granby, Connecticut, located in the Northern Temperate Zone at coordinates 41.9493, -72.8023, presents a varied landscape for solar energy generation throughout the year. The location experiences significant seasonal fluctuations in solar output, which is typical for its latitude.
Seasonal Solar Performance
Summer stands out as the peak season for solar energy production in Granby, with an impressive average of 5.84 kWh per day for each kilowatt of installed solar capacity. Spring follows closely behind, generating 5.62 kWh/day. These seasons offer the most sunlight hours and intensity, making them ideal for solar energy harvesting.
Autumn sees a notable decrease in solar output, dropping to 3.51 kWh/day. Winter experiences the lowest production at 2.07 kWh/day, primarily due to shorter daylight hours and the sun's lower position in the sky.
Optimal Panel Installation
For fixed panel installations in Granby, the ideal tilt angle to maximize year-round solar production is 37 degrees facing South. This angle helps optimize energy capture across all seasons, balancing the sun's varying positions throughout the year.
Environmental Considerations
While Granby's location is generally favorable for solar energy production, there are some environmental factors to consider:
- Snow accumulation in winter can temporarily reduce panel efficiency
- Tree cover and shading may impact some installations
To mitigate these issues, consider installing panels at a steeper angle to encourage snow sliding off, and conduct a thorough site assessment to minimize shading from nearby trees or structures. Regular maintenance, including snow removal when necessary, can help ensure consistent energy production year-round.
Overall, while Granby experiences seasonal variations in solar output, its location still provides ample opportunity for effective solar energy generation, especially during the spring and summer months.
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 Granby, Connecticut
Seasonal solar PV output for Latitude: 41.9493, Longitude: -72.8023 (Granby, Connecticut, 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 Granby, Connecticut, United States
To maximize your solar PV system's energy output in Granby, Connecticut, United States (Lat/Long 41.9493, -72.8023) 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 Granby, Connecticut, 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 Granby, Connecticut, 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 |
|---|---|---|---|
| 25° South in Summer | 46° 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 Granby, Connecticut, 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 Granby, Connecticut, 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 Granby, Connecticut, United States
The topography around Granby, Connecticut, United States, is characterized by a mix of gently rolling hills, shallow valleys, and flat areas typical of the New England region. Located in the north-central part of the state, Granby sits at the edge of the Connecticut River Valley, with elevations ranging from about 150 to 300 meters above sea level. The landscape is a result of glacial activity during the last ice age, which shaped the terrain and left behind deposits of sand, gravel, and glacial till. This has created a varied topography with some areas of higher ground interspersed with lower-lying regions. The town is dotted with small streams and ponds, and the Salmon Brook runs through the area, contributing to the local water features.
Potential Areas for Large-Scale Solar PV
When considering areas nearby that would be most suited to large-scale solar photovoltaic (PV) installations, several factors come into play. Ideal locations for solar farms typically include flat or gently sloping land with good sun exposure and minimal shading from trees or structures. The areas to the south and southeast of Granby, extending towards Simsbury and Bloomfield, offer promising potential for solar PV development. These regions feature more open, agricultural land with fewer forested areas, providing better solar access. The relatively flat terrain in these parts would simplify installation and reduce construction costs. Another potentially suitable area lies to the northeast of Granby, in the direction of East Granby and Windsor Locks. This region also contains some open spaces and former agricultural lands that could be repurposed for solar energy production. The proximity to existing electrical infrastructure in these more developed areas could also be advantageous for connecting new solar installations to the grid. It's important to note that while these areas may have favorable topography for solar PV, any large-scale development would need to consider additional factors such as local zoning regulations, environmental impact assessments, and community input. The balance between preserving agricultural land and developing renewable energy sources is an ongoing consideration in this region.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: Saturday 2nd of November 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.




