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Flag of United StatesSolar PV Analysis of Tolland, United States

Graph of hourly avg kWh electricity output per kW of Solar PV installed in Tolland, United States (by season)

Tolland, Connecticut, located in the Northern Temperate Zone, offers a moderate potential for solar energy generation throughout the year. The location's solar performance varies significantly across seasons, reflecting the typical climate patterns of the northeastern United States.

Seasonal Solar Performance

Summer stands out as the most productive season for solar energy in Tolland, with an average daily output of 5.81 kWh per kW of installed solar capacity. Spring follows closely behind, generating 5.58 kWh/day. These seasons benefit from longer daylight hours and generally clearer skies, making them ideal for solar energy production.

Autumn sees a noticeable decrease in solar output, averaging 3.45 kWh/day. This decline is due to shorter days and increased cloud cover typical of the fall season in Connecticut. Winter presents the greatest challenge for solar energy generation, with daily output dropping to just 2.01 kWh/day per kW installed. The combination of short days, low sun angle, and frequent overcast conditions contributes to this reduced performance.

Optimizing Solar Panel Installation

To maximize year-round solar energy production in Tolland, fixed solar panels should be installed at a tilt angle of 36 degrees facing south. This angle optimizes the panels' exposure to sunlight throughout the year, balancing the varying sun positions across seasons.

Environmental and Weather Considerations

Several factors can impact solar energy production in Tolland:

  • Snow accumulation in winter can temporarily reduce panel efficiency
  • Tree shading may be an issue in this heavily forested region

To mitigate these challenges, consider installing panels with a steeper tilt to encourage snow sliding off and regularly clear snow from panels. Careful site selection and tree trimming can help minimize shading issues. Additionally, using microinverters or power optimizers can help maintain system efficiency even when some panels are partially shaded.

While Tolland's location isn't ideal for year-round solar production, the strong performance in spring and summer, combined with proper installation techniques, can still make solar energy a viable option for this Connecticut town.

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 Tolland

Seasonal solar PV output for Latitude: 41.8663, Longitude: -72.3744 (Tolland, 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:

Summer
Average 5.81kWh/day in Summer.
Autumn
Average 3.45kWh/day in Autumn.
Winter
Average 2.01kWh/day in Winter.
Spring
Average 5.58kWh/day in Spring.

 

Ideally tilt fixed solar panels 36° South in Tolland, United States

To maximize your solar PV system's energy output in Tolland, United States (Lat/Long 41.8663, -72.3744) throughout the year, you should tilt your panels at an angle of 36° 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.

The sun
At Latitude: 41.8663, Longitude: -72.3744, the ideal angle to tilt panels is 36° South

Seasonally adjusted solar panel tilt angles for Tolland, 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 Tolland, United States. As mentioned earlier, for fixed-panel solar PV installations, it is optimal to maintain a 36° 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

Assuming you can modify the tilt angle of your solar PV panels throughout the year, you can optimize your solar generation in Tolland, United States as follows: In Summer, set the angle of your panels to 25° facing South. In Autumn, tilt panels to 46° facing South for maximum generation. During Winter, adjust your solar panels to a 57° angle towards the South for optimal energy production. Lastly, in Spring, position your panels at a 35° angle facing South to capture the most solar energy in Tolland, United States.

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 Tolland, 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 Tolland, United States.

Our calculation method

  1. Solar Position:
    We determine the Sun's position on the Winter solstice using the location's latitude and solar declination.
  2. Shadow Projection:
    We calculate the shadow length cast by panels using trigonometry, considering panel tilt and the Sun's elevation angle.
  3. 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.






Please enter information above to calculate panel spacing.

Topography for solar PV around Tolland, United States

The topography around Tolland, Connecticut, in the United States, is characterized by gently rolling hills and shallow valleys typical of the New England region. This area, located in the northeastern part of the state, features a mix of forested land, open fields, and small bodies of water. The terrain is generally mild, with elevations ranging from about 600 to 1,000 feet above sea level. Tolland itself sits on a plateau, with the land gradually sloping down towards the Willimantic River to the east and the Hop River to the south. The landscape is dotted with numerous small streams and ponds, creating a diverse ecosystem. The area's geology is primarily composed of glacial till and bedrock, resulting from the retreat of glaciers during the last ice age.

Potential Areas for Large-Scale Solar PV

When considering locations for large-scale solar photovoltaic (PV) installations near Tolland, several factors come into play. The most suitable areas would be those with relatively flat terrain, good sun exposure, and minimal environmental impact. One promising area for solar development could be the agricultural lands to the east and southeast of Tolland. These areas often feature open fields with fewer trees, providing ample space and sunlight for solar panels. The gently sloping terrain in this region could also be advantageous, as it allows for natural drainage while still maintaining a relatively flat surface for panel installation. Another potential location for solar PV projects could be the industrial and commercial zones along Interstate 84, which runs to the south of Tolland. These areas often have large, flat rooftops or unused parcels of land that could be repurposed for solar energy production. The proximity to existing infrastructure and power grid connections makes these sites particularly attractive for large-scale solar development. It's important to note that any solar project would need to undergo thorough environmental and zoning assessments before implementation. While the topography around Tolland offers several promising locations for solar PV, factors such as wetland preservation, wildlife habitats, and local regulations would all need to be carefully considered in the site selection process.

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

Article: Solar PV Analysis of Tolland, United States
Author: Aaron Robinson
Publisher: profileSOLAR.com
First Published: Friday 7th of February 2025
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.

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