Stonington, Connecticut, located in the Northern Temperate Zone, offers a moderate potential for solar energy generation throughout the year. The location's solar productivity varies significantly across seasons, with peak performance during summer months and reduced output in winter.

Seasonal Solar Performance

Summer stands out as the most productive season, with an average daily output of 6.12 kWh per kW of installed solar capacity. Spring follows closely behind, generating 5.77 kWh/day. Autumn sees a noticeable decrease to 3.65 kWh/day, while winter experiences the lowest output at 2.15 kWh/day.

These figures indicate that Stonington's solar potential is strongest from late spring through early fall. During this period, longer daylight hours and higher sun angles contribute to increased energy production. However, the significant drop in winter output suggests that supplementary energy sources may be necessary during colder months.

Optimal Panel Installation

To maximize year-round solar production in Stonington, 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 could potentially impact solar production in Stonington:

• Snow accumulation in winter months may temporarily reduce panel efficiency
• Coastal location might expose panels to salt spray, potentially affecting performance over time

To mitigate these issues, consider installing panels at a steeper angle to promote snow sliding off and using corrosion-resistant materials. Regular cleaning and maintenance can also help maintain optimal performance.

Despite these challenges, Stonington's location still offers a viable opportunity for solar energy production, particularly during the warmer months. With proper installation and maintenance, solar PV systems can provide a significant contribution to local energy needs 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 Stonington

Seasonal solar PV output for Latitude: 41.3359, Longitude: -71.9059 (Stonington, 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 36° South in Stonington, United States

To maximize your solar PV system's energy output in Stonington, United States (Lat/Long 41.3359, -71.9059) 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.

Seasonally adjusted solar panel tilt angles for Stonington, 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 Stonington, 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	56° South in Winter	34° 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 Stonington, 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 Stonington, 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.

Topography for solar PV around Stonington, United States

The topography around Stonington, Connecticut, located at approximately 41.3359°N, 71.9059°W, is characterized by a diverse coastal landscape. This area is part of the New England seaboard, featuring a mix of gently rolling hills, rocky outcrops, and low-lying coastal plains. The terrain is generally mild, with elevations ranging from sea level along the coast to modest hills further inland. Stonington itself is situated on a peninsula that juts out into the Atlantic Ocean, with Long Island Sound to the south and Little Narragansett Bay to the east. The coastline is irregular, marked by numerous small bays, coves, and inlets. Inland from the shore, the land gradually rises, forming undulating hills and shallow valleys. These hills are typically covered with a mix of deciduous and coniferous forests, interspersed with cleared areas for agriculture and residential development. The region's bedrock is primarily composed of metamorphic and igneous rocks, which contribute to the area's rocky outcrops and occasional steep slopes. Glacial activity during the last ice age has left its mark on the landscape, resulting in scattered glacial erratics (large boulders) and deposits of glacial till.

Suitability 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. The ideal locations would have the following characteristics: Firstly, relatively flat or gently sloping terrain is preferable for solar farms, as it reduces construction costs and simplifies panel installation. In the Stonington area, the inland regions with open fields or former agricultural lands would be most suitable from a topographical perspective. Secondly, areas with minimal shading from trees or buildings are crucial for maximizing solar energy capture. The cleared hilltops and south-facing slopes in the surrounding countryside could offer good potential for solar PV installations. Thirdly, proximity to existing electrical infrastructure is important for connecting solar farms to the grid. Areas near major roads or existing power lines would be advantageous. Considering these factors, the most suitable locations for large-scale solar PV near Stonington would likely be found in the more inland areas to the north and northwest of the town. These regions tend to have more open space, gentler topography, and fewer conflicts with coastal conservation areas or densely populated zones. However, it's important to note that any large-scale solar development would need to balance energy production goals with environmental conservation, agricultural preservation, and community concerns. The picturesque nature of the New England landscape and the region's historical significance may pose challenges to extensive solar farm development in this area.

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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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.